【spring-boot】Redis的整合与使用详解

在pom.xml中添加依赖

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
            <version>2.2.1.RELEASE</version>
            <exclusions>
                <exclusion>
                    <groupId>io.lettuce</groupId>
                    <artifactId>lettuce-core</artifactId>
                </exclusion>
            </exclusions>
        </dependency>

        <dependency>
            <groupId>redis.clients</groupId>
            <artifactId>jedis</artifactId>
            <version>3.1.0</version>
        </dependency>

添加配置文件 appliaction.yml

server:
  port: 8090
  servlet:
    context-path: /springboot

mybatis:
  # 对应实体类的包名
  type-aliases-package: com.komiles.study.domain
  mapper-locations: classpath:mybatis/mapper/*.xml
  config-location: classpath:mybatis/mybatis-config.xml


spring:
  datasource:
    url: jdbc:mysql://127.0.0.1:3306/komo?characterEncoding=utf-8
    username: root
    password: 123456
    driver-class-name: com.mysql.cj.jdbc.Driver

  redis:
    database: 0
    host: 127.0.0.1
    port: 6379
    jedis:
      pool:
        max-active: 8
        max-idle: 8
        max-wait: 1ms
        min-idle: 0

因为我的Redis没有设置密码，所以这个地方也没加密码。

新建User实体对象 User.java

package com.komiles.study.domain;

import java.io.Serializable;
import lombok.Data;

@Data
public class User implements Serializable {
    private Integer id;

    private String username;

    private String password;
}

新建Controller测试入口 RedisTestController.java

package com.komiles.study.controller;

import com.komiles.study.domain.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.data.redis.core.ValueOperations;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

/**
 * @author [email protected]
 * @date 2020-04-02 14:22
 */
@RequestMapping("/redis")
@RestController
public class RedisTestController {

    @Autowired
    RedisTemplate redisTemplate; // 对象Redis实例

    @Autowired
    StringRedisTemplate stringRedisTemplate; // 字符串Redis实例


    @GetMapping("/strTest")
    public String redisStrTest()
    {
        ValueOperations<String,String> valueOperations = stringRedisTemplate.opsForValue();
        valueOperations.set("name", "hello world");

        String value = valueOperations.get("name");
        return value;
    }

    @GetMapping("/objTest")
    public User redisObjTest()
    {
        ValueOperations valueOperations = redisTemplate.opsForValue();
        User user = new User();
        user.setId(1111);
        user.setUsername("哈哈哈");
        user.setPassword("123456");
        valueOperations.set("user_obj", user);
        return (User) valueOperations.get("user_obj");
    }
}

访问地址

• http://127.0.0.1:8090/springboot/redis/objTest

注意事项：实体类中，需要实现接口 Serializable，不然在设置对象时，会报错。

参考地址：https://www.hangge.com/blog/cache/detail_2587.html