Vue+Vite+Ts+Python后端demo

一、创建前端工程

1.安装node

进入官网下载：Node.js (nodejs.org)

 选择安装路径后，默认安装；确认是否成功安装：

 

2.创建vite项目

①：npm init vite@latest

②：输入项目名、选择Vue、选择Ts；cd到项目文件夹里；安装依赖项：npm i，启动项目：npm run dev

③：打开浏览器，进入：http://localhost:5173/

 

二、创建后端工程

1.Python代码

from http.server import BaseHTTPRequestHandler, HTTPServer
import json

class CorsHandler(BaseHTTPRequestHandler):
    def _set_response(self):
        self.send_response(200)
        self.send_header('Content-type', 'application/json')
        self.send_header('Access-Control-Allow-Origin', '*')
        self.end_headers()

    def do_GET(self):
        self._set_response()
        response = {'message': 'Hello, world!'}
        self.wfile.write(json.dumps(response).encode('utf-8'))

def run_server(port=8001):
    server_address = ('127.0.0.1', port)
    httpd = HTTPServer(server_address, CorsHandler)
    print(f"Server running on port {port}")
    httpd.serve_forever()

if __name__ == '__main__':
    run_server()

2.功能说明

①.跨域问题

这个问题老生常谈，具体可bing一下。允许其他前端跨域访问后端：

self.send_header('Access-Control-Allow-Origin', '*')

②.实现http的get接口并返回json

def do_GET(self):
    self._set_response()
    response = {'message': 'Hello, world!'}
    self.wfile.write(json.dumps(response).encode('utf-8'))

3.测试

打开浏览器确认：

 注意，这里是127的地址，不是localhost

 

三、配置前端工程

1.目录结构解析

 

index.html：网页入口，在body节点加载了main.ts

main.ts：引入了vue框架，基于vue创建了一个网页app并启动；并引入网站的风格css

style.css：网站的风格css

App.vue：网页内容，在这里搭建html的body

HelloWorld.vue：组件，可以在网页里重复使用的对象

vite.config.ts：工程的配置文件

2.源码

①.index.html

<!doctype html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <link rel="icon" type="image/svg+xml" href="/vite.svg" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Vite + Vue + TS</title>
  </head>
  <body>
    <div id="app"></div>
    <script type="module" src="/src/main.ts"></script>
  </body>
</html>

②.main.ts

import { createApp } from 'vue'
import './style.css'
import App from './App.vue'

createApp(App).mount('#app')

③.style.css

:root {
  font-family: Inter, system-ui, Avenir, Helvetica, Arial, sans-serif;
  line-height: 1.5;
  font-weight: 400;

  color-scheme: light dark;
  color: rgba(255, 255, 255, 0.87);
  background-color: #242424;

  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  font-weight: 500;
  color: #646cff;
  text-decoration: inherit;
}
a:hover {
  color: #535bf2;
}

body {
  margin: 0;
  display: flex;
  place-items: center;
  min-width: 320px;
  min-height: 100vh;
}

h1 {
  font-size: 3.2em;
  line-height: 1.1;
}

button {
  border-radius: 8px;
  border: 1px solid transparent;
  padding: 0.6em 1.2em;
  font-size: 1em;
  font-weight: 500;
  font-family: inherit;
  background-color: #1a1a1a;
  cursor: pointer;
  transition: border-color 0.25s;
}
button:hover {
  border-color: #646cff;
}
button:focus,
button:focus-visible {
  outline: 4px auto -webkit-focus-ring-color;
}

.card {
  padding: 2em;
}

#app {
  max-width: 1280px;
  margin: 0 auto;
  padding: 2rem;
  text-align: center;
}

@media (prefers-color-scheme: light) {
  :root {
    color: #213547;
    background-color: #ffffff;
  }
  a:hover {
    color: #747bff;
  }
  button {
    background-color: #f9f9f9;
  }
}

④.App.vue

<script setup lang="ts">
import HelloWorld from './components/HelloWorld.vue'
</script>

<template>
  <div>
    <a href="https://vitejs.dev" target="_blank">
      <img src="/vite.svg" class="logo" alt="Vite logo" />
    </a>
    <a href="https://vuejs.org/" target="_blank">
      <img src="./assets/vue.svg" class="logo vue" alt="Vue logo" />
    </a>
  </div>
  <HelloWorld msg="Vite + Vue" />
</template>

<style scoped>
.logo {
  height: 6em;
  padding: 1.5em;
  will-change: filter;
  transition: filter 300ms;
}
.logo:hover {
  filter: drop-shadow(0 0 2em #646cffaa);
}
.logo.vue:hover {
  filter: drop-shadow(0 0 2em #42b883aa);
}
</style>

⑤.HelloWorld.vue

<script setup lang="ts">
import { ref } from 'vue'
import axios from 'axios'

defineProps<{ msg: string }>()

const count = ref(1)

function handleClick() {
  // 处理按钮点击事件的逻辑
  console.log("按钮被点击了！");
}

function testHttp() {
    console.log("按钮被点击了！");
    axios.get('http://127.0.0.1:8001')
      .then(function (response) {
        console.log("成功:"+JSON.stringify(response.data));
      })
      .catch(function (error) {
        console.log("失败:"+error);
      });
    console.log("按钮被点击了！");
}

</script>

<template>
  <h1>{{ msg }}</h1>

  <div class="card">
    <button type="button" @click="count++">count is {{ count }}</button>
    <p>
      Edit
      <code>components/HelloWorld.vue</code> to test HMR
    </p>
  </div>

  <p>
    Check out
    <a href="https://vuejs.org/guide/quick-start.html#local" target="_blank"
      >create-vue</a
    >, the official Vue + Vite starter
  </p>
  <p>
    Install
    <a href="https://github.com/vuejs/language-tools" target="_blank">Volar</a>
    in your IDE for a better DX
  </p>
  <p class="read-the-docs">Click on the Vite and Vue logos to learn more</p>
  
  <button type="button" @click="testHttp">My Button </button>
</template>



<style scoped>
.read-the-docs {
  color: #888;
}
</style>

这里有两个按钮，一个按钮是点击后数字加一，一个是向后台请求http，并打印。

 ⑥. vite.config.ts

import { defineConfig } from 'vite'
import vue from '@vitejs/plugin-vue'

// https://vitejs.dev/config/
export default defineConfig({
  plugins: [vue()],
  server: {
    host: '127.0.0.1',
    port: 5172,
    open: true,
    proxy: {
        "/Api": {
            target: "127.0.0.1:8001",
            changeOrigin: true
        }
    }
  }
})

3.效果

 

posted @ 2024-02-27 11:24  朱小勇  阅读(184)  评论(0)  编辑  收藏  举报