springboot框架的全局异常处理方案详解

第springboot框架的全局异常处理方案详解@ExceptionHandler(UnauthorizedException.class)

publicMapString,Objectunauth(HttpServletRequestreq,HttpServletResponseres){

returnResultObject.newResultObj(ErrorCode.UNAUTH);

//未登录异常

@ExceptionHandler(AuthorizationException.class)

publicMapString,Objectunlogin(HttpServletRequestreq,HttpServletResponseres){

returnResultObject.newResultObj(ErrorCode.NOTLOGIN);

//其它异常

@ExceptionHandler(Exception.class)

publicMapString,Objecterror(Exceptione,HttpServletRequestreq,HttpServletResponseres){

logger.error(e.getMessage());

e.printStackTrace();

returnResultObject.newResultObj(ErrorCode.SYSTEM);

}

2.声明系统通用错误处理类

*系统通用错误处理类

publicclassErrorCode{

//返回码

privateintcode=0;

//描述信息

privateStringerrmsg="SUCCESS";

//成功

publicstaticfinalErrorCodeSUCCESS=newErrorCode(0,"SUCCESS");

publicstaticfinalErrorCodePARAMS=newErrorCode(100000,"参数错误");

publicstaticfinalErrorCodeSYSTEM=newErrorCode(100001,"系统错误");

publicstaticfinalErrorCodeUNLOGIN=newErrorCode(100002,"未登录");

publicstaticfinalErrorCodeUNAUTH=newErrorCode(100003,"权限错误");

publicstaticfinalErrorCodeNULLPOINTER=newErrorCode(100004,"空指针错误");

publicstaticfinalErrorCodeIOEXCEPTION=newErrorCode(100005,"IO错误");

publicstaticfinalErrorCodeUPLOAD_FAIL=newErrorCode(100006,"文件上传失败");

publicstaticfinalErrorCodeREPEAT=newErrorCode(100007,"数据已存在");

publicErrorCode(){}

@Override

publicStringtoString(){

returnString.format("{\"errmsg\":\"%s\",\"code\":%d}",errmsg,code);

publicintgetCode(){

returncode;

publicErrorCodesetCode(intcode){

this.code=code;

returnthis;

publicStringgetErrmsg(){

returnerrmsg;

publicErrorCodesetErrmsg(Stringerrmsg){

this.errmsg=errmsg;

returnthis;

publicErrorCode(intcode,Stringerrmsg){

this.code=code;

this.errmsg=errmsg;

}

3.声明全局异常处理类中的结果返回类

importjava.util.HashMap;

importjava.util.Map;

importjavax.servlet.http.HttpServletResponse;

importcom.xxx.ErrorCode;//此处引用自己errorCode类所在的包路径

importorg.json.JSONObject;

publicclassResultObject{

*输出错误信息

*@paramerrorCode

publicstaticMapString,ObjectnewResultObj(ErrorCodeerrorCode){

MapString,Objectobj=newHashMapString,Object

obj.put("code",errorCode.getCode());

obj.put("errmsg",errorCode.getErrmsg());

returnobj;

*输出带数据的成功信息

*@paramdata

publicstaticMapString,ObjectnewResultObj(Objectdata){

MapString,Objectobj=newHashMapString,Object

obj.put("code",ErrorCode.SUCCESS.getCode());

obj.put("errmsg",ErrorCode.SUCCESS.getErrmsg());

if(null!=data){

obj.put("data",data);

returnobj;

*输出带数据的错误信息

*@paramerrorCode

*@paramdata

publicstaticMapString,ObjectnewResultObj(ErrorCodeerrorCode,Objectdata){

MapString,Objectobj=newHashMapString,