ext上传组件的servlet服务端程序2022-01-11 14:44:50 package com.fh.servlet;import java.io.File;import java.io.IOException;import java.sql.Timestamp;import java.text.SimpleDateFormat;import java.util.Iterator;import java.util.List;import javax.servlet.*;import javax.servlet.http.*;import org.apache.commons.fileupload.*;public class UploadServlet extends HttpServlet {/** *//****/private static final long serialVersionUID = 7440302204266787092L;String uploadPath = "d:\\uploadtest\\"; // 用于存放上传文件的目录String tempPath = "d:\\tmp\\"; // 用于存放临时文件的目录public UploadServlet() {super();System.out.println("文件上传启动");}public void destroy() {super.destroy(); // Just puts "destroy" string in log// Put your code here}public void init() throws ServletException {System.out.println("文件上传初始化");}public void doPost(HttpServletRequest request, HttpServletResponse response)throws IOException, ServletException {try {System.out.println("开始进行文件上传");DiskFileUpload fu = new DiskFileUpload();fu.setSizeMax(4194304); // 设置最大文件尺寸，这里是4MBfu.setSizeThreshold(4096); // 设置缓冲区大小，这里是4kbfu.setRepositoryPath(tempPath); // 设置临时目录List fileItems = fu.parseRequest(request); // 得到所有的文件：Iterator i = fileItems.iterator();// 依次处理每一个文件：while (i.hasNext()) {FileItem fi = (FileItem) i.next();String fileName = fi.getName();// 获得文件名，这个文件名包括路径：if (fileName != null) {// 在这里可以记录用户和文件信息// 此处应该定义一个接口（CallBack），用于处理后事。// 写入文件a.txt，你也可以从fileName中提取文件名：String extfile = fileName.substring(fileName.indexOf("."));Timestamp now = new Timestamp((new java.util.Date()).getTime());SimpleDateFormat fmt = new SimpleDateFormat("yyyyMMddHHmmssSSS");String pfileName = fmt.format(now).toString().trim();System.out.println(uploadPath + pfileName + extfile);fi.write(new File(uploadPath + pfileName + extfile));}}response.setContentType("text/html;charset=utf-8");response.getWriter().print("{success:true,message:'上传成功'}");// response.getWriter().print("{success:true,msg:'成功'}");// 跳转到上传成功提示页面} catch (Exception e) {e.printStackTrace();response.getWriter().print("{success:flase,message:'失败'}");// 可以跳转出错页面}}} 上一篇：ubuntu 配置 apt 使用代理下一篇：iOS：多线程技术GCD的使用