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，因此我正在获取用户输入到文本框中以传递到搜索控制器的值.但是，它一直告诉我 params 查询为空.似乎搜索没有被传递到创建链接方法中.有人有建议吗?

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?

推荐答案

Grails(控制器、GSP 和标签等)正在服务器端工作.客户端的 JavaScript.而且这个链接是在向浏览器发送数据之前准备的，在 JavaScript 可以将其变量传递给 GSP 标签之前.

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.

但是您可以在服务器端准备基本链接，并在客户端添加额外的参数，通过使用 javascript，例如:

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);

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