Restful Api 写法——统一返回值

记录Restful Api 自定义统一返回值方式！

以下为示例代码：

Code码Java类

package *.*.*;

import java.util.ArrayList;
import java.util.List;

    /**
     * API 统一返回状态码
     * Created by ws on 19/4/23.
     */
public enum ResultCode {

    /* 成功状态码 */
    SUCCESS(1, "成功"),

    /* 参数错误：10001-19999 */
    PARAM_IS_INVALID(10001, "参数无效"),
    PARAM_IS_BLANK(10002, "参数为空"),
    PARAM_TYPE_BIND_ERROR(10003, "参数类型错误"),
    PARAM_NOT_COMPLETE(10004, "参数缺失"),

    /* 用户错误：20001-29999*/
    USER_NOT_LOGGED_IN(20001, "用户未登录"),
    USER_LOGIN_ERROR(20002, "账号不存在或密码错误"),
    USER_ACCOUNT_FORBIDDEN(20003, "账号已被禁用"),
    USER_NOT_EXIST(20004, "用户不存在"),
    USER_HAS_EXISTED(20005, "用户已存在"),

    /* 业务错误：30001-39999 */
    SPECIFIED_QUESTIONED_USER_NOT_EXIST(30001, "某业务出现问题"),

    /* 系统错误：40001-49999 */
    SYSTEM_INNER_ERROR(40001, "系统繁忙，请稍后重试"),

    /* 数据错误：50001-599999 */
    RESULE_DATA_NONE(50001, "数据未找到"),
    DATA_IS_WRONG(50002, "数据有误"),
    DATA_ALREADY_EXISTED(50003, "数据已存在"),
    DATA_HAS_BEEN_DELETED(50004,"数据已被删除"),

    /* 接口错误：60001-69999 */
    INTERFACE_INNER_INVOKE_ERROR(60001, "内部系统接口调用异常"),
    INTERFACE_OUTTER_INVOKE_ERROR(60002, "外部系统接口调用异常"),
    INTERFACE_FORBID_VISIT(60003, "该接口禁止访问"),
    INTERFACE_ADDRESS_INVALID(60004, "接口地址无效"),
    INTERFACE_REQUEST_TIMEOUT(60005, "接口请求超时"),
    INTERFACE_EXCEED_LOAD(60006, "接口负载过高"),

    /* 权限错误：70001-79999 */
    PERMISSION_NO_ACCESS(70001, "无访问权限");

    private Integer code;

    private String message;

    ResultCode(Integer code, String message) {
        this.code = code;
        this.message = message;
    }

    public Integer code() {
        return this.code;
    }

    public String message() {
        return this.message;
    }

    public static String getMessage(String name) {
        for (ResultCode item : ResultCode.values()) {
            if (item.name().equals(name)) {
                return item.message;
            }
        }
        return name;
    }

    public static Integer getCode(String name) {
        for (ResultCode item : ResultCode.values()) {
            if (item.name().equals(name)) {
                return item.code;
            }
        }
        return null;
    }

    @Override
    public String toString() {
        return this.name();
    }

    //校验重复的code值
    public static void main(String[] args) {
        ResultCode[] ApiResultCodes = ResultCode.values();
        List codeList = new ArrayList<>();
        for (ResultCode ApiResultCode : ApiResultCodes) {
            if (codeList.contains(ApiResultCode.code)) {
                System.out.println(ApiResultCode.code);
            } else {
                codeList.add(ApiResultCode.code());
            }
        }
    }
}

 返回值Java类

package *.*.*;


import java.io.Serializable;

/**
 * API统一返回值类
 * Created by ws on 19/4/23.
 */
public class ResultMessage implements Serializable {

    private static final long serialVersionUID = 1L;

    private Integer code;

    private String msg;

    private Object data;

    public ResultMessage() {}

    public ResultMessage(Integer code, String msg) {
        this.code = code;
        this.msg = msg;
    }

    public static ResultMessage success() {
        ResultMessage result = new ResultMessage();
        result.setResultCode(ResultCode.SUCCESS);
        return result;
    }

    public static ResultMessage success(Object data) {
        ResultMessage result = new ResultMessage();
        result.setResultCode(ResultCode.SUCCESS);
        result.setData(data);
        return result;
    }

    public static ResultMessage failure(ResultCode resultCode) {
        ResultMessage result = new ResultMessage();
        result.setResultCode(resultCode);
        return result;
    }

    public static ResultMessage failure(ResultCode resultCode, Object data) {
        ResultMessage result = new ResultMessage();
        result.setResultCode(resultCode);
        result.setData(data);
        return result;
    }

    public void setResultCode(ResultCode code) {
        this.code = code.code();
        this.msg = code.message();
    }

    public Integer getCode() {
        return code;
    }

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

    public String getMsg() {
        return msg;
    }

    public void setMsg(String msg) {
        this.msg = msg;
    }

    public Object getData() {
        return data;
    }

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