统一返回值以及自定义异常和异常处理

最新推荐文章于 2024-10-15 16:28:50 发布

原创最新推荐文章于 2024-10-15 16:28:50 发布 · 202 阅读

0 ·

CC 4.0 BY-SA版权

总结专栏收录该内容

43 篇文章

订阅专栏

本文介绍了如何使用Spring框架配合Axios库实现RESTful API的统一错误处理，包括成功和失败状态的封装，自定义状态枚举及异常处理器的应用。


import com.fasterxml.jackson.annotation.JsonInclude;

@JsonInclude(JsonInclude.Include.NON_NULL)
public class AxiosResult<T>{

    private int status;
    private String message;
    private T data;


    public int getStatus() {
        return status;
    }

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

    public String getMessage() {
        return message;
    }

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

    public T getData() {
        return data;
    }

    public void setData(T data) {
        this.data = data;
    }

    public AxiosResult(EnumStatus enumStatus, T data) {
        this.status = enumStatus.getStatus();
        this.message = enumStatus.getMessage();
        this.data = data;
    }

    private static  <T> AxiosResult<T> getAxiosResult(EnumStatus enumStatus, T data){
        return new AxiosResult<T>(enumStatus,data);
    }


    /**
     * 返回成功并携带数据
     */

    public static <T> AxiosResult<T> success(T data){
        return getAxiosResult(EnumStatus.OK,data);
    }


    /**
     * 返回失败并携带数据
     */

    public static <T> AxiosResult<T> error(T data){
        return getAxiosResult(EnumStatus.ERROR,data);
    }

    /**
     * 自定义其他状态
     */

    public static <T> AxiosResult<T> success(EnumStatus enumStatus,T data){
        return getAxiosResult(enumStatus,data);
    }

    public static <T> AxiosResult<T> error(EnumStatus enumStatus,T data){
        return getAxiosResult(enumStatus,data);
    }


}

public enum CustomEnum {
    OK(2000,"操作成功"),
    ERROR(4000,"操作失败"),
    USERNAME_ERROR(4004,"用户名错误"),
    PASSWORD_ERROR(4000,"密码错误"),
    NO_LOGIN(4002,"未登录"),
    ;

    private int Status;
    private String message;

    public int getStatus() {
        return Status;
    }

    public void setStatus(int status) {
        Status = status;
    }

    public String getMessage() {
        return message;
    }

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

    CustomEnum(int status, String message) {
        Status = status;
        this.message = message;
    }
}

import com.qy28.sm.http.CustomEnum;

public class MyException extends RuntimeException {

    private CustomEnum customEnum;

    public MyException(CustomEnum customEnum) {
        this.customEnum = customEnum;
    }

    public CustomEnum getCustomEnum() {
        return customEnum;
    }

    public void setCustomEnum(CustomEnum customEnum) {
        this.customEnum = customEnum;
    }
}

import com.qy28.sm.http.AjaxResult;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;

@RestControllerAdvice
public class MyExceptionHandler {

    @ExceptionHandler(MyException.class)
    public AjaxResult myHandler(MyException myexception){
        return AjaxResult.error(myexception.getCustomEnum());
    }
}