Java - How to read xls format data via HTTP request not file
Currently, i need to provide an API for another java application that send xls format response, while when i test in local use MockMVC to get response from my API and use HSSFWorkBook to parse it, while it failed, anyone can help me to show how implement this API in Java?
Very thanks!!!
framework: SpringMVC
my code:
@RequestMapping(value = "/report", method = RequestMethod.GET)
public ResponseEntity getReport() {
LOGGER.info("begin to get report");
// Workbook dailyReport = reportService.getDailyReport();
Workbook dailyReport = new HSSFWorkbook();
OutputStream outByteStream = new ByteArrayOutputStream();
try {
dailyReport.write(outByteStream);
LOGGER.info("end to get report");
} catch (IOException e) {
LOGGER.error("IOException when write excel to stream, e: {}", e);
}
MultiValueMap<String, String> headers = new HttpHeaders();
List<String> list = new ArrayList<>();
list.add("application/vnd.ms-excel");
headers.put(HttpHeaders.CONTENT_TYPE, list);
return new ResponseEntity(outByteStream, headers, HttpStatus.OK);
}
test method:
@Test
public void testGetMigrationDailyReport() {
String url = "/report";
try {
MvcResult mvcResult = this.mockMvc.perform(MockMvcRequestBuilders.get(url)).andExpect(status().isOk()).andReturn();
String response = mvcResult.getResponse().getContentAsString();
byte bytes = response.getBytes();
InputStream inputStream = new ByteArrayInputStream(bytes);
Workbook workbook = new HSSFWorkbook(inputStream);
Sheet sheet = workbook.getSheetAt(0);
} catch (Exception e) {
e.printStackTrace();
}
}
full stacktrace:
org.springframework.web.util.NestedServletException: Request processing failed; nested exception is java.lang.IllegalArgumentException: No converter found for return value of type: class java.io.ByteArrayOutputStream
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:979)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:858)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:687)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:843)
at org.springframework.test.web.servlet.TestDispatcherServlet.service(TestDispatcherServlet.java:65)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
at org.springframework.mock.web.MockFilterChain$ServletFilterProxy.doFilter(MockFilterChain.java:167)
at org.springframework.mock.web.MockFilterChain.doFilter(MockFilterChain.java:134)
at org.springframework.test.web.servlet.MockMvc.perform(MockMvc.java:155)
at com.cisco.csit.wbxmig.web.IntegrationControllerTest.testGetMigrationDailyReport(IntegrationControllerTest.java:59)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:75)
at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:86)
at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:84)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:254)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:89)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:193)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
Caused by: java.lang.IllegalArgumentException: No converter found for return value of type: class java.io.ByteArrayOutputStream
at org.springframework.web.servlet.mvc.method.annotation.AbstractMessageConverterMethodProcessor.writeWithMessageConverters(AbstractMessageConverterMethodProcessor.java:179)
at org.springframework.web.servlet.mvc.method.annotation.HttpEntityMethodProcessor.handleReturnValue(HttpEntityMethodProcessor.java:183)
at org.springframework.web.method.support.HandlerMethodReturnValueHandlerComposite.handleReturnValue(HandlerMethodReturnValueHandlerComposite.java:81)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:126)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:832)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:743)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:961)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:895)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:967)
... 38 more
java spring-mvc apache-poi inputstream outputstream
add a comment |
Currently, i need to provide an API for another java application that send xls format response, while when i test in local use MockMVC to get response from my API and use HSSFWorkBook to parse it, while it failed, anyone can help me to show how implement this API in Java?
Very thanks!!!
framework: SpringMVC
my code:
@RequestMapping(value = "/report", method = RequestMethod.GET)
public ResponseEntity getReport() {
LOGGER.info("begin to get report");
// Workbook dailyReport = reportService.getDailyReport();
Workbook dailyReport = new HSSFWorkbook();
OutputStream outByteStream = new ByteArrayOutputStream();
try {
dailyReport.write(outByteStream);
LOGGER.info("end to get report");
} catch (IOException e) {
LOGGER.error("IOException when write excel to stream, e: {}", e);
}
MultiValueMap<String, String> headers = new HttpHeaders();
List<String> list = new ArrayList<>();
list.add("application/vnd.ms-excel");
headers.put(HttpHeaders.CONTENT_TYPE, list);
return new ResponseEntity(outByteStream, headers, HttpStatus.OK);
}
test method:
@Test
public void testGetMigrationDailyReport() {
String url = "/report";
try {
MvcResult mvcResult = this.mockMvc.perform(MockMvcRequestBuilders.get(url)).andExpect(status().isOk()).andReturn();
String response = mvcResult.getResponse().getContentAsString();
byte bytes = response.getBytes();
InputStream inputStream = new ByteArrayInputStream(bytes);
Workbook workbook = new HSSFWorkbook(inputStream);
Sheet sheet = workbook.getSheetAt(0);
} catch (Exception e) {
e.printStackTrace();
}
}
full stacktrace:
org.springframework.web.util.NestedServletException: Request processing failed; nested exception is java.lang.IllegalArgumentException: No converter found for return value of type: class java.io.ByteArrayOutputStream
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:979)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:858)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:687)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:843)
at org.springframework.test.web.servlet.TestDispatcherServlet.service(TestDispatcherServlet.java:65)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
at org.springframework.mock.web.MockFilterChain$ServletFilterProxy.doFilter(MockFilterChain.java:167)
at org.springframework.mock.web.MockFilterChain.doFilter(MockFilterChain.java:134)
at org.springframework.test.web.servlet.MockMvc.perform(MockMvc.java:155)
at com.cisco.csit.wbxmig.web.IntegrationControllerTest.testGetMigrationDailyReport(IntegrationControllerTest.java:59)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:75)
at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:86)
at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:84)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:254)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:89)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:193)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
Caused by: java.lang.IllegalArgumentException: No converter found for return value of type: class java.io.ByteArrayOutputStream
at org.springframework.web.servlet.mvc.method.annotation.AbstractMessageConverterMethodProcessor.writeWithMessageConverters(AbstractMessageConverterMethodProcessor.java:179)
at org.springframework.web.servlet.mvc.method.annotation.HttpEntityMethodProcessor.handleReturnValue(HttpEntityMethodProcessor.java:183)
at org.springframework.web.method.support.HandlerMethodReturnValueHandlerComposite.handleReturnValue(HandlerMethodReturnValueHandlerComposite.java:81)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:126)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:832)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:743)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:961)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:895)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:967)
... 38 more
java spring-mvc apache-poi inputstream outputstream
1
I think you supposed to returnoutByteStream.toByteArray()
– secret super star
Nov 21 '18 at 7:44
See the accepted answer here: stackoverflow.com/questions/32641231/… .. Looks like it's what you need.
