javascript 节点中的 req.body 是什么？
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What is req.body in node?
提问by Anshul
I am learning nodejs and express, during my studies I don't understand various uses of reqsuch as:
我正在学习 nodejs 并表示，在我的学习期间，我不了解req诸如以下的各种用途：
var id = req.params.id;
var wine = req.body;
With my reqobject I think am acessing body, params.id, but I do not understand how this works and what result I should expect. Can anyone explain this code in a simpler step by step manner so i can make sense of it ?
对于我的req对象，我认为正在访问body, params.id，但我不明白这是如何工作的以及我应该期待什么结果。谁能以更简单的分步方式解释这段代码，以便我理解它？
Below is some example code where the above is used :
以下是使用上述内容的一些示例代码：
exports.addDoctor = function(req,res){
var doctor = req.body;
console.log(doctor);
db.collection('doctors',function(err,collection){
collection.insert(doctor,{safe:true},function(err,result){
if (err) {
res.send({'error':'An error is occured'});
} else {
console.log('Success: ' + JSON.stringify(result[0]));
res.send(result[0]);
}
});
});
}
In the above example console.log(doctor)only returns {}. Why is this and is it because I have missed something else within the code specifically involving 'req'?
在上面的例子中console.log(doctor)只返回{}. 为什么会这样，是因为我错过了代码中专门涉及“req”的其他内容吗？
回答by August Lilleaas
reqis the request object. It's documented here: http://expressjs.com/api.html#req.params
req是请求对象。它记录在这里：http: //expressjs.com/api.html#req.params
回答by axel.michel
req is an object containing information about the HTTP request that raised the event. There is a simular Question (node.js what is res and req in expressjs?), have a look at the answers there.
req 是一个对象，包含有关引发事件的 HTTP 请求的信息。有一个类似的问题（node.js 什么是 expressjs 中的 res 和 req？），看看那里的答案。
