SpringBoot整合redis

项目上传到gitee: https://gitee.com/gangye/springboot_redis

注意是框架中的Spring Data Redis操作Redis（前提先启动redis）

此处我使用windows本地的redis服务

在redis的目录下cmd指令

启动成功

1.创建一个maven工程(也可使用idea工具结合Springboot模板创建一个项目)

在pom文件中引入相关依赖

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.1.5.RELEASE</version>
</parent>

<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>

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

    <!-- 在此处引入热部署，实体类使用@Data注解就不用了重写getter以及setter方法 -->
    <dependency>
        <groupId>org.projectlombok</groupId>
        <artifactId>lombok</artifactId>
    </dependency>
</dependencies>

2.创建实体类(实体类必须序列化，不然无法存储到redis中)

import lombok.Data;

import java.io.Serializable;
import java.util.Date;

/**
 * @Classname Student
 * @Description TODO
 * @Created by gangye
 */
@Data
public class Student implements Serializable {
    private Integer id;

    private String name;

    private Double score;

    private Date birthday;
}

3.创建控制器

package com.gangye.controller;

import com.gangye.entity.Student;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.*;

/**
 * @Classname StudentHandler
 * @Description TODO
 * @Created by gangye
 */
@RestController
public class StudentHandler {

    @Autowired
    private RedisTemplate redisTemplate;

    @PostMapping("/set")
    public void set(@RequestBody Student student){
        redisTemplate.opsForValue().set("student",student);
    }

    @GetMapping("/get/{key}")
    public Student get(@PathVariable("key") String key){
        return (Student) redisTemplate.opsForValue().get(key);
    }

    @DeleteMapping("/delete/{key}")
    public boolean delete(@PathVariable("key") String key){
        redisTemplate.delete(key);
        return redisTemplate.hasKey(key);
    }
}

4.创建配置文件application.yml

此处使用本机的redis服务，所以host是localhost，redis默认端口号是6379，我的redis没有设置密码，需要的添加相应的配置即可

5.创建启动类，启动应用

package com.gangye;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

/**
 * @Classname Application
 * @Description TODO
 * @Created by gangye
 */
@SpringBootApplication
public class Application {
    public static void main(String[] args) {
        SpringApplication.run(Application.class,args);
    }
}

Redis5中数据类型

分别创建路由，结合postman工具测试

1.字符串

@GetMapping("/stringType")
public String stringTypeTest(){
    redisTemplate.opsForValue().set("str","helloWorld");
    String s = (String) redisTemplate.opsForValue().get("str");
    return s;
}

2.列表

@GetMapping("/listType")
public List<String> listTypeTest(){
    ListOperations<String,String> listOperations = redisTemplate.opsForList();
    listOperations.leftPush("list","hello");
    listOperations.leftPush("list","world");
    listOperations.leftPush("list","java");
    List<String> list =  listOperations.range("list",0,2);
    return list;
}

3.集合(set的值如同java中的set一样不能重复)

@GetMapping("/setType")
public Set<String> setTypeTest(){
    SetOperations<String,String> setOperations = redisTemplate.opsForSet();
    setOperations.add("set","hello");
    setOperations.add("set","hello");
    setOperations.add("set","world");
    setOperations.add("set","world");
    setOperations.add("set","java");
    Set<String> set = setOperations.members("set");
    return set;
}

4.有序集合(同样不能重复)

@GetMapping("/zsetType")
public Set<String> zsetTypeTest(){
    ZSetOperations<String,String> zSetOperations = redisTemplate.opsForZSet();
    zSetOperations.add("zset","hello",1);
    zSetOperations.add("zset","world",2);
    zSetOperations.add("zset","java",3);
    Set<String> set = zSetOperations.range("set",0,2);
    return set;
}

5.hash

hashMap key value

hashOperations key hashkey value

key是每一组数据的ID，hashkey和value是一组完整的HashMap数据，通过key来区分不同的HashMap。

@GetMapping("/hashType")
public void hashTypeTest(){
    HashOperations<String,String,String> hashOperations = redisTemplate.opsForHash();
    hashOperations.put("key","hashKey","hello");
    System.out.println(hashOperations.get("key","hashkey"));
}