public class JLLoginController {
@Resource
private LoginService loginService;
@RequestMapping(value="/login.aspx",method={RequestMethod.POST})
public String login(User user,Model model){
if(user.getUsername()!= null){
if(user.getPassword()!= null){
User byUsername = loginService.findByUsername(user);
if(byUsername!=null){
if(user.getUsername().equals(byUsername.getUsername())){
if(user.getPassword().equals(byUsername.getPassword())){
return "hello";
}else {
model.addAttribute("error", "密码错误");
}
}else {
model.addAttribute("error", "用户名错误");
}
}
}else {
model.addAttribute("error", "密码不能为空");
}
}else{
model.addAttribute("error", "用户名不能为空");
}
return "login";
}
上面是java部分的代码,因为是小白啊。就是想把error的信息在jsp页面以弹窗的形式出现,问问各位大神怎么弄。。。