– Garreth Golding
Nov 21 '18 at 7:45
@secretsuperstar yep, i updated, API could send stream, while the test method could parse stream to WorkBook, will check Garreth's suggestion later
– KD Final
Nov 21 '18 at 8:12
add a comment |
Currently, i need to provide an API for another java application that send xls format response, while when i test in local use MockMVC to get response from my API and use HSSFWorkBook to parse it, while it failed, anyone can help me to show how implement this API in Java?
Very thanks!!!
framework: SpringMVC
my code:
@RequestMapping(value = "/report", method = RequestMethod.GET)
public ResponseEntity getReport() {
LOGGER.info("begin to get report");
// Workbook dailyReport = reportService.getDailyReport();
Workbook dailyReport = new HSSFWorkbook();
OutputStream outByteStream = new ByteArrayOutputStream();
try {
dailyReport.write(outByteStream);
LOGGER.info("end to get report");
} catch (IOException e) {
LOGGER.error("IOException when write excel to stream, e: {}", e);
}
MultiValueMap<String, String> headers = new HttpHeaders();
List<String> list = new ArrayList<>();
list.add("application/vnd.ms-excel");
headers.put(HttpHeaders.CONTENT_TYPE, list);
return new ResponseEntity(outByteStream, headers, HttpStatus.OK);
}
test method:
@Test
public void testGetMigrationDailyReport() {
String url = "/report";
try {
MvcResult mvcResult = this.mockMvc.perform(MockMvcRequestBuilders.get(url)).andExpect(status().isOk()).andReturn();
String response = mvcResult.getResponse().getContentAsString();
byte bytes = response.getBytes();
InputStream inputStream = new ByteArrayInputStream(bytes);
Workbook workbook = new HSSFWorkbook(inputStream);
Sheet sheet = workbook.getSheetAt(0);
} catch (Exception e) {
e.printStackTrace();
}
}
full stacktrace:
org.springframework.web.util.NestedServletException: Request processing failed; nested exception is java.lang.IllegalArgumentException: No converter found for return value of type: class java.io.ByteArrayOutputStream
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:979)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:858)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:687)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:843)
at org.springframework.test.web.servlet.TestDispatcherServlet.service(TestDispatcherServlet.java:65)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
at org.springframework.mock.web.MockFilterChain$ServletFilterProxy.doFilter(MockFilterChain.java:167)
at org.springframework.mock.web.MockFilterChain.doFilter(MockFilterChain.java:134)
at org.springframework.test.web.servlet.MockMvc.perform(MockMvc.java:155)
at com.cisco.csit.wbxmig.web.IntegrationControllerTest.testGetMigrationDailyReport(IntegrationControllerTest.java:59)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:75)
at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:86)
at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:84)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:254)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:89)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:193)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
Caused by: java.lang.IllegalArgumentException: No converter found for return value of type: class java.io.ByteArrayOutputStream
at org.springframework.web.servlet.mvc.method.annotation.AbstractMessageConverterMethodProcessor.writeWithMessageConverters(AbstractMessageConverterMethodProcessor.java:179)
at org.springframework.web.servlet.mvc.method.annotation.HttpEntityMethodProcessor.handleReturnValue(HttpEntityMethodProcessor.java:183)
at org.springframework.web.method.support.HandlerMethodReturnValueHandlerComposite.handleReturnValue(HandlerMethodReturnValueHandlerComposite.java:81)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:126)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:832)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:743)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:961)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:895)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:967)
... 38 more
java spring-mvc apache-poi inputstream outputstream
Currently, i need to provide an API for another java application that send xls format response, while when i test in local use MockMVC to get response from my API and use HSSFWorkBook to parse it, while it failed, anyone can help me to show how implement this API in Java?
