express中的res.send和res.write有什么区别? [英] What is the difference between res.send and res.write in express?
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问题描述
我是express.js的初学者，我想了解res.send和res.write之间的区别?
解决方案
重新发送
- res.send仅在Express js中.
- 执行许多有用的任务，以实现简单的非流式响应.
- 能够自动分配Content-Length HTTP响应标头字段.
- 能够提供自动HEAD& HTTP缓存新鲜度支持.
-
实用说明
-
res.send只能被调用一次，因为它等效于res.write+res.end() -
示例
app.get('/user/:id', function (req, res) { res.send('OK'); });
-
了解更多详情 expressjs.com/en/api.html
res.write
- 可以被多次调用以提供身体的连续部分.
-
示例
response.write('<html>'); response.write('<body>'); response.write('<h1>Hello, World!</h1>'); response.write('</body>'); response.write('</html>'); response.end();
更多详细信息
nodejs.org/docs
nodejs. org/en/docs/guides
I am a beginner to express.js and I am trying to understand the difference between res.send and res.write ?
解决方案
res.send
- res.send is only in Express js.
- Performs many useful tasks for simple non-streaming responses.
- Ability to automatically assigns the Content-Length HTTP response header field.
- Ability to provides automatic HEAD & HTTP cache freshness support.
Practical explanation
res.sendcan only be called once, since it is equivalent tores.write+res.end()Example
app.get('/user/:id', function (req, res) { res.send('OK'); });
for more details expressjs.com/en/api.html
res.write
- Can be called multiple times to provide successive parts of the body.
Example
response.write('<html>'); response.write('<body>'); response.write('<h1>Hello, World!</h1>'); response.write('</body>'); response.write('</html>'); response.end();
For more details
nodejs.org/docs
nodejs.org/en/docs/guides
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