答复: ext2.0如何做文件上传？

                     Extjs+struts实现文件上传
1.fileUpload.js

  Ext.onReady(function(){ 
  
   var form = new Ext.form.FormPanel({ 
      renderTo:'file',
      labelAlign: 'right', 
      title: '文件上传', 
      labelWidth: 60, 
      frame:true,
      url: '../upload.do?op=uploadFile',//fileUploadServlet 
      width: 300, 
      height:200,
      fileUpload: true,
    

      items: [{ 
         xtype: 'textfield', 
         fieldLabel: '文件名', 
         name: 'file', 
         inputType: 'file'//文件类型 
       }], 
      
     buttons: [{ 
         text: '上传', 
         handler: function() { 
         form.getForm().submit({ 
         success: function(form, action){ 
            Ext.Msg.alert('信息', '文件上传成功！'); 
         }, 
        failure: function(){ 
           Ext.Msg.alert('错误', '文件上传失败'); 
        } 
      }); 
     } 
   }] 
   }); 

   }); 

2.uploadAction.java   其中使用了cos上传组件，下载地址：http://www.servlets.com/cos/cos-05Nov2002.zip

package zx.struts.actions;

import java.io.File;
import java.util.Enumeration;

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

import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;

import com.oreilly.servlet.MultipartRequest;


public class UploadAction extends DispatchAction{
	public ActionForward uploadFile(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response)throws Exception {

		
		String saveDirectory ="F:\\jboss-4.2.2.GA\\server\\default\\deploy\\userDemo.war\\upload";      //文件上传后，保存的位置

		int maxPostSize =3 * 5 * 1024 * 1024 ;   //每个文件最大5MB,最多3个文件,所以... 
      
		//response的编码为"gb2312"
		MultipartRequest multi = 
		       new MultipartRequest(request, saveDirectory, maxPostSize, 
		                            "gb2312"); 

        //输出反馈信息 
		 Enumeration files = multi.getFileNames();  
		     while (files.hasMoreElements()) { 
		       
		       String name = (String)files.nextElement(); 
		       File f = multi.getFile(name); 
		       if(f!=null){ 
		         String fileName = multi.getFilesystemName(name); 
		         String lastFileName= saveDirectory+"\\" + fileName; 
		         System.out.println("上传的文件:"+lastFileName); 
		         

		       } 
		     } 

    
   return null;
}
}

评论

1 楼 henlliy 2008-11-03  

我也是这样 做的报错：兄弟们帮帮忙：
java.io.IOException: Corrupt form data: premature ending
at com.oreilly.servlet.multipart.MultipartParser.<init>(MultipartParser.java:205)
at com.oreilly.servlet.MultipartRequest.<init>(MultipartRequest.java:222)
at com.oreilly.servlet.MultipartRequest.<init>(MultipartRequest.java:173)
at cn.sh.ideal.struts.action.VersionAction.createVersion(VersionAction.java:68)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.struts.actions.DispatchAction.dispatchMethod(DispatchAction.java:270)
at org.apache.struts.actions.DispatchAction.execute(DispatchAction.java:187)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at cn.sh.ideal.listener.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:73)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at cn.sh.ideal.listener.PurviewFilter.doFilter(PurviewFilter.java:31)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Thread.java:619)