layUI框架table.render发送请求，数据返回格式封装

1、状态码枚举类

package com.donleo.ssm.utils;

/**
 * @author liangd
 * date 2020-11-22 16:51
 * code
 */
public enum ResponseLayCode {
    //成功状态码
    SUCCESS(0),
    //空值状态码
    NULL(1);

    private int code;

    ResponseLayCode(int code) {
        this.code = code;
    }

    public int getCode() {
        return code;
    }

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

2、返回格式封装类

package com.donleo.ssm.utils;

/**
 * @author liangd
 * date 2020-11-22 16:41
 * code LayUI 返回格式数据工具类
 */
public class ResponseLayResult<T> {
    /**
     * 返回状态码
     */
    private int code;
    /**
     * 总条数
     */
    private long count;
    /**
     * 提示信息
     */
    private String msg;
    /**
     * 返回数据
     */
    private T data;

    /**
     * 有数据构造方法
     */
    private ResponseLayResult(int code, long count, T data) {
        this.code = code;
        this.count = count;
        this.data = data;
    }

    /**
     * 空值构造方法
     */
    private ResponseLayResult(int code, long count, String msg) {
        this.code = code;
        this.count = count;
        this.msg = msg;
    }

    /**
     * getter/setter 方法
     */
    public int getCode() {
        return code;
    }

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

    public long getCount() {
        return count;
    }

    public void setCount(long count) {
        this.count = count;
    }

    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;
    }

    /**
     * 返回有数据信息
     */
    public static <T> ResponseLayResult<T> createBySuccess(long count, T data) {
        return new ResponseLayResult<T>(ResponseLayCode.SUCCESS.getCode(), count, data);
    }

    /**
     * 返回空数据信息
     */
    public static <T> ResponseLayResult<T> createByNull(long count, String msg) {
        return new ResponseLayResult<T>(ResponseLayCode.NULL.getCode(), count, msg);
    }

    /**
     * 返回空数据信息（count为null）
     */
    public static <T> ResponseLayResult<T> createByNull(String msg) {
        return new ResponseLayResult<T>(ResponseLayCode.NULL.getCode(), ResponseLayCode.SUCCESS.getCode(), msg);
    }
}