使用commons-fileupload实现表单提交上传，并取出参数，解决了乱码

来源：互联网发布：电脑数据库在哪里打开编辑：程序博客网时间：2024/05/19 08:02

File tempfile = null;
  List itemsList = null;
  try {
   tempfile = new File(System.getProperty("java.io.tmpdir"));
   DiskFileItemFactory diskFileItemFactory = new DiskFileItemFactory();
   diskFileItemFactory.setSizeThreshold(4096);
   diskFileItemFactory.setRepository(tempfile);
   ServletFileUpload sfu = new ServletFileUpload(diskFileItemFactory);
   sfu.setHeaderEncoding("utf-8");
   sfu.setSizeMax(4194304);
   itemsList = sfu.parseRequest(request);
  } catch (FileUploadException e) {
   e.printStackTrace();
  }
  Iterator itr = itemsList.iterator();
  String fileName = null;
  while (itr.hasNext()) {
   FileItem fi = (FileItem) itr.next();
   /*********************************取出表单域中的参数以及对应提交的值***************/

if (fi.isFormField()) {
if (fi.getFieldName().equals("receiver")) {

     //解决中文参数乱码问题
     receiver = new String(fi.getString("UTF-8"));
    }
    if (fi.getFieldName().equals("sender")) {

    //解决中文参数乱码问题
     sender = new String(fi.getString("UTF-8"));
    }
    if (fi.getFieldName().equals("title")) {

//解决中文参数乱码问题

title = new String(fi.getString("UTF-8"));

       //解决中文参数乱码问题

    }
    if (fi.getFieldName().equals("content")) {

       //解决中文参数乱码问题

     content = new String(fi.getString("UTF-8"));
    }
   } else {

/*******************************上传文件部分*****************************/
    fileName = fi.getName();
    if (fileName != null&&fileName.length()!=0) {

     File fullFile = new File(fi.getName());

     String fileType=fullFile.getName().substring(fullFile.getName().lastIndexOf("."));
     //避免上传文件重名
     String saveFileName=new SimpleDateFormat("yyMMddHHssmm").format(new Date())+String.valueOf((int)Math.random()*1000)+fileType;

     //文件上传到的文件夹在web。xml中进行配置，通过servletcontext取得
     String uploadPath=getServletContext().getInitParameter("uploadPath");

     File filePath=new File(uploadPath);

     if(!filePath.exists()){
      filePath.mkdirs();
     }
     File savedFile = new File(
       uploadPath, saveFileName);
     try {
      fi.write(savedFile);
     } catch (Exception e) {
      e.printStackTrace();
     }
    }