HttpClient 发送HTTP请求

HttpClient 发送HTTP请求

需要Apache的三个包：

commons-httpclient-3.1.jar

commons-codec-1.9.jar

commons-logging.jar

没有自己在Apache官网下载，怎么导入就不多说了

代码如下：

import java.io.FileOutputStream;

import java.io.InputStream;

import org.apache.commons.httpclient.HttpClient;

import org.apache.commons.httpclient.HttpStatus;

import org.apache.commons.httpclient.NameValuePair;

import org.apache.commons.httpclient.methods.PostMethod;

public class MyTest {

/**

* HttpClient HTTP发送

*/

public static void main(String[] args) {

//定义发送状态

int statusCode = 0;

//定义响应接收流

InputStream in=null;

//

FileOutputStream fop = null;

//目标URL

String targetUrl = "http://localhost:8090/MyTest/index2.jsp";

try{

//定义HttpClient

HttpClient client = new HttpClient();

//Post模式提交

PostMethod method = new PostMethod(targetUrl);

//设置参数s

NameValuePair[] data = { new NameValuePair("name","leijianwei"),new NameValuePair("pwd","123456")};

//装入参数

method.setRequestBody(data);

//执行模式发送，并获取发送状态

statusCode = client.executeMethod(method);

//判断发送状态是否是200

if(statusCode == HttpStatus.SC_OK){

//获取服务端响应

in = method.getResponseBodyAsStream();

//fop =new FileOutputStream(new File(fileName));//存入文件

byte []binRead=new byte[1024];

int b = -1;

//循环读取流

while((b=in.read(binRead))!=-1){

//打印

String responseBody = new String(binRead,"utf-8");

System.out.println("打印出来吧："+responseBody.trim());

//存入文件

//fop.write(binRead,0,b);

}

}else{

}

}catch(Exception e){

e.printStackTrace();

}

}

}