WebRoot/leftlogincheck.jsp

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<%@ page contentType="text/html; charset=gb2312" language="java" import="java.sql.*"%>
<%@ page import="com.util.DBO"%>
<%
DBO db=new DBO();
request.setCharacterEncoding("gb2312");
String yhm=(String)request.getParameter("yhm");
String mm=(String)request.getParameter("mm");
String sql="select * from yonghu where yhm='"+yhm+"' and mm='"+mm+"'";
System.out.println("sql="+sql);
db.open();
ResultSet rs=db.query(sql);
out.println("<script>");
if(rs.next()){
session.setAttribute("yhid",rs.getString("yhid"));
session.setAttribute("yhm",rs.getString("yhm"));
session.setAttribute("mm",rs.getString("mm"));
session.setAttribute("xm",rs.getString("xm"));
session.setAttribute("qx",rs.getString("qx"));

out.println("alert('登录成功');");
	out.println("window.location='shouye.jsp'");
}else{
out.println("alert('用户名或者密码错误');");
out.println("window.history.go(-1);");
}
out.println("</script>");
%>