Facebook和Twitter分享按钮中的自定义URL(Custom URL in facebook and twitter share button)

 我猜你在public/目录中有一个名为index.html的文件，这是在请求/时会得到的文件，因为这是express.static()默认执行的操作。 
 
 您可以禁用该行为，因此请求将传递给您的/ handler： 
 
app.use(express.static(path.join(__dirname, 'public'), { index : false }));
 
 这在此处记录 。 
 
 或者，您可以通过在静态中间件之前声明请求来确保请求命中/ handler： 
 
app.get('/', function (req, res, next) {
  console.log('I'm trying to log this string');
  // make sure to end the response, to prevent hanging requests.
  res.end();
});

app.use(express.static(path.join(__dirname, 'public')));

I'm guessing that you have a file called index.html in the public/ directory, which is the one that will get served when requesting /, because that's what express.static() does by default.
 
You can disable that behaviour, so the request will be passed to your / handler:
 
app.use(express.static(path.join(__dirname, 'public'), { index : false }));
 
This is documented here.
 
Alternatively, you can make sure that the request hits the / handler by declaring it before the static middleware:
 
app.get('/', function (req, res, next) {
  console.log('I'm trying to log this string');
  // make sure to end the response, to prevent hanging requests.
  res.end();
});

app.use(express.static(path.join(__dirname, 'public')));