为了方便对异常的统一管理 ， spring mvc提供了ControllerAdvice注解对异常进行统一的处理 ， 拿到这些异常信息后 ， 可以做一些处理 ， 比如提供一个统一的web界面查看异常信息 ， 或者普通到异常信息后 ， 发送短信、邮件形式通知到相关人员 ， 可以帮助开发人员快速发现并定位问题 ， 减少以往通过查看线上日志文件排查问繁琐锁耗时的所耗费的时间 。 下面我跟大家介绍具体步骤 。
配置spring 版本：
4.1.9.RELEASEspring-servlet.xml ， 注意必须开启注解 ， 即xml要有
异常统一处理类package org.as.asjee.core.exception;import java.sql.SQLException;import javax.servlet.http.HttpServletRequest;import org.as.asjee.core.log.AsJEELogger;import org.as.asjee.core.log.AsJEELoggerFactory;import org.springframework.web.bind.annotation.ControllerAdvice;import org.springframework.web.bind.annotation.ExceptionHandler;import org.springframework.web.bind.annotation.ResponseBody;import org.springframework.web.servlet.ModelAndView;/** * 捕获异常统一处理 * @description TODO * @author chen.gs * @create date 2016年4月28日 * @modified by* @modify date * @version v1.0 */@ControllerAdvicepublic class GlobalExceptionHandler {private final static AsJEELogger LOG = AsJEELoggerFactory.getLogger(GlobalExceptionHandler.class);private final static String EXPTION_MSG_KEY = "message";@ExceptionHandler(BusinessException.class)@ResponseBodypublic void handleBizExp(HttpServletRequest request, Exception ex){LOG.info("Business exception handler" + ex.getMessage() );request.getSession(true).setAttribute(EXPTION_MSG_KEY, ex.getMessage());}@ExceptionHandler(SQLException.class)public ModelAndView handSql(Exception ex){LOG.info("SQL Exception " + ex.getMessage());ModelAndView mv = new ModelAndView();mv.addObject("message", ex.getMessage());mv.setViewName("sql_error");return mv;}}自定义异常类BussinessException.javapackage org.as.asjee.core.exception;/** * 业务异常 * @description TODO * @author chen.gs * @create date 2016年4月28日 * @modified by* @modify date * @version v1.0 */public class BusinessException extends Exception{private static final long serialVersionUID = 1L;//业务类型private String bizType;//业务代码private int bizCode;//错误信息private String message;public BusinessException(String bizType, int bizCode, String message){super(message);this.bizType = bizType;this.bizCode = bizCode;this.message = message;}public BusinessException(String message){super(message);this.bizType = "";this.bizCode = -1;this.message = message;}public BusinessException(String bizType, String message){super(message);this.bizType = bizType;this.bizCode = -1;this.message = message;}public BusinessException(int bizCode, String message){super(message);this.bizType = "";this.bizCode = bizCode;this.message = message;}public String getBizType() {return bizType;}public void setBizType(String bizType) {this.bizType = bizType;}public int getBizCode() {return bizCode;}public void setBizCode(int bizCode) {this.bizCode = bizCode;}public String getMessage() {return message;}public void setMessage(String message) {this.message = message;}}controller【SpringBoot注解@ControllAdvice知多少】package org.as.asjee.core.security.web;import java.sql.SQLException;import javax.annotation.Resource;import org.as.asjee.core.exception.BusinessException;import org.as.asjee.core.security.model.User;import org.as.asjee.core.security.service.UserService;import org.as.asjee.core.service.ServiceFacade;import org.as.asjee.core.web.AbstractController;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;@Controller@RequestMapping("/security/user")public class UserControllerextends AbstractController{@Resourceprivate UserService userService;@Resourceprivate ServiceFacade serviceFacade;@RequestMapping("login")public String login() {return "login";}@RequestMapping("login2")public String login2() throws Exception {throw new SQLException("出错鸟 。。。。。。。。。 ");}@RequestMapping("login3")public String login3() throws Exception {throw new BusinessException("业务执行异常");}//此方法抛出的异常不是由GlobalExceptionHandler处理//而是在catch块处理@RequestMapping("login4")public String login4() {try {throw new BusinessException("业务执行异常");} catch (BusinessException e) {e.printStackTrace();}return "login";}}