Very thanks!!!
framework: SpringMVC
my code:
@RequestMapping(value = "/report", method = RequestMethod.GET)
public ResponseEntity getReport() {
LOGGER.info("begin to get report");
// Workbook dailyReport = reportService.getDailyReport();
Workbook dailyReport = new HSSFWorkbook();
OutputStream outByteStream = new ByteArrayOutputStream();
try {
dailyReport.write(outByteStream);
LOGGER.info("end to get report");
} catch (IOException e) {
LOGGER.error("IOException when write excel to stream, e: {}", e);
}
MultiValueMap<String, String> headers = new HttpHeaders();
List<String> list = new ArrayList<>();
list.add("application/vnd.ms-excel");
headers.put(HttpHeaders.CONTENT_TYPE, list);
return new ResponseEntity(outByteStream, headers, HttpStatus.OK);
}
test method:
@Test
public void testGetMigrationDailyReport() {
String url = "/report";
try {
MvcResult mvcResult = this.mockMvc.perform(MockMvcRequestBuilders.get(url)).andExpect(status().isOk()).andReturn();
String response = mvcResult.getResponse().getContentAsString();
byte bytes = response.getBytes();
InputStream inputStream = new ByteArrayInputStream(bytes);
Workbook workbook = new HSSFWorkbook(inputStream);
Sheet sheet = workbook.getSheetAt(0);
} catch (Exception e) {
e.printStackTrace();
}
}
full stacktrace:
org.springframework.web.util.NestedServletException: Request processing failed; nested exception is java.lang.IllegalArgumentException: No converter found for return value of type: class java.io.ByteArrayOutputStream
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:979)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:858)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:687)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:843)
at org.springframework.test.web.servlet.TestDispatcherServlet.service(TestDispatcherServlet.java:65)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
at org.springframework.mock.web.MockFilterChain$ServletFilterProxy.doFilter(MockFilterChain.java:167)
at org.springframework.mock.web.MockFilterChain.doFilter(MockFilterChain.java:134)
at org.springframework.test.web.servlet.MockMvc.perform(MockMvc.java:155)
at com.cisco.csit.wbxmig.web.IntegrationControllerTest.testGetMigrationDailyReport(IntegrationControllerTest.java:59)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:75)
at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:86)
at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:84)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:254)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:89)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:193)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
Caused by: java.lang.IllegalArgumentException: No converter found for return value of type: class java.io.ByteArrayOutputStream
at org.springframework.web.servlet.mvc.method.annotation.AbstractMessageConverterMethodProcessor.writeWithMessageConverters(AbstractMessageConverterMethodProcessor.java:179)
at org.springframework.web.servlet.mvc.method.annotation.HttpEntityMethodProcessor.handleReturnValue(HttpEntityMethodProcessor.java:183)
at org.springframework.web.method.support.HandlerMethodReturnValueHandlerComposite.handleReturnValue(HandlerMethodReturnValueHandlerComposite.java:81)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:126)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:832)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:743)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:961)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:895)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:967)
... 38 more
java spring-mvc apache-poi inputstream outputstream
java spring-mvc apache-poi inputstream outputstream
asked Nov 21 '18 at 7:14
KD Final
987
987
1
I think you supposed to returnoutByteStream.toByteArray()
– secret super star
Nov 21 '18 at 7:44
See the accepted answer here: stackoverflow.com/questions/32641231/… .. Looks like it's what you need.
– Garreth Golding
Nov 21 '18 at 7:45
@secretsuperstar yep, i updated, API could send stream, while the test method could parse stream to WorkBook, will check Garreth's suggestion later
– KD Final
Nov 21 '18 at 8:12
add a comment |
1
I think you supposed to returnoutByteStream.toByteArray()
– secret super star
Nov 21 '18 at 7:44
See the accepted answer here: stackoverflow.com/questions/32641231/… .. Looks like it's what you need.
– Garreth Golding
Nov 21 '18 at 7:45
@secretsuperstar yep, i updated, API could send stream, while the test method could parse stream to WorkBook, will check Garreth's suggestion later
– KD Final
Nov 21 '18 at 8:12
1
1
I think you supposed to return
outByteStream.toByteArray()
– secret super star
Nov 21 '18 at 7:44
I think you supposed to return
outByteStream.toByteArray()
– secret super star
Nov 21 '18 at 7:44
See the accepted answer here: stackoverflow.com/questions/32641231/… .. Looks like it's what you need.
– Garreth Golding
Nov 21 '18 at 7:45
See the accepted answer here: stackoverflow.com/questions/32641231/… .. Looks like it's what you need.
– Garreth Golding
Nov 21 '18 at 7:45
@secretsuperstar yep, i updated, API could send stream, while the test method could parse stream to WorkBook, will check Garreth's suggestion later
– KD Final
Nov 21 '18 at 8:12
@secretsuperstar yep, i updated, API could send stream, while the test method could parse stream to WorkBook, will check Garreth's suggestion later
– KD Final
Nov 21 '18 at 8:12
add a comment |
1 Answer
1
active
oldest
votes
I have tried the below:
It works well. The difference is I am doing ByteArrayOutputStream.getBytes()
.
