redis存取list集合

一 、存取为list类型

1. @RestController

2. @RequestMapping("/test")

3. @Slf4j

4. public class TestController 

5. @Autowired

6. private RedisTemplate redisTemplate;

8. @ApiOperation("redis-savelist")

9. @PostMapping("/redis/save/list")

10. public void redisSaveList() {

11. List<Person> list = getPersonList();

12. //清空

13. while (redisTemplate.opsForList().size("oowwoo") > 0){

14. redisTemplate.opsForList().leftPop("oowwoo");

15. }

16. //存储

17. redisTemplate.opsForList().rightPushAll("oowwoo", list);

19. //取出

20. List<Person> oowwoo = redisTemplate.opsForList().range("oowwoo", 0, -1);

21. log.info(">>>>>>>>>>>>>>>list = {}", oowwoo.toString());

22. Iterator<Person> it = oowwoo.iterator();

23. while(it.hasNext()){

24. Person p = it.next();

25. log.info("person = {}", p.toString());

26. }

27. }

29. private List<Person> getPersonList() {

30. Person p1 = new Person();

31. p1.setId(1L);

32. p1.setName("张一");

33. p1.setAge(11);

35. Person p2 = new Person();

36. p2.setId(2L);

37. p2.setName("张二");

38. p2.setAge(22);

40. Person p3 = new Person();

41. p3.setId(3L);

42. p3.setName("张三");

43. p3.setAge(33);

45. List<Person> list = new ArrayList<>();

46. list.add(p1);

47. list.add(p2);

48. list.add(p3);

49. return list;

50. }

51. }

二 、将list转为json对象存取

1. import com.alibaba.fastjson.JSON;

2. import com.alibaba.fastjson.JSONObject;

5. @Autowired

6. private StringRedisTemplate stringRedisTemplate;

8. //存

9. List<Long> businessIdList = eeFreecarriageShopService.selectBusinessIdInPromotion();

10. stringRedisTemplate.opsForValue().set(RedisConstants.FREECARRIAGE_BUSINESSIDLIST, JSON.toJSON(businessIdList).toString());

12. //取

13. String businessJsonArray = stringRedisTemplate.opsForValue().get(RedisConstants.FREECARRIAGE_BUSINESSIDLIST);

14. List<Long> businessIdList = JSONObject.parseArray(businessJsonArray, Long.class);

 
java 用redisTemplate 的 Operations存取list集合