crawler_httpclient代理访问

 public String getDocumentByProxy(String url)
             throws ClientProtocolException, IOException {
         DefaultHttpClient httpclient = new DefaultHttpClient();
         HttpHost proxy = new HttpHost("127.0.0.1", 8087);
         httpclient.getParams().setParameter(ConnRoutePNames.DEFAULT_PROXY,
                 proxy);
         HttpGet httpget = new HttpGet(IllegalCharacter(url));
         HttpResponse response = httpclient.execute(new HttpGet(url));
         String html;
         try {
             html = getContent(response, httpget.getURI().getHost());
         } finally {
             httpget.releaseConnection();
             // 释放连接
             httpclient.getConnectionManager().shutdown();
         }

         return html;
     }