springboot + 全局统一拦截处理异常、统一返回

编写一个Advice继承自ResponseBodyAdvice,

加上注解@ControllerAdvice(basePackages={"xxxx"})

具体的拦截以及返回统一处理，直接上代码——百度+自己编写：

处理了各种异常，以及统一返回的处理实现，排除了下载的流返回处理。

import com.alibaba.fastjson.JSON;
import com.liu.base.ResponseVo;
import com.liu.base.exceptions.CommonException;
import com.liu.constants.enums.ResponseState;
import lombok.extern.slf4j.Slf4j;
import org.apache.ibatis.exceptions.IbatisException;
import org.apache.shiro.ShiroException;
import org.springframework.context.support.DefaultMessageSourceResolvable;
import org.springframework.core.MethodParameter;
import org.springframework.core.NestedRuntimeException;
import org.springframework.core.io.Resource;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.server.ServerHttpRequest;
import org.springframework.http.server.ServerHttpResponse;
import org.springframework.ui.Model;
import org.springframework.validation.BindException;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.WebDataBinder;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.servlet.mvc.method.annotation.ResponseBodyAdvice;

import javax.servlet.http.HttpServletRequest;
import javax.validation.ConstraintViolation;
import javax.validation.ConstraintViolationException;
import java.sql.SQLException;
import java.util.stream.Collectors;

/**
  * 全局异常处理、controller返回格式统一处理
  * @author liuyong
  * @date 2020/12/24
  */
@SuppressWarnings({"unused"})
@Slf4j
@ControllerAdvice(basePackages = {"com.cetccloud"})
public class CustomControllerAdvice implements ResponseBodyAdvice