I've a redis service on upstash.io but not able to connect to it from my spring boot application
This is my redis config
@Configurationpublic class RedisConfig { @Bean public LettuceConnectionFactory redisConnectionFactory() { RedisStandaloneConfiguration redisStandaloneConfiguration = new RedisStandaloneConfiguration(); redisStandaloneConfiguration.setHostName("myhost"); redisStandaloneConfiguration.setPort(6379); redisStandaloneConfiguration.setPassword(RedisPassword.of("password")); // Uncomment if password is needed return new LettuceConnectionFactory(redisStandaloneConfiguration); } @Bean public RedisTemplate<Object, Object> redisTemplate() { RedisTemplate<Object, Object> template = new RedisTemplate<>(); template.setConnectionFactory(redisConnectionFactory()); template.setKeySerializer(new StringRedisSerializer()); template.setValueSerializer(new StringRedisSerializer()); return template; }} This is my redis service
@Component @RequiredArgsConstructor public class RedisService { @Autowired private final RedisTemplate<Object, Object> redisTemplate; @PostConstruct public void testConnection() { try { redisTemplate.getConnectionFactory().getConnection().ping(); System.out.println("Connected to Redis successfully"); } catch (Exception e) { System.err.println("Unable to connect to Redis: " + e.getMessage()); } } public <V> void set(String key, V value, long timeout, TimeUnit timeUnit) { System.out.println("Storing message to redis cache: Key[" + key +"]"); redisTemplate.opsForValue().set(key, value); redisTemplate.expire(key, timeout, timeUnit); } public <V> V get(String key) { return (V) redisTemplate.opsForValue().get(key); } public Boolean hasKey(String key) { return redisTemplate.hasKey(key); } } This is my 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>3.0.6</version><relativePath/> <!-- lookup parent from repository --></parent><groupId>com.springprojects</groupId><artifactId>realtimechatapp</artifactId><version>0.0.1-SNAPSHOT</version><packaging>jar</packaging><name>realtimechatapp</name><description>Chat Application using Spring Boot</description><properties><java.version>17</java.version><maven.compiler.source>17</maven.compiler.source><maven.compiler.target>17</maven.compiler.target></properties><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-data-jpa</artifactId></dependency><dependency><groupId>javax.persistence</groupId><artifactId>javax.persistence-api</artifactId><version>2.2</version></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-websocket</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-validation</artifactId></dependency><dependency><groupId>com.mysql</groupId><artifactId>mysql-connector-j</artifactId><scope>runtime</scope></dependency><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId><optional>true</optional></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-tomcat</artifactId><scope>provided</scope></dependency><dependency><groupId>org.apache.tomcat.embed</groupId><artifactId>tomcat-embed-jasper</artifactId><version>10.1.18</version><scope>provided</scope></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency><dependency><groupId>javax.servlet</groupId><artifactId>jstl</artifactId><version>1.2</version></dependency><dependency><groupId>javax.servlet</groupId><artifactId>javax.servlet-api</artifactId><version>3.1.0</version><scope>provided</scope></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-thymeleaf</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-security</artifactId></dependency><dependency><groupId>org.thymeleaf.extras</groupId><artifactId>thymeleaf-extras-springsecurity6</artifactId></dependency><dependency><groupId>org.springframework.kafka</groupId><artifactId>spring-kafka</artifactId></dependency><!-- https://mvnrepository.com/artifact/com.google.code.gson/gson --><dependency><groupId>com.google.code.gson</groupId><artifactId>gson</artifactId></dependency><dependency><groupId>io.lettuce</groupId><artifactId>lettuce-core</artifactId></dependency><dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-redis</artifactId> </dependency> </dependencies><build><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId><configuration><image><builder>paketobuildpacks/builder-jammy-base:latest</builder></image><excludes><exclude><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId></exclude></excludes></configuration></plugin></plugins><resources><resource><directory>src/main/resources</directory><filtering>true</filtering></resource></resources></build></project>Logs:
Caused by: io.lettuce.core.RedisConnectionException: Connection closed prematurely
I've tried to increas the timeout but did not work.
Connecting with redis on local also give same errorredisStandaloneConfiguration.setHostName("localhost");redisStandaloneConfiguration.setPort(6379);
Updated Redis config
@Configurationpublic class RedisConfig { @Bean public RedisConnectionFactory redisConnectionFactory() { System.out.println("Creating RedisConnectionFactory"); return new LettuceConnectionFactory(); } @Bean public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory redisConnectionFactory) { System.out.println("Creating RedisTemplate"); RedisTemplate<String, Object> template = new RedisTemplate<>(); template.setConnectionFactory(redisConnectionFactory); template.setKeySerializer(new StringRedisSerializer()); template.setValueSerializer(new GenericJackson2JsonRedisSerializer()); return template; }}