第springboot框架的全局異常處理方案詳解@ExceptionHandler(UnauthorizedException.class)

publicMapString,Objectunauth(HttpServletRequestreq,HttpServletResponseres){

returnResultObject.newResultObj(ErrorCode.UNAUTH);

//未登錄異常

@ExceptionHandler(AuthorizationException.class)

publicMapString,Objectunlogin(HttpServletRequestreq,HttpServletResponseres){

returnResultObject.newResultObj(ErrorCode.NOTLOGIN);

//其它異常

@ExceptionHandler(Exception.class)

publicMapString,Objecterror(Exceptione,HttpServletRequestreq,HttpServletResponseres){

logger.error(e.getMessage());

e.printStackTrace();

returnResultObject.newResultObj(ErrorCode.SYSTEM);

}

2.聲明系統(tǒng)通用錯(cuò)誤處理類

*系統(tǒng)通用錯(cuò)誤處理類

publicclassErrorCode{

//返回碼

privateintcode=0;

//描述信息

privateStringerrmsg="SUCCESS";

//成功

publicstaticfinalErrorCodeSUCCESS=newErrorCode(0,"SUCCESS");

publicstaticfinalErrorCodePARAMS=newErrorCode(100000,"參數(shù)錯(cuò)誤");

publicstaticfinalErrorCodeSYSTEM=newErrorCode(100001,"系統(tǒng)錯(cuò)誤");

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

publicstaticfinalErrorCodeUNAUTH=newErrorCode(100003,"權(quán)限錯(cuò)誤");

publicstaticfinalErrorCodeNULLPOINTER=newErrorCode(100004,"空指針錯(cuò)誤");

publicstaticfinalErrorCodeIOEXCEPTION=newErrorCode(100005,"IO錯(cuò)誤");

publicstaticfinalErrorCodeUPLOAD_FAIL=newErrorCode(100006,"文件上傳失敗");

publicstaticfinalErrorCodeREPEAT=newErrorCode(100007,"數(shù)據(jù)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.聲明全局異常處理類中的結(jié)果返回類

importjava.util.HashMap;

importjava.util.Map;

importjavax.servlet.http.HttpServletResponse;

importcom.xxx.ErrorCode;//此處引用自己errorCode類所在的包路徑

importorg.json.JSONObject;

publicclassResultObject{

*輸出錯(cuò)誤信息

*@paramerrorCode

publicstaticMapString,ObjectnewResultObj(ErrorCodeerrorCode){

MapString,Objectobj=newHashMapString,Object

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

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

returnobj;

*輸出帶數(shù)據(jù)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;

*輸出帶數(shù)據(jù)的錯(cuò)誤信息

*@paramerrorCode

*@paramdata

publicstaticMapString,ObjectnewResultObj(ErrorCodeerrorCode,Objectdata){

MapString,Objectobj=newHashMapString,