{ commentId: "52013", userId: "981662180", userName: "222", body: "222", pictureURL: "", commentSource: "222", commentType: 2, contentId: "221111", mId: "123trst" } 转成JSON格式

这段数据已经是JavaScript对象格式了，你可以使用JSON.stringify()将其转换为JSON格式的字符串，示例代码如下：

const commentInfoObj = {
  commentId: "52013",
  userId: "981662180",
  userName: "222",
  body: "222",
  pictureURL: "",
  commentSource: "222",
  commentType: 2,
  contentId: "221111",
  mId: "123trst"
};

const commentInfoStr = JSON.stringify(commentInfoObj);

console.log(commentInfoStr);

输出结果为：

{"commentId":"52013","userId":"981662180","userName":"222","body":"222","pictureURL":"","commentSource":"222","commentType":2,"contentId":"221111","mId":"123trst"}

这样就将JavaScript对象转换为了JSON格式的字符串。

相关问题

"commentInfo":"{\"commentId\": \"52013\",\"userId\": \"981662180\",\"userName\": \"222\",\"body\": \"222\",\"pictureURL\": \"\",\"commentSource\": \"222\",\"commentType\": 2,\"contentId\": \"221111\",\"mId\": \"123trst\"}", 前端语言怎么转换

这段字符串看起来是JSON格式的数据，你可以使用JavaScript中的JSON.parse()方法将其转换为JavaScript对象，示例代码如下：

const commentInfoStr = "{\"commentId\": \"52013\",\"userId\": \"981662180\",\"userName\": \"222\",\"body\": \"222\",\"pictureURL\": \"\",\"commentSource\": \"222\",\"commentType\": 2,\"contentId\": \"221111\",\"mId\": \"123trst\"}";

const commentInfoObj = JSON.parse(commentInfoStr);

console.log(commentInfoObj);

输出结果为：

{
  commentId: "52013",
  userId: "981662180",
  userName: "222",
  body: "222",
  pictureURL: "",
  commentSource: "222",
  commentType: 2,
  contentId: "221111",
  mId: "123trst"
}

这样就将字符串转换为了JavaScript对象，你可以方便地访问和操作其中的属性值了。

{ "commentId": null, "commentUserId": null, "commentUserName": null, "commentContent": null, "commentPic": null, "commentSource": null, "commentType": null, "mId": null, "pId": null } 转成JSONString

以下是该JSON转成JSON字符串的示例代码（以Java为例）：

import com.alibaba.fastjson.JSONObject;

public class Main {
    public static void main(String[] args) {
        JSONObject jsonObject = new JSONObject();
        jsonObject.put("commentId", null);
        jsonObject.put("commentUserId", null);
        jsonObject.put("commentUserName", null);
        jsonObject.put("commentContent", null);
        jsonObject.put("commentPic", null);
        jsonObject.put("commentSource", null);
        jsonObject.put("commentType", null);
        jsonObject.put("mId", null);
        jsonObject.put("pId", null);
        
        String jsonString = jsonObject.toString();
        System.out.println(jsonString);
    }
}

输出结果为：

{"commentId":null,"commentUserId":null,"commentUserName":null,"commentContent":null,"commentPic":null,"commentSource":null,"commentType":null,"mId":null,"pId":null}