C# XML与Json之间相互转换实例详解

对于这转换其实很简单，其中最重要的就是先要引用类库。可以到官网进行下载引用http://json.codeplex.com。

XML转换为Json字符串　

string xml = @"<?xml version=""1.0"" standalone=""no""?>
                            <root>
                              <person id=""1"">
                              <name>Alan</name>
                              <url>http://www.jb51.net</url>
                              </person>
                              <person id=""2"">
                              <name>Louis</name>
                              <url>http://www.jb51.net</url>
                              </person>
                            </root>";

这是在代码中预定义的一个xml字符串。

mlDocument doc = new XmlDocument();
            doc.LoadXml(xml);

然后将xml字符串读入到XML文档。

string jsonText = JsonConvert.SerializeXmlNode(doc);
            Console.WriteLine(jsonText);

然后通过Json.Net类库中专有的方法进行转换即可。

Json字符串转换为XML

第一种格式的Json字符串

string json = @"{
                              ""?xml"": {
                                ""@version"": ""1.0"",
                                ""@standalone"": ""no""
                              },
                              ""root"": {
                                ""person"": [
                                  {
                                    ""@id"": ""1"",
                                    ""name"": ""Alan"",
                                    ""url"": ""http://www.google.com""
                                  },
                                  {
                                    ""@id"": ""2"",
                                    ""name"": ""Louis"",
                                    ""url"": ""http://www.yahoo.com""
                                  }
                                ]
                              }
                            }";

预定义的Json字符串如上

同理调用Json.Net类库中的方法

 XmlDocument doc1 = JsonConvert.DeserializeXmlNode(json);
Console.WriteLine(doc1.OuterXml);

 第二种格式的Json字符串

string json_str = "{\"a\":\"a\",\"b\":\"b\"}";
            string json1 = @"{
              ""?xml"": {
                ""@version"": ""1.0"",
                ""@standalone"": ""no""
              },
                ""root"":" + json_str + "}";

同理进行调用

XmlDocument doc2 = JsonConvert.DeserializeXmlNode(json1);
Console.WriteLine(doc2.OuterXml);