HttpClient的get请求

最新推荐文章于 2024-05-12 18:00:00 发布

原创最新推荐文章于 2024-05-12 18:00:00 发布 · 366 阅读

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本文详细介绍了使用HttpClient进行网络请求的过程，包括初始化HttpClient、构造HttpGet请求、执行请求并获取响应实体的方法，以及如何处理可能发生的异常情况。

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HttpClient的网络请求：

直接上代码：

<pre name="code" class="java">package com.matou.tradeerp.util;

import java.io.IOException;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.params.BasicHttpParams;
import org.apache.http.params.HttpConnectionParams;
import org.apache.http.params.HttpParams;



public class NetworkRequest {
	

	//网络解析公共类
	public static String getResult(String uri){
		String result = "-3";
		
		
		//返回的response
		HttpResponse response = null;
		// 定义HttpClient 
		HttpClient client = null;
		try {
			client = new DefaultHttpClient();
			HttpGet get = new HttpGet(uri);
			response = client.execute(get);

<span style="white-space:pre">			</span>//获得网络请求的实体
			HttpEntity entity = response.getEntity();
			//获取状态码
			HttpParams httpParams = new BasicHttpParams();
			//设置连接超时的事件
			HttpConnectionParams.setConnectionTimeout(httpParams, 5000);
			//返回的code码
//			response.getStatusLine().getStatusCode();
		} catch (ClientProtocolException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}finally{
			if(client!=null){
				//释放Client资源
				client = null;
			}
			if(response!=null){
				response = null;
			}
		}
		return result;
	}
}