要开始做前台部分(用户环境)

之前我们用的后台前端框架是vue-admin-template

这次的前台框架是用的NUXT

轮播图实现

显示课程和老师

redis缓存

NUXT

服务端渲染技术

解压guli_site

在这里我们使用的是成品,页面也基本写好

然后下载依赖:

开始运行:

npm rum dev

后面出错了,原因是错误的回车,换行,缩进,按照提示改成对应的缩进,就行(在_id.vue里重新改一下缩进)

启动成功:

目录结构

.nuxt 编译后的文件

assets 静态文件(css,img等)

compents 项目使用相关组件

layout 定义网页布局

middleware 中间件

node_modules 组件

pages 页面

nuxt.config.js 配置文件

首页面

下载幻灯片插件

需要固定版本

npm install vue-awesome-swiper@3.1.3

幻灯片配置(已配好)

静态资源(已配好)

复制default.vue页面

banner接口

放到service-cms

创建模块

service_cms

启动类:

package com.lkw.cmsservice;


import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.ComponentScan;

@SpringBootApplication
@ComponentScan(basePackages = {"com.lkw.*"})
@MapperScan("com.lkw.cmsservice.mapper")
public class CmsApplication {
    public static void main(String[] args) {

        SpringApplication.run(CmsApplication.class, args);
    }
}

application.properties

service_acl

添加数据库(前面加过了)

代码生成

用的mybatisX

实体类可能需要小修改,需要检查一下

表改成id长度32

加application.yml

server:
  port: 8004
spring:
  application:
    name: service-cms
  profiles:
    active: dev  #环境设置: dev,test,prod
  datasource:
    driver-class-name: com.mysql.cj.jdbc.Driver
    url: jdbc:mysql://localhost:3306/guli?serverTimezone=GMT%2B8
    username: root
    password: 148963
  jackson:
    date-format: yyyy-MM-dd HH:mm:ss
    time-zone: GMT+8
  cloud:
    nacos:
      discovery:
        server-addr: 192.168.199.100:8848 #服务地址

mybatis-plus:
  global-config:
    db-config:
      id-type: ASSIGN_UUID

相关接口

package com.lkw.cmsservice.controller;

import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.lkw.cmsservice.commonutils.R;
import com.lkw.cmsservice.entity.CrmBanner;
import com.lkw.cmsservice.service.CrmBannerService;
import io.swagger.annotations.ApiOperation;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;

/**
 * <p>
 * 首页banner表 前端控制器
 * </p>
 *
 * @author atguigu
 * @since 2020-08-10
 */
@RestController
@RequestMapping("/educms/banneradmin")
@CrossOrigin
public class BannerAdminController {
    @Autowired
    private CrmBannerService crmBannerService;
        //分页查询
    @GetMapping()
    public R pageBanner(@PathVariable long page, long limit){
        Page<CrmBanner> bannerPage = new Page<>(page,limit);
        IPage<CrmBanner> pages = crmBannerService.page(bannerPage, null);
        List<CrmBanner> records = pages.getRecords();
        long total = pages.getTotal();
        return R.ok().data("items",records).data("total",total);
    }

    //添加banner
    @PostMapping("addBanner")
    public R addBanner(@RequestBody CrmBanner crmBanner){
        crmBannerService.save(crmBanner);
        return R.ok();
    }

    //根据id获取Banner
    @ApiOperation(value = "获取Banner")
    @GetMapping("get/{id}")
    public R get(@PathVariable String id) {
        CrmBanner banner = crmBannerService.getById(id);
        return R.ok().data("item", banner);
    }

    //修改Banner
    @ApiOperation(value = "修改Banner")
    @PutMapping("update")
    public R updateById(@RequestBody CrmBanner banner) {
        crmBannerService.updateById(banner);
        return R.ok();
    }

    //根据id删除Banner
    @ApiOperation(value = "删除Banner")
    @DeleteMapping("remove/{id}")
    public R remove(@PathVariable String id) {
        crmBannerService.removeById(id);
        return R.ok();
    }

