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custom error message

This commit is contained in:
DOHA 2016-01-18 21:35:58 +02:00
parent 24de497e5b
commit d0d0406ae7
7 changed files with 327 additions and 3 deletions
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22
spring-security-rest/pom.xml
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@ -139,7 +139,26 @@
</dependency>
<!-- test scoped -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${org.springframework.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.jayway.restassured</groupId>
<artifactId>rest-assured</artifactId>
<version>${rest-assured.version}</version>
<scope>test</scope>
<exclusions>
<exclusion>
<artifactId>commons-logging</artifactId>
<groupId>commons-logging</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
@ -276,6 +295,7 @@
<org.hamcrest.version>1.3</org.hamcrest.version>
<junit.version>4.12</junit.version>
<mockito.version>1.10.19</mockito.version>
<rest-assured.version>2.4.1</rest-assured.version>
<!-- swagger -->
<springfox-swagger.version>2.2.2</springfox-swagger.version>

63
spring-security-rest/src/main/java/org/baeldung/web/ApiError.java Normal file
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@ -0,0 +1,63 @@
package org.baeldung.web;
import java.util.Arrays;
import java.util.List;
import org.springframework.http.HttpStatus;
public class ApiError {
private HttpStatus status;
private String message;
private List<String> errors;
//
public ApiError() {
super();
}
public ApiError(final HttpStatus status, final String message, final List<String> errors) {
super();
this.status = status;
this.message = message;
this.errors = errors;
}
public ApiError(final HttpStatus status, final String message, final String error) {
super();
this.status = status;
this.message = message;
errors = Arrays.asList(error);
}
//
public HttpStatus getStatus() {
return status;
}
public void setStatus(final HttpStatus status) {
this.status = status;
}
public String getMessage() {
return message;
}
public void setMessage(final String message) {
this.message = message;
}
public List<String> getErrors() {
return errors;
}
public void setErrors(final List<String> errors) {
this.errors = errors;
}
public void setError(final String error) {
errors = Arrays.asList(error);
}
}

