基于springboot2.x 的redis配置及使用

水深无声 2022-05-10 12:36 194阅读 0赞

# 使用背景 #

*  目前公司使用的都是springboot1.5.x + oauth2 + redis做权限认证服务；鉴于学习oauth2的目的，搭建简单的demo
 *  demo工程使用springboot2.0.6 为基础构建

# 问题 #

出现警告：无法连接到redis

2018-10-18 12:00:50.136  WARN 1996 --- [io-10110-exec-2] o.s.s.o.provider.endpoint.TokenEndpoint  : Handling error: RedisConnectionFailureException, Unable to connect to Redis; nested exception is io.lettuce.core.RedisConnectionException: Unable to connect to 172.19.103.47:6379
    2018-10-18 12:00:50.324  WARN 1996 --- [io-10110-exec-2] .m.m.a.ExceptionHandlerExceptionResolver : Resolved exception caused by handler execution: org.springframework.data.redis.RedisConnectionFailureException: Unable to connect to Redis; nested exception is io.lettuce.core.RedisConnectionException: Unable to connect to 172.19.103.47:6379

处理前pom文件：

<dependency>
    			<groupId>org.springframework.boot</groupId>
    			<artifactId>spring-boot-starter-security</artifactId>
    		</dependency>
    		<dependency>
    			<groupId>org.springframework.boot</groupId>
    			<artifactId>spring-boot-starter-data-redis</artifactId>
    		</dependency>
    		<dependency>
    			<groupId>org.springframework.security.oauth</groupId>
    			<artifactId>spring-security-oauth2</artifactId>
    			<version>${oauth2.version}</version>
    		</dependency>
    		<dependency>
    			<groupId>org.springframework.boot</groupId>
    			<artifactId>spring-boot-starter-web</artifactId>
    		</dependency>
    
    		<dependency>
    			<groupId>redis.clients</groupId>
    			<artifactId>jedis</artifactId>
    		</dependency>
    
    		<dependency>
    			<groupId>org.springframework.boot</groupId>
    			<artifactId>spring-boot-devtools</artifactId>
    			<scope>runtime</scope>
    		</dependency>

再网上各种处理方式都试了一遍，修改redis初始化方式也没解决问题，后面在一篇博客上（[https://blog.csdn.net/weixin\_39723544/article/details/80743074?utm\_source=blogxgwz2][https_blog.csdn.net_weixin_39723544_article_details_80743074_utm_source_blogxgwz2]）找到解决方式，特此记录备忘；

修改pom文件配置。

<dependency>
    			<groupId>org.springframework.boot</groupId>
    			<artifactId>spring-boot-starter-data-redis</artifactId>
    			
    			<exclusions>
    				<exclusion>
    					<groupId>redis.clients</groupId>
    					<artifactId>jedis</artifactId>
    				</exclusion>
    				<exclusion>
    					<groupId>io.lettuce</groupId>
    					<artifactId>lettuce-core</artifactId>
    				</exclusion>
    			</exclusions>
    		</dependency>
    
            
            
            <dependency>
                <groupId>org.apache.commons</groupId>
                <artifactId>commons-pool2</artifactId>
                <version>2.5.0</version>
            </dependency>
    
            
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>fastjson</artifactId>
                <version>1.2.47</version>
            </dependency>

application.yml配置：

#boot2.x配置
    spring:
      redis:
        database: 0 # Database index used by the connection factory.
        timeout: 0 # Connection timeout in milliseconds.
        jedis:
          pool:
            max-active: 8 # 
            max-idle: 8 # 
            max-wait: -1 # 
            min-idle: 1 # 
    
    # boot1.x配置
    spring:
      datasource:
      redis:
        database: 0 # Database index used by the connection factory.
        timeout: 0 # Connection timeout in milliseconds.
        pool:
          max-active: 8 #
          max-idle: 8 # 
          max-wait: -1 # 
          min-idle: 1 #

[https_blog.csdn.net_weixin_39723544_article_details_80743074_utm_source_blogxgwz2]: https://blog.csdn.net/weixin_39723544/article/details/80743074?utm_source=blogxgwz2