@GetMapping("/down")
public ResponseEntity<byte> down() throws IOException {
ByteArrayOutputStream outByteStream = new ByteArrayOutputStream();
Workbook wb = new HSSFWorkbook();
for(int sNo=1;sNo<=5;sNo++) {
Sheet sheet = wb.createSheet("s"+sNo);
for(int i=1;i<6;i++) {
Row row = sheet.createRow(i);
for(int j=1;j<=5;j++) {
Cell cell = row.createCell(j);
cell.setCellValue("test "+j);
}
}
}
wb.write(outByteStream);
wb.close();
MultiValueMap<String, String> headers = new HttpHeaders();
List<String> list = new ArrayList<>();
list.add("application/vnd.ms-excel");
headers.put(HttpHeaders.CONTENT_TYPE, list);
return new ResponseEntity<byte>(outByteStream.toByteArray(),headers, HttpStatus.OK);
}
Adding test
.
The trick is create file from response and then read it again
create file from response
FileOutputStream fos = new FileOutputStream("/Users/me/Desktop/output.xlsx");
fos.write(bytes);
fos.close();
read file
FileInputStream fis = new FileInputStream("/Users/me/Desktop/output.xlsx");
Workbook wb = WorkbookFactory.create(fis);
Whole test class
import java.io.ByteArrayOutputStream;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.ss.usermodel.WorkbookFactory;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
import org.springframework.security.test.web.servlet.setup.SecurityMockMvcConfigurers;
import org.springframework.security.web.FilterChainProxy;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringRunner;
import org.springframework.test.context.web.WebAppConfiguration;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.test.web.servlet.MvcResult;
import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
import org.springframework.test.web.servlet.result.MockMvcResultMatchers;
import org.springframework.test.web.servlet.setup.MockMvcBuilders;
import org.springframework.web.context.WebApplicationContext;
import com.techdisqus.App;
import com.techdisqus.config.SpringSecurityConfig;
import com.techdisqus.controller.DefaultController;
@RunWith(SpringRunner.class)
/*@SpringBootTest
@ContextConfiguration*/
@WebMvcTest(DefaultController.class)
@ContextConfiguration(classes= {App.class,SpringSecurityConfig.class
})
@WebAppConfiguration
public class MvcTest {
@Autowired
private MockMvc mockMvc;
@Autowired
private FilterChainProxy springSecurityFilterChain;
@Autowired
private WebApplicationContext wac;
@Before
public void setup() {
this.mockMvc = MockMvcBuilders.webAppContextSetup(this.wac)
.addFilters(this.springSecurityFilterChain).apply(SecurityMockMvcConfigurers.springSecurity()).build();
}
@Test
public void testDown() {
String url = "/down";
try {
MvcResult mvcResult = this.mockMvc.perform(MockMvcRequestBuilders.get(url)).andExpect(MockMvcResultMatchers.status().isOk()).andReturn();
byte bytes = mvcResult.getResponse().getContentAsByteArray();
FileOutputStream fos = new FileOutputStream("/Users/me/Desktop/output.xlsx");
fos.write(bytes);
fos.close();
FileInputStream fis = new FileInputStream("/Users/me/Desktop/output.xlsx");
Workbook wb = WorkbookFactory.create(fis);
int count = wb.getNumberOfSheets();
System.out.println("count "+count);
for(int i=0;i<count;i++) {
System.out.println(wb.getSheetAt(i).getSheetName());
//perform asserts here if needed
}
System.out.println("done!");
} catch (Exception e) {
e.printStackTrace();
}
}
}
Hi @secret super star, what about the test method, the test was failed causeNotOLE2FileException: Invalid header signature; read 0xC2A0C3118FC390C3, expected 0xE11AB1A1E011CFD0 - Your file appears not to be a valid OLE2 document
when i use POI read it. Any suggestion?
– KD Final
Nov 21 '18 at 8:15
Similar question here : stackoverflow.com/questions/33879515/…
– secret super star
Nov 21 '18 at 8:22
what about use workbook as your stream content, just like that:ByteArrayOutputStream outByteStream = new ByteArrayOutputStream(); Workbook dailyReport = new HSSFWorkbook(); Sheet ddd = dailyReport.createSheet("ddd"); ddd.createRow(0).createCell(0).setCellValue("dddd"); dailyReport.write(outByteStream);
– KD Final
Nov 21 '18 at 9:15
You supposed to read asmvcResult.getResponse().getContentAsByteArray();
– secret super star
Nov 21 '18 at 10:39
Why do you want to create sheet ? are you doing inApi
or test?
– secret super star
Nov 21 '18 at 10:55
|
show 7 more comments
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
I have tried the below:
It works well. The difference is I am doing ByteArrayOutputStream.getBytes()
.
@GetMapping("/down")
public ResponseEntity<byte> down() throws IOException {
ByteArrayOutputStream outByteStream = new ByteArrayOutputStream();
Workbook wb = new HSSFWorkbook();
for(int sNo=1;sNo<=5;sNo++) {
Sheet sheet = wb.createSheet("s"+sNo);
for(int i=1;i<6;i++) {
Row row = sheet.createRow(i);
for(int j=1;j<=5;j++) {
Cell cell = row.createCell(j);
cell.setCellValue("test "+j);
}
}
}
wb.write(outByteStream);
wb.close();
MultiValueMap<String, String> headers = new HttpHeaders();
List<String> list = new ArrayList<>();
list.add("application/vnd.ms-excel");
headers.put(HttpHeaders.CONTENT_TYPE, list);
return new ResponseEntity<byte>(outByteStream.toByteArray(),headers, HttpStatus.OK);
}
Adding test
.
