private voidlogin(HttpServletRequest request, HttpServletResponse response)throwsServletException, IOException {
String verifycode= request.getParameter("verifycode");
String machinecode= (String) request.getSession().getAttribute("rand");if(verifycode.equalsIgnoreCase(machinecode)) {//2.验证用户名和密码
String username = request.getParameter("username");
String password= request.getParameter("password");
System.out.println(username);
User user=userService.login(username, password);if (user != null) {//登录成功
request.getSession().setAttribute("user", user);
response.sendRedirect("index.jsp");
}else{//登录失败
request.setAttribute("msg", "用户名或密码错误");
request.getRequestDispatcher("login.jsp").forward(request,
response);
}
}else{
request.setAttribute("msg", "验证码错误");
request.getRequestDispatcher("login.jsp")
.forward(request, response);
}
}private voidlogin2(HttpServletRequest request, HttpServletResponse response)throwsServletException, IOException {
String verifycode= request.getParameter("verifycode");
String machinecode= (String) request.getSession().getAttribute("rand");if(verifycode.equalsIgnoreCase(machinecode)) {//2.验证用户名和密码
String username = request.getParameter("username");
String password= request.getParameter("password");
System.out.println(username);
User user=userService.login(username, password);if (user != null) {//登录成功
request.getSession().setAttribute("user", user);
PrintWriter out=response.getWriter();
out.write(JSON.toJSONString(new MsgVo(1,"登陆成功")));
}else{//登录失败
PrintWriter out =response.getWriter();
out.write(JSON.toJSONString(new MsgVo(2,"用户名和密码错误")));
}
}else{
PrintWriter out=response.getWriter();
out.write(JSON.toJSONString(new MsgVo(3,"验证码错误")));
}
}