springboot reddison 引单机模式

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mob64ca1418736f 2024-11-28 20:18:34

文章标签 redis spring boot java spring xml 文章分类 架构后端开发

1.pom.xml

<?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>2.2.2.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.mcy</groupId>
    <artifactId>redis-demo</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>redis-demo</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-data-redis</artifactId>
        </dependency>
        <dependency>
            <groupId>org.redisson</groupId>
            <artifactId>redisson</artifactId>
            <version>3.5.0</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.apiguardian</groupId>
            <artifactId>apiguardian-api</artifactId>
            <version>1.1.0</version>
        </dependency>
    </dependencies>

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

</project>

2.配置文件

server.port=80
server.servlet.context-path=/


spring.redis.host=localhost

spring.redis.port=6520

spring.redis.password=TaiJi@!@#$

spring.redis.database=0

spring.redis.jedis.pool.max-wait=10000

spring.redis.jedis.pool.max-active=100

spring.redis.jedis.pool.max-idle=20

spring.redis.jedis.pool.min-idle=0

spring.redis.timeout=3000

config类

package com.mcy.redisdemo.config;

import org.redisson.Redisson;
import org.redisson.api.RedissonClient;
import org.redisson.client.codec.StringCodec;
import org.redisson.config.Config;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
public class RedissonConfig {

    @Bean
    public RedissonClient getRedisson(){
        Config config = new Config();
        //单机模式  依次设置redis地址和密码
        config.useSingleServer().
                setAddress("redis://127.0.0.1:6520").
                setPassword("TaiJi@!@#$");
        config.setCodec(new StringCodec());
        return Redisson.create(config);
    }
}

package com.mcy.redisdemo.config;

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
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.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.*;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;

/**
 * redis配置类
 */
@Configuration
@EnableCaching
public class RedisConfig extends CachingConfigurerSupport {

    /**
     * retemplate相关配置
     * @param factory
     * @return
     */
    @Bean
    public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory factory) {

        RedisTemplate<String, Object> template = new RedisTemplate<>();
        // 配置连接工厂
        template.setConnectionFactory(factory);

        //使用Jackson2JsonRedisSerializer来序列化和反序列化redis的value值（默认使用JDK的序列化方式）
        Jackson2JsonRedisSerializer jacksonSeial = new Jackson2JsonRedisSerializer(Object.class);

        ObjectMapper om = new ObjectMapper();
        // 指定要序列化的域，field,get和set,以及修饰符范围，ANY是都有包括private和public
        om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
        // 指定序列化输入的类型，类必须是非final修饰的，final修饰的类，比如String,Integer等会跑出异常
        om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
        jacksonSeial.setObjectMapper(om);

        // 值采用json序列化
        template.setValueSerializer(jacksonSeial);
        //使用StringRedisSerializer来序列化和反序列化redis的key值
        template.setKeySerializer(new StringRedisSerializer());

        // 设置hash key 和value序列化模式
        template.setHashKeySerializer(new StringRedisSerializer());
        template.setHashValueSerializer(jacksonSeial);
        template.afterPropertiesSet();
        //设置事务
        template.setEnableTransactionSupport(true);

        return template;
    }

    /**
     * 对hash类型的数据操作
     *
     * @param redisTemplate
     * @return
     */
    @Bean
    public HashOperations<String, String, Object> hashOperations(RedisTemplate<String, Object> redisTemplate) {
        return redisTemplate.opsForHash();
    }

    /**
     * 对redis字符串类型数据操作
     *
     * @param redisTemplate
     * @return
     */
    @Bean
    public ValueOperations<String, Object> valueOperations(RedisTemplate<String, Object> redisTemplate) {
        return redisTemplate.opsForValue();
    }

    /**
     * 对链表类型的数据操作
     *
     * @param redisTemplate
     * @return
     */
    @Bean
    public ListOperations<String, Object> listOperations(RedisTemplate<String, Object> redisTemplate) {
        return redisTemplate.opsForList();
    }

    /**
     * 对无序集合类型的数据操作
     *
     * @param redisTemplate
     * @return
     */
    @Bean
    public SetOperations<String, Object> setOperations(RedisTemplate<String, Object> redisTemplate) {
        return redisTemplate.opsForSet();
    }