152
spring-security-rest/src/main/java/org/baeldung/web/CustomRestExceptionHandler.java Normal file
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@ -0,0 +1,152 @@
package org.baeldung.web;
import java.util.ArrayList;
import java.util.List;
import org.springframework.beans.TypeMismatchException;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.validation.BindException;
import org.springframework.validation.FieldError;
import org.springframework.validation.ObjectError;
import org.springframework.web.HttpMediaTypeNotSupportedException;
import org.springframework.web.HttpRequestMethodNotSupportedException;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.MissingServletRequestParameterException;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.context.request.WebRequest;
import org.springframework.web.method.annotation.MethodArgumentTypeMismatchException;
import org.springframework.web.multipart.support.MissingServletRequestPartException;
import org.springframework.web.servlet.NoHandlerFoundException;
import org.springframework.web.servlet.mvc.method.annotation.ResponseEntityExceptionHandler;
@ControllerAdvice
public class CustomRestExceptionHandler extends ResponseEntityExceptionHandler {
// 400
@Override
protected ResponseEntity<Object> handleMethodArgumentNotValid(final MethodArgumentNotValidException ex, final HttpHeaders headers, final HttpStatus status, final WebRequest request) {
logger.info(ex.getClass().getName());
//
final List<String> errors = new ArrayList<String>();
for (final FieldError error : ex.getBindingResult().getFieldErrors()) {
errors.add(error.getField() + ": " + error.getDefaultMessage());
}
for (final ObjectError error : ex.getBindingResult().getGlobalErrors()) {
errors.add(error.getObjectName() + ": " + error.getDefaultMessage());
}
final ApiError apiError = new ApiError(HttpStatus.BAD_REQUEST, ex.getLocalizedMessage(), errors);
return handleExceptionInternal(ex, apiError, headers, apiError.getStatus(), request);
}
@Override
protected ResponseEntity<Object> handleBindException(final BindException ex, final HttpHeaders headers, final HttpStatus status, final WebRequest request) {
logger.info(ex.getClass().getName());
//
final List<String> errors = new ArrayList<String>();
for (final FieldError error : ex.getBindingResult().getFieldErrors()) {
errors.add(error.getField() + ": " + error.getDefaultMessage());
}
for (final ObjectError error : ex.getBindingResult().getGlobalErrors()) {
errors.add(error.getObjectName() + ": " + error.getDefaultMessage());
}
final ApiError apiError = new ApiError(HttpStatus.BAD_REQUEST, ex.getLocalizedMessage(), errors);
return handleExceptionInternal(ex, apiError, headers, apiError.getStatus(), request);
}
@Override
protected ResponseEntity<Object> handleTypeMismatch(final TypeMismatchException ex, final HttpHeaders headers, final HttpStatus status, final WebRequest request) {
logger.info(ex.getClass().getName());
//
final String error = ex.getValue() + " value for " + ex.getPropertyName() + " should be of type " + ex.getRequiredType();
final ApiError apiError = new ApiError(HttpStatus.BAD_REQUEST, ex.getLocalizedMessage(), error);
return new ResponseEntity<Object>(apiError, new HttpHeaders(), apiError.getStatus());
}
@ExceptionHandler({ MethodArgumentTypeMismatchException.class })
public ResponseEntity<Object> handleMethodArgumentTypeMismatch(final MethodArgumentTypeMismatchException ex, final WebRequest request) {
logger.info(ex.getClass().getName());
//
final String error = ex.getName() + " should be of type " + ex.getRequiredType().getName();
final ApiError apiError = new ApiError(HttpStatus.BAD_REQUEST, ex.getLocalizedMessage(), error);
return new ResponseEntity<Object>(apiError, new HttpHeaders(), apiError.getStatus());
}
@Override
protected ResponseEntity<Object> handleMissingServletRequestPart(final MissingServletRequestPartException ex, final HttpHeaders headers, final HttpStatus status, final WebRequest request) {
logger.info(ex.getClass().getName());
//
final String error = ex.getRequestPartName() + " part is missing";
final ApiError apiError = new ApiError(HttpStatus.BAD_REQUEST, ex.getLocalizedMessage(), error);
return new ResponseEntity<Object>(apiError, new HttpHeaders(), apiError.getStatus());
}
@Override
protected ResponseEntity<Object> handleMissingServletRequestParameter(final MissingServletRequestParameterException ex, final HttpHeaders headers, final HttpStatus status, final WebRequest request) {
logger.info(ex.getClass().getName());
//
final String error = ex.getParameterName() + " parameter is missing";
final ApiError apiError = new ApiError(HttpStatus.BAD_REQUEST, ex.getLocalizedMessage(), error);
return new ResponseEntity<Object>(apiError, new HttpHeaders(), apiError.getStatus());
}
// 404
@Override
protected ResponseEntity<Object> handleNoHandlerFoundException(final NoHandlerFoundException ex, final HttpHeaders headers, final HttpStatus status, final WebRequest request) {
logger.info(ex.getClass().getName());
//
final String error = "No handler found for " + ex.getHttpMethod() + " " + ex.getRequestURL();
final ApiError apiError = new ApiError(HttpStatus.NOT_FOUND, ex.getLocalizedMessage(), error);
return new ResponseEntity<Object>(apiError, new HttpHeaders(), apiError.getStatus());
}
// 405
@Override
protected ResponseEntity<Object> handleHttpRequestMethodNotSupported(final HttpRequestMethodNotSupportedException ex, final HttpHeaders headers, final HttpStatus status, final WebRequest request) {
logger.info(ex.getClass().getName());
//
final StringBuilder builder = new StringBuilder();
builder.append(ex.getMethod());
builder.append(" method is not supported for this request. Supported methods are ");
ex.getSupportedMethods();
final ApiError apiError = new ApiError(HttpStatus.METHOD_NOT_ALLOWED, ex.getLocalizedMessage(), builder.toString());
return new ResponseEntity<Object>(apiError, new HttpHeaders(), apiError.getStatus());
}
// 415
@Override
protected ResponseEntity<Object> handleHttpMediaTypeNotSupported(final HttpMediaTypeNotSupportedException ex, final HttpHeaders headers, final HttpStatus status, final WebRequest request) {
logger.info(ex.getClass().getName());
//
final StringBuilder builder = new StringBuilder();
builder.append(ex.getContentType());
builder.append(" media type is not supported. Supported media types are ");
ex.getSupportedMediaTypes().forEach(t -> builder.append(t + ", "));
final ApiError apiError = new ApiError(HttpStatus.UNSUPPORTED_MEDIA_TYPE, ex.getLocalizedMessage(), builder.substring(0, builder.length() - 2));
return new ResponseEntity<Object>(apiError, new HttpHeaders(), apiError.getStatus());
}
// 500
@ExceptionHandler({ Exception.class })
public ResponseEntity<Object> handleAll(final Exception ex, final WebRequest request) {
logger.info(ex.getClass().getName());
//
final ApiError apiError = new ApiError(HttpStatus.INTERNAL_SERVER_ERROR, ex.getLocalizedMessage(), "error occurred");
return new ResponseEntity<Object>(apiError, new HttpHeaders(), apiError.getStatus());
}
}