The trick is create file from response and then read it again
create file from response
FileOutputStream fos = new FileOutputStream("/Users/me/Desktop/output.xlsx");
fos.write(bytes);
fos.close();
read file
FileInputStream fis = new FileInputStream("/Users/me/Desktop/output.xlsx");
Workbook wb = WorkbookFactory.create(fis);
Whole test class
import java.io.ByteArrayOutputStream;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.ss.usermodel.WorkbookFactory;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
import org.springframework.security.test.web.servlet.setup.SecurityMockMvcConfigurers;
import org.springframework.security.web.FilterChainProxy;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringRunner;
import org.springframework.test.context.web.WebAppConfiguration;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.test.web.servlet.MvcResult;
import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
import org.springframework.test.web.servlet.result.MockMvcResultMatchers;
import org.springframework.test.web.servlet.setup.MockMvcBuilders;
import org.springframework.web.context.WebApplicationContext;
import com.techdisqus.App;
import com.techdisqus.config.SpringSecurityConfig;
import com.techdisqus.controller.DefaultController;
@RunWith(SpringRunner.class)
/*@SpringBootTest
@ContextConfiguration*/
@WebMvcTest(DefaultController.class)
@ContextConfiguration(classes= {App.class,SpringSecurityConfig.class
})
@WebAppConfiguration
public class MvcTest {
@Autowired
private MockMvc mockMvc;
@Autowired
private FilterChainProxy springSecurityFilterChain;
@Autowired
private WebApplicationContext wac;
@Before
public void setup() {
this.mockMvc = MockMvcBuilders.webAppContextSetup(this.wac)
.addFilters(this.springSecurityFilterChain).apply(SecurityMockMvcConfigurers.springSecurity()).build();
}
@Test
public void testDown() {
String url = "/down";
try {
MvcResult mvcResult = this.mockMvc.perform(MockMvcRequestBuilders.get(url)).andExpect(MockMvcResultMatchers.status().isOk()).andReturn();
byte bytes = mvcResult.getResponse().getContentAsByteArray();
FileOutputStream fos = new FileOutputStream("/Users/me/Desktop/output.xlsx");
fos.write(bytes);
fos.close();
FileInputStream fis = new FileInputStream("/Users/me/Desktop/output.xlsx");
Workbook wb = WorkbookFactory.create(fis);
int count = wb.getNumberOfSheets();
System.out.println("count "+count);
for(int i=0;i<count;i++) {
System.out.println(wb.getSheetAt(i).getSheetName());
//perform asserts here if needed
}
System.out.println("done!");
} catch (Exception e) {
e.printStackTrace();
}
}
}
Hi @secret super star, what about the test method, the test was failed causeNotOLE2FileException: Invalid header signature; read 0xC2A0C3118FC390C3, expected 0xE11AB1A1E011CFD0 - Your file appears not to be a valid OLE2 document
when i use POI read it. Any suggestion?
– KD Final
Nov 21 '18 at 8:15
Similar question here : stackoverflow.com/questions/33879515/…
– secret super star
Nov 21 '18 at 8:22
what about use workbook as your stream content, just like that:ByteArrayOutputStream outByteStream = new ByteArrayOutputStream(); Workbook dailyReport = new HSSFWorkbook(); Sheet ddd = dailyReport.createSheet("ddd"); ddd.createRow(0).createCell(0).setCellValue("dddd"); dailyReport.write(outByteStream);
– KD Final
Nov 21 '18 at 9:15
You supposed to read asmvcResult.getResponse().getContentAsByteArray();
– secret super star
Nov 21 '18 at 10:39
Why do you want to create sheet ? are you doing inApi
or test?
– secret super star
Nov 21 '18 at 10:55
|
show 7 more comments
I have tried the below:
It works well. The difference is I am doing ByteArrayOutputStream.getBytes()
.
@GetMapping("/down")
public ResponseEntity<byte> down() throws IOException {
ByteArrayOutputStream outByteStream = new ByteArrayOutputStream();
Workbook wb = new HSSFWorkbook();
for(int sNo=1;sNo<=5;sNo++) {
Sheet sheet = wb.createSheet("s"+sNo);
for(int i=1;i<6;i++) {
Row row = sheet.createRow(i);
for(int j=1;j<=5;j++) {
Cell cell = row.createCell(j);
cell.setCellValue("test "+j);
}
}
}
wb.write(outByteStream);
wb.close();
MultiValueMap<String, String> headers = new HttpHeaders();
List<String> list = new ArrayList<>();
list.add("application/vnd.ms-excel");
headers.put(HttpHeaders.CONTENT_TYPE, list);
return new ResponseEntity<byte>(outByteStream.toByteArray(),headers, HttpStatus.OK);
}
Adding test
.
