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commons-fileupload-1.2.jar和commons-io-1.3.2.jar

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第1个上传组件commons-fileupload =============commons-fileupload ================ common-fileupload组件是apache的一个开源项目之一，可以从http://jakarta.apache.org/commons/fileupload/下载。该组件简单易用，可实现一次上传一个或多个文件，并可限制文件大小。 -下载后解压zip包，将commons-fileupload-1.1.1.jar,和commons-io-1.2.jar(这里我们用的是更新的版本，但是用法是一样的)复制到tomcat的webapps\你的webapp\WEB-INF\lib\下，如果目录不存在请自建目录。新建一个servlet: FileUpload.java用于文件上传： package com.drp.util.servlet; import java.io.IOException; import java.io.PrintWriter; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.commons.fileupload.*; import java.util.*; import java.util.regex.*; import java.io.*; import org.apache.commons.fileupload.servlet.*; import org.apache.commons.fileupload.disk.DiskFileItemFactory; public class FileUpload extends HttpServlet { private String uploadPath = ""; // 用于存放上传文件的目录 private File tempPath = new File("D:\\Tomcat 5.5\\webapps\\drp1.2\\tempimages\\"); // 用于存放临时文件的目录 public void doPost(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException { res.setContentType("text/html; charset=GB18030"); PrintWriter out = res.getWriter(); System.out.println(req.getContentLength()); System.out.println(req.getContentType()); DiskFileItemFactory factory = new DiskFileItemFactory(); // maximum size that will be stored in memory //允许设置内存中存储数据的门限，单位：字节 factory.setSizeThreshold(4096); // the location for saving data that is larger than getSizeThreshold() //如果文件大小大于SizeThreshold，则保存到临时目录 factory.setRepository(new File("D:\\Tomcat 5.5\\webapps\\drp1.2\\tempimages")); ServletFileUpload upload = new ServletFileUpload(factory); // maximum size before a FileUploadException will be thrown //最大上传文件，单位：字节 upload.setSizeMax(1000000); try { List fileItems = upload.parseRequest(req); // assume we know there are two files. The first file is a small //

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