    /**
     * 对有序集合类型的数据操作
     *
     * @param redisTemplate
     * @return
     */
    @Bean
    public ZSetOperations<String, Object> zSetOperations(RedisTemplate<String, Object> redisTemplate) {
        return redisTemplate.opsForZSet();
    }

}

util类

package com.mcy.redisdemo.util;

import org.redisson.api.RLock;
import org.redisson.api.RedissonClient;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import java.util.concurrent.TimeUnit;


@Component
public class RedissonUtil {

    @Autowired
    private RedissonClient redissonClient; // RedissonClient已经由配置类生成，这里自动装配即可

    /**
     * 锁住不设置超时时间(拿不到lock就不罢休，不然线程就一直block)
     * @author lst
     * @date 2020-5-24 16:23
     * @param lockKey
     * @return org.redisson.api.RLock
     */
    public RLock lock(String lockKey) {
        RLock lock = redissonClient.getLock(lockKey);
        lock.lock();
        return lock;
    }

    /**
     * leaseTime为加锁时间，单位为秒
     * @author lst
     * @date 2020-5-24 16:23
     * @param lockKey
     * @param leaseTime
     * @return org.redisson.api.RLock
     */
    public RLock lock(String lockKey, long leaseTime) {
        RLock lock = redissonClient.getLock(lockKey);
        lock.lock(leaseTime, TimeUnit.SECONDS);
        return null;
    }

    /**
     * timeout为加锁时间，时间单位由unit确定
     * @author lst
     * @date 2020-5-24 16:24
     * @param lockKey
     * @param unit
     * @param timeout
     * @return org.redisson.api.RLock
     */
    public RLock lock(String lockKey, TimeUnit unit, long timeout) {
        RLock lock = redissonClient.getLock(lockKey);
        lock.lock(timeout, unit);
        return lock;
    }

    /**
     * 尝试获取锁
     * @author lst
     * @date 2020-5-24 16:24
     * @param lockKey
     * @param unit
     * @param waitTime
     * @param leaseTime
     * @return boolean
     */
    public boolean tryLock(String lockKey, TimeUnit unit, long waitTime, long leaseTime) {
        RLock lock = redissonClient.getLock(lockKey);
        try {
            return lock.tryLock(waitTime, leaseTime, unit);
        } catch (InterruptedException e) {
            return false;
        }
    }

    /**
     * 通过lockKey解锁
     * @author lst
     * @date 2020-5-24 16:24
     * @param lockKey
     * @return void
     */
    public void unlock(String lockKey) {
        RLock lock = redissonClient.getLock(lockKey);
        lock.unlock();
    }

    /**
     * 直接通过锁解锁
     * @author lst
     * @date 2020-5-24 16:25
     * @param lock
     * @return void
     */
    public void unlock(RLock lock) {
        lock.unlock();
    }
}

package com.mcy.redisdemo.util;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Component;
import org.springframework.util.CollectionUtils;

import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.TimeUnit;

/**
 * redisTemplate封装
 *
 */
@Component
public class RedisUtil {

    @Autowired
    private RedisTemplate<String, Object> redisTemplate;

    public RedisUtil(RedisTemplate<String, Object> redisTemplate) {
        this.redisTemplate = redisTemplate;
    }

    /**
     * 指定缓存失效时间
     * @param key 键
     * @param time 时间(秒)
     * @return
     */
    public boolean expire(String key,long time){
        try {
            if(time>0){
                redisTemplate.expire(key, time, TimeUnit.SECONDS);
            }
            return true;
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
    }

    /**
     * 根据key 获取过期时间
     * @param key 键 不能为null
     * @return 时间(秒) 返回0代表为永久有效
     */
    public long getExpire(String key){
        return redisTemplate.getExpire(key,TimeUnit.SECONDS);
    }

    /**
     * 判断key是否存在
     * @param key 键
     * @return true 存在 false不存在
     */
    public boolean hasKey(String key){
        try {
            return redisTemplate.hasKey(key);
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
    }

    /**
     * 删除缓存
     * @param key 可以传一个值 或多个
     */
    @SuppressWarnings("unchecked")
    public void del(String ... key){
        if(key!=null&&key.length>0){
            if(key.length==1){
                redisTemplate.delete(key[0]);
            }else{
                redisTemplate.delete(CollectionUtils.arrayToList(key));
            }
        }
    }

