Ext 结合Cos 实现上传

在IE中,不能获得到action.result.success ,这个问题困扰了我5个小时. 不过还是再各位前辈的文章中找到了解决的方法
原来是Java端一直写的是response.getWriter().write("{success:true,message:'上传成功'}");   
后来看了一个朋友的代码才发现应该是response.getWriter().print("{success:true,msg:'成功'}");
哎..真是不应该啊!

Ext.BLANK_IMAGE_URL = 'js/extjs/resources/images/default/s.gif';
Ext.onReady(function(){
	var uploadform = new Ext.form.FormPanel({
		buttonAlign : 'center',
		labelAlign : 'right',
		labelWidth : 55,
		title : '文件上传',  
		frame : true,
		fileUpload : true, // 关键地方
		url : 'servlet/CosUploadServ',  
		method : 'POST',
		width : 380,
		items : [{
			xtype : 'textfield',
			fieldLabel : '文件路径',
			name : 'file',
			inputType : 'file' // 文件类型
		}],
		buttons : [{
			text : '上传',
			handler : 	function (){
				uploadform.getForm().submit({
					success :function(form , action)
					{
						if(action.result.success ==true)
						{
							Ext.Msg.alert("上传成功","文件上传成功");
						}
						else
						{
							Ext.Msg.alert("上传失败","文件上传失败");
						}
					},
					failure : function(form, action) {
						Ext.Msg.alert('上传失败', '上传文件失败！');
					}
				});
			}
		}]
	});
	uploadform.render(document.body);
});

package tt.account.serv;

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

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

import com.oreilly.servlet.MultipartRequest;

/**
 * Created on 2008-7-14
 * <p>Description: [描述该类概要功能介绍]</p>
 */
public class CosUploadServ extends HttpServlet
{

	/**
	 * Constructor of the object.
	 */
	public CosUploadServ()
	{
		super();
	}

	/**
	 * Destruction of the servlet. <br>
	 */
	public void destroy()
	{
		super.destroy(); // Just puts "destroy" string in log
		// Put your code here
	}

	public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
	{
		this.doPost(request, response);
	}

	public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
	{
		//文件上传后，保存在c:\\upload 
		String saveDirectory = "c:\\upload";
		//每个文件最大5m,最多3个文件,所以... 
		int maxPostSize = 3 * 5 * 1024 * 1024;
		//response的编码为"gb2312",同时采用缺省的文件名冲突解决策略,实现上传 
		MultipartRequest multi = new MultipartRequest(request, saveDirectory, maxPostSize, "gb2312");

		//输出反馈信息 
		Enumeration files = multi.getFileNames();
		while (files.hasMoreElements())
		{
			System.err.println("ccc");
			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);
			}
		}

		//response.setContentType("application/json");
		//response.getWriter().write("{success:true,message:'上传成功'}");            

		response.setContentType("text/html;charset=utf-8");
		response.getWriter().print("{success:true,msg:'成功'}");

	}
}

评论

1 楼 jj_liu 2008-08-30  

为什么我总是报,行24,语法错误呢