MVVM 音乐台 搜索数据解析

测试代码 请勿商用

定义数据读取service 的接口

using System;
using System.Linq;

namespace SimpleMvvmWpf1
{
    public interface ICustomerServiceAgent
    {
        
        void GetSearch(SearchType searchType, string keyword, Action<string, string, Exception> callBack);
    }
}

实现接口

using System;
using System.Linq;
using System.Net;
using System.IO;
using System.Text;
using HtmlAgilityPack;

namespace SimpleMvvmWpf1
{
    public class MockCustomerServiceAgent : ICustomerServiceAgent
    {
       

        public void GetSearch(SearchType searchType, string keyword, Action<string,string,Exception> callBack)
        {

            try
            {
                WebClient client = new WebClient();
                client.Encoding = Encoding.UTF8;
                client.DownloadStringCompleted += (s, e) =>
                {
                    HtmlDocument doc = new HtmlDocument();
                    doc.LoadHtml(e.Result);
                    if (searchType == SearchType.mv)
                    {
                        foreach (HtmlNode link in doc.DocumentNode.SelectNodes("/html[1]/body[1]/div[7]/div[1]/div[3]/div[2]/div[2]/ul"))
                        {

                            foreach (HtmlNode node in link.SelectNodes("/html[1]/body[1]/div[7]/div[1]/div[3]/div[2]/div[2]/ul[1]/li"))
                            {

                            }
                        }
                        callBack("mv", "", null);
                    }
                    else
                    {
                        foreach (HtmlNode link in doc.DocumentNode.SelectNodes("/html[1]/body[1]/div[7]/div[1]/div[3]/div[2]/div[2]/ul"))
                        {

                            foreach (HtmlNode node in link.SelectNodes("/html[1]/body[1]/div[7]/div[1]/div[3]/div[2]/div[2]/ul[1]/li"))
                            {

                            }
                        }

                        callBack("", "artist", null);
                    }


                };
                client.DownloadStringAsync(new Uri(string.Format("http://www.yinyuetai.com/search?searchType={0}&keyword={1}", searchType, keyword)));

            }
            catch (WebException e)
            {
                callBack("", "", e);
            }
            catch (Exception e)
            {
                callBack("", "", e);
            } 
        }


    }
}

ViewModel中调用

 serviceAgent.GetSearch(SearchType.artist, "谢", (result,list, error) =>
            {
             //返回数据 判断
            if(error==null)
　　　　　　　　{
　　　　　　　　　　//通过SearchType 判断 使用哪个数据
　　　　　　　　}  　　
            });

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