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  • JQeruy.Uploadify 文件上传

    upload.java

    package servlet;  
          
        import java.io.File;  
        import java.io.IOException;  
        import java.util.Iterator;  
        import java.util.List;  
        import java.util.UUID;  
          
        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.FileUploadException;  
        import org.apache.commons.fileupload.disk.DiskFileItemFactory;  
        import org.apache.commons.fileupload.servlet.ServletFileUpload;  
          
        @SuppressWarnings("serial")  
        public class Upload extends HttpServlet {  
            @SuppressWarnings("unchecked")  
            public void doPost(HttpServletRequest request, HttpServletResponse response)  
                    throws ServletException, IOException {  
                String savePath = this.getServletConfig().getServletContext()  
                        .getRealPath("");  
                savePath = savePath + "/uploads/";  
                File f1 = new File(savePath);  
                System.out.println(savePath);  
                if (!f1.exists()) {  
                    f1.mkdirs();  
                }  
                DiskFileItemFactory fac = new DiskFileItemFactory();  
                ServletFileUpload upload = new ServletFileUpload(fac);  
                upload.setHeaderEncoding("utf-8");  
                List fileList = null;  
                try {  
                    fileList = upload.parseRequest(request);  
                } catch (FileUploadException ex) {  
                    return;  
                }  
                Iterator<FileItem> it = fileList.iterator();  
                String name = "";  
                String extName = "";  
                while (it.hasNext()) {  
                    FileItem item = it.next();  
                    if (!item.isFormField()) {  
                        name = item.getName();  
                        long size = item.getSize();  
                        String type = item.getContentType();  
                        System.out.println(size + " " + type);  
                        if (name == null || name.trim().equals("")) {  
                            continue;  
                        }  
                        //扩展名格式:    
                        if (name.lastIndexOf(".") >= 0) {  
                            extName = name.substring(name.lastIndexOf("."));  
                        }  
                        File file = null;  
                        do {  
                            //生成文件名:  
                            name = UUID.randomUUID().toString();  
                            file = new File(savePath + name + extName);  
                        } while (file.exists());  
                        File saveFile = new File(savePath + name + extName);  
                        try {  
                            item.write(saveFile);  
                        } catch (Exception e) {  
                            e.printStackTrace();  
                        }  
                    }  
                }  
                response.getWriter().print(name + extName);  
            }  
        }

    index.jsp

    <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>  
        <%  
        String path = request.getContextPath();  
        String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";  
        %>  
        <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">  
        <html>  
              <head>  
                <base href="<%=basePath%>">  
                <title>Uploadify</title>  
                <link href="css/default.css" mce_href="css/default.css" rel="stylesheet" type="text/css" />  
                <link href="css/uploadify.css" mce_href="css/uploadify.css" rel="stylesheet" type="text/css" />  
                <mce:script type="text/javascript" src="js/jquery-1.3.2.min.js" mce_src="js/jquery-1.3.2.min.js"></mce:script>  
                <mce:script type="text/javascript" src="js/swfobject.js" mce_src="js/swfobject.js"></mce:script>  
                <mce:script type="text/javascript" src="js/jquery.uploadify.v2.0.1.js" mce_src="js/jquery.uploadify.v2.0.1.js"></mce:script>  
                <mce:script type="text/javascript"><!--  
                $(document).ready(function() {  
                    $("#uploadify").uploadify({  
                        'uploader'       : 'uploadify.swf',  
                        'script'         : 'servlet/Upload',  
                        'cancelImg'      : 'images/cancel.png',  
                        'folder'         : 'uploads',  
                        'queueID'        : 'fileQueue',  
                        'auto'           : false,  
                        'multi'          : true,  
                        'simUploadLimit' : 2,  
                        'buttonText'     : 'BROWSE'  
                    });  
                });  
                  
        // --></mce:script>  
            </head>  
            <body>  
                <div id="fileQueue"></div>  
                <input type="file" name="uploadify" id="uploadify" />  
                <p>  
                <a href="javascript:jQuery('#uploadify').uploadifyUpload()" mce_href="javascript:jQuery('#uploadify').uploadifyUpload()">开始上传</a>   
                <a href="javascript:jQuery('#uploadify').uploadifyClearQueue()" mce_href="javascript:jQuery('#uploadify').uploadifyClearQueue()">取消所有上传</a>  
                </p>  
            </body>  
        </html>

    web.xml

    <?xml version="1.0" encoding="UTF-8"?>  
        <web-app version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee"  
            xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  
            xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee   
            http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">  
            <servlet>  
                <servlet-name>Upload</servlet-name>  
                <servlet-class>servlet.Upload</servlet-class>  
            </servlet>  
            <servlet-mapping>  
                <servlet-name>Upload</servlet-name>  
                <url-pattern>/servlet/Upload</url-pattern>  
            </servlet-mapping>  
            <welcome-file-list>  
                <welcome-file>index.jsp</welcome-file>  
            </welcome-file-list>  
        </web-app>
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  • 原文地址:https://www.cnblogs.com/Irving/p/2849074.html
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