C#教程之关于Newtonsoft.Json，LINQ to JSON的一个小de

nuget获取Newtonsoft.Json
github地址：Newtonsoft.Json

Copy

public static void Test1() { /* 文本格式如下 代码实现目的： 1、VR 对象中是否包含ProjectId 2、取ProjectId下的值 { "VR": { "ProjectId": { "txt_s": "工程项目的名称编号Id", "value": "01" }, "ProjectObject": { "ProjectTypeName": { "name": "12企业类别1", "txt_s": "企业类别名称" }, "txt_s": "企业类别对象" }, "ProjectTitle": { "txt_s": "工程项目的名称(Title信息)", "value": "01" }, "UserId": { "txt_s": "用户的Id", "value": "01" } } } */ var str = @"%7b+%22VR%22%3a+%7b%22ProjectId%22%3a+%7b%22txt_s%22%3a+%22%e5%b7%a5%e7%a8%8b%e9%a1%b9%e7%9b%ae%e7%9a%84%e5%90%8d%e7%a7%b0%e7%bc%96%e5%8f%b7Id%22%2c+%22value%22%3a+%2201%22+%7d%2c+%22ProjectObject%22%3a+%7b%22ProjectTypeName%22%3a+%7b%22name%22%3a+%2212%e4%bc%81%e4%b8%9a%e7%b1%bb%e5%88%ab1%22%2c+%22txt_s%22%3a+%22%e4%bc%81%e4%b8%9a%e7%b1%bb%e5%88%ab%e5%90%8d%e7%a7%b0%22+%7d%2c+%22txt_s%22%3a+%22%e4%bc%81%e4%b8%9a%e7%b1%bb%e5%88%ab%e5%af%b9%e8%b1%a1%22+%7d%2c+%22ProjectTitle%22%3a+%7b%22txt_s%22%3a+%22%e5%b7%a5%e7%a8%8b%e9%a1%b9%e7%9b%ae%e7%9a%84%e5%90%8d%e7%a7%b0(Title%e4%bf%a1%e6%81%af)%22%2c+%22value%22%3a+%2201%22+%7d%2c+%22UserId%22%3a+%7b%22txt_s%22%3a+%22%e7%94%a8%e6%88%b7%e7%9a%84Id%22%2c+%22value%22%3a+%2201%22+%7d+%7d%7d"; //上述文本是编码之后的，方便调试 str = HttpUtility.UrlDecode(str, Encoding.UTF8); var jobject = JObject.Parse(str); var projectId = jobject.SelectToken("VR.ProjectId"); //VR 对象中是否包含ProjectId if (!projectId.HasValues) { //不包含 } else { foreach (var temp in projectId.Children()) { if (temp.Path.EndsWith("txt_s")) { var a = temp.ToObject<string>(); //a 的值是 工程项目的名称编号Id } if (temp.Path.EndsWith("value")) { var a = temp.ToObject<string>(); //a 的值是 01 } } } }