Springboot 接口返回JSON

新增JsonResult类

import lombok.Data;
import java.io.Serializable;

@Data
public class JsonResult implements Serializable {
    private static final long serialVersionUID = -1946193220290386110L;

    private int code;
    private String msg;
    private Object data;

    public JsonResult(int code, String msg, Object data){
        this.code = code;
        this.msg = msg;
        this.data = data;
    }

    public static JsonResult success(String msg){
        return new JsonResult(0, msg, null);
    }
    public static JsonResult success(String msg, Object... data){
        return new JsonResult(0, msg, data);
    }
    public static JsonResult success(String msg, Object data){
        return new JsonResult(0, msg, data);
    }
    public static JsonResult fail(String msg){
        return  new JsonResult(-1, msg, null);
    }
}

测试

@GetMapping("test")
public JsonResult test() {
     return JsonResult.success("获取成功", "data数据");
}