httpclient代码模板

所属分类：[JAVA] | 创建时间：2014-05-17 | 文章属性：原创 | 文章来源：http://windfly.cn | 作者：windfly

<pre class="java" name="code">
package cn.windfly.util;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.logging.Level;
import java.util.logging.Logger;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.params.CoreConnectionPNames;
import org.apache.http.util.EntityUtils;

public class HttpClientUtil {
	private static Logger logger = Logger.getLogger(HttpClientUtil.class.getName());
	
	
	public static String requestURLByGet(String url,Map<String, String> params) {
		HttpClient c = new DefaultHttpClient();
		
		String result = null;
		
		String param = "?";
		Iterator<Entry<String, String>> iterator = params.entrySet().iterator();
		while (iterator.hasNext()) {
			Entry<String, String> entry = iterator.next();
			param += "&"+entry.getKey()+"="+entry.getValue();
		}
		
		url += param;
		
		try {
			HttpGet hget = new HttpGet(url);
			hget.getParams().setParameter(CoreConnectionPNames.CONNECTION_TIMEOUT, 5000);
			hget.getParams().setParameter(CoreConnectionPNames.SO_TIMEOUT, 5000);
			HttpResponse response = c.execute(hget);
			HttpEntity entity = response.getEntity();
			result = EntityUtils.toString(entity);
		} catch (Exception e) {
			logger.log(Level.SEVERE,e.getMessage(),e);
		}finally{
			c.getConnectionManager().shutdown();
		}
		return result;
	}
	
	public static String requestURLByPost(String url,Map<String, String> params) {
		HttpClient c = new DefaultHttpClient();
		String result = null;
		
		List<BasicNameValuePair> list = new ArrayList<BasicNameValuePair>();
		Iterator<Entry<String, String>> iterator = params.entrySet().iterator();
		while (iterator.hasNext()) {
			Entry<String, String> entry = iterator.next();
			list.add(new BasicNameValuePair(entry.getKey(), entry.getValue()));
		}
		
		try {
			HttpPost hpost = new HttpPost(url);
			hpost.getParams().setParameter(CoreConnectionPNames.CONNECTION_TIMEOUT, 5000);
			hpost.getParams().setParameter(CoreConnectionPNames.SO_TIMEOUT, 5000);
			hpost.setEntity(new UrlEncodedFormEntity(list,"utf-8"));
			HttpResponse execute = c.execute(hpost);
			result = EntityUtils.toString(execute.getEntity());
		} catch (Exception e) {
			logger.log(Level.SEVERE,e.getMessage(),e);
		}finally{
			c.getConnectionManager().shutdown();
		}
		return result;
	}
	
}
</pre>