flex 多文件上传

- 日理万妓 2022-08-03 23:50 156阅读 0赞

主文件mxml:

<?xml version="1.0" encoding="utf-8"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="vertical" horizontalAlign="left" fontSize="12" initialize="init()" viewSourceURL="srcview/index.html"> <mx:NumberFormatter id="filesizeFormatter" useThousandsSeparator="true"/> <mx:Script>  </mx:click> </mx:Button> <mx:CheckBox id="checkboxSingleThread" label="同时上传多个文件" selected="\{!useSingleThread\}" change="useSingleThread = !checkboxSingleThread.selected"/> </mx:HBox> <mx:Image id="img" width="400" height="300"/> </mx:Application>

java代码：UploadFile.java

package com.airflex.util; import java.io.File; import java.io.IOException; import java.util.Iterator; import java.util.List; 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; /\*\* \* @author Administrator \* \*/ /\*\* \* @author Administrator \* \*/ /\*\* \* @author Administrator \* \*/ /\*\* \* @author Administrator \* \*/ public class UploadFile extends HttpServlet \{ private static final long serialVersionUID = 5425836142860976977L; /\*\* \*/ /\*\* \* Processes requests for both HTTP <code>GET</code> and <code>POST</code> \* methods. \* \* @param request \* servlet request \* \* @param response servlet response \*/ // 定义文件的上传路径 private String uploadPath = "D://workspace//FlexNet//flex\_src//assets//projectImg//"; // 限制文件的上传大小 private int maxPostSize = 100 \* 1024 \* 1024; // 最大100M public UploadFile() \{ super(); \} public void destroy() \{ super.destroy(); \} /\*\* \* @param request \* @param response \* @throws ServletException \* @throws IOException \*/ protected void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException \{ System.out.println("Access !"); response.setContentType("text/html;charset=UTF-8"); // 保存文件到服务器中 DiskFileItemFactory factory = new DiskFileItemFactory(); factory.setSizeThreshold(4096); ServletFileUpload upload = new ServletFileUpload(factory); upload.setHeaderEncoding("utf-8"); upload.setSizeMax(maxPostSize); try \{ List fileItems = upload.parseRequest(request); Iterator iter = fileItems.iterator(); while (iter.hasNext()) \{ FileItem item = (FileItem) iter.next(); if (!item.isFormField()) \{ String name = item.getName(); System.out.println(name); try \{ item.write(new File(uploadPath + name)); response.getWriter().write("上传成功。"); \} catch (Exception e) \{ e.printStackTrace(); response.getWriter().write(e.getMessage()); \} \} \} \} catch (FileUploadException e) \{ e.printStackTrace(); response.getWriter().write(e.getMessage()); System.out.println(e.getMessage() + "结束"); \} \} protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException \{ processRequest(request, response); \} /\*\* \*/ /\*\* \* Handles the HTTP <code>POST</code> method. \* \* @param request \* servlet request \* @param response \* servlet response \*/ protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException \{ processRequest(request, response); \} /\*\* \*/ /\*\* \* Returns a short description of the servlet. \*/ public String getServletInfo() \{ return "Short description"; \} \}

然后在web.xml中加入：

<servlet> <servlet-name>UploadFile</servlet-name> <servlet-class>com.airflex.util.UploadFile</servlet-class> </servlet> <servlet-mapping> <servlet-name>UploadFile</servlet-name> <url-pattern>/UploadFile</url-pattern> </servlet-mapping>