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package com.hmit.kernes.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 kernespring
* @email kernespring@gmail.com
* @date 2016年10月27日 下午10:16:19
*/
@Component
public class RRExceptionHandler implements HandlerExceptionResolver {
private Logger logger = LoggerFactory.getLogger(getClass());
@Override
public ModelAndView resolveException(HttpServletRequest request,
HttpServletResponse response, Object handler, Exception ex) {
R r = new R();
try {
response.setContentType("application/json;charset=utf-8");
response.setCharacterEncoding("utf-8");
if (ex instanceof RRException) {
r.put("code", ((RRException) ex).getCode());
r.put("msg", ((RRException) ex).getMessage());
}else if(ex instanceof DuplicateKeyException){
r = R.error("数据库中已存在该记录");
}else if(ex instanceof AuthorizationException){
r = R.error("没有权限，请联系管理员授权");
}else{
r = R.error();
}
//记录异常日志
logger.error(ex.getMessage(), ex);
String json = JSON.toJSONString(r);
response.getWriter().print(json);
} catch (Exception e) {
logger.error("RRExceptionHandler 异常处理失败", e);
}
return new ModelAndView();
}
}