【学习之路】spring boot 整合redis 报错

一. 踩坑原因

报错内容：

2022-04-27 17:34:24.004  WARN 2159230 --- [           main] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'redisController' defined in URL [jar:file:/usr/local/sbin/demo-web-0.0.1-SNAPSHOT.jar!/BOOT-INF/classes!/com/dx/demoweb/controller/RedisController.class]: Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.beans.factory.NoUniqueBeanDefinitionException: No qualifying bean of type 'org.springframework.data.redis.core.RedisTemplate<?, ?>' available: expected single matching bean but found 2: redisTemplate,stringRedisTemplate
2022-04-27 17:34:24.067  INFO 2159230 --- [           main] o.apache.catalina.core.StandardService   : Stopping service [Tomcat]
2022-04-27 17:34:24.102  INFO 2159230 --- [           main] ConditionEvaluationReportLoggingListener : 

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2022-04-27 17:34:24.148 ERROR 2159230 --- [           main] o.s.b.d.LoggingFailureAnalysisReporter   : 

***************************
APPLICATION FAILED TO START
***************************

Description:

Parameter 0 of constructor in com.dx.demoweb.controller.RedisController required a single bean, but 2 were found:
        - redisTemplate: defined by method 'redisTemplate' in class path resource [org/springframework/boot/autoconfigure/data/redis/RedisAutoConfiguration.class]
        - stringRedisTemplate: defined by method 'stringRedisTemplate' in class path resource [org/springframework/boot/autoconfigure/data/redis/RedisAutoConfiguration.class]


Action:

Consider marking one of the beans as @Primary, updating the consumer to accept multiple beans, or using @Qualifier to identify the bean that should be consumed

2022-04-27 17:34:25.085  WARN 2159230 --- [       Thread-3] c.a.n.common.http.HttpClientBeanHolder   : [HttpClientBeanHolder] Start destroying common HttpClient
2022-04-27 17:34:25.086  WARN 2159230 --- [       Thread-3] c.a.n.common.http.HttpClientBeanHolder   : [HttpClientBeanHolder] Destruction of the end

二. 踩坑之前

我之前用的构造函数的方式注入

    private RedisTemplate redisTemplate;

    @Autowired
    RedisController(RedisTemplate redisTemplate){
        this.redisTemplate = redisTemplate;
    }

二. 解决方法

我的解决方式：

    @Autowired
    @Qualifier("redisTemplate")
    private RedisTemplate redisTemplate;

PS

希望对看到本文的人有所帮助，如果你有更好的建议或思路欢迎留言。