使用aop实现全局异常处理

public JsonResponse testRunOld() {
    try {
        exampleService.runTest();
        System.out.println("正常运行");
        return JsonResponse.newOk();
    }catch (DataNotCompleteException e) {
        logger.error("something error occured!");
        return JsonResponse.newError(ErrorMsgEnum.DATA_NO_COMPLETE);
    } catch (Exception e) {
        return JsonResponse.newError();
    }
 
}

@Controller
public class TestController {
 
    @Autowired
    private IExampleService exampleService;
 
    @RequestMapping("test/run/aop")
    public JsonResponse testRunAop() throws Exception {
        exampleService.runTest();
        System.out.println("正常运行");
        return JsonResponse.newOk();
    }
}

@Service
public class ExampleService implements IExampleService{
 
    @Override
    public void runTest() throws Exception {
 
        // do something
        System.out.println("run something");
        throw new CustomException(ErrorMsgEnum.DATA_NO_COMPLETE);
    }
 
}

//正常返回的枚举
SUCCESS(true, 2000,"正常返回", "操作成功"), 
 
    // 系统错误，50开头
    SYS_ERROR(false, 5000, "系统错误", "亲，系统出错了哦~"),
    PARAM_INVILAD(false, 5001, "参数出现异常", "参数出现异常"), 
    DATA_NO_COMPLETE(false, 5002, "数据填写不完整，请检查", "数据填写不完整，请检查");
 
    private ErrorMsgEnum(boolean ok, int code, String msg ,String userMsg) {
        this.ok = ok;
        this.code = code;
        this.msg = msg;
        this.userMsg = userMsg;
    }
 
    private boolean ok;
    private int code;
    private String msg;
    private String userMsg;
}

public class JsonResponse{
 
    String msg;
    Object data;
 
    public JsonResponse() {
        msg = "";
        data = null;
    }
 
    public static JsonResponse newOk() {
        JsonResponse response = new JsonResponse();
        response.setState(State.newOk());
        return response;
    }
 
    public static JsonResponse newOk(Object data) {
        JsonResponse response = new JsonResponse();
        response.setData(data);
        response.setState(State.newOk());
        return response;
    }
 
    public static JsonResponse newError() {
        JsonResponse response = new JsonResponse();
        response.setMsg("无情的系统异常!");
        return response;
    }
 
    public static JsonResponse newError(ErrorMsgEnum errorMsgEnum) {
        JsonResponse response = new JsonResponse();
        state.setMsg(errorMsgEnum.getErrorMsg());
        return response;
    }
}

public class CustomException extends Exception { 
    private ErrorMsgEnum errorMsgEnum;
 
    public CustomException(ErrorMsgEnum errorMsgEnum) {
        this.errorMsgEnum = errorMsgEnum;
    }
}

@Around("execution(public * com.jason.*.controller..*.*(..))")
public JsonResponse serviceAOP(ProceedingJoinPoint pjp) throws Exception {
 
    JsonResponse newResultVo = null;
 
    try {
        return (JsonResponse) pjp.proceed();
    } catch (CustomException e) {
        logger.info("自定义业务异常:" + e.getMessage());
        ErrorMsgEnum errorMsgEnum = e.getErrorMsgEnum();
        if (Objects.nonNull(errorMsgEnum)) {
            newResultVo = JsonResponse.newError(errorMsgEnum);
        } else {
            newResultVo = JsonResponse.newError(e.getMessage());    
        }
    } catch (Exception e) {
        //可以顺便处理你的日志，此处能取到方法名，参数等等
        logger.error("出现运行时异常：", e);
        newResultVo = JsonResponse.newError();
    }
 
    return newResultVo;
 
}