Redis-Springboot

本文详细介绍了如何在Spring Boot项目中整合Redis,包括导入依赖、配置属性、设置Jedis连接池、配置RedisTemplate以及实现基本的CRUD操作。通过本教程,读者可以学会如何在项目中高效地使用Redis。

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慢慢补充,有用到就写进来。

1.导入jar包。

        <dependency>
            <groupId>redis.clients</groupId>
            <artifactId>jedis</artifactId>
            <version>2.9.0</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
        </dependency>

2.配置application.properties

spring.redis.host=127.0.0.1
spring.redis.port=6379
spring.redis.password=
spring.redis.jedis.pool.max-active=100
spring.redis.jedis.pool.max-idle=10
spring.redis.jedis.pool.max-wait=100000
spring.redis.timeout=0

3.配置Jedis连接池

@Configuration
@PropertySource("classpath:redis.properties")
public class RedisConf {

    @Value("${redis.maxIdle}")
    private Integer maxIdle;

    @Value("${redis.maxTotal}")
    private Integer maxTotal;

    @Value("${redis.maxWaitMillis}")
    private Integer maxWaitMillis;

    @Value("${redis.minEvictableIdleTimeMillis}")
    private Integer minEvictableIdleTimeMillis;

    @Value("${redis.numTestsPerEvictionRun}")
    private Integer numTestsPerEvictionRun;

    @Value("${redis.timeBetweenEvictionRunsMillis}")
    private long timeBetweenEvictionRunsMillis;

    @Value("${redis.testOnBorrow}")
    private boolean testOnBorrow;

    @Value("${redis.testWhileIdle}")
    private boolean testWhileIdle;


    @Value("${spring.redis.cluster.nodes}")
    private String clusterNodes;

    @Value("${spring.redis.cluster.max-redirects}")
    private Integer mmaxRedirectsac;

    /**
     * JedisPoolConfig 连接池
     *
     * @return
     */
    @Bean
    public JedisPoolConfig jedisPoolConfig() {
        JedisPoolConfig jedisPoolConfig = new JedisPoolConfig();
        // 最大空闲数
        jedisPoolConfig.setMaxIdle(maxIdle);
        // 连接池的最大数据库连接数
        jedisPoolConfig.setMaxTotal(maxTotal);
        // 最大建立连接等待时间
        jedisPoolConfig.setMaxWaitMillis(maxWaitMillis);
        // 逐出连接的最小空闲时间 默认1800000毫秒(30分钟)
        jedisPoolConfig.setMinEvictableIdleTimeMillis(minEvictableIdleTimeMillis);
        // 每次逐出检查时 逐出的最大数目 如果为负数就是 : 1/abs(n), 默认3
        jedisPoolConfig.setNumTestsPerEvictionRun(numTestsPerEvictionRun);
        // 逐出扫描的时间间隔(毫秒) 如果为负数,则不运行逐出线程, 默认-1
        jedisPoolConfig.setTimeBetweenEvictionRunsMillis(timeBetweenEvictionRunsMillis);
        // 是否在从池中取出连接前进行检验,如果检验失败,则从池中去除连接并尝试取出另一个
        jedisPoolConfig.setTestOnBorrow(testOnBorrow);
        // 在空闲时检查有效性, 默认false
        jedisPoolConfig.setTestWhileIdle(testWhileIdle);
        return jedisPoolConfig;
    }

    /**
     * 单机版配置
     *
     * @param @param  jedisPoolConfig
     * @param @return
     * @return JedisConnectionFactory
     */
    @Bean
    public JedisConnectionFactory JedisConnectionFactory(JedisPoolConfig jedisPoolConfig) {
        JedisConnectionFactory JedisConnectionFactory = new JedisConnectionFactory(jedisPoolConfig);
//        //连接池
//        JedisConnectionFactory.setPoolConfig(jedisPoolConfig);
//        //IP地址
//        JedisConnectionFactory.setHostName("127.0.0.1");
//        //端口号
//        JedisConnectionFactory.setPort(6379);
//        //如果Redis设置有密码
//        //JedisConnectionFactory.setPassword(password);
//        //客户端超时时间单位是毫秒
//        JedisConnectionFactory.setTimeout(5000);
        return JedisConnectionFactory;
    }

