httpclient的简单使用

代码是网上找的，然后自己写了一遍，感觉挺快的，现在贴出来

package httpclient;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;

import org.apache.commons.io.IOUtils;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.ParseException;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.params.ClientPNames;
import org.apache.http.conn.ClientConnectionManagerFactory;
import org.apache.http.entity.ByteArrayEntity;
import org.apache.http.entity.ContentType;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.impl.conn.PoolingClientConnectionManager;
import org.apache.http.params.BasicHttpParams;
import org.apache.http.params.CoreConnectionPNames;
import org.apache.http.params.HttpParams;
import org.apache.http.util.EntityUtils;

/**
 * 
 * <P>对httpclient-4.2.3.jar的简单使用</P>
 * @ClassName: HttpClientTest
 * @author 冯浩  2017年1月22日 下午2:48:43
 * @see TODO
 */
public class HttpClientTest {
    
    @org.junit.Test
    public void Test() throws IOException{
        long start=System.currentTimeMillis();
        HttpParams params=new BasicHttpParams();
        Integer CONNECTION_TIMEOUT=2*1000;//请求超时-
        Integer SO_TIMEOUT=2*1000;//等待数据超时
        long CONN_MANAGER_TIMEOUT=500L;//连接不够时，等待超时时间
        params.setIntParameter(CoreConnectionPNames.CONNECTION_TIMEOUT, CONNECTION_TIMEOUT);
        params.setIntParameter(CoreConnectionPNames.SO_TIMEOUT, SO_TIMEOUT);
        params.setLongParameter(ClientPNames.CONN_MANAGER_TIMEOUT, CONN_MANAGER_TIMEOUT);
        //提交之前进行连接测试
        params.setBooleanParameter(CoreConnectionPNames.STALE_CONNECTION_CHECK, true);
        
        PoolingClientConnectionManager manager=new PoolingClientConnectionManager();
        manager.setMaxTotal(200);//连接池的最大连接数-pool的大小
        manager.setDefaultMaxPerRoute(manager.getMaxTotal());//根据链接到的主机对池子大小进行细分
        HttpClient client=new DefaultHttpClient(manager,params);
        
        String url="http://******:8080/com.*************/****/*****";
        HttpPost post=new HttpPost(url);
        HttpResponse response=null;
        InputStream is=new FileInputStream(new File("D:/axtmp/20160815_120436-491.xml"));
        
        HttpEntity en=new ByteArrayEntity(IOUtils.toByteArray(is),ContentType.TEXT_XML);
        post.setEntity(en);
        try {
             response = client.execute(post);
        } catch (ClientProtocolException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        HttpEntity entity = response.getEntity();
        try {
            String result = EntityUtils.toString(entity, "utf-8");
            long end=System.currentTimeMillis();
            System.out.println("
result is "+result);
            System.out.println("
process is "+(end-start)+" mills");
        } catch (ParseException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

}