springboot取消全局返回

Posted 2023-04-30

参考技术A 1.1 使用字符串返回
@GetMapping("/getUserName")
public String getUserName()
   return "HuaGe";

调用接口返回结果：
HuaGe
1.2 使用实体类返回
@GetMapping("/getUserName")
public User getUserName()
   return new User("HuaGe",18,"男");

调用接口返回结果：

 "name": "HuaGe",
 "age": "18",
 "性别": "男",

1.3 异常情况下返回
@GetMapping("/getUserName")
public static String getUserName()
   HashMap hashMap = Maps.newHashMap();
   return hashMap.get(0).toString();

Java SpringBoot全局错误处理类，返回标准结果

package demo.utils;

import com.alibaba.fastjson.JSON;
import demo.controller.ProductController;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;

/**
 * Controller全局错误捕获类
 */
@RestControllerAdvice  //拦截异常并统一处理
public class ExceptionIntercept {
    public static final String PLAT_ERROR = "PLAT_ERROR";
    // Logger和LogManager导入的是org.apache.logging包
    private static final Logger logger = LogManager.getLogger(ProductController.class);

    @ExceptionHandler(Exception.class)
    public MessagePack handler(Exception ex) {
        //返回错误数据包
        MessagePack pack = new MessagePack();
        pack.setCode(MessagePack.ERROR);
        pack.setMessage(ex.getMessage());
        pack.setStatus(PLAT_ERROR);
        //同时记录错误日志
        logger.error("Controller全局错误捕获类==>" + JSON.toJSONString(pack));
        return pack;
    }
}

package demo.utils;

import java.io.Serializable;

/**
 * 统一返回消息类
 */
public class MessagePack implements Serializable {
    public static final long OK = 0;

    public static final long ERROR = -1;

    // 状态码
    private long code;
    // 信息
    private String message;
    // 携带的值
    private Object object;
    // 状态信息
    private String status;

    public long getCode() {
        return code;
    }

    public void setCode(long code) {
        this.code = code;
    }

    public String getMessage() {
        return message;
    }

    public void setMessage(String message) {
        this.message = message;
    }

    public Object getObject() {
        return object;
    }

    public void setObject(Object object) {
        this.object = object;
    }

    public String getStatus() {
        return status;
    }

    public void setStatus(String status) {
        this.status = status;
    }
}