显示来自html中nodejs的数据

时间:2016-03-19 10:29:55

标签: javascript jquery html node.js

如果这是一个重复的问题,我很抱歉。但是,我正在努力找出一种方法来显示我的nodejs中的数据。

以下是我的data.js代码:

var express = require('express');
var app = express();
var path = require('path');

var data = new Array;    
data.push([1,2,3]);
data.push([4,"Test data",6]);

app.use(function (req, res) {
    // Website you wish to allow to connect
    res.setHeader('Access-Control-Allow-Origin', 'http://localhost:9000');
    // Request methods you wish to allow
    res.setHeader('Access-Control-Allow-Methods', 'GET, POST, OPTIONS, PUT, PATCH, DELETE');
    // Request headers you wish to allow
    res.setHeader('Access-Control-Allow-Headers', 'X-Requested-With,content-type');
    // Set to true if you need the website to include cookies in the requests sent
    // to the API (e.g. in case you use sessions)
    res.setHeader('Access-Control-Allow-Credentials', true);
    res.send(data)
  //next();
});

app.listen(9000, function () {
  console.log('Example app listening on port localhost:9000!');
});

我想在html页面中显示这些数据。任何人都可以在这里帮助HTML / JQuery脚本吗?感谢。

HTML代码:

    

<script type="text/javascript"> 
 jQuery(document).ready(function($) {   
 alert('Hello');

$.ajax({
    url:"http://localhost:9000",
    dataType: 'json',
    data: data,
    success: success

});

$.get('/', {}, function(data){
// not sure it is the right code
console.log(data);
// then the code to create a list from the array (no pb with that)
});

//function jsonpCallback(data){
//    alert("jsonpCallback");
//}
    //do jQuery stuff when DOM is ready
});
</script>

    <h1>Header Text</h1>

2 个答案:

答案 0 :(得分:1)

首先,您必须设置api路由和文件服务路由。然后你可以调用api方法(例如通过jQuery ajax)并获取响应数据。

答案 1 :(得分:0)

尝试使用此代替您的node.js代码:

var express = require('express');
var app = express();

var data = new Array;    
data.push([1,2,3]);
data.push([4,"Test data",6]);

app.get('/', function (req, res) {
     // Website you wish to allow to connect
    res.setHeader('Access-Control-Allow-Origin', '*');
    // Request methods you wish to allow
    res.setHeader('Access-Control-Allow-Methods', 'GET, POST, OPTIONS, PUT, PATCH, DELETE');
    // Request headers you wish to allow
    res.setHeader('Access-Control-Allow-Headers', 'X-Requested-With,content-type');
    // Set to true if you need the website to include cookies in the requests sent
    // to the API (e.g. in case you use sessions)
    res.setHeader('Access-Control-Allow-Credentials', true);
    res.send(data);
});

app.listen(3000, function () {
  console.log('Example app listening on port 3000!');
});

我现在没有和我一起测试这个节点,但是这应该给你一个想法。你必须定义路线。我为你定义了.get(&#34; /&#34;),因此对主url的每个请求都会调用这个函数。我还将Access-Control-Origin设置为*。如果你想保护一点,请从nodejs提供静态文件。