    //============================String=============================
    /**
     * 普通缓存获取
     * @param key 键
     * @return 值
     */
    public Object get(String key){
        return key==null?null:redisTemplate.opsForValue().get(key);
    }

    /**
     * 普通缓存放入
     * @param key 键
     * @param value 值
     * @return true成功 false失败
     */
    public boolean set(String key,Object value) {
        try {
            redisTemplate.opsForValue().set(key, value);
            return true;
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
    }

    /**
     * 普通缓存放入并设置时间
     * @param key 键
     * @param value 值
     * @param time 时间(秒) time要大于0 如果time小于等于0 将设置无限期
     * @return true成功 false 失败
     */
    public boolean set(String key,Object value,long time){
        try {
            if(time>0){
                redisTemplate.opsForValue().set(key, value, time, TimeUnit.SECONDS);
            }else{
                set(key, value);
            }
            return true;
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
    }

    /**
     * 递增
     * @param key 键
     * @param delta 要增加几(大于0)
     * @return
     */
    public long incr(String key, long delta){
        if(delta<0){
            throw new RuntimeException("递增因子必须大于0");
        }
        return redisTemplate.opsForValue().increment(key, delta);
    }

    /**
     * 递减
     * @param key 键
     * @param delta 要减少几(小于0)
     * @return
     */
    public long decr(String key, long delta){
        if(delta<0){
            throw new RuntimeException("递减因子必须大于0");
        }
        return redisTemplate.opsForValue().increment(key, -delta);
    }

    //================================Map=================================
    /**
     * HashGet
     * @param key 键 不能为null
     * @param item 项 不能为null
     * @return 值
     */
    public Object hget(String key,String item){
        return redisTemplate.opsForHash().get(key, item);
    }

    /**
     * 获取hashKey对应的所有键值
     * @param key 键
     * @return 对应的多个键值
     */
    public Map<Object,Object> hmget(String key){
        return redisTemplate.opsForHash().entries(key);
    }

    /**
     * HashSet
     * @param key 键
     * @param map 对应多个键值
     * @return true 成功 false 失败
     */
    public boolean hmset(String key, Map<String,Object> map){
        try {
            redisTemplate.opsForHash().putAll(key, map);
            return true;
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
    }

    /**
     * HashSet 并设置时间
     * @param key 键
     * @param map 对应多个键值
     * @param time 时间(秒)
     * @return true成功 false失败
     */
    public boolean hmset(String key, Map<String,Object> map, long time){
        try {
            redisTemplate.opsForHash().putAll(key, map);
            if(time>0){
                expire(key, time);
            }
            return true;
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
    }

    /**
     * 向一张hash表中放入数据,如果不存在将创建
     * @param key 键
     * @param item 项
     * @param value 值
     * @return true 成功 false失败
     */
    public boolean hset(String key,String item,Object value) {
        try {
            redisTemplate.opsForHash().put(key, item, value);
            return true;
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
    }

    /**
     * 向一张hash表中放入数据,如果不存在将创建
     * @param key 键
     * @param item 项
     * @param value 值
     * @param time 时间(秒)  注意:如果已存在的hash表有时间,这里将会替换原有的时间
     * @return true 成功 false失败
     */
    public boolean hset(String key,String item,Object value,long time) {
        try {
            redisTemplate.opsForHash().put(key, item, value);
            if(time>0){
                expire(key, time);
            }
            return true;
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
    }

    /**
     * 删除hash表中的值
     * @param key 键 不能为null
     * @param item 项 可以使多个 不能为null
     */
    public void hdel(String key, Object... item){
        redisTemplate.opsForHash().delete(key,item);
    }

    /**
     * 判断hash表中是否有该项的值
     * @param key 键 不能为null
     * @param item 项 不能为null
     * @return true 存在 false不存在
     */
    public boolean hHasKey(String key, String item){
        return redisTemplate.opsForHash().hasKey(key, item);
    }

    /**
     * hash递增 如果不存在,就会创建一个 并把新增后的值返回
     * @param key 键
     * @param item 项
     * @param by 要增加几(大于0)
     * @return
     */
    public double hincr(String key, String item,double by){
        return redisTemplate.opsForHash().increment(key, item, by);
    }

    /**
     * hash递减
     * @param key 键
     * @param item 项
     * @param by 要减少记(小于0)
     * @return
     */
    public double hdecr(String key, String item,double by){
        return redisTemplate.opsForHash().increment(key, item,-by);
    }