The trick is create file from response and then read it again
create file from response
FileOutputStream fos = new FileOutputStream("/Users/me/Desktop/output.xlsx");
fos.write(bytes);
fos.close();
read file
FileInputStream fis = new FileInputStream("/Users/me/Desktop/output.xlsx");
Workbook wb = WorkbookFactory.create(fis);
Whole test class
import java.io.ByteArrayOutputStream;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.ss.usermodel.WorkbookFactory;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
import org.springframework.security.test.web.servlet.setup.SecurityMockMvcConfigurers;
import org.springframework.security.web.FilterChainProxy;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringRunner;
import org.springframework.test.context.web.WebAppConfiguration;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.test.web.servlet.MvcResult;
import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
import org.springframework.test.web.servlet.result.MockMvcResultMatchers;
import org.springframework.test.web.servlet.setup.MockMvcBuilders;
import org.springframework.web.context.WebApplicationContext;
import com.techdisqus.App;
import com.techdisqus.config.SpringSecurityConfig;
import com.techdisqus.controller.DefaultController;
@RunWith(SpringRunner.class)
/*@SpringBootTest
@ContextConfiguration*/
@WebMvcTest(DefaultController.class)
@ContextConfiguration(classes= {App.class,SpringSecurityConfig.class
})
@WebAppConfiguration
public class MvcTest {
@Autowired
private MockMvc mockMvc;
@Autowired
private FilterChainProxy springSecurityFilterChain;
@Autowired
private WebApplicationContext wac;
@Before
public void setup() {
this.mockMvc = MockMvcBuilders.webAppContextSetup(this.wac)
.addFilters(this.springSecurityFilterChain).apply(SecurityMockMvcConfigurers.springSecurity()).build();
}
@Test
public void testDown() {
String url = "/down";
try {
MvcResult mvcResult = this.mockMvc.perform(MockMvcRequestBuilders.get(url)).andExpect(MockMvcResultMatchers.status().isOk()).andReturn();
byte bytes = mvcResult.getResponse().getContentAsByteArray();
FileOutputStream fos = new FileOutputStream("/Users/me/Desktop/output.xlsx");
fos.write(bytes);
fos.close();
FileInputStream fis = new FileInputStream("/Users/me/Desktop/output.xlsx");
Workbook wb = WorkbookFactory.create(fis);
int count = wb.getNumberOfSheets();
System.out.println("count "+count);
for(int i=0;i<count;i++) {
System.out.println(wb.getSheetAt(i).getSheetName());
//perform asserts here if needed
}
System.out.println("done!");
} catch (Exception e) {
e.printStackTrace();
}
}
}
Hi @secret super star, what about the test method, the test was failed causeNotOLE2FileException: Invalid header signature; read 0xC2A0C3118FC390C3, expected 0xE11AB1A1E011CFD0 - Your file appears not to be a valid OLE2 document
when i use POI read it. Any suggestion?
– KD Final
Nov 21 '18 at 8:15
Similar question here : stackoverflow.com/questions/33879515/…
– secret super star
Nov 21 '18 at 8:22
what about use workbook as your stream content, just like that:ByteArrayOutputStream outByteStream = new ByteArrayOutputStream(); Workbook dailyReport = new HSSFWorkbook(); Sheet ddd = dailyReport.createSheet("ddd"); ddd.createRow(0).createCell(0).setCellValue("dddd"); dailyReport.write(outByteStream);
– KD Final
Nov 21 '18 at 9:15
You supposed to read asmvcResult.getResponse().getContentAsByteArray();
– secret super star
Nov 21 '18 at 10:39
Why do you want to create sheet ? are you doing inApi
or test?
– secret super star
Nov 21 '18 at 10:55
|
show 7 more comments
I have tried the below:
It works well. The difference is I am doing ByteArrayOutputStream.getBytes()
.
@GetMapping("/down")
public ResponseEntity<byte> down() throws IOException {
ByteArrayOutputStream outByteStream = new ByteArrayOutputStream();
Workbook wb = new HSSFWorkbook();
for(int sNo=1;sNo<=5;sNo++) {
Sheet sheet = wb.createSheet("s"+sNo);
for(int i=1;i<6;i++) {
Row row = sheet.createRow(i);
for(int j=1;j<=5;j++) {
Cell cell = row.createCell(j);
cell.setCellValue("test "+j);
}
}
}
wb.write(outByteStream);
wb.close();
MultiValueMap<String, String> headers = new HttpHeaders();
List<String> list = new ArrayList<>();
list.add("application/vnd.ms-excel");
headers.put(HttpHeaders.CONTENT_TYPE, list);
return new ResponseEntity<byte>(outByteStream.toByteArray(),headers, HttpStatus.OK);
}
Adding test
.
