SpringBoot Integrated Distributed Lock redisson

HTTPS: // www.cnblogs.com/yangzhilong/p/7605807.html 

few days ago my colleagues just let this one thing on the increase Baidu check What do you mean .. learn about.

The official document: https://github.com/redisson/redisson/wiki/%E7%9B%AE%E5%BD%95

20,180,226 Updated: Increase tryLock method, it is recommended to remove DistributedLocker behind the interface and (bring flexibility simple but lost interface) to achieve its class, the implementation class directly injected RedissonClient in RedissLockUtil in.

20,190,711 Updated: redisson officially releasedredisson-spring-boot-starter，具体可以参考：https://github.com/redisson/redisson/tree/master/redisson-spring-boot-starter#spring-boot-starter

1, reference redisson of pom

<dependency>
    <groupId>org.redisson</groupId>
    <artifactId>redisson</artifactId>
    <version>3.5.0</version>
</dependency>

2, the definition of the class interface definition Lock

import java.util.concurrent.TimeUnit;

import org.redisson.api.RLock;

public interface DistributedLocker {

    RLock lock(String lockKey);

    RLock lock(String lockKey, int timeout);

    RLock lock(String lockKey, TimeUnit unit, int timeout);

    boolean tryLock(String lockKey, TimeUnit unit, int waitTime, int leaseTime);

    void unlock(String lockKey);

    void unlock(RLock lock);
}

3, Lock interface class

import org.redisson.api.RLock;
import org.redisson.api.RedissonClient;

import java.util.concurrent.TimeUnit;

public class RedissonDistributedLocker implements DistributedLocker {
    
    private RedissonClient redissonClient;

    @Override
    public RLock lock(String lockKey) {
        RLock lock = redissonClient.getLock(lockKey);
        lock.lock();
        return lock;
    }

    @Override
    public RLock lock(String lockKey, int leaseTime) {
        RLock lock = redissonClient.getLock(lockKey);
        lock.lock(leaseTime, TimeUnit.SECONDS);
        return lock;
    }
    
    @Override
    public RLock lock(String lockKey, TimeUnit unit ,int timeout) {
        RLock lock = redissonClient.getLock(lockKey);
        lock.lock(timeout, unit);
        return lock;
    }
    
    @Override
    public boolean tryLock(String lockKey, TimeUnit unit, int waitTime, int leaseTime) {
        RLock lock = redissonClient.getLock(lockKey);
        try {
            return lock.tryLock(waitTime, leaseTime, unit);
        } catch (InterruptedException e) {
            return false;
        }
    }
    
    @Override
    public void unlock(String lockKey) {
        RLock lock = redissonClient.getLock(lockKey);
        lock.unlock();
    }
    
    @Override
    public void unlock(RLock lock) {
        lock.unlock();
    }

    public void setRedissonClient(RedissonClient redissonClient) {
        this.redissonClient = redissonClient;
    }
}

4, redisson assembly property class

import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Configuration;

@Configuration
@ConfigurationProperties(prefix = "redisson")
@ConditionalOnProperty("redisson.password")
public class RedissonProperties {

    private int timeout = 3000;

    private String address;

    private String password;
    
    private int database = 0;

    private int connectionPoolSize = 64;
    
    private int connectionMinimumIdleSize=10;

    private int slaveConnectionPoolSize = 250;

    private int masterConnectionPoolSize = 250;

    private String[] sentinelAddresses;

    private String masterName;

    public int getTimeout() {
        return timeout;
    }

    public void setTimeout(int timeout) {
        this.timeout = timeout;
    }

    public int getSlaveConnectionPoolSize() {
        return slaveConnectionPoolSize;
    }

    public void setSlaveConnectionPoolSize(int slaveConnectionPoolSize) {
        this.slaveConnectionPoolSize = slaveConnectionPoolSize;
    }

    public int getMasterConnectionPoolSize() {
        return masterConnectionPoolSize;
    }

    public void setMasterConnectionPoolSize(int masterConnectionPoolSize) {
        this.masterConnectionPoolSize = masterConnectionPoolSize;
    }

    public String[] getSentinelAddresses() {
        return sentinelAddresses;
    }

    public void setSentinelAddresses(String sentinelAddresses) {
        this.sentinelAddresses = sentinelAddresses.split(",");
    }

    public String getMasterName() {
        return masterName;
    }

    public void setMasterName(String masterName) {
        this.masterName = masterName;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    public String getAddress() {
        return address;
    }

    public void setAddress(String address) {
        this.address = address;
    }

    public int getConnectionPoolSize() {
        return connectionPoolSize;
    }

    public void setConnectionPoolSize(int connectionPoolSize) {
        this.connectionPoolSize = connectionPoolSize;
    }

    public int getConnectionMinimumIdleSize() {
        return connectionMinimumIdleSize;
    }

    public void setConnectionMinimumIdleSize(int connectionMinimumIdleSize) {
        this.connectionMinimumIdleSize = connectionMinimumIdleSize;
    }

    public int getDatabase() {
        return database;
    }

    public void setDatabase(int database) {
        this.database = database;
    }

    public void setSentinelAddresses(String[] sentinelAddresses) {
        this.sentinelAddresses = sentinelAddresses;
    }
}