10
spring-security-rest/src/main/java/org/baeldung/web/controller/FooController.java
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@ -9,11 +9,14 @@ import javax.servlet.http.HttpServletResponse;
import org.baeldung.persistence.model.Foo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationEventPublisher;
import org.springframework.http.HttpStatus;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.ResponseStatus;
import org.springframework.web.util.UriComponentsBuilder;
import com.google.common.collect.Lists;
@ -47,4 +50,11 @@ public class FooController {
return Lists.newArrayList(new Foo(randomAlphabetic(6)));
}
// write - just for test
@RequestMapping(method = RequestMethod.POST)
@ResponseStatus(HttpStatus.CREATED)
@ResponseBody
public Foo create(@RequestBody final Foo foo) {
return foo;
}
}

7
spring-security-rest/src/main/webapp/WEB-INF/web.xml
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@ -26,8 +26,11 @@
<!-- Spring child -->
<servlet>
<servlet-name>api</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>throwExceptionIfNoHandlerFound</param-name>
<param-value>true</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>api</servlet-name>

65
spring-security-rest/src/test/java/org/baeldung/web/FooLiveTest.java Normal file
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@ -0,0 +1,65 @@
package org.baeldung.web;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.http.HttpStatus;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.test.context.support.AnnotationConfigContextLoader;
import com.jayway.restassured.RestAssured;
import com.jayway.restassured.authentication.FormAuthConfig;
import com.jayway.restassured.response.Response;
import com.jayway.restassured.specification.RequestSpecification;
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes = { TestConfig.class }, loader = AnnotationConfigContextLoader.class)
public class FooLiveTest {
private static final String URL_PREFIX = "http://localhost:8080/spring-security-rest";
private FormAuthConfig formConfig = new FormAuthConfig(URL_PREFIX + "/login", "username", "password");
private RequestSpecification givenAuth() {
return RestAssured.given().auth().form("user", "userPass", formConfig);
}
@Test
public void whenMethodArgumentMismatch_thenBadRequest() {
final Response response = givenAuth().get(URL_PREFIX + "/api/foos/ccc");
final ApiError error = response.as(ApiError.class);
assertEquals(HttpStatus.BAD_REQUEST, error.getStatus());
assertEquals(1, error.getErrors().size());
assertTrue(error.getErrors().get(0).contains("should be of type"));
}
@Test
public void whenNoHandlerForHttpRequest_thenNotFound() {
final Response response = givenAuth().delete(URL_PREFIX + "/api/xx");
final ApiError error = response.as(ApiError.class);
assertEquals(HttpStatus.NOT_FOUND, error.getStatus());
assertEquals(1, error.getErrors().size());
assertTrue(error.getErrors().get(0).contains("No handler found"));
}
@Test
public void whenHttpRequestMethodNotSupported_thenMethodNotAllowed() {
final Response response = givenAuth().delete(URL_PREFIX + "/api/foos/1");
final ApiError error = response.as(ApiError.class);
assertEquals(HttpStatus.METHOD_NOT_ALLOWED, error.getStatus());
assertEquals(1, error.getErrors().size());
assertTrue(error.getErrors().get(0).contains("Supported methods are"));
}
@Test
public void whenSendInvalidHttpMediaType_thenUnsupportedMediaType() {
final Response response = givenAuth().body("").post(URL_PREFIX + "/api/foos");
final ApiError error = response.as(ApiError.class);
assertEquals(HttpStatus.UNSUPPORTED_MEDIA_TYPE, error.getStatus());
assertEquals(1, error.getErrors().size());
assertTrue(error.getErrors().get(0).contains("media type is not supported"));
}
}

11
spring-security-rest/src/test/java/org/baeldung/web/TestConfig.java Normal file
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@ -0,0 +1,11 @@
package org.baeldung.web;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
@Configuration
@ComponentScan({ "org.baeldung.web" })
public class TestConfig {
}