    //============================set=============================
    /**
     * 根据key获取Set中的所有值
     * @param key 键
     * @return
     */
    public Set<Object> sGet(String key){
        try {
            return redisTemplate.opsForSet().members(key);
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }

    /**
     * 根据value从一个set中查询,是否存在
     * @param key 键
     * @param value 值
     * @return true 存在 false不存在
     */
    public boolean sHasKey(String key,Object value){
        try {
            return redisTemplate.opsForSet().isMember(key, value);
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
    }

    /**
     * 将数据放入set缓存
     * @param key 键
     * @param values 值 可以是多个
     * @return 成功个数
     */
    public long sSet(String key, Object...values) {
        try {
            return redisTemplate.opsForSet().add(key, values);
        } catch (Exception e) {
            e.printStackTrace();
            return 0;
        }
    }

    /**
     * 将set数据放入缓存
     * @param key 键
     * @param time 时间(秒)
     * @param values 值 可以是多个
     * @return 成功个数
     */
    public long sSetAndTime(String key,long time,Object...values) {
        try {
            Long count = redisTemplate.opsForSet().add(key, values);
            if(time>0) {
                expire(key, time);
            }
            return count;
        } catch (Exception e) {
            e.printStackTrace();
            return 0;
        }
    }

    /**
     * 获取set缓存的长度
     * @param key 键
     * @return
     */
    public long sGetSetSize(String key){
        try {
            return redisTemplate.opsForSet().size(key);
        } catch (Exception e) {
            e.printStackTrace();
            return 0;
        }
    }

    /**
     * 移除值为value的
     * @param key 键
     * @param values 值 可以是多个
     * @return 移除的个数
     */
    public long setRemove(String key, Object ...values) {
        try {
            Long count = redisTemplate.opsForSet().remove(key, values);
            return count;
        } catch (Exception e) {
            e.printStackTrace();
            return 0;
        }
    }
    //===============================list=================================

    /**
     * 获取list缓存的内容
     * @param key 键
     * @param start 开始
     * @param end 结束  0 到 -1代表所有值
     * @return
     */
    public List<Object> lGet(String key, long start, long end){
        try {
            return redisTemplate.opsForList().range(key, start, end);
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }

    /**
     * 获取list缓存的长度
     * @param key 键
     * @return
     */
    public long lGetListSize(String key){
        try {
            return redisTemplate.opsForList().size(key);
        } catch (Exception e) {
            e.printStackTrace();
            return 0;
        }
    }

    /**
     * 通过索引 获取list中的值
     * @param key 键
     * @param index 索引  index>=0时， 0 表头，1 第二个元素，依次类推；index<0时，-1，表尾，-2倒数第二个元素，依次类推
     * @return
     */
    public Object lGetIndex(String key,long index){
        try {
            return redisTemplate.opsForList().index(key, index);
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }

    /**
     * 将list放入缓存
     * @param key 键
     * @param value 值
     * @return
     */
    public boolean lSet(String key, Object value) {
        try {
            redisTemplate.opsForList().rightPush(key, value);
            return true;
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
    }

    /**
     * 将list放入缓存
     * @param key 键
     * @param value 值
     * @param time 时间(秒)
     * @return
     */
    public boolean lSet(String key, Object value, long time) {
        try {
            redisTemplate.opsForList().rightPush(key, value);
            if (time > 0) {
                expire(key, time);
            }
            return true;
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
    }

    /**
     * 将list放入缓存
     * @param key 键
     * @param value 值
     * @return
     */
    public boolean lSetList(String key, List<Object> value) {
        try {
            redisTemplate.opsForList().rightPushAll(key, value);
            return true;
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
    }

    /**
     * 将list放入缓存
     * @param key 键
     * @param value 值
     * @param time 时间(秒)
     * @return
     */
    public boolean lSetList(String key, List<Object> value, long time) {
        try {
            redisTemplate.opsForList().rightPushAll(key, value);
            if (time > 0) {
                expire(key, time);
            }
            return true;
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
    }

    /**
     * 根据索引修改list中的某条数据
     * @param key 键
     * @param index 索引
     * @param value 值
     * @return
     */
    public boolean lUpdateIndex(String key, long index,Object value) {
        try {
            redisTemplate.opsForList().set(key, index, value);
            return true;
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
    }