}

package com.lkw.cmsservice.controller;



import com.lkw.cmsservice.commonutils.R;
import com.lkw.cmsservice.entity.CrmBanner;
import com.lkw.cmsservice.service.CrmBannerService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;

/**
 * <p>
 * 首页banner表 前端控制器
 * </p>
 *
 * @author atguigu
 * @since 2020-08-10
 */
@RestController
@RequestMapping("/educms/bannerfront")
@CrossOrigin
public class BannerFrontController {
    @Autowired
    private CrmBannerService crmBannerService;

    //查询所有banner
    @GetMapping("getAllBanner")
    public R getAllBanner(){
        List<CrmBanner> List =crmBannerService.selectAllBanner();
        return R.ok().data("list",List);
    }
}

经典白写

impl

package com.lkw.cmsservice.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.lkw.cmsservice.entity.CrmBanner;
import com.lkw.cmsservice.service.CrmBannerService;
import com.lkw.cmsservice.mapper.CrmBannerMapper;
import org.springframework.cache.annotation.Cacheable;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.List;

/**
* @author 李可文
* @description 针对表【crm_banner(首页banner表)】的数据库操作Service实现
* @createDate 2022-11-27 11:54:34
*/
@Transactional
@Service
public class CrmBannerServiceImpl extends ServiceImpl<CrmBannerMapper, CrmBanner> implements CrmBannerService {

    @Cacheable(value = "banner",key = "'selectIndexList'")
    //查询所有banner
    @Override
    public List<CrmBanner> selectAllBanner() {
        //根据id降序排列，显示排列之后的前两条记录
        QueryWrapper<CrmBanner> bannerQueryWrapper = new QueryWrapper<>();
        bannerQueryWrapper.orderByDesc("id");
        //list拼接sql语句
        bannerQueryWrapper.last("limit 2");
        List<CrmBanner> list = baseMapper.selectList(null);
        return list;
    }
}

last方法

直接拼接到sql的最后

查询热门课程和名师的接口

package com.lkw.eduservice.controller.front;


import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.lkw.cmsservice.commonutils.R;
import com.lkw.eduservice.entity.EduCourse;
import com.lkw.eduservice.entity.EduTeacher;
import com.lkw.eduservice.service.EduCourseService;
import com.lkw.eduservice.service.EduTeacherService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;

@CrossOrigin
@RestController
@RequestMapping("/eduservice/indexfront")
public class IndexFrontController {
    //查询

    @Autowired
    EduCourseService eduCourseService;

    @Autowired
    private EduTeacherService eduTeacherService;

    //查询前八条记录
    @GetMapping("index")
    public R index(){
        QueryWrapper<EduCourse> courseQueryWrapper = new QueryWrapper<>();
        courseQueryWrapper.orderByDesc("id");
        courseQueryWrapper.last("limit 8");
        List<EduCourse> courseList = eduCourseService.list(courseQueryWrapper);
 
        //查询前四个名师
        QueryWrapper<EduTeacher> teacherQueryWrapper = new QueryWrapper<>();
        teacherQueryWrapper.orderByDesc("id");
        teacherQueryWrapper.last("limit 4");
        List<EduTeacher> teacherList = eduTeacherService.list(teacherQueryWrapper);

        return R.ok().data("eduList",courseList).data("teacherList",teacherList);
    }
}

前端banner

下载axios

封装axios

api

banner.js

import request from '@/utils/request'
export default{
  getListBanner() {
    return request({
      url: 'http://localhost:8004/educms/bannerfront/getAllBanner',
      method: 'get'
    })
  }
}

index.vue

<template>

  <div>
    <!-- 幻灯片 开始 -->
    <div v-swiper:mySwiper="swiperOption">
      <div class="swiper-wrapper">
        <div v-for="banner in bannerList" :key="banner.id" class="swiper-slide" style="background: #040B1B;">
          <a :href="banner.linkUrl" target="_blank">
            <img :src="banner.imageUrl" :alt="banner.title">
          </a>
        </div>
      </div>
      <div class="swiper-pagination swiper-pagination-white"/>
      <div slot="button-prev" class="swiper-button-prev swiper-button-white"/>
      <div slot="button-next" class="swiper-button-next swiper-button-white"/>
    </div>
    <!-- 幻灯片 结束 -->

