SpringBoot整合Redis

SpringBoot项目使用idea创建

https://blog.youkuaiyun.com/w8827130/article/details/109934393 最简单SpringBoot项目创建

https://blog.youkuaiyun.com/w8827130/article/details/110458979 Windows环境安装Redis

项目结构

项目目录

 pom.xml

springboot的pom整合了redis

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.4.0</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.example</groupId>
    <artifactId>springbootredis</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>springbootredis</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

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

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

 application.yml

springboot中关于redis的配置

spring:
  redis:
    host: 127.0.0.1
    port: 6379
    password: 123456
    jedis:
      pool:
        max-active: 8
        max-wait: -1
        max-idle: 500
        min-idle: 0
    lettuce:
      shutdown-timeout: 0

字符串存储

RedisController.java

使用redisTemplate，存入key=myKey，value=myValue

package com.example.springbootredis.controller;

import com.example.springbootredis.pojo.User;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.annotation.Resource;

@RestController
public class RedisController {
    private static final Logger log = LoggerFactory.getLogger(RedisController.class);

    @Autowired
    private RedisTemplate redisTemplate;

    @RequestMapping("setRedisString")
    public String setRedisString() {
        redisTemplate.opsForValue().set("myKey","myValue");
        log.info(redisTemplate.opsForValue().get("myKey").toString());
        return redisTemplate.opsForValue().get("myKey").toString();
    }
}

请求接口

网页返回了接口存入的value值

redis中存储的myKey数据

 

实体类的存储

User.java

这里如果User没有实现Serializable接口，会报错 DefaultSerializer requires a Serializable payload but received an object of type [com.example.springbootredis.pojo.User]

package com.example.springbootredis.pojo;

import java.io.Serializable;

public class User implements Serializable {

    private String name;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }
}

RedisObjectController.java

package com.example.springbootredis.controller;

import com.example.springbootredis.pojo.User;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class RedisObjectController {
    private static final Logger log = LoggerFactory.getLogger(RedisObjectController.class);

    @Autowired
    private RedisTemplate redisTemplate;

    @RequestMapping("setRedisObject")
    public String setRedisObject() {
        User user = new User();
        user.setName("cuidaidai");
        redisTemplate.opsForValue().set("user",user);
        log.info(((User)(redisTemplate.opsForValue().get("user"))).getName());
        return ((User)(redisTemplate.opsForValue().get("user"))).getName();
    }
}

请求setRedisObject接口

网页返回User的name

redis中存储的user数据