    /**
     * 移除N个值为value
     * @param key 键
     * @param count 移除多少个
     * @param value 值
     * @return 移除的个数
     */
    public long lRemove(String key,long count,Object value) {
        try {
            Long remove = redisTemplate.opsForList().remove(key, count, value);
            return remove;
        } catch (Exception e) {
            e.printStackTrace();
            return 0;
        }
    }

}

启动类

package com.mcy.redisdemo;

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

@SpringBootApplication
public class RedisDemoApplication {

    public static void main(String[] args) {
        SpringApplication.run(RedisDemoApplication.class, args);
    }

}

controler

package com.mcy.redisdemo.controller;

import com.mcy.redisdemo.entity.Stu;
import com.mcy.redisdemo.util.RedisUtil;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.annotation.Resource;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

@RestController
@RequestMapping(value = "/redis")
public class RedisController {

    @Resource
    private RedisTemplate<String, Object> redisTemplate;
    @Autowired
    private RedisUtil redisUtil;

    /**
     * 获取对应键的值，redisTemplate操作
     * @param key
     * @return
     */
    @RequestMapping(value = "get")
    public Object getValue(String key){
        Object value = redisTemplate.opsForValue().get(key);
        return value;
    }

    /**
     * 添加键值
     * @param key
     * @param value
     * @returnhttp://127.0.0.1/redis/set?key=key1&value=1
     */
    @RequestMapping(value = "set")
    public boolean set(String key, String value){
        return redisUtil.set(key, value);
    }

    /**
     * 添加List对象数据到redis中
     * @return
     */
    @RequestMapping(value = "/setList")
    public boolean setList(){
        List<Object> stuList = new ArrayList<>();
        Stu stu = new Stu();
        stu.setId(1);
        stu.setAge(18);
        stu.setDept("软件部");
        stu.setName("张三");

        Stu stu1 = new Stu();
        stu1.setId(2);
        stu1.setAge(18);
        stu1.setDept("软件部");
        stu1.setName("王五");

        Stu stu2 = new Stu();
        stu2.setId(3);
        stu2.setAge(18);
        stu2.setDept("财务部");
        stu2.setName("李四");

        stuList.add(stu);
        stuList.add(stu1);
        stuList.add(stu2);
        return redisUtil.lSetList("stu", stuList);
    }

    /**
     * 获取全部数据
     * @return
     */
    @RequestMapping(value = "getList")
    public Object getList(){
        return redisUtil.lGet("stu", 0, -1);
    }

    @RequestMapping("/testTransactiont")
    @Transactional
    public Map<String, Object> testTransactiont() {

        redisTemplate.opsForValue().set("key111", "v1");

        //设置要监控的key1
        redisTemplate.watch("key111");
        //开始事务，在exec命令执行前，全部只是进入队列
        redisTemplate.multi();
        redisTemplate.opsForValue().set("key211", "v2");
        //redisTemplate.opsForValue().increment("key1",1); //①
        //v2值应为null
        Object v2 = redisTemplate.opsForValue().get("key211");
        System.out.println("命令在队列，所以v2为:" + v2);
        redisTemplate.opsForValue().set("key311", "v3");

        Object v3 = redisTemplate.opsForValue().get("key311");
        System.out.println("命令在队列，所以v3为:" + v3);
        //执行exec(),将先判别key1是否在监控后修改过，如果是则不执行事务，否则执行事务
      redisTemplate.exec();//②
        //redisTemplate.discard();
        Object v31 = redisTemplate.opsForValue().get("key311");
        System.out.println("命令在队列，所以v3为:" + v31);
        Map<String, Object> map = new HashMap<String, Object>();
        map.put("success", true);
        return map;
    }


}

package com.mcy.redisdemo.controller;

import com.mcy.redisdemo.util.RedissonUtil;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.concurrent.TimeUnit;

/**
 * @DESCRIPTION 测试类
 * @Author lst
 * @Date 2020-05-24
 */
@RestController
@RequestMapping("/test")
public class TestController {

    public final static String REDISSON_KEY = "redisson_key";

    @Autowired
    private RedissonUtil redissonUtil;

