httpclient4配置带用户名和密码的代理
公司的网络需要代理，且需要用域、户名、密码。这种方式本人已验证通过。
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public static void main(String[] args) throws Exception {
??? ?DefaultHttpClient httpclient = new DefaultHttpClient();
??????? try {
??????? ?AuthScope authscope=new AuthScope(PROXY_HOST, PROXY_PORT);
??????? ?Credentials credentials=new NTCredentials(PROXY_USERNAME,PROXY_PASSWORD,PROXY_WORKSTATION,PROXY_DOMAIN);
??????????? httpclient.getCredentialsProvider().setCredentials(authscope,credentials);
??????????? HttpHost targetHost = new HttpHost(TARGET_HOST);
??????????? HttpHost proxy = new HttpHost(PROXY_HOST, PROXY_PORT);
??????????? httpclient.getParams().setParameter(ConnRoutePNames.DEFAULT_PROXY, proxy);
??????????? HttpGet httpget = new HttpGet(TARGET_GETURL);
???????????
??????????? System.out.println("executing request: " + httpget.getRequestLine());
??????????? System.out.println("via proxy: " + proxy);
??????????? System.out.println("to target: " + targetHost);
??????????? HttpResponse response = httpclient.execute(targetHost, httpget);
??????????? HttpEntity entity = response.getEntity();
??????????? System.out.println("----------------------------------------");
??????????? System.out.println(response.getStatusLine());
??????????? if (entity != null) {
??????????????? System.out.println("Response content length: " + entity.getContentLength());
??????????? }
??????????? EntityUtils.consume(entity);
??????? } finally {
??????????? httpclient.getConnectionManager().shutdown();
??????? }
??? }
