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通过Redis中的List数据类型存储，其核心就是通过opsForList()
public static void main(String[] args) {
List studentsAll = new ArrayList();
StringRedisTemplate stringRedisTemplate = new StringRedisTemplate();
List students = new ArrayList();
for (Student students : students) {
stringRedisTemplate.opsForList().rightPush("student", JSON.toJSONString(students));
}
List studentList = stringRedisTemplate.opsForList()
.range("student", 0, -1);
// 将redis中的数据转换为对象集合
for (String studentString : studentList) {
studentsAll.add(BeanUtils.copyProperties(studentString,Student.class));
}
}
实际上还可以通过ObjectMapper方法
public class JsonUtils{
private static final ObjectMapper om = createObjectMapper();
public static ObjectMapper createObjectMapper() {
ObjectMapper om = new ObjectMapper();
// 反序列化时，忽略Javabean中不存在的属性，而不是抛出异常
om.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
// 忽略入参没有任何属性导致的序列化报错
om.configure(SerializationFeature.FAIL_ON_EMPTY_BEANS,false);
return om;
}
public static List toListOfObject(String json, Class clazz, ObjectMapper om) {
try {
@SuppressWarnings("unchecked") Class arrayClass = (Class) Class
.forName("[L" + clazz.getName() + ";");
return Lists.newArrayList(om.readValue(json, arrayClass));
} catch (IOException | ClassNotFoundException e) {
log.error("json={}, clazz={}", json, clazz, e);
throw new JsonException(e);
}
}
}
List studentsAll = new ArrayList();
StringRedisTemplate stringRedisTemplate = new StringRedisTemplate();
List students = new ArrayList();
// 将student集合存放到redis中
stringRedisTemplate.opsForValue().set("student",JSON.toJSONString(students));
// 获取student对象
String student = stringRedisTemplate.opsForValue().get("student");
// 解析对象
List st = JsonUtils.toListOfObject(student, Student.class);
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