如何通过URL将参数传递给GAE上的JavaScript代码？
[英]How to pass a parameter by URL to the JavaScript code on GAE?
问题描述
I'd like to pass a parameter in request URL to the JavaScript code on GAE environment. 
我想将请求URL中的参数传递给GAE环境中的JavaScript代码。
For example, following URL was entered. 例如，输入了以下URL。
http://example.com:8080/hello?key=abc http://example.com:8080/hello?key=abc
The hello page was rendered with hello.py and hello.tmpl which are shown below respectively. hello页面使用hello.py和hello.tmpl呈现，分别如下所示。
'''hello.py'''
key = self.request.get('key')
{# hello.tmpl #}
<html>
<div id="key">{{ key }}</div>
<script src="hello.js"></script>
</html>
In order to refer the key specified with URL in hello.js, the function can be written as following. 为了在hello.js中引用用URL指定的密钥，该函数可以写成如下。
// hello.js
function() {
console.log($('#key').text());
};
It works well and meets my original request that a parameter was propagated from the URL to the JavaScript Code. 它运行良好，符合我的原始请求，即参数从URL传播到JavaScript代码。
However, I felt like it's not a smart way. 但是，我觉得这不是一个聪明的方式。 I used div tag as a buffer between URL and JavaScript code. 我使用div标签作为URL和JavaScript代码之间的缓冲区。 Does anyone know any smarter way to do this? 有谁知道更聪明的方法吗？
1 个解决方案
解决方案1
3 2012-07-03 14:53:53
You can use data extension instead of adding a div: 您可以使用数据扩展而不是添加div：
<body data-key='{{key}}'>
<...>
</body>
// hello.js
function() {
console.log($('body').data('key'));
};
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