The trick is create file from response and then read it again
create file from response
FileOutputStream fos = new FileOutputStream("/Users/me/Desktop/output.xlsx");
fos.write(bytes);
fos.close();
read file
FileInputStream fis = new FileInputStream("/Users/me/Desktop/output.xlsx");
Workbook wb = WorkbookFactory.create(fis);
Whole test class
import java.io.ByteArrayOutputStream;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.ss.usermodel.WorkbookFactory;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
import org.springframework.security.test.web.servlet.setup.SecurityMockMvcConfigurers;
import org.springframework.security.web.FilterChainProxy;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringRunner;
import org.springframework.test.context.web.WebAppConfiguration;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.test.web.servlet.MvcResult;
import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
import org.springframework.test.web.servlet.result.MockMvcResultMatchers;
import org.springframework.test.web.servlet.setup.MockMvcBuilders;
import org.springframework.web.context.WebApplicationContext;
import com.techdisqus.App;
import com.techdisqus.config.SpringSecurityConfig;
import com.techdisqus.controller.DefaultController;
@RunWith(SpringRunner.class)
/*@SpringBootTest
@ContextConfiguration*/
@WebMvcTest(DefaultController.class)
@ContextConfiguration(classes= {App.class,SpringSecurityConfig.class
})
@WebAppConfiguration
public class MvcTest {
@Autowired
private MockMvc mockMvc;
@Autowired
private FilterChainProxy springSecurityFilterChain;
@Autowired
private WebApplicationContext wac;
@Before
public void setup() {
this.mockMvc = MockMvcBuilders.webAppContextSetup(this.wac)
.addFilters(this.springSecurityFilterChain).apply(SecurityMockMvcConfigurers.springSecurity()).build();
}
@Test
public void testDown() {
String url = "/down";
try {
MvcResult mvcResult = this.mockMvc.perform(MockMvcRequestBuilders.get(url)).andExpect(MockMvcResultMatchers.status().isOk()).andReturn();
byte bytes = mvcResult.getResponse().getContentAsByteArray();
FileOutputStream fos = new FileOutputStream("/Users/me/Desktop/output.xlsx");
fos.write(bytes);
fos.close();
FileInputStream fis = new FileInputStream("/Users/me/Desktop/output.xlsx");
Workbook wb = WorkbookFactory.create(fis);
int count = wb.getNumberOfSheets();
System.out.println("count "+count);
for(int i=0;i<count;i++) {
System.out.println(wb.getSheetAt(i).getSheetName());
//perform asserts here if needed
}
System.out.println("done!");
} catch (Exception e) {
e.printStackTrace();
}
}
}
I have tried the below:
It works well. The difference is I am doing ByteArrayOutputStream.getBytes()
.
@GetMapping("/down")
public ResponseEntity<byte> down() throws IOException {
ByteArrayOutputStream outByteStream = new ByteArrayOutputStream();
Workbook wb = new HSSFWorkbook();
for(int sNo=1;sNo<=5;sNo++) {
Sheet sheet = wb.createSheet("s"+sNo);
for(int i=1;i<6;i++) {
Row row = sheet.createRow(i);
for(int j=1;j<=5;j++) {
Cell cell = row.createCell(j);
cell.setCellValue("test "+j);
}
}
}
wb.write(outByteStream);
wb.close();
MultiValueMap<String, String> headers = new HttpHeaders();
List<String> list = new ArrayList<>();
list.add("application/vnd.ms-excel");
headers.put(HttpHeaders.CONTENT_TYPE, list);
return new ResponseEntity<byte>(outByteStream.toByteArray(),headers, HttpStatus.OK);
}
Adding test
.
The trick is create file from response and then read it again
create file from response
FileOutputStream fos = new FileOutputStream("/Users/me/Desktop/output.xlsx");
fos.write(bytes);
fos.close();
read file
FileInputStream fis = new FileInputStream("/Users/me/Desktop/output.xlsx");
Workbook wb = WorkbookFactory.create(fis);
Whole test class
import java.io.ByteArrayOutputStream;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.ss.usermodel.WorkbookFactory;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
import org.springframework.security.test.web.servlet.setup.SecurityMockMvcConfigurers;
import org.springframework.security.web.FilterChainProxy;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringRunner;
import org.springframework.test.context.web.WebAppConfiguration;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.test.web.servlet.MvcResult;
import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
import org.springframework.test.web.servlet.result.MockMvcResultMatchers;
import org.springframework.test.web.servlet.setup.MockMvcBuilders;
import org.springframework.web.context.WebApplicationContext;
import com.techdisqus.App;
import com.techdisqus.config.SpringSecurityConfig;
import com.techdisqus.controller.DefaultController;
@RunWith(SpringRunner.class)
/*@SpringBootTest
@ContextConfiguration*/
@WebMvcTest(DefaultController.class)
@ContextConfiguration(classes= {App.class,SpringSecurityConfig.class
})
@WebAppConfiguration
public class MvcTest {
@Autowired
private MockMvc mockMvc;
@Autowired
private FilterChainProxy springSecurityFilterChain;
@Autowired
private WebApplicationContext wac;
@Before
public void setup() {
this.mockMvc = MockMvcBuilders.webAppContextSetup(this.wac)
.addFilters(this.springSecurityFilterChain).apply(SecurityMockMvcConfigurers.springSecurity()).build();
}
@Test
public void testDown() {
String url = "/down";
try {
MvcResult mvcResult = this.mockMvc.perform(MockMvcRequestBuilders.get(url)).andExpect(MockMvcResultMatchers.status().isOk()).andReturn();
byte bytes = mvcResult.getResponse().getContentAsByteArray();
FileOutputStream fos = new FileOutputStream("/Users/me/Desktop/output.xlsx");
fos.write(bytes);
fos.close();
FileInputStream fis = new FileInputStream("/Users/me/Desktop/output.xlsx");
Workbook wb = WorkbookFactory.create(fis);
int count = wb.getNumberOfSheets();
System.out.println("count "+count);
for(int i=0;i<count;i++) {
System.out.println(wb.getSheetAt(i).getSheetName());
//perform asserts here if needed
}
System.out.println("done!");
} catch (Exception e) {
e.printStackTrace();
}
}
}
edited Nov 21 '18 at 11:52
answered Nov 21 '18 at 8:12
secret super star
91213
91213
Hi @secret super star, what about the test method, the test was failed causeNotOLE2FileException: Invalid header signature; read 0xC2A0C3118FC390C3, expected 0xE11AB1A1E011CFD0 - Your file appears not to be a valid OLE2 document
when i use POI read it. Any suggestion?
