最近在写一个网站,要求能实现文件上传,但是用户上传文件同时可以设置密码,当别人下载他的文件时需要用到这个密码。当表单属性是multipart/form-data时用函数request.Parameter()就会取到一个空值。以下是代码:
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.text.SimpleDateFormat;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import com.jspsmart.upload.File;
import com.jspsmart.upload.Request;
import com.jspsmart.upload.SmartUpload;
import cn.suse.model.*;
public class FileServlet extends HttpServlet {
}