js
$(document).ready(function(){
$("#user_login").click(function(){
var username=$("#user_name").val();
var password=$("#user_password").val();
//alert(username1);
//var username=encodeURI(encodeURI(username1));
//var password=encodeURI(encodeURI(password1));
if(username==""||password==""){
alert("用户名密码不能为空");
$("#user_name").val("");
$("#user_password").val("");
return false;
}
$.ajax({
type:"post",
url:"LoginSer",
//dataType:"json",
data:{"username":username,"password":password},
success:function(data){
alert(1);
if(data=='success'){
//alert(1);
location.href="success.jsp";
}else {
location.href="error.jsp";
}
}
})
})
})`
servlet
public class LoginSer extends HttpServlet {
private static final long serialVersionUID = 7381169134016556647L;
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=utf-8");
response.setCharacterEncoding("UTF-8");
request.setCharacterEncoding("utf-8");
//String uname1=request.getParameter("user_name");//使用action传递
//String passwd1=request.getParameter("user_password");
String uname=request.getParameter("username");
String passwd=request.getParameter("password");
//String uname=URLDecoder.decode(uname1,"utf-8");
//String passwd=URLDecoder.decode(passwd1,"utf-8");
//System.out.println(uname);
LoginBean user=new LoginBean();
user.setUsername(uname);
user.setPassword(passwd);
LoginCheck cku=new LoginCheck();
boolean bool=cku.checkUsre(user);
//session
HttpSession session=request.getSession(true);
session.setAttribute("username", user.getUsername());
PrintWriter out = response.getWriter();//定义out
String forward;
if(bool){
forward="success";
out.println(forward);
System.out.print("success");
}else{
forward="error";
out.println(forward);
}
//RequestDispatcher rd=request.getRequestDispatcher(forward);//页面跳转
//rd.forward(request,response);
}
}
`
