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我们在一个项目中使用了 Redis 缓存。我们已经实现了 Mockito，我们正在模拟存储库层，但 redisTemplate 被用于从服务层的缓存中获取数据，我们正在尝试模拟 RedisTemplate 但无法这样做

@MockBean
private RedisTemplate<Object, Object> redisTemplate;

    @Test
    public void testGetProductHappyPath() {
        log.info(ApplicationConstantsTest.METHOD_ENTER_LABEL);

        when(redisTemplate.keys(ArgumentMatchers.any())).thenReturn(null);
        final RequestBuilder requestBuilder = MockMvcRequestBuilders.get(ApplicationConstantsTest.PRODUCT_WALLET_OF_PRODUCT, Integer.MAX_VALUE)
                .accept(MediaType.APPLICATION_JSON);

        try {
            mockMvc.perform(requestBuilder).andExpect(status().isOk());
            log.info(ApplicationConstantsTest.METHOD_EXIT_LABEL);
        } catch (final Exception e) {
            log.error(ApplicationConstantsTest.METHOD_EXCEPTION_LABEL, e);
        } 

    }

但我们得到了这个：

Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.data.redis.core.RedisKeyValueAdapter]: Constructor threw exception; nested exception is java.lang.IllegalArgumentException: ConnectionFactory must not be null!
    at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:217)
    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:117)
    at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:309)
    ... 65 common frames omitted
Caused by: java.lang.IllegalArgumentException: ConnectionFactory must not be null!
    at org.springframework.util.Assert.notNull(Assert.java:201)
    at org.springframework.data.redis.listener.RedisMessageListenerContainer.setConnectionFactory(RedisMessageListenerContainer.java:311)
    at org.springframework.data.redis.core.RedisKeyValueAdapter.initMessageListenerContainer(RedisKeyValueAdapter.java:712)
    at org.springframework.data.redis.core.RedisKeyValueAdapter.<init>(RedisKeyValueAdapter.java:196)
    at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:64)
    at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:500)
    at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:481)
    at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:204)
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