    /**
     * 实例化 RedisTemplate 对象
     *
     * @return
     */
    @Bean
    public RedisTemplate<String, Object> functionDomainRedisTemplate(RedisConnectionFactory redisConnectionFactory) {
        RedisTemplate<String, Object> redisTemplate = new RedisTemplate<>();
        initDomainRedisTemplate(redisTemplate, redisConnectionFactory);
        return redisTemplate;
    }

    /**
     * 设置数据存入 redis 的序列化方式,并开启事务
     *
     * @param redisTemplate
     * @param factory
     */
    private void initDomainRedisTemplate(RedisTemplate<String, Object> redisTemplate, RedisConnectionFactory factory) {
        //如果不配置Serializer,那么存储的时候缺省使用String,如果用User类型存储,那么会提示错误User can't cast to String!
        redisTemplate.setKeySerializer(new StringRedisSerializer());
        redisTemplate.setHashKeySerializer(new StringRedisSerializer());
        redisTemplate.setHashValueSerializer(new GenericJackson2JsonRedisSerializer());
        redisTemplate.setValueSerializer(new GenericJackson2JsonRedisSerializer());
        // 开启事务
        redisTemplate.setEnableTransactionSupport(true);
        redisTemplate.setConnectionFactory(factory);
    }

    /**
     * 注入封装RedisTemplate
     *
     * @return RedisUtil
     * @throws
     * @Title: redisUtil
     */
    @Bean(name = "redisUtil")
    public RedisUtil redisUtil(RedisTemplate<String, Object> redisTemplate) {
        RedisUtil redisUtil = new RedisUtil();
        redisUtil.setRedisTemplate(redisTemplate);
        return redisUtil;
    }
}

4.配置redisTemplate

@Configuration
public class RedisConfig {
    @Autowired
    private RedisConnectionFactory redisConnectionFactory;

    @Bean
    public RedisTemplate<String, Object> redisTemplate() {
        RedisTemplate<String, Object> redisTemplate = new RedisTemplate<>();
        redisTemplate.setKeySerializer(new StringRedisSerializer());
        redisTemplate.setHashKeySerializer(new StringRedisSerializer());
        redisTemplate.setHashValueSerializer(new StringRedisSerializer());
        redisTemplate.setValueSerializer(new JdkSerializationRedisSerializer());
        redisTemplate.setConnectionFactory(redisConnectionFactory);
        return redisTemplate;
    }

    @Bean
    public HashOperations<String, String, Object> hashOperations(RedisTemplate<String, Object> redisTemplate) {
        return redisTemplate.opsForHash();
    }

    @Bean
    public ValueOperations<String, String> valueOperations(RedisTemplate<String, String> redisTemplate) {
        return redisTemplate.opsForValue();
    }

    @Bean
    public ListOperations<String, Object> listOperations(RedisTemplate<String, Object> redisTemplate) {
        return redisTemplate.opsForList();
    }

    @Bean
    public SetOperations<String, Object> setOperations(RedisTemplate<String, Object> redisTemplate) {
        return redisTemplate.opsForSet();
    }

    @Bean
    public ZSetOperations<String, Object> zSetOperations(RedisTemplate<String, Object> redisTemplate) {
        return redisTemplate.opsForZSet();
    }
}

5.将用到的redis写进redis工具类

@Component
public class RedisUtil{

    @Autowired
    private RedisTemplate<String, Object> redisTemplate;
    public void setRedisTemplate(RedisTemplate<String, Object> redisTemplate) {
        this.redisTemplate = redisTemplate;
    }


    public boolean setUserList(ArrayList list) {
        try {
            redisTemplate.opsForList().leftPush("list", list);
            return true;
        }
        catch (Exception e){
            return false;
        }
    }
    public ArrayList getUserList() {
        return (ArrayList) redisTemplate.opsForList().leftPop("list");
    }



    public boolean hset(String  appid, String filed, String value) {
        try {
            redisTemplate.opsForHash().put(appid, filed, value);
            return true;
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
    }

    public Object hget(String appid, String field) {
        return redisTemplate.opsForHash().get(appid,field);
    }



    public boolean set(String appid, String password) {
        try{
            redisTemplate.opsForValue().set(appid,password);
            return true;
        }catch (Exception e){
            return false;
        }
    }
}

6.记录一下redis的五种数据类型

http://www.redis.net.cn/tutorial/3501.html

 

 

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