userchangepasswordservlet.java

这是一个内容管理系统（CMS）以MVC方式写出,没有使用框架

package servlet.user;

import java.io.IOException;

import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import Bean.MD5;

/**
 * Servlet implementation class for Servlet: UserChangePasswordServlet
 *
 */
 public class UserChangePasswordServlet extends javax.servlet.http.HttpServlet implements javax.servlet.Servlet {
   static final long serialVersionUID = 1L;
   
    /* (non-Java-doc)
	 * @see javax.servlet.http.HttpServlet#HttpServlet()
	 */
	public UserChangePasswordServlet() {
		super();
	}   	
	
	/* (non-Java-doc)
	 * @see javax.servlet.http.HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
	}  	
	
	/* (non-Java-doc)
	 * @see javax.servlet.http.HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		request.setCharacterEncoding("gb2312");
		RequestDispatcher rd=null;
		MD5 md5=new MD5();
		String UserName=request.getParameter("UserName");
		String OldPasswrod=request.getParameter("OldPassword");
		String UserPassword=request.getParameter("UserPassword");
		String UserPassword2=request.getParameter("UserPassword2");
		
		UserPopedom userpopedom=new UserPopedom();
		userpopedom.setUsername(UserName);
		userpopedom.setUserpassword(UserPassword);
		userpopedom.setUserpassword2(UserPassword2);
		request.setAttribute("userpopedom", userpopedom);
		if(!userpopedom.valipassword(UserName.trim(), md5.getMD5ofStr(OldPasswrod.trim()).trim())){
			rd=request.getRequestDispatcher("/jsjadmin/user/user_passwordchange.jsp?UserName="+UserName.trim());
			rd.forward(request, response);
			return;
		}
		UserPassword=md5.getMD5ofStr(UserPassword.trim());
		String sql="update useraccount set UserPassword=? where UserName=?";
		db.DB dt=new db.DB();
		dt.prepareStatement(sql);
		dt.setString(1, UserPassword);
		dt.setString(2,UserName);
		dt.executeUpdate();
		dt.close();
		rd=request.getRequestDispatcher("/jsjadmin/user/user_password_success.jsp?UserName="+UserName.trim());
		rd.forward(request, response);
		}
}