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;
    }