3、基本的Get和Post访问（含代理请求）

Get方式访问

HttpClient hc = new DefaultHttpClient();

HttpUriRequest request = new HttpGet("http://www.baidu.com?wd=HttpClient");

HttpResponse hr = hc.execute(request);

String body = EntityUtils.toString(hr.getEntity());

System.out.println(body);

Post方式访问

DefaultHttpClient hc = new DefaultHttpClient();
hc.setRedirectStrategy(new LaxRedirectStrategy());  //如果有跳转，就返回跳转后的内容

HttpPost hp = new HttpPost("http://www.baidu.com?wd=HttpClient");

List<NameValuePair> params = new ArrayList<NameValuePair>();
params.add(new BasicNameValuePair("username", "angelshelter"));
params.add(new BasicNameValuePair("keyword", "123"));

UrlEncodedFormEntity entity = new UrlEncodedFormEntity(params, "UTF-8");
hp.setEntity(entity);

HttpResponse hr = hc.execute(hp);

String body = EntityUtils.toString(hr.getEntity());

System.out.println(body);

Proxy代理访问。

public class Main {
    public static void main(String[] args) {
        List<Thread> list = new ArrayList<Thread>();
        for(int i=0;i<3;i++){
            Thread thread = new Thread(new Runnable(){
                @Override
                public void run() {
                    try{
                        HttpClient client = new DefaultHttpClient();

                        HttpPost post = new HttpPost("http://wxgd.online.atianqi.com:8010/wxgdol/getobjdetail");

                        //HttpHost proxy = new HttpHost("localhost", 8888);
                        //RequestConfig config = RequestConfig.custom().setProxy(proxy).build();
                        //post.setConfig(config);

                         //HttpHost proxy = new HttpHost("localhost", 8888);
                         //client.getParams().setParameter(ConnRouteParams.DEFAULT_PROXY, proxy);

                        //post.setHeader("Content-Type", "application/json;charset=UTF-8");
                        StringEntity entity = new StringEntity("{\"reqhead\":{\"servicecode\":\"OTTTV\",\"distributor\":\"SNM\",\"clienttype\":\"PC\",\"clientid\":\"JHSG7328f\",\"clientver\":\"1.0.1\",\"devicetype\":\"\",\"clientos\":\"andiod_4.3.1\"},\"reqbody\":{\"objectid\":\"news_1469974\",\"parentcode\":\"x_wx_yj_zy_bd_news\"}}", "utf-8");
                        post.setEntity(entity);

                        //使用代理

                        HttpResponse res = client.execute(post);
                        System.out.println("#" + EntityUtils.toString(res.getEntity()) + "#");
                    }catch(Exception e){
                        e.printStackTrace();
                    }
                }
            });
            list.add(thread);
        }
        for(Thread t : list){
            t.start();
        }
    }
}