$.post与springmvc数据交互

js代码

$(document).ready(function(){
    $(".submit_btn").click(function(){
        var flag = false;
        manageName = $("#manageName").val();
        managePwd = $("#managePwd").val();
        alert(manageName);
        alert(managePwd);
        if(manageName == ""){
            alert("请输入用户名");
        }else if(managePwd == ""){
            alert("请输入密码");
        }else if(!validate()){
            alert("验证码错误");
        }else{
            flag = true;
            alert("可以提交");
            login();
        }
    });
    function login(){
        $.post('/ACGshopping/login.action',
                {manageName : manageName,managePwd : managePwd},
                function(data){
                    if(data == "success"){
                        alert("登录成功!");
                        //location.href="showManage.action";
                    }else{
                        alert("账户或密码错误!");
                    }
        },"text");
    }
});

springmvc中controller代码

    //通过用户名验证密码
    @RequestMapping("/login")
    public void login(String manageName, String managePwd,HttpServletResponse response) throws IOException{
        Manage manage = null;
        String str;
        manage = manageService.selectByManageName(manageName);
        if(manage!=null){
            str = "success";
        }else{
            str = "fail";
        }
        PrintWriter out = response.getWriter();
        out.write(str);
        out.close();
    }