利用HttpClient进行http文件上传详解编程语言

应用程序部分：

注意：要载入commons-httpclient-3.1.jar commons-codec.jar commons-logging.jar这三个包

import java.io.File; 
  
import org.apache.commons.httpclient.HttpClient; 
import org.apache.commons.httpclient.HttpStatus; 
import org.apache.commons.httpclient.methods.PostMethod; 
import org.apache.commons.httpclient.methods.multipart.FilePart; 
import org.apache.commons.httpclient.methods.multipart.MultipartRequestEntity; 
import org.apache.commons.httpclient.methods.multipart.Part; 
  
public class Hclient 
{ 
public static void main(String args[]) 
{ 
   String targetURL = null;// TODO 指定URL 
   File targetFile = null;// TODO 指定上传文件 
    
   targetFile = new File("1.mp3"); 
   targetURL = "http://localhost:8080/test/tt"; //servleturl 
   PostMethod filePost = new PostMethod(targetURL); 
    
   try 
   { 
  
    //通过以下方法可以模拟页面参数提交 
    //filePost.setParameter("name", "中文"); 
    //filePost.setParameter("pass", "1234"); 
  
   Part[] parts = { new FilePart(targetFile.getName(), targetFile) }; 
    filePost.setRequestEntity(new MultipartRequestEntity(parts,filePost.getParams())); 
    HttpClient client = new HttpClient(); 
    client.getHttpConnectionManager().getParams().setConnectionTimeout(5000); 
    int status = client.executeMethod(filePost); 
    if (status == HttpStatus.SC_OK) 
    { 
     System.out.println("上传成功"); 
     // 上传成功 
    } 
    else 
    { 
     System.out.println("上传失败"); 
     // 上传失败 
    } 
   } 
   catch (Exception ex) 
   { 
    ex.printStackTrace(); 
   } 
   finally 
   { 
    filePost.releaseConnection(); 
   } 
} 
}