    @GetMapping(value = "/redisson", produces = "application/json; charset=utf-8")
    public void redisson() {
        try{
            System.out.println("============={} 线程访问开始============"+Thread.currentThread().getName());
            //TODO 尝试获取锁，等待3秒，自己获得锁后一直不解锁则5秒后自动解锁
            boolean lock = redissonUtil.tryLock(REDISSON_KEY, TimeUnit.SECONDS, 3L, 5L);
            if (lock) {
                System.out.println("线程:{}，获取到了锁"+Thread.currentThread().getName());
                //TODO 获得锁之后可以进行相应的处理  睡一会
                Thread.sleep(100);
                System.out.println("======获得锁后进行相应的操作======" + Thread.currentThread().getName());
                redissonUtil.unlock(REDISSON_KEY);
                System.out.println("=============================" + Thread.currentThread().getName());
            }
        }catch (Exception e){
            System.out.println("错误信息：{}"+e.toString());
            System.out.println("线程：{} 获取锁失败"+Thread.currentThread().getName());
        }

    }
}

package com.mcy.redisdemo.entity;

public class Stu {
    private Integer id;
    private String name;    //姓名
    private Integer age;    //年龄
    private String dept;    //部门

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

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

    public Integer getAge() {
        return age;
    }

    public void setAge(Integer age) {
        this.age = age;
    }

    public String getDept() {
        return dept;
    }

    public void setDept(String dept) {
        this.dept = dept;
    }
}

通过jmeter进行并发测试

springboot reddison 引单机模式_redis

springboot reddison 引单机模式_spring boot_02

测试结果

============={} 线程访问开始============http-nio-80-exec-18
============={} 线程访问开始============http-nio-80-exec-11
============={} 线程访问开始============http-nio-80-exec-9
============={} 线程访问开始============http-nio-80-exec-6
============={} 线程访问开始============http-nio-80-exec-20
============={} 线程访问开始============http-nio-80-exec-19
============={} 线程访问开始============http-nio-80-exec-1
============={} 线程访问开始============http-nio-80-exec-12
============={} 线程访问开始============http-nio-80-exec-8
============={} 线程访问开始============http-nio-80-exec-5
============={} 线程访问开始============http-nio-80-exec-2
============={} 线程访问开始============http-nio-80-exec-10
============={} 线程访问开始============http-nio-80-exec-7
============={} 线程访问开始============http-nio-80-exec-14
============={} 线程访问开始============http-nio-80-exec-21
============={} 线程访问开始============http-nio-80-exec-16
============={} 线程访问开始============http-nio-80-exec-13
============={} 线程访问开始============http-nio-80-exec-17
============={} 线程访问开始============http-nio-80-exec-15
============={} 线程访问开始============http-nio-80-exec-3
============={} 线程访问开始============http-nio-80-exec-4
============={} 线程访问开始============http-nio-80-exec-22
============={} 线程访问开始============http-nio-80-exec-23
线程:{}，获取到了锁http-nio-80-exec-13
============={} 线程访问开始============http-nio-80-exec-24
============={} 线程访问开始============http-nio-80-exec-25
============={} 线程访问开始============http-nio-80-exec-26
============={} 线程访问开始============http-nio-80-exec-27
============={} 线程访问开始============http-nio-80-exec-28
============={} 线程访问开始============http-nio-80-exec-29
============={} 线程访问开始============http-nio-80-exec-30
============={} 线程访问开始============http-nio-80-exec-32
============={} 线程访问开始============http-nio-80-exec-31
============={} 线程访问开始============http-nio-80-exec-33
======获得锁后进行相应的操作======http-nio-80-exec-13
=============================http-nio-80-exec-13
============={} 线程访问开始============http-nio-80-exec-35
============={} 线程访问开始============http-nio-80-exec-34
线程:{}，获取到了锁http-nio-80-exec-21
============={} 线程访问开始============http-nio-80-exec-36
============={} 线程访问开始============http-nio-80-exec-37
