Android下实现wap和net自适应【转】
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package com.aoran.util;
import java.net.HttpURLConnection;
import java.net.InetSocketAddress;
import java.net.URL;
/**
* @author riddlezhang 下载器
*/
public class DownloadUtil {
private static final String TAG = "Downloader";
/**
* @return InputStream 下载
*/
public static HttpURLConnection download(String url) {
HttpURLConnection conn = null;
try {
String proxyHost = android.net.Proxy.getDefaultHost();
if (proxyHost != null) {//如果是wap方式,要加网关
java.net.Proxy p = new java.net.Proxy(java.net.Proxy.Type.HTTP, new InetSocketAddress(
android.net.Proxy.getDefaultHost(), android.net.Proxy.getDefaultPort()));
conn = (HttpURLConnection) new URL(url).openConnection(p);
} else {
conn = (HttpURLConnection) new URL(url).openConnection();
}
// conn.setReadTimeout(5000);
conn.setConnectTimeout(10000);
conn.setRequestMethod("GET");
conn.setRequestProperty(
"Accept",
"image/gif, image/jpeg, image/pjpeg, image/pjpeg, application/x-shockwave-flash, application/xaml+xml, application/vnd.ms-xpsdocument, application/x-ms-xbap, application/x-ms-application, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, */*");
conn.setRequestProperty("Accept-Language", "zh-CN");
conn.setRequestProperty("Referer", url);
conn.setRequestProperty("Charset", "UTF-8");
conn.setRequestProperty(
"User-Agent",
"Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.2; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)");
conn.setRequestProperty("Connection", "Keep-Alive");
conn.connect();
if (conn.getResponseCode() == HttpURLConnection.HTTP_OK) {
return conn;
}
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
}
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