通过网络得到html，并解析出其中网址

 1 import java.io.BufferedReader;
 2 import java.io.InputStream;
 3 import java.io.InputStreamReader;
 4 import java.net.URL;
 5 import java.net.URLConnection;
 6 import java.util.ArrayList;
 7 import java.util.List;
 8 
 9 public class TestIndex {
10     
11     private String rootUrl = "http://localhost/apk/";
12     private String listUrl = rootUrl + "test-index.htm";
13     private static List<String> imageUrlList = new ArrayList<String>();
14     public static void main(String args[]){
15         TestIndex ti = new TestIndex();
16         ti.getData();
17         System.out.println(imageUrlList.size());
18         for(int i=0; i<imageUrlList.size();i++){
19             System.out.println(imageUrlList.get(i));
20         }
21         
22     }
23     
24     private InputStream getNetInputStream(String urlStr)
25     {
26         try
27         {
28             URL url = new URL(urlStr);
29             URLConnection conn = url.openConnection();
30             conn.connect();
31             InputStream is = conn.getInputStream();
32             return is;
33         }
34         catch (Exception e)
35         {
36 
37         }
38         return null;
39     }
40     private void getData() {
41         try
42         {
43             InputStream is = getNetInputStream(listUrl);
44             InputStreamReader isr = new InputStreamReader(is);
45             BufferedReader br = new BufferedReader(isr);
46             String s = null;
47             String html="";
48             while ((s = br.readLine()) != null)
49             {
50                 html+=s;
51             }
52             
53             is.close();
54             String startStr = "src=\"https://";
55             String endStr = " width=";
56             int start = 0;
57             int end = 0;
58             int index =0;
59             imageUrlList.clear();
60             while (true)
61             {
62                 start = html.indexOf(startStr, index);
63                 if (start < 0)
64                     break;
65                 index=start;
66                 end = html.indexOf(endStr, index);
67                 String ss = html.substring(start+5,end-1);
68                 imageUrlList.add(ss);
69                 index +=ss.length();
70             }
71         }
72         catch (Exception e)
73         {
74             // TODO: handle exception
75         }
76     }
77 }

20
https://encrypted-tbn3.gstatic.com/images?q=tbn:ANd9GcRvQgUjsVDBncM3mVIgIyIuE87BnlyJUy2BNsAp8kUoTanrC_css5mVAw
https://encrypted-tbn2.gstatic.com/images?q=tbn:ANd9GcThd8cYjOTmCgYJZxX5ls-xpxaAlH1_yocOSCqI5_7OkL29SNtbCZ7q2Yoj
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https://encrypted-tbn3.gstatic.com/images?q=tbn:ANd9GcQWbmiZJIXKHV2IoTBp7zSY6kD5g5VPzVtBTLJYYR5nwTtKi2-0_u93qL4e
https://encrypted-tbn1.gstatic.com/images?q=tbn:ANd9GcSlrLi_GtVgUehU7coFe1eMdrJxPdvS42iTqXkla0g75s31NBfAq2u1LE4
https://encrypted-tbn3.gstatic.com/images?q=tbn:ANd9GcSkrlyGxSs8Dr_7k3MUvoGq1vE45LgHZ0zEhIEdD9LLZiaoMcE7IAqn8ho
https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcTu__OUSJ4R4EKBu4jOi2ZAdHohpVQIBy3-SfnI8FYpN8wVC9kJG_aWuk_w
https://encrypted-tbn3.gstatic.com/images?q=tbn:ANd9GcR3Bf7YtsHJ813A5_wWzpxIy4MbEmqz5NLw3qv1nPxOZqVjH7QlY-qYSCg
https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcToB4nJPqVwnzn0xeasnXyhxGgOqHXdypE6KZIMTfV9k52eIrE3iYsA6Ixm
https://encrypted-tbn1.gstatic.com/images?q=tbn:ANd9GcTkKw0LpqdB2eQMUpwdQdvM9DTeNtq1mrvMNivoQtN37p3m0OPsx4ME9i4O
https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcSZGzMf_3hmdDktz91yp5ZQi-eGWLCenZ0U446sXT2nqYuwlWRI_V_BVIWi
https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcTQF-55T5GM3dLdaoafPdlIYK0ESNvM6-Bsb4-B2rQTeyD5gGoCKxokExM-
https://encrypted-tbn2.gstatic.com/images?q=tbn:ANd9GcRoRjo4TFeXmx47zE6VH0ylcO0IQ2HBsOHYIMJCI9MsRyg_PF1WhHbqG76Q
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