自定义类库:接口交互时，可以返回统一结果信息

最新推荐文章于 2024-11-25 15:51:09 发布

转载最新推荐文章于 2024-11-25 15:51:09 发布 · 102 阅读

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原文链接：http://www.cnblogs.com/moy25/p/8610618.html

文章标签：

#后端 #java #前端 #ViewUI

本文介绍了一个用于前后端交互中统一处理结果信息的Java类——ResultBean。该类提供了成功、失败和错误三种状态的静态方法，并能携带相应的状态码、消息及数据。

一、项目上出现对接时、应该定义统一结果信息，例如前端调用后端接口时

package com.moy.site.test.bean;

import java.io.Serializable;

/**
 * Description:装载数据Bean<br/>
 * Date:2017/10/20 <br/>
 * Email:moy25@foxmail.com <br/>
 *
 * @author YeXiangYang
 */
public final class ResultBean<T> implements Serializable {

    private static final long serialVersionUID = 1L;

    public static final int SUCCESS_CODE = 200;
    public static final int FAIL_CODE = 404;
    public static final int ERROR_CODE = 500;

    public static final String SUCCESS = "success";
    public static final String FAIL = "fail";
    public static final String ERROR = "error";

    // 数据状态码
    private int code;
    // 数据附加信息
    private String message;
    // 数据
    private T data;

    private ResultBean() {
        super();
    }

    private ResultBean(int code, String message, T data) {
        super();
        this.code = code;
        this.message = message;
        this.data = data;
    }

    public static <E> ResultBean<E> success() {
        return success(ResultBean.SUCCESS, null);
    }

    public static <E> ResultBean<E> success(E data) {
        return success(ResultBean.SUCCESS, data);
    }

    public static <E> ResultBean<E> success(String message, E data) {
        return new ResultBean<>(ResultBean.SUCCESS_CODE, message, data);
    }

    public static <E> ResultBean<E> fail() {
        return fail(ResultBean.FAIL, null);
    }

    public static <E> ResultBean<E> fail(E data) {
        return fail(ResultBean.FAIL, data);
    }

    public static <E> ResultBean<E> fail(String message, E data) {
        return new ResultBean<>(ResultBean.FAIL_CODE, message, data);
    }

    public static <E> ResultBean<E> error() {
        return error(ResultBean.ERROR, null);
    }

    public static <E> ResultBean<E> error(E data) {
        return error(ResultBean.ERROR, data);
    }

    public static <E> ResultBean<E> error(String message, E data) {
        return new ResultBean<>(ResultBean.ERROR_CODE, message, data);
    }

    public boolean isSuccess() {
        return ResultBean.SUCCESS_CODE == this.getCode();
    }

    public int getCode() {
        return code;
    }

    public String getMessage() {
        return message;
    }

    public T getData() {
        return data;
    }

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

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

    @Override
    public String toString() {
        return "Result [code=" + code + ", message=" + message + ", data=" + data + "]";
    }

}