PHP與Vue：如何實現會員積分的積分商城購物

CREATE TABLE `members` (
   `id` INT(11) NOT NULL AUTO_INCREMENT,
   `name` VARCHAR(50) NOT NULL,
   `points` INT(11) NOT NULL DEFAULT '0',
   PRIMARY KEY (`id`)
);

<?php
// 连接数据库
$conn = mysqli_connect("localhost", "username", "password", "database");

if (!$conn) {
   die("连接失败: " . mysqli_connect_error());
}

// 获取会员积分信息
$sql = "SELECT * FROM members WHERE id = " . $_GET['memberId'];
$result = mysqli_query($conn, $sql);

if (mysqli_num_rows($result) > 0) {
   // 输出会员积分信息
   while($row = mysqli_fetch_assoc($result)) {
      echo "会员ID: " . $row['id'] . ", 积分: " . $row['points'];
   }
} else {
   echo "会员不存在";
}

// 关闭连接
mysqli_close($conn);
?>

<?php
// 连接数据库
$conn = mysqli_connect("localhost", "username", "password", "database");

if (!$conn) {
   die("连接失败: " . mysqli_connect_error());
}

// 更新会员积分
$sql = "UPDATE members SET points = points - " . $_POST['points'] . " WHERE id = " . $_POST['memberId'];

if (mysqli_query($conn, $sql)) {
   echo "积分更新成功";
} else {
   echo "积分更新失败: " . mysqli_error($conn);
}

// 关闭连接
mysqli_close($conn);
?>

vue create point-mall

cd point-mall

<template>
   <div>
      <h1>会员积分商城</h1>
      <p>当前积分: {{ points }}</p>
      <h2>商品列表：</h2>
      <ul>
         <li v-for="item in items" :key="item.id">
            {{ item.name }} - {{ item.points }}积分
            <button @click="exchange(item)">兑换</button>
         </li>
      </ul>
   </div>
</template>

<script>
export default {
   data() {
      return {
         points: 0,
         items: [
            { id: 1, name: '商品1', points: 10 },
            { id: 2, name: '商品2', points: 20 },
            { id: 3, name: '商品3', points: 30 }
         ]
      };
   },
   methods: {
      exchange(item) {
         // 发送POST请求更新积分
         fetch('/api/update_points', {
            method: 'POST',
            body: JSON.stringify({
               memberId: 1, // 替换为实际会员ID
               points: item.points
            }),
            headers: {
               'Content-Type': 'application/json'
            }
         })
         .then(response => response.json())
         .then(data => {
            if (data.success) {
               alert('兑换成功');
               // 更新积分
               this.points -= item.points;
            } else {
               alert('兑换失败');
            }
         })
         .catch(error => {
            console.error('错误:', error);
         });
      }
   },
   mounted() {
      // 获取会员积分信息
      fetch('/api/get_points?memberId=1') // 替换为实际会员ID
         .then(response => response.text())
         .then(data => {
            this.points = data;
         })
         .catch(error => {
            console.error('错误:', error);
         });
   }
};
</script>

import Home from './Home.vue';
import VueRouter from 'vue-router';

Vue.use(VueRouter);

const router = new VueRouter({
   routes: [
      { path: '/', component: Home }
   ]
});

new Vue({
   router,
   render: h => h(Home)
}).$mount('#app');

npm run serve