redistemplate 多数据源配置，亲测可用，不能用你打我

朱雀 2023-02-18 10:56 3阅读 0赞

## redistemplate 多数据源配置，网上找了很多博客，都不能用，要么代码报错，要么不报错查询不到数据，真操蛋，气死我了，自己摸索写了个示例，亲测可用 ##

### pom.xml 引入这两个 ###

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

package com.cun.redis;
    
    import org.springframework.beans.factory.annotation.Value;
    import org.springframework.context.annotation.Bean;
    import org.springframework.context.annotation.Configuration;
    import org.springframework.data.redis.connection.RedisConnectionFactory;
    import org.springframework.data.redis.connection.RedisStandaloneConfiguration;
    import org.springframework.data.redis.connection.jedis.JedisClientConfiguration;
    import org.springframework.data.redis.connection.jedis.JedisConnectionFactory;
    import org.springframework.data.redis.core.RedisTemplate;
    import org.springframework.data.redis.serializer.StringRedisSerializer;
    import redis.clients.jedis.JedisPoolConfig;
    
    @Configuration
    public class RedisTemplateConfig {
    
        @Bean(name = "redisTemplate0")
        public RedisTemplate<String, Object> redisTemplate(@Value("${spring.redis.host}") String host,
                                                           @Value("${spring.redis.password}") String password,
                                                           @Value("${spring.redis.port}") int port,
                                                           @Value("${spring.redis.database}") int database) {
            return buildRedisTemplate(buildConnectionFactory(jedisPoolConfig(), host, password, port, database));
        }
    
        @Bean(name = "redisTemplate1")
        public RedisTemplate<String, Object> redisTemplate1(@Value("${spring.redis1.host}") String host,
                                                            @Value("${spring.redis1.password}") String password,
                                                            @Value("${spring.redis1.port}") int port,
                                                            @Value("${spring.redis1.database}") int database) {
            return buildRedisTemplate(buildConnectionFactory(jedisPoolConfig(), host, password, port, database));
        }
    
        protected RedisTemplate<String, Object> buildRedisTemplate(RedisConnectionFactory connectionFactory) {
            RedisTemplate<String, Object> template = new RedisTemplate<>();
            template.setConnectionFactory(connectionFactory);
    
            StringRedisSerializer stringRedisSerializer = new StringRedisSerializer();
            template.setKeySerializer(stringRedisSerializer);
            template.setValueSerializer(stringRedisSerializer);
            template.setHashKeySerializer(stringRedisSerializer);
            template.setHashValueSerializer(stringRedisSerializer);
    
            template.afterPropertiesSet();
            return template;
        }
    
        @Bean
        public JedisPoolConfig jedisPoolConfig() {
            JedisPoolConfig jedisPoolConfig = new JedisPoolConfig();
            //最大连接数
            jedisPoolConfig.setMaxTotal(100);
            //最小空闲连接数
            jedisPoolConfig.setMinIdle(20);
            //当池内没有可用的连接时，最大等待时间
            jedisPoolConfig.setMaxWaitMillis(10000);
            return jedisPoolConfig;
        }
    
        public JedisConnectionFactory buildConnectionFactory(JedisPoolConfig jedisPoolConfig,
                                                             String host, String password, int port, int database) {
            RedisStandaloneConfiguration redisStandaloneConfiguration = new RedisStandaloneConfiguration();
            redisStandaloneConfiguration.setHostName(host);
            redisStandaloneConfiguration.setDatabase(database);
            redisStandaloneConfiguration.setPort(port);
            redisStandaloneConfiguration.setPassword(password);
    
            JedisClientConfiguration.JedisPoolingClientConfigurationBuilder jedisBuilder = (JedisClientConfiguration.JedisPoolingClientConfigurationBuilder) JedisClientConfiguration.builder();
            jedisBuilder.poolConfig(jedisPoolConfig);
            JedisClientConfiguration jedisClientConfiguration = jedisBuilder.build();
            return new JedisConnectionFactory(redisStandaloneConfiguration, jedisClientConfiguration);
        }
    }

### application.yml ###

server:
      port: 80
      servlet:
        context-path: /
      tomcat:
        uri-encoding: utf-8
    spring:
      redis:
        database: 0
        host: 119.97.185.22
        port: 9736
        password: *****
      redis1:
        database: 1
        host: 119.97.185.22
        port: 9736
        password: ******

### 调用很简单，如下 ###

package com.cun.redis;
    
    import org.springframework.data.redis.core.RedisTemplate;
    import org.springframework.data.redis.core.StringRedisTemplate;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RestController;
    
    import javax.annotation.Resource;
    import java.util.Set;
    
    @RestController
    public class HomeControlle {
    
        @Resource(name = "redisTemplate0")
        private RedisTemplate redisTemplate;
    
        @Resource(name = "redisTemplate1")
        private RedisTemplate redisTemplate1;
    
        @RequestMapping("/hello")
        public String hello() {
            Set<String> keys = redisTemplate.keys("*");
            System.out.println(keys.size());
            System.out.println(redisTemplate1.keys("*").size());
            return "hello";
        }
    }