1.可以使用springmvc提供的HandlerExceptionResolver，来实现统一的异常处理。
package com.catchu.utils;
import com.alibaba.fastjson.JSON;
import org.apache.shiro.authz.AuthorizationException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.dao.DuplicateKeyException;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerExceptionResolver;
import org.springframework.web.servlet.ModelAndView;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* 异常处理器
* @author 刘俊重
* @email magichair522@gmail.com
*/
@Component
public class MagicExceptionHandler implements HandlerExceptionResolver {
private Logger logger = LoggerFactory.getLogger(getClass());
@Override
public ModelAndView resolveException(HttpServletRequest request,
HttpServletResponse response, Object handler, Exception ex) {
WebResult result = new WebResult();
try {
response.setContentType("application/json;charset=utf-8");
response.setCharacterEncoding("utf-8");
if (ex instanceof CatchUException) {
result.put("code", ((MagicException) ex).getCode());
result.put("msg", ((MagicException) ex).getMessage());
}else{
result = Out.error();
}
//记录异常日志
logger.error(ex.getMessage(), ex);
String json = JSON.toJSONString(result);
response.getWriter().print(json);
} catch (Exception e) {
logger.error("CatchUExceptionHandler 异常处理失败", e);
}
return new ModelAndView();
}
}
2.MagicException异常类定义如下：
package com.magic.lang;
/**
* @author 刘俊重
* @Description 自定义异常
*/
public class MagicException extends RuntimeException {
private String msg;
private int code;
public MagicException(String msg){
super(msg);
this.msg = msg;
}
public MagicException(String msg,Throwable e){
super(msg,e);
this.msg = msg;
}
public MagicException(String msg,int code){
super(msg);
this.msg = msg;
this.code = code;
}
public MagicException(String msg,int code,Throwable e){
super(msg,e);
this.msg = msg;
this.code = code;
}
public String getMsg() {
return msg;
}
public void setMsg(String msg) {
this.msg = msg;
}
public int getCode() {
return code;
}
public void setCode(int code) {
this.code = code;
}
}
