使用Ajax和Node.js的简单按钮单击示例？(Simple button click example with Ajax and Node.js?)

 我是Ajax和Node.js + Express的新手。 在这一点上，我试图弄清楚如何通过按钮与前端和后端进行通信。 
 
 我在HTML页面上有一个按钮，我想用它从后端调用函数并将文本输出到客户端。 
 
 以下是我根据需要拼凑的内容，但我正在寻找一个如何做到这一点的例子。 
 
 这一切都发生在/ page上 
 
 index.hjs文件 
 
<button class="btn btn-success" onclick="install()">Install</button>

// Client Side Ajax Script
<script>
    $('button').click(function () {
        $.post('/page', {data: 'blah'}, function (data) {
        console.log(data);
      });
    }, 'json');
</script>
 
 app.js文件 
 
app.post('/page', function (req, res, next) {
  calling.aFunction();
  res.write('A message!');
});
 
 这些是我需要的所有部件以及需要编辑哪些部件才能使此功能正常工作？ 

I am new to both Ajax and Node.js + Express. At this point I am trying to figure out how to communicate with both the front and back end through buttons.
 
I have a button on an HTML page which I would like to use to call a function from the backend and output text to the client.
 
Here is what I've pieced together for what I need but I am looking for an example on how this could be done.
 
This is all happening on /page
 
index.hjs file
 
<button class="btn btn-success" onclick="install()">Install</button>

// Client Side Ajax Script
<script>
    $('button').click(function () {
        $.post('/page', {data: 'blah'}, function (data) {
        console.log(data);
      });
    }, 'json');
</script>
 
app.js file
 
app.post('/page', function (req, res, next) {
  calling.aFunction();
  res.write('A message!');
});
 
Are these all the parts that I need and what needs to be edited to get this functionality to work?

原文：https://stackoverflow.com/questions/27158186