<!DOCTYPE html>
<html>
<head>
<title>express 主页</title>
<meta charset="utf-8">
<script type="text/javascript" src="jquery.min.js"></script>
</head>
<body>
<div>
I love you!
</div>
<button>click there to download a pictutre</button>
<a href="/download">download</a>
<script type="text/javascript">
$(function(){
$('button').click(function(){
$('div').load("public/example.htm",function(data,status){
console.log(data);
console.log(status);
console.log("success");
})
})
})
</script>
</body>
</html>example.htm内容：<img src="example.jpg" alt="ajax 加载的图片">
后端代码
var express = require("express");
var app = express();
app.get("public/example.htm",function(req,res){
/*res.json({
name:'sinson',
sex:'male'
})*/
res.sendFile("public/example.htm");
res.end();
})
但是结果是Failed to load resource: the server responded with a status of 404 (Not Found)
Cannot GET /public/example.htm
![[Web front-end] Démarrage rapide de Node.js](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
app.get("/public/example.htm",function(req,res,next){ res.sendFile(__dirname+"/public/example.htm"); return; })res.sendFile(path [, options] [, fn])
Unless the root option is set in the options object, path must be an absolute path to the file