package org.brain.servlet;
import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;
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.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import org.brain.pojos.User;
public class FileUploadfile extends HttpServlet {
/**
*
*/
private static final long serialVersionUID = -7468226186058540868L;
private String uploadPath = ""; // 上传文件的目录
private String tempPath = ""; // 临时文件目录
File tempPathFile;
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws IOException, ServletException {
User user = (User)request.getSession().getAttribute("user");
uploadPath = this.getServletContext().getRealPath("/")+"file\\"+user.getUsername();
tempPath = this.getServletContext().getRealPath("/")+"file\\buffer\\";
init_dir(uploadPath);
response.setContentType("text/html");
response.setCharacterEncoding("utf-8");
request.setCharacterEncoding("utf-8");
PrintWriter out = response.getWriter();
try {
// Create a factory for disk-based file items
DiskFileItemFactory factory = new DiskFileItemFactory();
// Set factory constraints
factory.setSizeThreshold(4096); // 设置缓冲区大小，这里是4kb
//factory.setRepository(tempPathFile);// 设置缓冲区目录
// Create a new file upload handler
ServletFileUpload upload = new ServletFileUpload(factory);
// Set overall request size constraint
upload.setSizeMax(4194304); // 设置最大文件尺寸，这里是4MB
List<FileItem> items = upload.parseRequest(request);// 得到所有的文件
Iterator<FileItem> i = items.iterator();
while (i.hasNext()) {
FileItem fi = (FileItem) i.next();
String fileName = fi.getName();
System.out.println(fileName);
if (fileName != null) {
File fullFile = new File(fi.getName());
File savedFile = new File(uploadPath, fullFile.getName());
fi.write(savedFile);
}
}
out.println("<img width='40px' src='images/icons/right.png' />文件提交成功！");
out.println("<a href='FileUploadfile.jsf'>确定</a>");
// response.sendRedirect("/FileUpload.jsf");
out.flush();
out.close();
} catch (Exception e) {
// 可以跳转出错页面
e.printStackTrace();
}
}
public void init_dir(String uploadPath){
File uploadFile = new File(uploadPath);
if (!uploadFile.exists()) {
uploadFile.mkdirs();
}
File tempPathFile = new File(tempPath);
if (!tempPathFile.exists()) {
tempPathFile.mkdirs();
}
}
}