nodejs获取表单数据的三种方法实例

//导入express模块
const express = require("express");
// 创建服务器对象
const app = express();

<form action="/todata" method="POST">
        <table>
            <tr>
                <td>姓名</td>
                <td> <input type="text" name="user" id=""></td>
            </tr>
            <tr>
                <td>密码</td>
                <td> <input type="text" name="password" id=""></td>
            </tr>
            <tr>
                <button type="submit">提交</button>
            </tr>
        </table>
</form>

const express = require("express");
const app = express();
app.use(express.static("./"))
var bodyParser = require('body-parser')
//  解析 application/x-www-form-urlencoded响应头
app.use(bodyParser.urlencoded({ extended: false }))
app.post("/todata",(req,res)=>{
    console.log(req.body);
    res.send("提交成功")
})
app.listen("80",()=>{
    console.log("成功");
})

	 $("#inp3").on("click",function(){
        let user = $("#inp1").val();
        let password = $("#inp2").val();
        $.ajax({
        url:"todata",
        type:"post",
        data:{
            user,
            password
        },
        success:(data)=>{
            alert(data)
        }
         })
    })

		$("#inp3").on("click",function(){
        $.ajax({
        url:"todata",
        type:"post",
        data:$("form").serialize(),
        success:(data)=>{
            alert(data)
        }
         })
    })