server.listen(port, () => console.log(`server started on port ${port}; ` +
'press Ctrl-C to terminate....'))
把它运行起来,你会发现现在可以浏览主页(
http://localhost:3000
)和“关于”页(
http://
localhost:3000/about
)
了。任何查询串都会被忽略(因此
http://localhost:3000/?foo=bar
会转
到主页),任何其他的
URL
(
http://localhost:3000/foo
)都会转到“页面未找到”页。
2.5.4
提供静态资源
现在我们的简单路由已经起作用了,再来提供一些实际的
HTML
和一个
logo
图片。这些
被称作
静态
资源,因为它们一般不会变化(与此相反的例子是股票行情页——每次你刷新
页面,股票价格都可能会变化)。
由
Node
来提供静态资源,适用于开发阶段和小项目,而对于稍大一些的项目,
你可能希望使用代理服务器,例如
NGINX
或
CDN
。更多信息参见第
17
章。
如果你用过
Apache
或
IIS
,只要创建一个
HTML
文件,然后从浏览器上访问它,文件就
会自动发过来,可能你已经习惯了这种方式。但 ...
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