package com.ml.web.action;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;

import org.apache.struts2.ServletActionContext;

import com.googlecode.jsonplugin.annotations.JSON;
import com.opensymphony.xwork2.ActionSupport;

public class Ext2UploadAction extends ActionSupport {
    /**
     * 
     */
    private static final long serialVersionUID = -8217750317798955984L;

    private File file1;  
    

    private String file1ContentType;   
    private String file1FileName;   
    
    private String savePath1;

    private boolean jsonString;
    
    @JSON(name="success")
    public boolean getJsonString() {
        return jsonString;
    }

    public void setJsonString(boolean jsonString) {
        this.jsonString = jsonString;
    }

    public File getFile1() {
        return file1;
    }

    public void setFile1(File file1) {
        this.file1 = file1;
    }


    public String getFile1ContentType() {
        return file1ContentType;
    }

    public void setFile1ContentType(String file1ContentType) {
        this.file1ContentType = file1ContentType;
    }

    public String getFile1FileName() {
        return file1FileName;
    }

    public void setFile1FileName(String file1FileName) {
        this.file1FileName = file1FileName;
    }

    public String getSavePath1() {
        return ServletActionContext.getRequest().getRealPath(savePath1);
    }

    public void setSavePath1(String savePath1) {
        this.savePath1 = savePath1;
    }
    
    public String execute()throws Exception{
        String fileName = getFile1FileName();
        try{
            if(!(new File(getSavePath1()).isDirectory()))
            {
                new File(getSavePath1()).mkdir();
            }
        }
        catch(SecurityException e)
        {
            this.LOG.debug(e.getMessage());
        }
        FileOutputStream fos = new FileOutputStream(getSavePath1() + "/" + fileName);
        FileInputStream fis = new FileInputStream(getFile1());
        byte[] buffer = new byte[1024];
        
        int len = 0;
        while((len = fis.read(buffer)) > 0){
            fos.write(buffer,0,len);
        }
        fis.close();
        fos.close(); 
        this.jsonString = true;;   
        
        return SUCCESS;
    
    }
}

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
    "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
    "http://struts.apache.org/dtds/struts-2.0.dtd">

<struts>
    <package name="ext2" extends="json-default" >
        <action name="ext2Upload" class="com.ml.web.action.Ext2UploadAction">
            <param name="savePath1">/upload</param> 
            <result name="success" type="json">
                <param name="excludeProperties">file1,file1ContentType,file1FileName,savePath1</param>
                   <param name="exportVars">success</param>
                   <param name="contentType">text/html</param>
            </result>
        </action>
    </package>
</struts>

    Ext.onReady( function (){   
        var form = new Ext.form.FormPanel({    
            labelAlign: 'right',    
            title: 'form',    
            labelWidth: 50,    
            frame:true,    
            fileUpload: true,    
            url:" ext2Upload.action",   
            width: 380,    
  
            items: [{    
                xtype: 'textfield',    
                fieldLabel: '文本框',    
                name: 'file1',    
                inputType: 'file'//文件类型    
            }],    
            buttons: [{    
                text: '保存',    
                handler: s   
            }]    
        });    
        function s() {   
            form.getForm().submit({//客户端的数据提交给服务器   
                waitTitle:"请稍候",   
                waitMsg:"正在提交表单数据，请稍候。。。。。。",    
                //如果submit失敗，執行這一個function      
                failure:function(){            
                    Ext.MessageBox.hide();    
                    Ext.MessageBox.alert('Error','失败');   
                },      
                success: function(){      
                    Ext.MessageBox.hide();      
                    Ext.MessageBox.alert('Success','成功');      
                 }                      
             });   
        }   
  
        form.render("fileUpload");     
           
    });

<%@page contentType="text/html" pageEncoding="UTF-8"%>   
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"  
   "http://www.w3.org/TR/html4/loose.dtd">   
<html>   
    <head>   
          <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 
        <link rel="stylesheet" type="text/css"
                href="ext/resources/css/ext-all.css" />
            
        <script type="text/javascript" src="ext/adapter/ext/ext-base.js"></script>
    
        <script type="text/javascript" src="ext/ext-all.js"></script>
        <script type="text/javascript" src="ext/ext-lang-zh_CN.js"></script>
        <script type="text/javascript" src="js/upload.js"></script>    
      </head>
  
  <body>
    <div id="fileUpload"></div>
  </body>
</html>