httpclient上传文件及传参数

原文地址：http://hyacinth.blog.sohu.com/187223085.html


httpclient上传文件及传参数
2011-10-12 14:25 阅读(2497)评论(0)
    用到的包有commons-httpclient-3.0.1.jar、commons-codec-1.3.jar

   

    客户端代码：

    import java.io.File;

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;
import org.apache.commons.httpclient.methods.multipart.FilePart;
import org.apache.commons.httpclient.methods.multipart.MultipartRequestEntity;
import org.apache.commons.httpclient.methods.multipart.Part;
import org.apache.commons.httpclient.methods.multipart.StringPart;




public class HttpClientDemo {
   
    public static void main(String arg[]){
           String targetURL = null;// TODO 指定URL
           File targetFile = null;// TODO 指定上传文件
         
           targetFile = new File("c:\\tzh.txt");
          
           targetURL = "http://localhost:8080/nel/uploadservice";
          
           PostMethod filePost = new PostMethod(targetURL);
         //  filePost.setRequestHeader("Content-type", "multipart/form-data");
           try
           {

            Part[] parts = {
                    new FilePart(targetFile.getName(), targetFile),
                    new StringPart( "filepath" , "/data/2011-08-08/"),
                    new StringPart( "machinename" , "machine1")
                    };
            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();
           }
    }

}

   

   

    服务器端代码：

   

    package cn.vlabs.nel.ui.uploadmanage;

import java.io.IOException;
import java.io.InputStream;
import java.util.Iterator;
import java.util.List;
import java.util.Map;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;

import cn.vlabs.app.common.tools.CommonTools;
import cn.vlabs.nel.service.clb.CLBFileStorage;
/**
* @author [e-mail]   
* 2011-10-11
*/
public class UploadServlet extends HttpServlet{

    private static final long serialVersionUID = 1L;

    @SuppressWarnings("unchecked")
    public void doPost(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException{
       try{
           DiskFileItemFactory factory = new DiskFileItemFactory();
           factory.setSizeThreshold(4096); // 缓冲区大小4kb
           ServletFileUpload upload = new ServletFileUpload(factory);
           upload.setSizeMax(419430400); // 最大文件尺寸是400MB
           List items = upload.parseRequest(request);// 得到所有的文件
           Iterator i = items.iterator();
           String[] restr = null;
           while (i.hasNext()){
              
               FileItem fi = (FileItem) i.next();
               if(fi.isFormField()){
                  
                   String strname = fi.getFieldName();
                   String value = fi.getString();
                   System.out.println(strname+"="+value);
                 
               }else{
                   String fileName = fi.getName();
                   InputStream in=fi.getInputStream();
                   CLBFileStorage clbFileStorage=(CLBFileStorage) CommonTools.getBeanFactory().getBean("clbFileStorage");
                   int rei= clbFileStorage.createFile(fileName, fi.getSize(), in);
                   System.out.println(rei);
               }
           }
           }
           catch (Exception e){
               System.out.println(e.getMessage());
               // 可以跳转出错页面
               e.printStackTrace();
           }
    }
}