uploadFile.jsp
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<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ page import="java.io.*, java.util.*, org.apache.commons.fileupload.*, java.util.*" %>
<%@ page import="org.apache.commons.fileupload.disk.*, org.apache.commons.fileupload.servlet.*" %>
<%!
public void upload(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {
String savePath = this.getServletConfig().getServletContext().getRealPath("");
savePath = savePath + request.getParameter("uploadPath");
File f1 = new File(savePath);
//这里接收了uploadPath的值 System.out.println(request.getParameter("uploadPath"));
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;
}
String fileNmae = request.getParameter("fileNmae");
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;
if(null != fileNmae && !"".equals(fileNmae)){
file = new File(savePath + fileNmae);
}else{
do {
name = new java.text.SimpleDateFormat("yyyyMMddhhmmss").format(new Date()); //获取当前日期
name = name + (int)(Math.random()*90000+10000);
file = new File(savePath + name + extName);
} while (file.exists());
}
//File saveFile = new File(savePath + name + extName);
try {
item.write(file);
} catch (Exception e) {
e.printStackTrace();
}
}
}
if(null != fileNmae && !"".equals(fileNmae)){
response.getWriter().print(fileNmae);
}else{
response.getWriter().print((name.trim() + extName.trim()).trim());
}
}
%>
<%
upload(request, response);
%>