    <div id="aCoursesList">
      <!-- 网校课程 开始 -->
      <div>
        <section class="container">
          <header class="comm-title">
            <h2 class="tac">
              <span class="c-333">热门课程</span>
            </h2>
          </header>
          <div>
            <article class="comm-course-list">
              <ul id="bna" class="of">
                <li>
                  <div class="cc-l-wrap">
                    <section class="course-img">
                      <img
                        src="~/assets/photo/course/01.jpg"
                        class="img-responsive"
                        alt="听力口语"
                      >
                      <div class="cc-mask">
                        <a href="#" title="开始学习" class="comm-btn c-btn-1">开始学习</a>
                      </div>
                    </section>
                    <h3 class="hLh30 txtOf mt10">
                      <a href="#" title="听力口语" class="course-title fsize18 c-333">听力口语</a>
                    </h3>
                    <section class="mt10 hLh20 of">
                      <span class="fr jgTag bg-green">
                        <i class="c-fff fsize12 f-fA">免费</i>
                      </span>
                      <span class="fl jgAttr c-ccc f-fA">
                        <i class="c-999 f-fA">9634人学习</i>
                        |
                        <i class="c-999 f-fA">9634评论</i>
                      </span>
                    </section>
                  </div>
                </li>
                <li>
                  <div class="cc-l-wrap">
                    <section class="course-img">
                      <img
                        src="~/assets/photo/course/02.jpg"
                        class="img-responsive"
                        alt="Java精品课程"
                      >
                      <div class="cc-mask">
                        <a href="#" title="开始学习" class="comm-btn c-btn-1">开始学习</a>
                      </div>
                    </section>
                    <h3 class="hLh30 txtOf mt10">
                      <a href="#" title="Java精品课程" class="course-title fsize18 c-333">Java精品课程</a>
                    </h3>
                    <section class="mt10 hLh20 of">
                      <span class="fr jgTag bg-green">
                        <i class="c-fff fsize12 f-fA">免费</i>
                      </span>
                      <span class="fl jgAttr c-ccc f-fA">
                        <i class="c-999 f-fA">501人学习</i>
                        |
                        <i class="c-999 f-fA">501评论</i>
                      </span>
                    </section>
                  </div>
                </li>
                <li>
                  <div class="cc-l-wrap">
                    <section class="course-img">
                      <img
                        src="~/assets/photo/course/03.jpg"
                        class="img-responsive"
                        alt="C4D零基础"
                      >
                      <div class="cc-mask">
                        <a href="#" title="开始学习" class="comm-btn c-btn-1">开始学习</a>
                      </div>
                    </section>
                    <h3 class="hLh30 txtOf mt10">
                      <a href="#" title="C4D零基础" class="course-title fsize18 c-333">C4D零基础</a>
                    </h3>
                    <section class="mt10 hLh20 of">
                      <span class="fr jgTag bg-green">
                        <i class="c-fff fsize12 f-fA">免费</i>
                      </span>
                      <span class="fl jgAttr c-ccc f-fA">
                        <i class="c-999 f-fA">300人学习</i>
                        |
                        <i class="c-999 f-fA">300评论</i>
                      </span>
                    </section>
                  </div>
                </li>
                <li>
                  <div class="cc-l-wrap">
                    <section class="course-img">
                      <img
                        src="~/assets/photo/course/04.jpg"
                        class="img-responsive"
                        alt="数学给宝宝带来的兴趣"
                      >
                      <div class="cc-mask">
                        <a href="#" title="开始学习" class="comm-btn c-btn-1">开始学习</a>
