如何从Android中的HTML链接获取页面的HTML源？

Question

我正在开发一个需要从链接获取网页源，然后从该页面解析html的应用程序。您能给我一些例子，还是从哪里着手开始编写这样的应用程序？

Answer 1

您可以使用HttpClient执行HTTP GET并检索HTML响应，如下所示：

HttpClient client = new DefaultHttpClient();

HttpGet request = new HttpGet(url);

HttpResponse response = client.execute(request);

String html = "";

InputStream in = response.getEntity().getContent();

BufferedReader reader = new BufferedReader(new InputStreamReader(in));

StringBuilder str = new StringBuilder();

String line = null;

while((line = reader.readLine()) != null)

{

    str.append(line);

}

in.close();

html = str.toString();

Answer 2

这个问题有点老了，但是我认为现在已经弃用了，等等DefaultHttpClient，我应该发布我的答案HttpGet。给定URL，此函数应获取并返回HTML。

public static String getHtml(String url) throws IOException {

    // Build and set timeout values for the request.

    URLConnection connection = (new URL(url)).openConnection();

    connection.setConnectTimeout(5000);

    connection.setReadTimeout(5000);

    connection.connect();

    // Read and store the result line by line then return the entire string.

    InputStream in = connection.getInputStream();

    BufferedReader reader = new BufferedReader(new InputStreamReader(in));

    StringBuilder html = new StringBuilder();

    for (String line; (line = reader.readLine()) != null; ) {

        html.append(line);

    }

    in.close();

    return html.toString();

}