5, SpringBoot class automatic assembly

import org.apache.commons.lang3.StringUtils;
import org.redisson.Redisson;
import org.redisson.api.RedissonClient;
import org.redisson.config.Config;
import org.redisson.config.SentinelServersConfig;
import org.redisson.config.SingleServerConfig;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import com.longge.lock.DistributedLocker;
import com.longge.lock.RedissonDistributedLocker;
import com.longge.lock.RedissonProperties;
import com.longge.utils.RedissLockUtil;

@Configuration
@ConditionalOnClass(Config.class)
@EnableConfigurationProperties(RedissonProperties.class)
public class RedissonAutoConfiguration {

    @Autowired
    private RedissonProperties redssionProperties;

    /**
     * 哨兵模式自动装配
     * @return
     */
    @Bean
    @ConditionalOnProperty(name="redisson.master-name")
    RedissonClient redissonSentinel() {
        Config config = new Config();
        SentinelServersConfig serverConfig = config.useSentinelServers().addSentinelAddress(redssionProperties.getSentinelAddresses())
                .setMasterName(redssionProperties.getMasterName())
                .setTimeout(redssionProperties.getTimeout())
                .setMasterConnectionPoolSize(redssionProperties.getMasterConnectionPoolSize())
                .setSlaveConnectionPoolSize(redssionProperties.getSlaveConnectionPoolSize());
        
        if(StringUtils.isNotBlank(redssionProperties.getPassword())) {
            serverConfig.setPassword(redssionProperties.getPassword());
        }
        return Redisson.create(config);
    }

    /**
     * 单机模式自动装配
     * @return
     */
    @Bean
    @ConditionalOnProperty(name="redisson.address")
    RedissonClient redissonSingle() {
        Config config = new Config();
        SingleServerConfig serverConfig = config.useSingleServer()
                .setAddress(redssionProperties.getAddress())
                .setTimeout(redssionProperties.getTimeout())
                .setConnectionPoolSize(redssionProperties.getConnectionPoolSize())
                .setConnectionMinimumIdleSize(redssionProperties.getConnectionMinimumIdleSize());
        
        if(StringUtils.isNotBlank(redssionProperties.getPassword())) {
            serverConfig.setPassword(redssionProperties.getPassword());
        }

        return Redisson.create(config);
    }

    /**
     * 装配locker类，并将实例注入到RedissLockUtil中
     * @return
     */
    @Bean
    DistributedLocker distributedLocker(RedissonClient redissonClient) {
        DistributedLocker locker = new RedissonDistributedLocker();
        locker.setRedissonClient(redissonClient);
        RedissLockUtil.setLocker(locker);
        return locker;
    }

}

6, Lock helper

import java.util.concurrent.TimeUnit;

import org.redisson.api.RLock;

import DistributedLocker;

/**
 * redis分布式锁帮助类
 * @author yangzhilong
 *
 */
public class RedissLockUtil {
    private static DistributedLocker redissLock;
    
    public static void setLocker(DistributedLocker locker) {
        redissLock = locker;
    }
    
    /**
     * 加锁
     * @param lockKey
     * @return
     */
    public static RLock lock(String lockKey) {
        return redissLock.lock(lockKey);
    }

    /**
     * 释放锁
     * @param lockKey
     */
    static void UNLOCK public (String lockKey) { 
        redissLock.unlock (lockKey); 
    } 
    
    / ** 
     * lock release 
     * @param Lock 
     * / 
    public static void UNLOCK (RLOCK Lock) { 
        redissLock.unlock (Lock); 
    } 

    / ** 
     * lock with timeout 
     * @param lockKey 
     * @param timeout timeout time: sec 
     * / 
    public static RLOCK lock (String lockKey, int timeout) { 
        return redissLock.lock (lockKey, timeout); 
    } 
    
    / ** 
     * lock with timeout 
     @param lockKey * 
     * @param unit time unit 
     * @param timeout timeout 
     * /
    Lock RLOCK static public (String lockKey, TimeUnit Unit, int timeout) { 
        return redissLock.lock (lockKey, Unit, timeout); 
    } 
    
    / ** 
     * try to acquire locks 
     * @param lockKey 
     * @param the waitTime wait up time 
     * @param leaseTime automatically release the lock after the lock time 
     * @return 
     * / 
    public static Boolean tryLock (String lockKey, the waitTime int, int leaseTime) { 
        return redissLock.tryLock (lockKey, TimeUnit.SECONDS, the waitTime, leaseTime); 
    } 
    
    / ** 
     * attempt to obtain lock 
     * @param lockKey 
     * @param unit time unit 
     * @param waitTime wait up time 
     is automatically released after the lock time * @param leaseTime lock 
     * @return
     * /
    public static boolean tryLock(String lockKey, TimeUnit unit, int waitTime, int leaseTime) {
        return redissLock.tryLock(lockKey, unit, waitTime, leaseTime);
    }
}

Properties file instance:

1, stand-alone mode

# redisson lock
redisson.address=redis://10.18.75.115:6379
redisson.password=

Here if not redis: // URI prefix will be reported build errors,

Caused by: java.net.URISyntaxException: Illegal character in scheme name at index 0

Secondly, when connected in redis password empty if not determine, the situation will AUTH validation failure occurs.

Caused by: org.redisson.client.RedisException: ERR Client sent AUTH, but no password is set. channel

2, Sentinel mode

redisson.master-name=mymaster
redisson.password=xxxx
redisson.sentinel-addresses=10.47.91.83:26379,10.47.91.83:26380,10.47.91.83:26381

More information can be viewed Quguan network configuration