                      </div>
                    </section>
                    <h3 class="hLh30 txtOf mt10">
                      <a href="#" title="数学给宝宝带来的兴趣" class="course-title fsize18 c-333">数学给宝宝带来的兴趣</a>
                    </h3>
                    <section class="mt10 hLh20 of">
                      <span class="fr jgTag bg-green">
                        <i class="c-fff fsize12 f-fA">免费</i>
                      </span>
                      <span class="fl jgAttr c-ccc f-fA">
                        <i class="c-999 f-fA">256人学习</i>
                        |
                        <i class="c-999 f-fA">256评论</i>
                      </span>
                    </section>
                  </div>
                </li>
                <li>
                  <div class="cc-l-wrap">
                    <section class="course-img">
                      <img
                        src="~/assets/photo/course/05.jpg"
                        class="img-responsive"
                        alt="零基础入门学习Python课程学习"
                      >
                      <div class="cc-mask">
                        <a href="#" title="开始学习" class="comm-btn c-btn-1">开始学习</a>
                      </div>
                    </section>
                    <h3 class="hLh30 txtOf mt10">
                      <a
                        href="#"
                        title="零基础入门学习Python课程学习"
                        class="course-title fsize18 c-333"
                      >零基础入门学习Python课程学习</a>
                    </h3>
                    <section class="mt10 hLh20 of">
                      <span class="fr jgTag bg-green">
                        <i class="c-fff fsize12 f-fA">免费</i>
                      </span>
                      <span class="fl jgAttr c-ccc f-fA">
                        <i class="c-999 f-fA">137人学习</i>
                        |
                        <i class="c-999 f-fA">137评论</i>
                      </span>
                    </section>
                  </div>
                </li>
                <li>
                  <div class="cc-l-wrap">
                    <section class="course-img">
                      <img
                        src="~/assets/photo/course/06.jpg"
                        class="img-responsive"
                        alt="MySql从入门到精通"
                      >
                      <div class="cc-mask">
                        <a href="#" title="开始学习" class="comm-btn c-btn-1">开始学习</a>
                      </div>
                    </section>
                    <h3 class="hLh30 txtOf mt10">
                      <a href="#" title="MySql从入门到精通" class="course-title fsize18 c-333">MySql从入门到精通</a>
                    </h3>
                    <section class="mt10 hLh20 of">
                      <span class="fr jgTag bg-green">
                        <i class="c-fff fsize12 f-fA">免费</i>
                      </span>
                      <span class="fl jgAttr c-ccc f-fA">
                        <i class="c-999 f-fA">125人学习</i>
                        |
                        <i class="c-999 f-fA">125评论</i>
                      </span>
                    </section>
                  </div>
                </li>
                <li>
                  <div class="cc-l-wrap">
                    <section class="course-img">
                      <img
                        src="~/assets/photo/course/07.jpg"
                        class="img-responsive"
                        alt="搜索引擎优化技术"
                      >
                      <div class="cc-mask">
                        <a href="#" title="开始学习" class="comm-btn c-btn-1">开始学习</a>
                      </div>
                    </section>
                    <h3 class="hLh30 txtOf mt10">
                      <a href="#" title="搜索引擎优化技术" class="course-title fsize18 c-333">搜索引擎优化技术</a>
                    </h3>
                    <section class="mt10 hLh20 of">
                      <span class="fr jgTag bg-green">
                        <i class="c-fff fsize12 f-fA">免费</i>
                      </span>
                      <span class="fl jgAttr c-ccc f-fA">
                        <i class="c-999 f-fA">123人学习</i>
                        |
                        <i class="c-999 f-fA">123评论</i>
                      </span>
