findpwdservlet.java

JSP实现注册模块

package ch14.Servlet;

import java.io.IOException;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.Collection;

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

import ch14.JavaBean.DB_User;

/**
 * 
 * @author qq
 *
 * 密码寻找
 */

public class FindPwdServlet extends javax.servlet.http.HttpServlet 
                              implements javax.servlet.Servlet {

	//构造函数
	public FindPwdServlet() {
		super();
	}
	
	//服务器端的验证、提交处理
	protected void doPost(HttpServletRequest request,HttpServletResponse response)
	                 throws ServletException, IOException {
		response.setContentType("text/html;charset=GB2312");

		String logname = request.getParameter("logname");
		String question= request.getParameter("question");
		String answer= request.getParameter("answer");

		DB_User dbuser = new DB_User();
		//根据用户姓名，问题，答案获得用户登陆密码
		String password = dbuser.getPassword(logname,question,answer);
		if (password != null) {
			request.setAttribute("password",password);
		} else{
			request.setAttribute("password","输入的用户名与密码提示问题、答案不匹配，请重试！");
		}
		try {
			//转发至找回密码页面
			request.getRequestDispatcher("./FindPwd.jsp").forward(request,response);
		} catch (Throwable t) {
			//写异常日志
			getServletContext().log(t.getMessage());
		}
	}
}