将Javascript变量传递给createlink方法调用Grails [英] Pass Javascript Variable into createlink method call Grails

问题描述

  var search = document.getElementById（'appMenu'）。value 
 document.location.href ='$ {createLink（controller：'application'，action：'ajaxAppSearch '，params：['query'：search]）}'
  

元素appMenu是一个文本字段，所以我获得了用户输入到文本框以传入搜索控制器的值。但是，它一直告诉我，参数查询为空。似乎搜索没有被传递到创建链接方法。任何人都有建议？

解决方案

Grails（控制器，GSP和标签等）正在服务器端工作。客户端的JavaScript。在将数据发送到浏览器之前，以及在JavaScript可以将其变量传递给GSP标签之前，此链接已准备好。但是，您可以在服务器端准备基本链接，并添加额外参数在客户端，通过使用JavaScript，如：

  var search = document.getElementById（'appMenu'）.value; 
 document.location.href ='$ {createLink（controller：'application'，action：'ajaxAppSearch'）}？query ='+ escape（search）; 
  

var search= document.getElementById('appMenu').value 
document.location.href= '${createLink(controller: 'application' , action:'ajaxAppSearch',   params: ['query': search])}'

The element appMenu is a text field, so I am getting the value that the user enters into the text box to pass into a search controller. However, it keeps telling me that the params query is null. It seems that search isn't being passed into the create link method. Anyone have a suggestion?

解决方案

Grails (controllers, GSP and tags, etc) are working on server side. JavaScript on client side. And this link is prepared before sending data to browser, and before JavaScript can pass its variable into GSP tag.

But you can prepare base link on server side, and add extra parameter on client side, by using javascript, like:

var search= document.getElementById('appMenu').value;
document.location.href= '${createLink(controller: 'application' , action:'ajaxAppSearch')}?query=' + escape(search);

这篇关于将Javascript变量传递给createlink方法调用Grails的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！