============={} 线程访问开始============http-nio-80-exec-38
============={} 线程访问开始============http-nio-80-exec-13
============={} 线程访问开始============http-nio-80-exec-39
============={} 线程访问开始============http-nio-80-exec-40
============={} 线程访问开始============http-nio-80-exec-41
============={} 线程访问开始============http-nio-80-exec-43
============={} 线程访问开始============http-nio-80-exec-42
======获得锁后进行相应的操作======http-nio-80-exec-21
=============================http-nio-80-exec-21
线程:{}，获取到了锁http-nio-80-exec-4
============={} 线程访问开始============http-nio-80-exec-44
============={} 线程访问开始============http-nio-80-exec-21
============={} 线程访问开始============http-nio-80-exec-45
============={} 线程访问开始============http-nio-80-exec-46
============={} 线程访问开始============http-nio-80-exec-47
============={} 线程访问开始============http-nio-80-exec-48
============={} 线程访问开始============http-nio-80-exec-49
============={} 线程访问开始============http-nio-80-exec-50
============={} 线程访问开始============http-nio-80-exec-51
============={} 线程访问开始============http-nio-80-exec-53
============={} 线程访问开始============http-nio-80-exec-52
======获得锁后进行相应的操作======http-nio-80-exec-4
=============================http-nio-80-exec-4
线程:{}，获取到了锁http-nio-80-exec-12
============={} 线程访问开始============http-nio-80-exec-54
============={} 线程访问开始============http-nio-80-exec-4
============={} 线程访问开始============http-nio-80-exec-55
============={} 线程访问开始============http-nio-80-exec-56
============={} 线程访问开始============http-nio-80-exec-57
============={} 线程访问开始============http-nio-80-exec-58
============={} 线程访问开始============http-nio-80-exec-59
============={} 线程访问开始============http-nio-80-exec-60
============={} 线程访问开始============http-nio-80-exec-61
============={} 线程访问开始============http-nio-80-exec-62
======获得锁后进行相应的操作======http-nio-80-exec-12
=============================http-nio-80-exec-12
线程:{}，获取到了锁http-nio-80-exec-1
============={} 线程访问开始============http-nio-80-exec-64
============={} 线程访问开始============http-nio-80-exec-63
============={} 线程访问开始============http-nio-80-exec-12
============={} 线程访问开始============http-nio-80-exec-65
============={} 线程访问开始============http-nio-80-exec-66
============={} 线程访问开始============http-nio-80-exec-67
============={} 线程访问开始============http-nio-80-exec-69
============={} 线程访问开始============http-nio-80-exec-68
============={} 线程访问开始============http-nio-80-exec-70
============={} 线程访问开始============http-nio-80-exec-71
============={} 线程访问开始============http-nio-80-exec-72
======获得锁后进行相应的操作======http-nio-80-exec-1
=============================http-nio-80-exec-1
线程:{}，获取到了锁http-nio-80-exec-6
============={} 线程访问开始============http-nio-80-exec-74
============={} 线程访问开始============http-nio-80-exec-73
============={} 线程访问开始============http-nio-80-exec-1
============={} 线程访问开始============http-nio-80-exec-76
============={} 线程访问开始============http-nio-80-exec-75
============={} 线程访问开始============http-nio-80-exec-77
============={} 线程访问开始============http-nio-80-exec-78
============={} 线程访问开始============http-nio-80-exec-79
============={} 线程访问开始============http-nio-80-exec-80
============={} 线程访问开始============http-nio-80-exec-81
============={} 线程访问开始============http-nio-80-exec-82
======获得锁后进行相应的操作======http-nio-80-exec-6
=============================http-nio-80-exec-6
线程:{}，获取到了锁http-nio-80-exec-24
============={} 线程访问开始============http-nio-80-exec-83
============={} 线程访问开始============http-nio-80-exec-6
============={} 线程访问开始============http-nio-80-exec-84
============={} 线程访问开始============http-nio-80-exec-85
============={} 线程访问开始============http-nio-80-exec-86
============={} 线程访问开始============http-nio-80-exec-87
============={} 线程访问开始============http-nio-80-exec-88
============={} 线程访问开始============http-nio-80-exec-89
