jatarta fileupload 实例

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jatarta fileupload 实例
<%
//1.首先在http://jakarta.apache.org/commons/index.html下载FileUpload和IO的jar包，并放到WEB-INF/lib中；
//2.如下代码：
%>
<%@page contentType="text/html; charset=GBK"%>
<%@page import="java.io.*,java.util.*,org.apache.commons.fileupload.*,org.apache.commons.fileupload.disk.*,org.apache.commons.fileupload.servlet.* "%>
<html>
<head>
<title>upload</title>
</head>
<body bgcolor="#ffffff" style="font-family:Arial">
<h1>jakarta fileupload test</h1>
<form method="post" action="upload.jsp" enctype="multipart/form-data">
<br>
<br>
file:
<input type="file" name="file"/>
<br>
Txt:
<input type="text" name="Txt">
<input type="submit" name="Submit" value="Submit">
<input type="reset" value="Reset">
</form>
</body>
</html>
<%
boolean isMultipart = ServletFileUpload.isMultipartContent(request);
Map req = new HashMap();
Map uploadFile = new HashMap();
if (isMultipart) {
    // Create a factory for disk-based file items
    FileItemFactory factory = new DiskFileItemFactory();
    // Create a new file upload handler
    ServletFileUpload upload = new ServletFileUpload(factory);
    // Parse the request
    List items = null; /* FileItem */
    try {
      items = upload.parseRequest(request);
    }
    catch (FileUploadException e) {
      out.println(e);
    }
    // Process the uploaded items
    Iterator iter = items.iterator();
    while (iter.hasNext()) {
      FileItem item = (FileItem) iter.next();
      if (item.isFormField()) {
        String name = item.getFieldName();
        String value = new String(item.getString().getBytes("ISO8859-1"), "GBK");
        req.put(name, value);
      }
      else {
        String fieldName = item.getFieldName();
        uploadFile.put(fieldName, item);
      }
    }
    items.clear();
}
if (!isMultipart) {
    return;
}
//TEST
//request.getParameter("Txt");
String key = "Txt";
String value = req.get(key).toString();
out.println(key + "=" + value);
//save upload File "file"
FileItem item = (FileItem) uploadFile.get("file1");
out.print(item);
if (item != null) {
    String filePath = item.getName(); //全路径文件名
    String fileName = filePath.replaceAll("////", "/");
    fileName = fileName.substring(fileName.lastIndexOf("/") + 1);
    String contentType = item.getContentType();
    boolean isInMemory = item.isInMemory();
    long sizeInBytes = item.getSize();
    File uploadedFile = new File("e:/" + fileName);
    try {
      item.write(uploadedFile);
    }
    catch (Exception e) {}
}
%>

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