koa-year v1.0.13

UTIL CONfig.js 一、 // token 秘钥 const secret = 'zxcvbnm123456'

//白名单

const whiteList = [/^\/myweb/,'/goods/type','/goods/detail','/goods/list',/^\/phone/,];


module.exports = {
    secret,
    whiteList
}

二、 IORedis.js const Redis = require('ioredis'); const redis = new Redis()

 function get(key) {
     return redis.get(key)
 }

 function set(key, time,val) {
     return redis.setex(key, time,val);
 }

 module.exports = {
     get,set
 }

三、 Jwt var jwt = require('jsonwebtoken'); var {secret} = require('./config'); // const secret = 'zxcvbnm123456'

// class JWT {
//     constructor(parameter) {
//     }
//      sign(userinfo) {
//         return jwt.sign(userinfo, secret, { expiresIn: '2h'})
//     }
//      verify(token) {
//         return jwt.verify(token, secret)
//     }
// }
function sign(userinfo) {
    return jwt.sign(userinfo, secret, { expiresIn: '2h'})
}
function verify(token) {
    return jwt.verify(token, secret)
}


module.exports = {
    sign,
    verify
}

List of goods

    const query = require('../db/query');

    //查询二级分类

    const selectType = ()=>{
        let sql = `select * from type_tab`;
        return query(sql)
    }

    //查询商品
    const selectGoods = (params)=>{
        /* 
            typeid  二级分类
            title  标题  模糊查询
            goodsid 商品 id   
            page count   分页查询
        */
        let sql = `select * from goods_tab `;

        if (params?.typeid || params?.title || params?.goodsid || params?.brandid ) {
            sql += ' where '
            
        }
        //根据分类查询
        if (params?.typeid ) {
            sql += ` typeid = ${params.typeid} `
        }
        //根据商品 id 查询
        if (params?.goodsid ) {
            sql += ` goodsid = ${params.goodsid} `
        }
        //根据品牌 id 查询
        if (params?.brandid ) {
            sql += ` brandid = '${params.brandid}' `
        }
        //模糊查询
        if (params?.title ) {
            sql += ` title like '%${params.title}%' `
        }
        //根据价格升序降序
        // select * from goods_tab order by price desc
        if (params?.desc == 1 ) { // desc  1  升序 2 降序
            sql += ` order by price `
        }else if (params?.desc == 2 ){
            sql += ` order by price desc`
        }
        //根据品牌查询
        if (params?.title ) {
            sql += ` title like '%${params.title}%' `
        }
        //根据品牌查询
        if (params?.page && params?.count) {
            sql += ` limit ${(params.page-1)*params.count},${params.count} `
        }
        console.log(sql);
        return query(sql)
    }
    const selectGoodsDetail = (params)=>{
        // 多表  两表联查
        // select * from 表1 inner join 表2  on  表1.articleid = 表二.tagid  where 表1.articleid = 10001
        //               join 拼接  
        // let sql = `select * from  comment_tab inner join detail_tab `
        // sql+=`on comment_tab.goodsid = detail_tab.goodsid where comment_tab.goodsid=${params.goodsid}`

        //多表   三表联查

        let sql = `select * from goods_tab as t1  inner join  comment_tab as t2 on t1.goodsid = t2.goodsid `
        sql += `inner join detail_tab as t3 on t1.goodsid=t3.goodsid `
        sql += `where t1.goodsid=${params.goodsid}`
        // console.log(sql);
        return query(sql)
    }
    //更新点赞状态

    const updateCommentZan = (params)=>{
        // update 表名  set  列名 = '内容'  where  userid = "标识值"
        let sql = `update comment_tab set zan = ${params.zan},userid = ${params.userid}  where id=${params.id}`
        console.log(sql);
        return query(sql)
    }

    const selectZan = ()=>{
        // update 表名  set  列名 = '内容'  where  userid = "标识值"
        let sql = `select * from comment_tab where zan=1`
        console.log(sql);
        return query(sql)
    }





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    const jwt = require('../util/jwt')
    const CartSer = require('../service/shoppingcart')
    const shoppingcartAdd = async ctx => {
        /* 
            1.获取前端传来的参数  goodsid  price  count
            2.根据 token  解析 userid
            3.sql 插入到购物车表
            4.返回加入购物车成功
        */

        //1
        let params = ctx.request.body;//{}
        //2 获取 token
        const token = ctx.request.header?.authorization.split(' ')[1];
        const userinfo = jwt.verify(token)
        console.log(userinfo);
        params.userid = userinfo.userid
        //3
        const obj = await CartSer.shoppingcartAdd(params)
        if (obj.affectedRows) {
            ctx.body = {
                code: 200,
                msg: '添加购物车成功!'
            }
            return
        }
        ctx.body = {
            code: 403,
            msg: '添加购物车失败!'
        }


    }
    //查询
    const shoppingcartSelect = async ctx => {
        /* 
            1.鉴权获取 userid
            2.SQL 查询  多表联查
            3.返回结果
        */
        //1 获取 token
        const token = ctx.request.header?.authorization.split(' ')[1];
        const { userid } = jwt.verify(token);
        //2
        const arr = await CartSer.shoppingcartSelect({ userid });
        ctx.body={
            code:200,
            arr
        }


    }
    //多项删除
    const shoppingcartDelete = async ctx=>{
        /* 
            1.获取前端传来的参数  购物车 id  ,拼接的字符串
            2.执行 sql 语句 多项删除
            3.返回结果
        */
    const params = ctx.query;

    const obj = await CartSer.shoppingcartDelete(params);
    ctx.body = {
        code:200,
        msg:'数据删除成功'
    }

    }

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注意！！！！ const phone = document.querySelector('.phone') const pwd = document.querySelector('.pwd')

//axios 二次封装
function AXIOS(url,data) {
    return new Promise((resolve, reject) => {
        axios.post(url,data).then(res=>{
            resolve(res)
        }).catch(err=>{
            reject(err)
        }) 
    }) 
}
function fnRegister(params) {
    let obj = {
        username:phone.value,
        password:pwd.value,
    }

    AXIOS('http://localhost:3000/register',obj).then(res=>{
        console.log(res);
    })
    
}

function loginin(params) {
    let obj = {
        username:phone.value,
        password:pwd.value,
    }

    AXIOS('http://localhost:3000/loginin',obj).then(res=>{
        console.log(res);
        if (res.data.token) {
            localStorage.setItem('token',res.data.token)
            document.querySelector('.div').innerHTML = res.data.token;
            // location.href = './userinfo.html'
            
        }
    })
    
}

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