============={} 线程访问开始============http-nio-80-exec-90
============={} 线程访问开始============http-nio-80-exec-91
============={} 线程访问开始============http-nio-80-exec-92
======获得锁后进行相应的操作======http-nio-80-exec-24
=============================http-nio-80-exec-24
线程:{}，获取到了锁http-nio-80-exec-18
============={} 线程访问开始============http-nio-80-exec-93
============={} 线程访问开始============http-nio-80-exec-24
======获得锁后进行相应的操作======http-nio-80-exec-18
=============================http-nio-80-exec-18
线程:{}，获取到了锁http-nio-80-exec-22
======获得锁后进行相应的操作======http-nio-80-exec-22
=============================http-nio-80-exec-22
线程:{}，获取到了锁http-nio-80-exec-5
======获得锁后进行相应的操作======http-nio-80-exec-5
=============================http-nio-80-exec-5
线程:{}，获取到了锁http-nio-80-exec-10
======获得锁后进行相应的操作======http-nio-80-exec-10
=============================http-nio-80-exec-10
线程:{}，获取到了锁http-nio-80-exec-2
======获得锁后进行相应的操作======http-nio-80-exec-2
=============================http-nio-80-exec-2
线程:{}，获取到了锁http-nio-80-exec-25
======获得锁后进行相应的操作======http-nio-80-exec-25
=============================http-nio-80-exec-25
线程:{}，获取到了锁http-nio-80-exec-11
======获得锁后进行相应的操作======http-nio-80-exec-11
=============================http-nio-80-exec-11
线程:{}，获取到了锁http-nio-80-exec-9
======获得锁后进行相应的操作======http-nio-80-exec-9
=============================http-nio-80-exec-9
线程:{}，获取到了锁http-nio-80-exec-15
======获得锁后进行相应的操作======http-nio-80-exec-15
=============================http-nio-80-exec-15
线程:{}，获取到了锁http-nio-80-exec-14
======获得锁后进行相应的操作======http-nio-80-exec-14
=============================http-nio-80-exec-14
线程:{}，获取到了锁http-nio-80-exec-19
======获得锁后进行相应的操作======http-nio-80-exec-19
=============================http-nio-80-exec-19
线程:{}，获取到了锁http-nio-80-exec-23
======获得锁后进行相应的操作======http-nio-80-exec-23
=============================http-nio-80-exec-23
线程:{}，获取到了锁http-nio-80-exec-3
======获得锁后进行相应的操作======http-nio-80-exec-3
=============================http-nio-80-exec-3
线程:{}，获取到了锁http-nio-80-exec-16
======获得锁后进行相应的操作======http-nio-80-exec-16
=============================http-nio-80-exec-16
线程:{}，获取到了锁http-nio-80-exec-8
======获得锁后进行相应的操作======http-nio-80-exec-8
=============================http-nio-80-exec-8
线程:{}，获取到了锁http-nio-80-exec-20
======获得锁后进行相应的操作======http-nio-80-exec-20
=============================http-nio-80-exec-20
线程:{}，获取到了锁http-nio-80-exec-17
======获得锁后进行相应的操作======http-nio-80-exec-17
=============================http-nio-80-exec-17
线程:{}，获取到了锁http-nio-80-exec-7
======获得锁后进行相应的操作======http-nio-80-exec-7
=============================http-nio-80-exec-7
线程:{}，获取到了锁http-nio-80-exec-26
======获得锁后进行相应的操作======http-nio-80-exec-26
=============================http-nio-80-exec-26
线程:{}，获取到了锁http-nio-80-exec-27
======获得锁后进行相应的操作======http-nio-80-exec-27
=============================http-nio-80-exec-27
线程:{}，获取到了锁http-nio-80-exec-28
======获得锁后进行相应的操作======http-nio-80-exec-28
=============================http-nio-80-exec-28
线程:{}，获取到了锁http-nio-80-exec-29
======获得锁后进行相应的操作======http-nio-80-exec-29
=============================http-nio-80-exec-29
线程:{}，获取到了锁http-nio-80-exec-13
======获得锁后进行相应的操作======http-nio-80-exec-13
=============================http-nio-80-exec-13
线程:{}，获取到了锁http-nio-80-exec-48
======获得锁后进行相应的操作======http-nio-80-exec-48
=============================http-nio-80-exec-48
线程:{}，获取到了锁http-nio-80-exec-58
======获得锁后进行相应的操作======http-nio-80-exec-58
=============================http-nio-80-exec-58
线程:{}，获取到了锁http-nio-80-exec-67
======获得锁后进行相应的操作======http-nio-80-exec-67
=============================http-nio-80-exec-67
线程:{}，获取到了锁http-nio-80-exec-77
======获得锁后进行相应的操作======http-nio-80-exec-77
=============================http-nio-80-exec-77
线程:{}，获取到了锁http-nio-80-exec-87
======获得锁后进行相应的操作======http-nio-80-exec-87
=============================http-nio-80-exec-87