你如何将一个JavaScript变量传递给你的Groovy控制器? [英] How do you pass a JavaScript variable to your Groovy controller?
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问题描述
我一直在Google上搜索一段时间,但找不到解决此问题的解决方案。我尝试从我的Groovy控制器中的GSP文件访问JavaScript变量,但我无法找到如何执行此操作的操作。
$ b 示例:
// JavaScript stuff
< script>
函数validateForm(){
var ret = false
}
< / script>
// Groovy控制器的东西
def myAction = {
println params.ret
}
我如何获得与此类似的东西?
解决方案
将一个变量传递给控制器:
- Ajax
- 表格提交
strong> Ajax 使用remoteFunction
- >
$ {remoteFunction(controller:'actionsController',action:'implementsNewPixel',params:'\'ret = \'+ ret ')}
-
使用Ajax
var ret = false;
jQuery.ajax({
url:$ {createLink(controller:'actionsController',action:'implementsNewPixel')},
data:ret =+ ret,
success:function(data){
alert(data);
}
});
等。
表单提交
< script src =// ajax .googleapis.com / AJAX /库/ jquery的/ 1.9.1 / jquery.min.js>< /脚本>
< script>
var ret;
函数validateForm(){
ret = false;
}
jQuery(function(){
jQuery([name ='jftForm'])。submit(function(){
jQuery( name ='ret'])。val(ret);
});
});
< / script>
...
< g:hiddenField name =retvalue =/>
< g:submitButton name =submitvalue =提交/>
< / g:表格>
I have been searching on Google for a really good while, and I cannot find a solution to this problem. I am trying to access a JavaScript variable from my GSP file in my Groovy controller, but I can't find out how to do this.
Example:
//JavaScript stuff <script> function validateForm(){ var ret = false } </script> //Groovy controller stuff def myAction = { println params.ret }
How do I achieve something similar to this?
解决方案Two ways to pass a variable to the controller:
- Ajax
- Form submit
Ajax
Use
remoteFunction
${remoteFunction(controller: 'actionsController' , action: 'implementNewPixel', params: '\'ret=\' + ret')}
Use Ajax
var ret = false; jQuery.ajax({ url: "${createLink(controller: 'actionsController', action: 'implementNewPixel')}", data: "ret=" + ret, success: function (data) { alert(data); } });
etc.
Form submit
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script> <script> var ret; function validateForm(){ ret = false; } jQuery(function () { jQuery("[name='jftForm']").submit(function () { jQuery("[name='ret']").val(ret); }); }); </script> <g:form name="jftForm" controller="actionsController" action="implementNewPixel"> ... <g:hiddenField name="ret" value=""/> <g:submitButton name="submit" value="Submit"/> </g:form>
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