前端vite+vue3结合后端node+koa——实现代码模板展示平台（支持模糊搜索+分页查询）

/*
 Navicat Premium Data Transfer
 Source Server         : yongma16.xyz
 Source Server Type    : MySQL
 Source Server Version : 80033
 Source Host           : yongma16.xyz:3306
 Source Schema         : threejs_data
 Target Server Type    : MySQL
 Target Server Version : 80033
 File Encoding         : 65001
 Date: 13/02/2024 23:07:30
*/
SET NAMES utf8mb4;
SET FOREIGN_KEY_CHECKS = 0;
-- ----------------------------
-- Table structure for product
-- ----------------------------
DROP TABLE IF EXISTS `product`;
CREATE TABLE `product`  (
  `id` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NOT NULL COMMENT 'id',
  `title` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NULL DEFAULT NULL COMMENT '标题',
  `content` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NULL DEFAULT NULL COMMENT '内容',
  `description` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NULL DEFAULT NULL COMMENT '描述',
  `type` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NULL DEFAULT NULL COMMENT '类型',
  `html_text` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NULL DEFAULT NULL COMMENT 'html内容',
  `img` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NULL DEFAULT NULL COMMENT '封面图片',
  `create_time` datetime(0) NULL DEFAULT NULL COMMENT '创建时间',
  `update_time` datetime(0) NULL DEFAULT NULL COMMENT '更新时间',
  `create_user` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NULL DEFAULT NULL COMMENT '创建用户',
  PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB CHARACTER SET = utf8mb4 COLLATE = utf8mb4_0900_ai_ci ROW_FORMAT = Dynamic;
SET FOREIGN_KEY_CHECKS = 1;

SELECT * FROM 表名
LIMIT 查询数量 OFFSET 偏移量;

SELECT * FROM 表名
LIMIT 5 OFFSET 10;

SELECT * FROM students WHERE name LIKE 'A%';

SELECT * FROM students WHERE name LIKE '%son';

SELECT * FROM students WHERE name LIKE '%an%';

SELECT * FROM students WHERE name LIKE '___';

const Router = require('koa-router');
const router = new Router();
const {execMysql}=require('../../utils/mysql/index')
// 获取product list
router.post('/product/list', async (ctx) => {
    try{
        // 解析参数
        const bodyParams =  ctx.request.body
        const {pageSize,page,name} = bodyParams;
        const start=Number(pageSize)*Number(page-1)
        const end=Number(pageSize)
        const search=await execMysql(`select * from product where title like '%${name}%' order by create_time desc limit ${start},${end};`);
        const searchTotal=await execMysql(`select count(1 ) as total from product where title like '%${name}%';`);
        ctx.body = {
            code: 200,
            data:search,
            total:searchTotal?searchTotal[0].total:0,
            msg: 'get product list success'};
    }
    catch(r){
        ctx.body = {
            code: 0,
            data:null,
            msg: JSON.stringify(r)};
    }
});

<script  lang="ts" setup>
    // @ts-ignore
    import {reactive,onMounted} from 'vue'
    // @ts-ignore
    import {getProductList} from '@/service/product/index.ts'
    // @ts-ignore
    const state:any=reactive({
        loading:false,
        title:'代码模板',
        name:'',
        productList:[],
        pageSize:3,
        page:1,
        total:0,
        pageSizeOptions:['3', '6', '9']
    })
    const searchProductAction=async ()=>{
        state.loading=true
        try{
            const res=await getProductList({
                name:state.name,
                pageSize:state.pageSize,
                page:state.page
            });
            console.log('res',res)
            state.productList=res.data.data
            state.total=res.data.total
        }
        catch (e) {
            console.error(e)
            state.productList=[]
            state.total=0
        }
        finally {
            state.loading=false
        }
    };
    const searchBtn=()=>{
        searchProductAction()
    }
    const changePage=(page,pageSize)=>{
        state.page=page
        state.pageSize=pageSize
        searchBtn()
    }
    onMounted(()=>{
        searchBtn()
    })
</script>
<template>
    <div>
        {{state.title}}
    </div>
    <div>
        <a-row>
            <a-col :span="12">
                <a-input v-model:value="state.name" placeholder="输入名称搜索" allowClear />
            </a-col>
            <a-col :span="12" style="padding-left: 20px">
                <a-button type="primary" @click="searchBtn">查询</a-button>
            </a-col>
        </a-row>
    </div>
    <div style="margin-top: 10px;margin-bottom: 10px">
        <a-spin :spinning="state.loading">
        <div v-for="(item,index) in state.productList" :key="index" style="display: inline-block;margin: 2px">
            <a-card hoverable style="width: 240px;">
                <template #cover>
                    <a-image :alt="item.title" :src="item.img" />
                </template>
                <a-card-meta :title="item.title">
                    <template #description>{{item.description}}</template>
                </a-card-meta>
            </a-card>
        </div>
            <div style="margin-top: 10px">
                <a-pagination showTotal showSizeChanger v-model:current="state.page" :total="state.total" :pageSize="state.pageSize" :pageSizeOptions="state.pageSizeOptions" @change="changePage"/>
            </div>
        </a-spin>
    </div>
</template>