春天和阿贾克斯 [英] Spring and Ajax

问题描述

我可以使用Spring表单标签库与Ajax的结合？ 我不能够检索控制器内的表单输入参数。他们总是空

Can I use spring form tag library in conjunction with Ajax? I'm not able to retrieve the form input parameters inside the controller. They are always null.

其实，有一个逻辑形式是永远不会提交。但后来我只能发送字符串我的控制器，而不是一个对象作为一个表单情况提交被映射到春的 commandBean

Actually there is a logic that the form is never submitted. But then I can only send strings to my controller and not an object as happens with a form submit that gets mapped to a Spring commandBean.

形式接受 commandBean

<form:form method="POST" commandName="clinicBean">
    Clinic Name: <form:input path="name" type="text" /><br/>
    Clinic Address: <form:input path="address" type="text"/><br/>
    <input type="button" value="Create Clinic" onclick="clinicAjax()"/>
</form:form>

阿贾克斯函数调用在春控制器

function clinicAjax(){
    alert('Inside Clinic Ajax Method');
    $.ajax({
        url: 'clinicAjax',
        type: 'POST',
        success: alert('Ajax Successful')
    });
}

春季控制器的方法：

@RequestMapping(value="clinicAjax",method=RequestMethod.POST)


 public @ResponseBody String createClinic(@ModelAttribute("clinicBean") Clinic clinic){
        System.out.println("Ajax call successful");
        System.out.println(clinic);
        System.out.println(clinic.getName());
        System.out.println(clinic.getAddress());
        return "SUCCESS";
    }

它总是得到的空中的System.out.println（）语句。

It always gets null in the System.out.println() statements.

推荐答案

现在的问题是，你不序列化表单任何地方，所以它没有被发送到服务器。

The problem is that you're not serializing your form anywhere so it's not being sent to the server.

更改您的javascript code到：

Change your javascript code to:

function clinicAjax(){
    alert('Inside Clinic Ajax Method');
    $.ajax({
        url: 'clinicAjax',
        data: yourFormElement.serialize(); /* i.e. $('#formId').serialize(); */
        type: 'POST',
        success: alert('Ajax Successful')
    });
}

代替 yourFormElement 与jQuery对象重新presenting表单，它应该工作。

substitute yourFormElement with jQuery object representing your form and it should work.

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