httpClient入门到精通-------配置参数

package cn.itcast.httpclient;

import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;

public class RequestConfigDemo {

    public static void main(String[] args) throws Exception {

        // 创建Httpclient对象
        CloseableHttpClient httpclient = HttpClients.createDefault();

        // 创建http GET请求
        HttpGet httpGet = new HttpGet("http://manage.taotao.com/rest/content/query/list?categoryId=42&page=1&rows=1");

        // 构建请求配置信息
        RequestConfig config = RequestConfig.custom().setConnectTimeout(1000) // 创建连接的最长时间
                .setConnectionRequestTimeout(500) // 从连接池中获取到连接的最长时间
                .setSocketTimeout(10 * 1000) // 数据传输的最长时间
                .setStaleConnectionCheckEnabled(true) // 提交请求前测试连接是否可用
                .build();
        // 设置请求配置信息
        httpGet.setConfig(config);

        CloseableHttpResponse response = null;
        try {
            // 执行请求
            response = httpclient.execute(httpGet);
            // 判断返回状态是否为200
            if (response.getStatusLine().getStatusCode() == 200) {
                String content = EntityUtils.toString(response.getEntity(), "UTF-8");
                System.out.println(content);
            }
        } finally {
            if (response != null) {
                response.close();
            }
            httpclient.close();
        }

    }

}