UploadDialog使用完整代码

来源：互联网发布：smartptt对讲软件下载编辑：程序博客网时间：2024/06/06 03:37

原文：http://blog.csdn.net/primary_wind/article/details/24592305

1.导入uploaddialog需要的js库

附上下载地址，里面有所用到的方法的介绍

http://www.max-bazhenov.com/dev/upload-dialog-2.0/

1.首先创建dialog对象

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var uploadDialog = Ext.create("Ext.ux.UploadDialog.Dialog", {  

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url:"uploadexl.do", //处理请求servlet  
shadow : true,  
post_var_name:"uploadFiles",   
draggable:true,   
resizable:true,   
constraintoviewport:true,   
modal:true,   
reset_on_hide:false,   
allow_close_on_upload:false,   
upload_autostart:false,   
base_params:{},   
post_var_name:"file",   
permitted_extensions:["xls"], //允许上传文件后缀  
);  

2.编写各种状态响应的操作方法，并注册

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onUploadSuccess = function (dialog, filename, resp_data, record) {  
        Ext.Msg.alert("提示","文件已经上传完毕!");  
        store.load();  
    };  
      
onUploadFailed = function (dialog, filename, resp_data, record) {  
        Ext.Msg.alert(resp_data.data);  
    };  
      
onUploadComplete = function (dialog) {  
        Ext.Msg.alert("提示","文件已经上传完毕!");  
        uploadDialog.hide();  
        store.load();  
    };  
      
uploadDialog.on("uploadsuccess", onUploadSuccess);  
uploadDialog.on("uploadfailed", onUploadFailed);  
uploadDialog.on("uploaderror", onUploadFailed);  
uploadDialog.on("uploadcomplete", onUploadComplete);  

3.编写uploadservlet，需要用到另外的jar包进行上传文件的读取，可以搜索org.apache.commons.fileupload进行下载导入即可。

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package view;  
  
import java.io.File;  
import java.io.IOException;  
import java.util.Iterator;  
import java.util.List;  
  
import javax.servlet.ServletConfig;  
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 data.UserManagerDAO;  
  
public class UploadServlet extends HttpServlet {  
    private static final long serialVersionUID = 1L;  
    public static String uploadPath = "";  
  
    public void init(ServletConfig config) throws ServletException {  
        uploadPath = config.getServletContext().getRealPath("/") + "upload/";  
        super.init(config);  
    }  
  
    @SuppressWarnings("deprecation")  
    protected void doPost(HttpServletRequest request,  
            HttpServletResponse response) throws ServletException, IOException {  
        request.setCharacterEncoding("utf-8");  
        response.setContentType("text/html;charset=UTF-8");  
        try {  
            DiskFileItemFactory factory = new DiskFileItemFactory();  
            factory.setSizeThreshold(4096);  
            File path = new File(uploadPath);  
            if (!path.exists()) {  
                path.mkdir();  
            }  
            factory.setRepository(path);  
  
            ServletFileUpload upload = new ServletFileUpload(factory);  
            upload.setSizeMax(2147483647L);  
            List<FileItem> fileItems = null;  
            fileItems = upload.parseRequest(request);  
            Iterator<FileItem> i = fileItems.iterator();  
            while (i.hasNext()) {  
                FileItem fi = (FileItem) i.next();  
                String fileName = fi.getName();  
                int start = fileName.lastIndexOf("\\");  
                String paths = fileName.substring(start + 1, fileName.length());  
                System.out.println(fileName);  
                fi.write(new File(uploadPath + paths));  
  
            }  
            File file = new File(uploadPath);  
            uploadPath = uploadPath.replaceAll("/", "\\\\");  
            String test[];  
            test = file.list();  
            for (int b = 0; b < test.length; b++) {  
                String getfilename = uploadPath + test[b];  
                getfilename = getfilename.replaceAll("\\\\", "/");  
                if (getfilename.endsWith(".xls")) {  
                    UserManagerDAO.saveExcel(getfilename);  
                }  
            }  
            response.getWriter().write("{success:true,message:'文件上传成功'}");  
        } catch (Exception e) {  
            System.out.println(e.getMessage() + " : " + e.getCause());  
            response.getWriter().write("{success:false,message:'error...'}");  
        }  
    }  
}  

4.完毕！

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