SpringBoot---------整合Redis-易微帮

第一步：引入依赖

        <!--SpringDataRedis-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
        </dependency>

        <!--common-pool-->
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-pool2</artifactId>
        </dependency>

        <!--Jackson依赖-->
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
        </dependency>

第二步：配置Redis信息

spring:
  datasource:
    driver-class-name: com.mysql.cj.jdbc.Driver
    url: jdbc:mysql://192.168.136.132/mydb
    username: root
    password: 1234
    type: com.alibaba.druid.pool.DruidDataSource
    
    
  redis:
    database: 0
    host: 192.168.136.132
    port: 6379
    password: pz030812...
    lettuce:
      pool:
        max-active: 8
        max-idle: 8
        min-idle: 0
        max-wait: 100ms

第三步：选择Spring Data Redis进行操作Redis数据库

①操作String类型数据（用的少）

@Autowired
private StringRedisTemplate stringRedisTemplate;

@GetMapping("/redismessge")
    public JsonResult Redismsg(){
        //操作String数据

        //增，改
        stringRedisTemplate.opsForValue().set("jxxy","计科一班");
        //查
        String jxxy = stringRedisTemplate.opsForValue().get("jxxy");
        System.out.println("jxxy = " + jxxy);
        //删
        stringRedisTemplate.opsForValue().getAndDelete("jxxy");
        return new JsonResult();
    }

②操作Object类型数据（重要！！！）

    @Autowired
    private StringRedisTemplate stringRedisTemplate;
    @Autowired
    private RedisTemplate redisTemplate;

    //序列化工具
    private static final ObjectMapper mapper= new ObjectMapper();

    @PostMapping("/redismessge_1")
    public JsonResult Redismsg_1(@RequestBody Student student) throws JsonProcessingException {

        //使用自动序列化
        redisTemplate.opsForValue().set("jxxy_01",student);

        Object jxxy_01 = redisTemplate.opsForValue().get("jxxy_01");
        System.out.println("jxxy_01 = " + jxxy_01);


        //手动序列化
        String json = mapper.writeValueAsString(student);
        stringRedisTemplate.opsForValue().set("jxxy_02",json);

        json = stringRedisTemplate.opsForValue().get("jxxy_02");
        Student jxxy_02 = mapper.readValue(json, Student.class);
        System.out.println("jxxy_02 = " + jxxy_02);


        return new JsonResult();
    }

postman发送请求：

idea输出数据：

注：自动序列化和手动序列化的区别：如果单在java客户端看的话，二者并无明显区别，但是从Redis数据库中看的话就会发现在自动序列化的方式在redis数据库中每个数据前面都会增加一串地址，而手动的则是清晰的数据；而且使用Redistemplate时，对象类要加 implements Serializable

先看自动序列化redis的存储情况：