ファイルのアップロード(apache commons.fileuploadを使用)
jspページ
Fileupload.java
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>File upload</title>
</head>
<body>
<form name="myform" action="/Fileupload" method="post" enctype="multipart/form-data">
File:<br>
<input type="file" name="myfile"><br><br>
<input type="submit" name="submit" id="submit" value="Commit">
</form>
</body>
</html>
Fileupload.java
public class Fileupload extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doPost(request, response);
}
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws IOException, ServletException {
try {
//
String uploadPath = getServletContext().getRealPath("/upload"); //
//String uploadPath = "F:/excise/web/upload";
File uploadFile = new File(uploadPath);//
// ，
if (!uploadFile.exists()) {
uploadFile.mkdir();
}
// ， DiskFileItemFactory
File tempfile = new File(System.getProperty("java.io.tmpdir"));
DiskFileItemFactory diskFileItemFactory = new DiskFileItemFactory();
diskFileItemFactory.setSizeThreshold(4096); // 4kb
diskFileItemFactory.setRepository(tempfile); //
ServletFileUpload fu = new ServletFileUpload(diskFileItemFactory); //
fu.setHeaderEncoding("utf-8");// ，
fu.setSizeMax(4194304);//
List<FileItem> fileItems = fu.parseRequest(request); // ， List
for (FileItem fi : fileItems) {
String fileName = fi.getName();
if (fileName != null) {
File fullFile = new File(fileName);
File savedFile = new File(uploadPath, fullFile.getName());
fi.write(savedFile); // ，
}
}
System.out.println("upload succeed");
} catch (Exception e) {
e.printStackTrace();
}
}
}