C#格式化json字符串的方法分析

发布时间：2020-12-15 06:04:39 所属栏目：百科来源：网络整理

导读：本篇章节讲解C#格式化json字符串的方法。供大家参考研究具体如下：将Json字符串转化成格式化表示的方法: 字符串反序列化为对象--对象再序列化为字符串使用Newtonsoft.Json提供的API，下载地址：http://www.newtonsoft.com/json 很多时候我们需要

本篇章节讲解C#格式化json字符串的方法。分享给大家供大家参考，具体如下：

将Json字符串转化成格式化表示的方法: 字符串反序列化为对象-->对象再序列化为字符串

使用Newtonsoft.Json提供的API，下载地址：http://www.newtonsoft.com/json

很多时候我们需要将json字符串以

{
  "status": 1,"sum": 9
}

这种方式显示，而从服务端取回来的时候往往是这样

{"status": 1,"sum": 9}

什么？无所谓？

如果数据很庞大的时候，比如这样

复制代码代码如下:

{"status":1,"totalcount":2,"list":[{"id":"2305b1e2-4e31-4fd3-8eb6-db57641914df","code":"8147056167227050270","title":"testing","type":"产品","status":"已处理","datetime":"2014-07-12T21:16:46","replycontent":"好的，只是测试"},{"id":"3a6546f6-49a7-4a17-b679-b3812b12b27e","code":"8147056167227050269","title":"我建议龙头有多种选配方式","status":"未处理","datetime":"2014-07-12T18:49:08.933","replycontent":""},{"id":"f735e461-ca72-4b44-8d7b-cd97ac09802f","code":"8147056167227050268","title":"这个产品不怎么好，不好用","datetime":"2014-07-12T15:06:19.1",{"id":"15926d9d-f469-4921-b01d-4b48ef8bd93d","code":"7141054273018032465","title":"jdjbcn","type":"服务","datetime":"2014-05-27T01:03:46.477",{"id":"1debf78f-42b3-4037-b71f-34075eed92bc","code":"4141051277003536211","title":"jdjbxn.x","datetime":"2014-05-27T00:53:21.18",{"id":"27593c52-b327-4557-8106-b9156df53909","code":"1143051276001357050","title":"ghggghh","datetime":"2014-05-27T00:35:05.933",{"id":"040198fc-b466-46c1-89d8-0514fbde9480","code":"4142053251166372433","title":"你好，你知道啦，我不喜欢白色浴缸","datetime":"2014-05-25T16:37:43.853",{"id":"16185418-d461-4e98-83c3-824eb7e344d6","code":"4145058213013197148","title":"hdjbchh","datetime":"2014-05-21T01:19:14.903",{"id":"6c043404-c1db-42e8-adeb-d4880fa7d1b5","code":"0142051185128085372","title":"ghhjdhd","datetime":"2014-05-18T12:08:37.997",{"id":"2dca1a38-a32b-4955-a99c-2ed7d6de60fa","code":"3146050186122030382","title":"hsibcn","datetime":"2014-05-18T12:03:38.913","replycontent":""}]}

如果没有格式化，将很难查看。。。

使用下面的方法，将结果格式化为这样

{
  "status": 1,"totalcount": 2,"list": [
    {
      "id": "2305b1e2-4e31-4fd3-8eb6-db57641914df","code": "8147056167227050270","title": "testing","type": "产品","status": "已处理","datetime": "2014-07-12T21:16:46","replycontent": "好的，只是测试"
    },{
      "id": "3a6546f6-49a7-4a17-b679-b3812b12b27e","code": "8147056167227050269","title": "我建议龙头有多种选配方式","status": "未处理","datetime": "2014-07-12T18:49:08.933","replycontent": ""
    },{
      "id": "f735e461-ca72-4b44-8d7b-cd97ac09802f","code": "8147056167227050268","title": "这个产品不怎么好，不好用","datetime": "2014-07-12T15:06:19.1",{
      "id": "15926d9d-f469-4921-b01d-4b48ef8bd93d","code": "7141054273018032465","title": "jdjbcn","type": "服务","datetime": "2014-05-27T01:03:46.477",{
      "id": "1debf78f-42b3-4037-b71f-34075eed92bc","code": "4141051277003536211","title": "jdjbxn.x","datetime": "2014-05-27T00:53:21.18",{
      "id": "27593c52-b327-4557-8106-b9156df53909","code": "1143051276001357050","title": "ghggghh","datetime": "2014-05-27T00:35:05.933",{
      "id": "040198fc-b466-46c1-89d8-0514fbde9480","code": "4142053251166372433","title": "你好，你知道啦，我不喜欢白色浴缸","datetime": "2014-05-25T16:37:43.853",{
      "id": "16185418-d461-4e98-83c3-824eb7e344d6","code": "4145058213013197148","title": "hdjbchh","datetime": "2014-05-21T01:19:14.903",{
      "id": "6c043404-c1db-42e8-adeb-d4880fa7d1b5","code": "0142051185128085372","title": "ghhjdhd","datetime": "2014-05-18T12:08:37.997",{
      "id": "2dca1a38-a32b-4955-a99c-2ed7d6de60fa","code": "3146050186122030382","title": "hsibcn","datetime": "2014-05-18T12:03:38.913","replycontent": ""
    }
  ]
}

实现代码如下：

private string ConvertJsonString(string str)
{
  //格式化json字符串
  JsonSerializer serializer = new JsonSerializer();
  TextReader tr = new StringReader(str);
  JsonTextReader jtr = new JsonTextReader(tr);
  object obj = serializer.Deserialize(jtr);
  if (obj != null)
  {
    StringWriter textWriter = new StringWriter();
    JsonTextWriter jsonWriter = new JsonTextWriter(textWriter)
    {
      Formatting = Formatting.Indented,Indentation = 4,IndentChar = ' '
    };
    serializer.Serialize(jsonWriter,obj);
    return textWriter.ToString();
  }
  else
  {
    return str;
  }
}

PS：关于json操作，这里再为大家推荐几款比较实用的json在线工具供大家参考使用：

在线JSON代码检验、检验、美化、格式化工具：
http://tools.aspzz.cn/code/json

JSON在线格式化工具：
http://tools.aspzz.cn/code/jsonformat

在线XML/JSON互相转换工具：
http://tools.aspzz.cn/code/xmljson

json代码在线格式化/美化/压缩/编辑/转换工具：
http://tools.aspzz.cn/code/jsoncodeformat

在线json压缩/转义工具：
http://tools.aspzz.cn/code/json_yasuo_trans

更多关于C#相关内容还可查看本站专题：《C#字符串操作技巧总结》、《C#常见控件用法教程》、《WinForm控件用法总结》、《C#程序设计之线程使用技巧总结》、《C#中XML文件操作技巧汇总》、《C#数据结构与算法教程》、《C#数组操作技巧总结》及《C#面向对象程序设计入门教程》

希望本文所述对大家C#程序设计有所帮助。

（编辑：李大同）

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