Java 之返回對象

1、ResultCodeEnum.java

package com.vue.test.demo.entity;

/**
 * @author yangwj
 * @date 2020/3/22 16:59
 */
public enum ResultCodeEnum {
    SUCCESS(true,200,"成功"),
    UNKNOWN_ERROR(false,401,"未知參數"),
    PARAM_ERROR(false,402,"參數錯誤"),
    UPLOAD_FILE_ERROR(false,10000,"上傳文件失敗！")
    ;

    private Boolean success;
    private Integer code;
    private String message;

    public Boolean getSuccess() {
        return success;
    }

    public void setSuccess(Boolean success) {
        this.success = success;
    }

    public Integer getCode() {
        return code;
    }

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

    public String getMessage() {
        return message;
    }

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

    ResultCodeEnum(Boolean success, Integer code, String message) {
        this.success = success;
        this.code = code;
        this.message = message;
    }
}

2、Result.java

package com.vue.test.demo.entity;

/**
 * @author yangwj
 * @date 2020/3/22 17:18
 */
public class Result<T> {
    private Integer code;
    private String msg;
    private T data;

    public Result() {
        super();
    }

    public Result(Integer code, String msg, T data) {
        this.code = code;
        this.msg = msg;
        this.data = data;
    }

    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 T getData() {
        return data;
    }

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

    @Override
    public String toString() {
        return "Result{" +
                "code=" + code +
                ", msg='" + msg + '\'' +
                ", data=" + data +
                '}';
    }
}

3、返回工具類ResponseResult.java

package com.vue.test.demo.entity;

/**
 * @author yangwj
 * @date 2020/3/22 17:19
 */
public class ResponseResult {

    /**成功且帶數據**/
    public static Result success(Object object){
        Result result = new Result();
        result.setCode(ResultCodeEnum.SUCCESS.getCode());
        result.setMsg(ResultCodeEnum.SUCCESS.getMessage());
        result.setData(object);
        return result;
    }

    /**成功但不帶數據**/
    public static Result success(){

        return success(null);
    }
    /**失敗**/
    public static Result error(Integer code,String msg){
        Result result = new Result();
        result.setCode(code);
        result.setMsg(msg);
        return result;
    }
}