📄 yanzheng.java
字号:
package com.city.edu.oacity;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.*;
import java.sql.*;
import javax.servlet.http.*;
public class yanzheng extends HttpServlet {
/**
* Constructor of the object.
*/
public yanzheng() {
super();
}
/**
* Destruction of the servlet. <br>
*/
public void destroy() {
super.destroy(); // Just puts "destroy" string in log
// Put your code here
}
/**
* The doGet method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to get.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String id=request.getParameter("id");
String pass=request.getParameter("pass");
HttpSession session=request.getSession();
try{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Connection cn=DriverManager.getConnection("jdbc:odbc:xueqiang");
String sql="select * from EMP where EMPID=? and PASSWORD=?";
PreparedStatement ps=cn.prepareStatement(sql);
ps.setString(1,id);
ps.setString(2,pass);
ResultSet rs=ps.executeQuery();
if(rs.next())
{
session.setAttribute("id",id);
RequestDispatcher rd=request.getRequestDispatcher("zhuye");
rd.forward(request, response);
}
else
{
RequestDispatcher rd=request.getRequestDispatcher("denglu");
rd.forward(request, response);
}
}
catch(Exception e)
{
System.out.println("error:"+e.getMessage());
}
}
/**
* The doPost method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to post.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html");
PrintWriter out = response.getWriter();
out
.println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");
out.println("<HTML>");
out.println(" <HEAD><TITLE>A Servlet</TITLE></HEAD>");
out.println(" <BODY>");
out.print(" This is ");
out.print(this.getClass());
out.println(", using the POST method");
out.println(" </BODY>");
out.println("</HTML>");
out.flush();
out.close();
}
/**
* Initialization of the servlet. <br>
*
* @throws ServletException if an error occure
*/
public void init() throws ServletException {
// Put your code here
}
}
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -