node.js Express.js - 如何为所有响应设置标头
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Express.js - How to set a header to all responses
提问by znat
I am using Express for web services and I need the responses to be encoded in utf-8.
我将 Express 用于 Web 服务，我需要将响应编码为 utf-8。
I know I can do the following to each response:
我知道我可以对每个响应执行以下操作：
response.setHeader('charset', 'utf-8');
Is there a clean way to set a header or a charset for all responses sent by the express application?
是否有一种干净的方法可以为快速应用程序发送的所有响应设置标头或字符集？
回答by jfriend00
Just use a middleware statement that executes for all routes:
只需使用对所有路由执行的中间件语句：
// a middleware with no mount path; gets executed for every request to the app
app.use(function(req, res, next) {
res.setHeader('charset', 'utf-8')
next();
});
And, make sure this is registered before any routes that you want it to apply to:
并且，确保在您希望它应用到的任何路由之前注册它：
app.use(...);
app.get('/index.html', ...);
Express middleware documentation here.