                    </section>
                  </div>
                </li>
                <li>
                  <div class="cc-l-wrap">
                    <section class="course-img">
                      <img
                        src="~/assets/photo/course/08.jpg"
                        class="img-responsive"
                        alt="20世纪西方音乐"
                      >
                      <div class="cc-mask">
                        <a href="#" title="开始学习" class="comm-btn c-btn-1">开始学习</a>
                      </div>
                    </section>
                    <h3 class="hLh30 txtOf mt10">
                      <a href="#" title="20世纪西方音乐" class="course-title fsize18 c-333">20世纪西方音乐</a>
                    </h3>
                    <section class="mt10 hLh20 of">
                      <span class="fr jgTag bg-green">
                        <i class="c-fff fsize12 f-fA">免费</i>
                      </span>
                      <span class="fl jgAttr c-ccc f-fA">
                        <i class="c-999 f-fA">34人学习</i>
                        |
                        <i class="c-999 f-fA">34评论</i>
                      </span>
                    </section>
                  </div>
                </li>
              </ul>
              <div class="clear"/>
            </article>
            <section class="tac pt20">
              <a href="#" title="全部课程" class="comm-btn c-btn-2">全部课程</a>
            </section>
          </div>
        </section>
      </div>
      <!-- /网校课程 结束 -->
      <!-- 网校名师 开始 -->
      <div>
        <section class="container">
          <header class="comm-title">
            <h2 class="tac">
              <span class="c-333">名师大咖</span>
            </h2>
          </header>
          <div>
            <article class="i-teacher-list">
              <ul class="of">
                <li>
                  <section class="i-teach-wrap">
                    <div class="i-teach-pic">
                      <a href="/teacher/1" title="陈伟霆">
                        <img alt="陈伟霆" src="~/assets/photo/teacher/04.jpg" width="142">
                      </a>
                    </div>
                    <div class="mt10 hLh30 txtOf tac">
                      <a href="/teacher/1" title="陈伟霆" class="fsize18 c-666">陈伟霆</a>
                    </div>
                  </section>
                </li>
                <li>
                  <section class="i-teach-wrap">
                    <div class="i-teach-pic">
                      <a href="/teacher/1" title="周润发">
                        <img alt="周润发" src="~/assets/photo/teacher/01.jpg" width="142">
                      </a>
                    </div>
                    <div class="mt10 hLh30 txtOf tac">
                      <a href="/teacher/1" title="周润发" class="fsize18 c-666">周润发</a>
                    </div>
                  </section>
                </li>
                <li>
                  <section class="i-teach-wrap">
                    <div class="i-teach-pic">
                      <a href="/teacher/1" title="周杰伦">
                        <img alt="周杰伦" src="~/assets/photo/teacher/02.jpg" width="142">
                      </a>
                    </div>
                    <div class="mt10 hLh30 txtOf tac">
                      <a href="/teacher/1" title="周杰伦" class="fsize18 c-666">周杰伦</a>
                    </div>
                  </section>
                </li>
                <li>
                  <section class="i-teach-wrap">
                    <div class="i-teach-pic">
                      <a href="/teacher/1" title="刘德华">
                        <img alt="刘德华" src="~/assets/photo/teacher/03.jpg" width="142">
                      </a>
                    </div>
                    <div class="mt10 hLh30 txtOf tac">
                      <a href="/teacher/1" title="刘德华" class="fsize18 c-666">刘德华</a>
                    </div>
                  </section>
                </li>
              </ul>
              <div class="clear"/>
            </article>
            <section class="tac pt20">
              <a href="teacher" title="全部讲师" class="comm-btn c-btn-2">全部讲师</a>
            </section>
          </div>
        </section>
      </div>
      <!-- /网校名师 结束 -->
    </div>
  </div>
</template>

