#set( $symbol_pound = '#' )
#set( $symbol_dollar = '$' )
#set( $symbol_escape = '\' )
/*******************************************************************************
* Copyright (c) 2005, 2014 springside.github.io
*
* Licensed under the Apache License, Version 2.0 (the "License");
*******************************************************************************/
package ${package}.rest;
import java.util.Map;
import javax.validation.ConstraintViolationException;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
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.servlet.mvc.method.annotation.ResponseEntityExceptionHandler;
import org.springside.modules.beanvalidator.BeanValidators;
import org.springside.modules.mapper.JsonMapper;
import org.springside.modules.web.MediaTypes;
/**
* 自定义ExceptionHandler,专门处理Restful异常.
*
* @author calvin
*/
// 会被Spring-MVC自动扫描,但又不属于Controller的annotation。
@ControllerAdvice
public class RestExceptionHandler extends ResponseEntityExceptionHandler {
private JsonMapper jsonMapper = new JsonMapper();
/**
* 处理RestException.
*/
@ExceptionHandler(value = { RestException.class })
public final ResponseEntity<?> handleException(RestException ex, WebRequest request) {
HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.parseMediaType(MediaTypes.TEXT_PLAIN_UTF_8));
return handleExceptionInternal(ex, ex.getMessage(), headers, ex.status, request);
}
/**
* 处理JSR311 Validation异常.
*/
@ExceptionHandler(value = { ConstraintViolationException.class })
public final ResponseEntity<?> handleException(ConstraintViolationException ex, WebRequest request) {
Map<String, String> errors = BeanValidators.extractPropertyAndMessage(ex.getConstraintViolations());
String body = jsonMapper.toJson(errors);
HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.parseMediaType(MediaTypes.TEXT_PLAIN_UTF_8));
return handleExceptionInternal(ex, body, headers, HttpStatus.BAD_REQUEST, request);
}
}