node的express参数获取

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1.express中的不定向路由参数的获取

如:

app.get('/profile/:id', function(req, res) {

    var id=req.params.id

    res.send(id)

});

要用req.params属性获取

2.express中get传参数获取

如:

代码:

app.get('/', function(req, res) {

   var user = req.query.user

    res.send(user)

});

要用req.query获取

3.express中post参数的获取

如:

<form action="http://127.0.0.1:8081/process_post" method="POST">

    First Name: <input type="text" name="first_name">  <br>

    Last Name: <input type="text" name="last_name">

    <input type="submit" value="Submit">

</form>

var express = require('express');

var app = express();

var bodyParser = require('body-parser');

// 创建 application/x-www-form-urlencoded 编码解析

var urlencodedParser = bodyParser.urlencoded({ extended: false })

app.post('/process_post', urlencodedParser, function (req, res) {

   // 输出 JSON 格式

   response = {

       first_name:req.body.first_name,

       last_name:req.body.last_name

   };

   console.log(response);

   res.end(JSON.stringify(response));

})

要用到body-parser中间件,获取用req.body加变量名