RedisTemplate 默認使用的序列化機制為 JdkSerializationRedisSerializer，序列化后的值一般如下圖。  <br/> 我們可以自定義序列化機制，比如將對象序列化為 JSON 字符串。步驟如下： **1. 配置類中自定義RedisTemplate模板** ```java @Configuration public class CustomRedisConfig { @Bean("stuRedisTemplate") public RedisTemplate<Object, Student> stuRedisTemplate(RedisConnectionFactory factory) throws UnknownHostException { RedisTemplate<Object, Student> template = new RedisTemplate<>(); template.setConnectionFactory(factory); //采用JSON的序列化機制 Jackson2JsonRedisSerializer<Student> ser = new Jackson2JsonRedisSerializer<>(Student.class); template.setDefaultSerializer(ser); return template; } } ``` **2. 使用自定義的模板類操作Redis數據庫** ```java @RunWith(SpringRunner.class) @SpringBootTest public class Redis01ApplicationTests { @Autowired @Qualifier("stuRedisTemplate") private RedisTemplate<Object, Student> stuRedisTemplate; @Test public void test03() { Student student1 = new Student(200, "張三", 25); stuRedisTemplate.opsForValue().set("stu-02", student1); Student student2 = (Student) stuRedisTemplate.opsForValue().get("stu-02"); System.out.println(student2); //Student(id=200, name=張三, age=25) } } ``` **3. 保存到Redis數據庫的JSON字符串**