返回值自定义JSON工具类

同样JSonObject也同样适用

JSonObject

API实体类
public class ApiResult<T> {
    /**
     * 错误码，表示一种错误类型
     * 请求成功，状态码为200
     */
    private int code;

    /**
     * 对错误代码的详细解释
     */
    private String message;

    /**
     * 返回的结果包装在value中，value可以是单个对象
     */
    private T data;

    public ApiResult() {
    }

    public ApiResult(int code, String message, T data) {
        this.code = code;
        this.message = message;
        this.data = data;
    }

    public int getCode() {
        return code;
    }

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

    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;
    }
}

APIUTIL

public class ApiResultHandler {

    public static ApiResult success(Object object) {
        ApiResult apiResult = new ApiResult();
        apiResult.setData(object);
        apiResult.setCode(200);
        apiResult.setMessage("请求成功");
        return apiResult;
    }

    public static ApiResult success() {
        return success(null);
    }

    public static <T> ApiResult buildApiResult(Integer code, String message, T data) {
        ApiResult apiResult = new ApiResult();


        apiResult.setCode(code);
        apiResult.setMessage(message);
        apiResult.setData(data);
        return apiResult;
    }
}

Controller调用层：返回一个分页数据

    @RequestMapping("tes
    tPage")
    public ApiResult testPage( Integer page, Integer size){

        Page<JudgeQuestion> testpage =new Page<>(page,size);
        IPage<JudgeQuestion> iPage =testImpService.findJudge(testpage);
        return ApiResultHandler.buildApiResult(200,"分页查询成功",iPage);

    }