– KD Final
Nov 21 '18 at 8:15
Similar question here : stackoverflow.com/questions/33879515/…
– secret super star
Nov 21 '18 at 8:22
what about use workbook as your stream content, just like that:ByteArrayOutputStream outByteStream = new ByteArrayOutputStream(); Workbook dailyReport = new HSSFWorkbook(); Sheet ddd = dailyReport.createSheet("ddd"); ddd.createRow(0).createCell(0).setCellValue("dddd"); dailyReport.write(outByteStream);
– KD Final
Nov 21 '18 at 9:15
You supposed to read asmvcResult.getResponse().getContentAsByteArray();
– secret super star
Nov 21 '18 at 10:39
Why do you want to create sheet ? are you doing inApi
or test?
– secret super star
Nov 21 '18 at 10:55
|
show 7 more comments
Hi @secret super star, what about the test method, the test was failed causeNotOLE2FileException: Invalid header signature; read 0xC2A0C3118FC390C3, expected 0xE11AB1A1E011CFD0 - Your file appears not to be a valid OLE2 document
when i use POI read it. Any suggestion?
– KD Final
Nov 21 '18 at 8:15
Similar question here : stackoverflow.com/questions/33879515/…
– secret super star
Nov 21 '18 at 8:22
what about use workbook as your stream content, just like that:ByteArrayOutputStream outByteStream = new ByteArrayOutputStream(); Workbook dailyReport = new HSSFWorkbook(); Sheet ddd = dailyReport.createSheet("ddd"); ddd.createRow(0).createCell(0).setCellValue("dddd"); dailyReport.write(outByteStream);
– KD Final
Nov 21 '18 at 9:15
You supposed to read asmvcResult.getResponse().getContentAsByteArray();
– secret super star
Nov 21 '18 at 10:39
Why do you want to create sheet ? are you doing inApi
or test?
– secret super star
Nov 21 '18 at 10:55
Hi @secret super star, what about the test method, the test was failed cause
NotOLE2FileException: Invalid header signature; read 0xC2A0C3118FC390C3, expected 0xE11AB1A1E011CFD0 - Your file appears not to be a valid OLE2 document
when i use POI read it. Any suggestion?– KD Final
Nov 21 '18 at 8:15
Hi @secret super star, what about the test method, the test was failed cause
NotOLE2FileException: Invalid header signature; read 0xC2A0C3118FC390C3, expected 0xE11AB1A1E011CFD0 - Your file appears not to be a valid OLE2 document
when i use POI read it. Any suggestion?– KD Final
Nov 21 '18 at 8:15
Similar question here : stackoverflow.com/questions/33879515/…
– secret super star
Nov 21 '18 at 8:22
Similar question here : stackoverflow.com/questions/33879515/…
– secret super star
Nov 21 '18 at 8:22
what about use workbook as your stream content, just like that:
ByteArrayOutputStream outByteStream = new ByteArrayOutputStream(); Workbook dailyReport = new HSSFWorkbook(); Sheet ddd = dailyReport.createSheet("ddd"); ddd.createRow(0).createCell(0).setCellValue("dddd"); dailyReport.write(outByteStream);
– KD Final
Nov 21 '18 at 9:15
what about use workbook as your stream content, just like that:
ByteArrayOutputStream outByteStream = new ByteArrayOutputStream(); Workbook dailyReport = new HSSFWorkbook(); Sheet ddd = dailyReport.createSheet("ddd"); ddd.createRow(0).createCell(0).setCellValue("dddd"); dailyReport.write(outByteStream);
– KD Final
Nov 21 '18 at 9:15
You supposed to read as
mvcResult.getResponse().getContentAsByteArray();
– secret super star
Nov 21 '18 at 10:39
You supposed to read as
mvcResult.getResponse().getContentAsByteArray();
– secret super star
Nov 21 '18 at 10:39
Why do you want to create sheet ? are you doing in
Api
or test?– secret super star
Nov 21 '18 at 10:55
Why do you want to create sheet ? are you doing in
Api
or test?– secret super star
Nov 21 '18 at 10:55
|
show 7 more comments
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1
I think you supposed to return
outByteStream.toByteArray()
– secret super star
Nov 21 '18 at 7:44
See the accepted answer here: stackoverflow.com/questions/32641231/… .. Looks like it's what you need.
– Garreth Golding
Nov 21 '18 at 7:45
@secretsuperstar yep, i updated, API could send stream, while the test method could parse stream to WorkBook, will check Garreth's suggestion later
– KD Final
Nov 21 '18 at 8:12