从 Redis 云 Spring Boot 集成中获取连接被拒绝

Question

我遇到以下错误

org.springframework.data.redis.RedisConnectionFailureException：无法连接到Redis]，根本原因

java.net.ConnectException：连接被拒绝

下面是我的代码

应用程序.属性

# Redis Configuration
spring.cache.type=redis
spring.redis.host=redis-14218.c301.ap-south-1-1.ec2.cloud.redislabs.com
spring.redis.port=14218
spring.redis.password=***
spring.redis.database=0

我的应用程序.Java

package com.serverless.serverlessapi;

import java.time.Duration;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.cache.RedisCacheManagerBuilderCustomizer;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.context.annotation.Bean;
import org.springframework.data.redis.cache.RedisCacheConfiguration;
import org.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.RedisSerializationContext.SerializationPair;

    @SpringBootApplication
    @EnableCaching
    public class Application {
    
        public static void main(String[] args) {
            SpringApplication.run(Application.class, args);
        }
    
        @Bean
        public RedisCacheConfiguration cacheConfiguration() {
            return RedisCacheConfiguration.defaultCacheConfig()
              .entryTtl(Duration.ofMinutes(60))
              .disableCachingNullValues()
              .serializeValuesWith(SerializationPair.fromSerializer(new GenericJackson2JsonRedisSerializer()));
        }
        
        @Bean
        public RedisCacheManagerBuilderCustomizer redisCacheManagerBuilderCustomizer() {
            return (builder) -> builder
              .withCacheConfiguration("leads",
                RedisCacheConfiguration.defaultCacheConfig().entryTtl(Duration.ofMinutes(10)))
              .withCacheConfiguration("leadsCahce2",
                RedisCacheConfiguration.defaultCacheConfig().entryTtl(Duration.ofMinutes(5)));
        }
        
    }

我的休息控制器

package com.serverless.serverlessapi.rest;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.annotation.Cacheable;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import com.serverless.serverlessapi.services.LeadsService;

@RestController
@RequestMapping("/api")
public class LeadsRestController {
    
    @Autowired
    private LeadsService leadsService;

    @Cacheable(value = "leads")
    @GetMapping("/leads2")
    public String getAllLeads2(@RequestParam(name = "limit") int limit, @RequestParam(name = "skip") int skip){
        try {
            return leadsService.getAllLeads2(limit,skip);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return "data not found, please contact to admin";
    }
    
}

我还启用了redis db

Answer 1

检查springboot版本。如果是 3.x 版本，则 Redis 的配置属性已从 spring.redis 移出。到 spring.data.redis。因为 redis 自动配置需要 Spring Data 存在于类路径中。

spring:
  data: # If 2.x then the data key is not needed
    redis:
      host: 127.0.0.1
      port: 6379
      password: 123456
      database: 0
      timeout: 3000