在使用java的net包訪問網絡時,若是須要使用代理,能夠這樣作:java
System.getProperties().setProperty("proxySet", "true"); System.getProperties().setProperty("http.proxyHost", "183.121.23.188"); System.getProperties().setProperty("http.proxyPort", "8080"); URL url = new URL(http://www.163.com); HttpURLConnection httpConn = (HttpURLConnection)url.openConnection(); HttpURLConnection.setFollowRedirects(true); httpConn.setRequestMethod("GET"); httpConn.setRequestProperty("User-Agent","Mozilla/4.0 (compatible; MSIE 6.0; Windows 2000)"); InputStream in = httpConn.getInputStream(); BufferedReader myBufferedReader=new BufferedReader(new InputStreamReader(in)); String myString=null; while((myString=myBufferedReader.readLine())!=null){ System.out.println(myString); }
其中,前三行就是設置代理的語句。網絡