自动装配同一类的两个不同的bean

2022-01-13 00:00:00 annotations spring java

我有一个封装了一个连接池的类，该类从一个spring配置中获取它的连接细节，如下所示:

I have a class which wraps a connection pool, the class gets its connection details from a spring configuration as shown below:

<bean id="jedisConnector" class="com.legolas.jedis.JedisConnector" init-method="init" destroy-method="destroy">
    <property name="host" value="${jedis.host}" />
    <property name="port" value="${jedis.port}" />
</bean>

此 bean 稍后在服务中使用，并使用 @Autowire 注释自动装配.

This bean is later used in a service and is autowired with the @Autowire annotation.

我的问题是，我怎样才能复制这个 bean 并给它不同的连接细节，然后在服务中 @Autowire 它.意思除了上面我还有:

My question is, how can i duplicate this bean and give it different connection details and then @Autowire it in the service. meaning In addition to above I will have :

<bean id="jedisConnectorPOD" class="com.legolas.jedis.JedisConnector" init-method="init" destroy-method="destroy">
    <property name="host" value="${jedis.pod.host}" />
    <property name="port" value="${jedis.pod.port}" />
</bean>

在服务中:

@Autowired //bean of id jedisConnector
JedisConnector beanA;

@Autowired //bean of id jedisConnectorPOD
JedisConnector beanB;

推荐答案

您可以将 @Autowired 与 @Qualifier 结合使用，但在这种情况下而不是 @Autowired，我建议使用 @Resource:

You can combine @Autowired with @Qualifier, but in this case instead of @Autowired, I suggest using @Resource:

@Resource(name="jedisConnector")
JedisConnector beanA;

@Resource(name="jedisConnectorPOD")
JedisConnector beanB;

甚至更简单:

@Resource
JedisConnector jedisConnector;

@Resource
JedisConnector jedisConnectorPOD;

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