org.apache.commons.httpclient 远程下载文件
package com.topcheer.img;import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.SimpleHttpConnectionManager;
import org.apache.commons.httpclient.methods.GetMethod;
/**
* Servlet implementation class ServletTest
*/
public class ServletTest extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#HttpServlet()
*/
public ServletTest() {
super();
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
this.doPost(request, response);
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
HttpClient client = new HttpClient();
GetMethod get = null;
try
{
// hasActive();
get = new GetMethod("http://172.16.104.78:8080/opticm-server/downloadImage?appId=kdkk&contentId=111111");
int i = client.executeMethod(get);
if (200 == i)
{
File storeFile = new File("d:/test.jpg");
FileOutputStream output = new FileOutputStream(storeFile);
// 得到网络资源的字节数组,并写入文件
output.write(get.getResponseBody());
output.close();
}else
{
System.out.println("no pic");
}
} catch ( Exception e )
{
System.out.println("no pic");
}finally{
get.releaseConnection();
client.getHttpConnectionManager().closeIdleConnections(0);
}
}
}
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