HttpUrlConnection设置User-Agent

WebView webview;

webview = new WebView(this);  

webview.layout(0, 0, 0, 0);  

WebSettings settings = webview.getSettings(); 

String ua = settings.getUserAgentString();  //获取手机内部浏览器UA

注：必须放在activity中，否则会出现空指针异常

URL myUrl = new URL(searchURL);//参数是url

HttpURLConnection myConn = (HttpURLConnection)myUrl.openConnection();//打开连接

myConn.setRequestProperty("User-agent",ua);//为连接设置ua