問題描述

pom.xml:

<!-- 添加redis支持 --> <dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-redis</artifactId> </dependency> <dependency><groupId>redis.clients</groupId><artifactId>jedis</artifactId><version>2.6.2</version> </dependency> <dependency><groupId>org.springframework.data</groupId><artifactId>spring-data-redis</artifactId><version>1.5.0.RELEASE</version> </dependency>

RedisCacheConfig.java:

@Bean(name='jedisConnectionFactory') JedisConnectionFactory jedisConnectionFactory() {JedisConnectionFactory factory = new JedisConnectionFactory();return factory; } @Bean RedisTemplate<String, Object> redisTemplate() {RedisTemplate<String, Object> redisTemplate = new RedisTemplate<String, Object>();redisTemplate.setConnectionFactory(jedisConnectionFactory());return redisTemplate; }

工具類：

@SuppressWarnings('unchecked')@Componentpublic class RedisUtil { @SuppressWarnings('rawtypes')@Autowired private RedisTemplate redisTemplate;public void test() { redisTemplate.opsForValue().set('q', 123);//這里的redisTemplate=null 不知為何？ }}

調用test()方法 報java.lang.NullPointerException 求指點明燈

問題解答

你用的是springboot集成，單元測試卻是junit的，沒有納入springboot的環境，當然是有問題的了。