<script>
import banner from '@/api/banner'

export default {
  data() {
    return {
      swiperOption: {
        // 配置分页
        pagination: {
          el: '.swiper-pagination'// 分页的dom节点
        },
        // 配置导航
        navigation: {
          nextEl: '.swiper-button-next', // 下一页dom节点
          prevEl: '.swiper-button-prev'// 前一页dom节点
        }
      },
      bannerList: []
    }
  },
  created() {
    // 调用查询
    banner.getListBanner()
      .then(response => {
        this.bannerList = response.data.list
      })
  },
  methods: {
    // 查询banner数据
  }
}
</script>

alt:光标放置显示(相当于名字了)

href:超链接地址

src:地址

启动效果

没有图,可能老师没交钱,我们改改数据库就行

换了数据库之后:

前端好像没加自适应,先不管了

热门课程和名师数据显示

为了加快进度,前端先不自己写了,我在github上直接导入了一个

index.js

import request from '@/utils/request'
export default{
  getIndexData() {
    return request({
      url: 'http://localhost:8001//eduservice/indexfront/index',
      method: 'get'
    })
  }
}

热门课程删掉部分

• v-for遍历eduList

  后端报错要检查nacos配置和nacos有没起来

  Redis解放mysql

  添加依赖:

          <!-- redis -->
          <dependency>
              <groupId>org.springframework.boot</groupId>
              <artifactId>spring-boot-starter-data-redis</artifactId>
          </dependency>
  
          <!-- spring2.X集成redis所需common-pool2-->
          <dependency>
              <groupId>org.apache.commons</groupId>
              <artifactId>commons-pool2</artifactId>
              <version>2.6.0</version>
          </dependency>
  

  创建redis配置类到common里

  package com.lkw.servicebase;
  
  import com.fasterxml.jackson.annotation.JsonAutoDetect;
  import com.fasterxml.jackson.annotation.PropertyAccessor;
  import com.fasterxml.jackson.databind.ObjectMapper;
  import org.springframework.cache.CacheManager;
  import org.springframework.cache.annotation.CachingConfigurerSupport;
  import org.springframework.cache.annotation.EnableCaching;
  import org.springframework.context.annotation.Bean;
  import org.springframework.context.annotation.Configuration;
  import org.springframework.data.redis.cache.RedisCacheConfiguration;
  import org.springframework.data.redis.cache.RedisCacheManager;
  import org.springframework.data.redis.connection.RedisConnectionFactory;
  import org.springframework.data.redis.core.RedisTemplate;
  import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
  import org.springframework.data.redis.serializer.RedisSerializationContext;
  import org.springframework.data.redis.serializer.RedisSerializer;
  import org.springframework.data.redis.serializer.StringRedisSerializer;
  
  import java.time.Duration;
  
  @EnableCaching
  @Configuration
  public class RedisConfig extends CachingConfigurerSupport {
  
      @Bean
      public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory factory) {
          RedisTemplate<String, Object> template = new RedisTemplate<>();
          RedisSerializer<String> redisSerializer = new StringRedisSerializer();
          Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);
          ObjectMapper om = new ObjectMapper();
          om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
          om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
          jackson2JsonRedisSerializer.setObjectMapper(om);
          template.setConnectionFactory(factory);
          //key序列化方式
          template.setKeySerializer(redisSerializer);
          //value序列化
          template.setValueSerializer(jackson2JsonRedisSerializer);
          //value hashmap序列化
          template.setHashValueSerializer(jackson2JsonRedisSerializer);
          return template;
      }
  
      @Bean
      public CacheManager cacheManager(RedisConnectionFactory factory) {
          RedisSerializer<String> redisSerializer = new StringRedisSerializer();
          Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);
          //解决查询缓存转换异常的问题
          ObjectMapper om = new ObjectMapper();
          om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
          om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
          jackson2JsonRedisSerializer.setObjectMapper(om);
          // 配置序列化（解决乱码的问题）,过期时间600秒
          RedisCacheConfiguration config = RedisCacheConfiguration.defaultCacheConfig()
                  .entryTtl(Duration.ofSeconds(600))
                  .serializeKeysWith(RedisSerializationContext.SerializationPair.fromSerializer(redisSerializer))
                  .serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(jackson2JsonRedisSerializer))
                  .disableCachingNullValues();
          RedisCacheManager cacheManager = RedisCacheManager.builder(factory)
                  .cacheDefaults(config)
                  .build();
          return cacheManager;
      }
  }
  
  

  注解:@cacheable

  加到api方法上,

  页面调用方法首先查redis ,redis没有再查后面的(mysql之类的)然后放到redis里

  注意导报

  注意key有两个引号

   @Cacheable(value = "banner",key = "'selectIndexList'")
  

  启动redis

  连接redis可能的问题:

  防火墙没关

  配置文件注释掉 #127.0.0.1

  修改protected-mode no

  yml注释

  spring:
    redis:
      host: 192.168.199.100
      port: 6379
      database: 0
      timeout: 1800000
      password: 123456
      lettuce:
        pool:
          max-active: 20
          max-wait: -1
          #最大阻塞时间
          max-idle: 5
          min-idle: 0
  
  

  controller不能加这个注解