Html 从没有jquery的按钮的html的onclick事件调用Spring mvc控制器的post方法
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Call Spring mvc controller's post method from html's onclick event of button without jquery
提问by iknownothing
where i am trying to use button(not necessarily for purpose of submit) and onclick i want to call spring mvc's controller method whose requestmethod type should be POST not GET.
我试图使用按钮（不一定是为了提交）和 onclick 我想调用 spring mvc 的控制器方法，其 requestmethod 类型应该是 POST 而不是 GET。
<input type="button" onClick="location.href='/result'"/>
This is my controller method which is being called on click.
这是我的控制器方法，它在点击时被调用。
@RequestMapping(value="/result")
public ModelAndView postPrintHello(@ModelAttribute("product") Product product){
ModelAndView model = new ModelAndView();
model.addObject("product", product);
model.setViewName("result");
return model;
}
But when i Add RequestMethod.POST it is not called. Please suggest me wayout for this and also let me know if i missed something from view front.
但是当我添加 RequestMethod.POST 时它不会被调用。请为我建议出路，如果我错过了从前面看的东西，也请告诉我。
回答by Ahmad
try this
尝试这个
HTML:
HTML：
<input type='button' value='Submit'>
JS:
JS：
$('input').on('click', function () {
$.ajax({
type:'POST',
url :"result",
success: function(data) {
console.log('success',data);
},
error:function(exception){alert('Exeption:'+exception);}
});
e.preventDefault();
});
Without JS or JQuery
没有 JS 或 JQuery
<input type="button" onclick="location.href='/result'" value="Submit" >
Note: With this way you can only send GET Request, your controller should have this annotation method = RequestMethod.GET
注意：通过这种方式你只能发送 GET 请求，你的控制器应该有这个注释 method = RequestMethod.GET
and if You want POST request without Jquery use Form
如果您想要没有 Jquery 的 POST 请求，请使用 Form
<form action="/result" method="post">
<input type="submit" value="Submit" />
</form>
回答by manish
Either make button type submit or call javascript method and submit form like document.forms["myform"].submit();
要么使按钮类型提交要么调用javascript方法并提交表单，如document.forms["myform"].submit();
回答by Er Kapil Mehta
First in form tag you have required some changes
首先在表单标签中，您需要进行一些更改
<form action="/servlet" method="post">
<input type="submit" name="login" />
</form>
it will call your doPost() method
它会调用你的 doPost() 方法
