Javascript

node.js基于express模拟客户端渲染和服务端渲染（基础无模板）

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服务端渲染

/*
 * @Description:express路由表
 * @Author: NanKe
 * @Date: 2021-11-08 16:07:49
 * @LastEditTime: 2021-11-12 12:26:42
 * @LastEditors: NanKe
 * @Cnblogs: https://www.cnblogs.com/NanKe-Studying/
 * @FilePath: \node\express\router\index.js
 */

const express = require("express")
const router = express.Router()
const { list } = require("../controllers")

router.get('/api/list', list)

module.exports = router
/*
 * @Description:控制层
 * @Author: NanKe
 * @Date: 2021-11-08 21:08:11
 * @LastEditTime: 2021-11-08 21:14:14
 * @LastEditors: NanKe
 * @Cnblogs: https://www.cnblogs.com/NanKe-Studying/
 * @FilePath: \node\express\controllers\index.js
 */
const list = (req, res, next) => {
    let data = '<ul>'
    for (let i = 0; i < 100; i++) {
        data += `<li>${i}</li>`
    }
    data += '</ul>'
    res.send(data)
}

exports.list = list
<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>static</title>
    <link rel="stylesheet" href="./styles/reset.css">
    <script src="./scripts/common.js"></script>
</head>

<body>
    hello
    <img src="./images/img1.jpg" alt="">
    <a href="/api/list">api/list</a>
</body>

</html>
/*
 * @Description:express服务端渲染
 * @Author: NanKe
 * @Date: 2021-11-08 16:11:51
 * @LastEditTime: 2021-11-12 12:20:17
 * @LastEditors: NanKe
 * @Cnblogs: https://www.cnblogs.com/NanKe-Studying/
 * @FilePath: \node\express\express2.js
 */
const express = require("express")
const router = require("./router/index")
const app = express()

//处理前端传递表单数据 parse application/x-www-form-urlencoded
app.use(express.urlencoded({ extended: false }))
//处理前端传递json数据 parse application/json
app.use(express.json())
//静态资源服务中间件
app.use(express.static('./public'))

app.use('/', router)

app.listen(8080, () => {
    console.log("localhost:8080 Listen");
})

目录结构

 

 点击访问

 

 成功请求服务端渲染好的html模板

 

 

客户端渲染（前后端分离）

/*
 * @Description:express路由表
 * @Author: NanKe
 * @Date: 2021-11-08 16:07:49
 * @LastEditTime: 2021-11-12 12:26:42
 * @LastEditors: NanKe
 * @Cnblogs: https://www.cnblogs.com/NanKe-Studying/
 * @FilePath: \node\express\router\index.js
 */

const express = require("express")
const router = express.Router()
const { list } = require("../controllers")

router.get('/api/list', list)

module.exports = router
/*
 * @Description:控制层
 * @Author: NanKe
 * @Date: 2021-11-08 21:08:11
 * @LastEditTime: 2021-11-12 13:07:38
 * @LastEditors: NanKe
 * @Cnblogs: https://www.cnblogs.com/NanKe-Studying/
 * @FilePath: \node\express\controllers\index.js
 */
const list = (req, res, next) => {
    let dataObj = {
        code:200,
        data:[]
    }
    for(let i=0;i<100;i++){
        dataObj.data.push('line'+i)
    }
    res.send(dataObj)
}

exports.list = list
/*
 * @Description: 
 * @Author: NanKe
 * @Date: 2021-11-12 11:43:54
 * @LastEditTime: 2021-11-12 13:39:55
 * @LastEditors: NanKe
 * @Cnblogs: https://www.cnblogs.com/NanKe-Studying/
 * @FilePath: \node\express\public\scripts\common.js
 */
$.ajax({
    url: "/api/list",
    success(result) {
        console.log(result);
        let html = '<ul>'
        $.each(result.data, function (indexInArray, valueOfElement) { 
             html += '<li>' + valueOfElement + '</li>'
        });
        html +="</ul>"
        $('#list').html(html)
    }
});
/*
 * @Description:express+路由表--》获取前端传递的参数
 * @Author: NanKe
 * @Date: 2021-11-08 16:11:51
 * @LastEditTime: 2021-11-12 12:20:17
 * @LastEditors: NanKe
 * @Cnblogs: https://www.cnblogs.com/NanKe-Studying/
 * @FilePath: \node\express\express2.js
 */
const express = require("express")
const router = require("./router/index")
const app = express()

//处理前端传递表单数据 parse application/x-www-form-urlencoded
app.use(express.urlencoded({ extended: false }))
//处理前端传递json数据 parse application/json
app.use(express.json())
//静态资源服务中间件
app.use(express.static('./public'))

app.use('/', router)

app.listen(8080, () => {
    console.log("localhost:8080 Listen");
})
<!--
 * @Description: 
 * @Author: NanKe
 * @Date: 2021-11-12 11:43:54
 * @LastEditTime: 2021-11-12 13:32:40
 * @LastEditors: NanKe
 * @Cnblogs: https://www.cnblogs.com/NanKe-Studying/
 * @FilePath: \node\express\public\index.html
-->

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>static</title>
    <link rel="stylesheet" href="./styles/reset.css">
    <script src="https://cdn.bootcdn.net/ajax/libs/jquery/3.6.0/jquery.js"></script>
    <script src="./scripts/common.js"></script>
</head>

<body>
    hello
    <img src="./images/img1.jpg" alt="">
    <a href="/api/list">api/list</a>
    <div id="list"></div>
</body>

</html>

可以看到这种请求方式 就是前端获取到json数据 html才在浏览器进行渲染

 

 

 

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