继承了SimpleMappingExceptionResolver
贴上代码
/**
* 对controller异常进行全局处理
* 区分了对普通请求和ajax请求的异常处理，普通请求返回到配置的errorCode页面，或者返回到指定的页面
* @author
*
*/
public class CustomException extends SimpleMappingExceptionResolver {
private final transient Logger logger = LoggerFactory.getLogger(getClass()); @Override
protected ModelAndView doResolveException(HttpServletRequest request,
HttpServletResponse response, Object handler, Exception ex) {
String viewName = determineViewName(ex, request);
if (viewName != null) {// JSP格式返回
//增加普通提交返回到自己页面errorPage
String errorPage = String.valueOf(request.getAttribute("errorPage"));
//回到自己的页面
if(StringUtils.isNotBlank(errorPage)){
viewName = errorPage;
}
if (!(request.getHeader("accept").indexOf("application/json") > -1 || (request
.getHeader("X-Requested-With") != null && request
.getHeader("X-Requested-With").indexOf("XMLHttpRequest") > -1))) {
// 如果不是异步请求
// Apply HTTP status code for error views, if specified.
// Only apply it if we're processing a top-level request.
Integer statusCode = determineStatusCode(request, viewName);
if (statusCode != null) {
applyStatusCodeIfPossible(request, response, statusCode);
}
return getModelAndView(viewName, ex, request);
} else {// JSON格式返回
try {
Map<String, Object> jsonMap = new HashMap<String, Object>();
// 返回是错误
jsonMap.put(BaseController.AJAX_RESULT, false);
jsonMap.put(BaseController.RESULT_MESSAGE, ex.getMessage());
response.setContentType("text/html;charset=UTF-8");
PrintWriter writer = response.getWriter();
writer.write(JSON.toJSONString(jsonMap));
writer.close();
} catch (Exception e) {
logger.error("doResolveException", "系统异常！", e);
}
return null; }
} else {
return null;
}
}
}
spring.xml配置
<bean class="cn.tomcat.quickstart.exception.CustomException">
<!-- 定义默认的异常处理页面，当该异常类型的注册时使用 -->
<property name="defaultErrorView" value="error"></property>
<!-- 定义异常处理页面用来获取异常信息的变量名，默认名为exception -->
<property name="exceptionAttribute" value="ex"></property>
<!-- 定义需要特殊处理的异常，用类名或完全路径名作为key，异常也页名作为值 -->
<property name="exceptionMappings">
<props>
<prop key="IOException">error/ioexp</prop>
<prop key="java.sql.SQLException">error/sqlexp</prop>
</props>
</property>
</bean>