正则表达式获取Script中的Json字符串

Question

正则表达式获取Json字符串

<script type="text/javascript" src="/retail/retail-static/xx/scripts/ac-globalfooter.built.js"></script>
<script id="__NEXT_DATA__" type="application/json">
    {"props":{members:{
        "Name":"_test".
        "Age":30,
        "HeadUrl":"http://www.baidu.com"
    }},
    "a":"123",
    "b":"123",
    "c":"123"}
</script>
<script type="text/javascript" src="/retail/retail-static/xx/scripts/ac-globalfooter.js"></script>

我希望使用正则表达式获取<script id="__NEXT_DATA__" type="application/json"></script>中的json对象。我用的是C#。辛苦大家，麻烦大神了。

Answer 1

using System;
using System.Text.RegularExpressions;
namespace HelloWorldApplication
{
   class HelloWorld
   {
      static void Main(string[] args)
      {
         string input =  "<script type=\"text/javascript\" src=\"/retail/retail-static/xx/scripts/ac-globalfooter.built.js\"></script>" +
            "<script id=\"__NEXT_DATA__\" type=\"application/json\">" +
                "{\"props\":{members:{" +
                    "\"Name\":\"_test\"." +
                    "\"Age\":30," +
                    "\"HeadUrl\":\"http://www.baidu.com\""+
                "}}," +
                "\"a\":\"123\"," +
                "\"b\":\"123\"," +
                "\"c\":\"123\"}" +
            "</script>" +
            "<script type=\"text/javascript\" src=\"/retail/retail-static/xx/scripts/ac-globalfooter.js\"></script>";

          string pattern = "(?<=<script id=\"__NEXT_DATA__\" type=\"application/json\">).*?(?=</script>)";

          Regex reg = new Regex(pattern);
          Match match = reg.Match(input);
          string value = match.Groups[0].Value;
          Console.WriteLine("json为：{0}", value);
          Console.ReadKey();
      }
   }
}