java 用redisTemplate 的 Operations存取list集合

一 、存取为list类型

1. @RestController
2. @RequestMapping( "/test")
3. @Slf4j
4. public class TestController {
5.  
6. @Autowired
7. private RedisTemplate redisTemplate;
8.  
9. @ApiOperation( "redis-savelist")
10. @PostMapping( "/redis/save/list")
11. public void redisSaveList() {
12. List<Person> list = getPersonList();
13. //清空
14. while (redisTemplate.opsForList().size("oowwoo") > 0){
15. redisTemplate.opsForList().leftPop( "oowwoo");
16. }
17. //存储
18. redisTemplate.opsForList().rightPushAll( "oowwoo", list);
19.  
20. //取出
21. List<Person> oowwoo = redisTemplate.opsForList().range("oowwoo", 0, -1);
22. log.info( ">>>>>>>>>>>>>>>list = {}", oowwoo.toString());
23. Iterator<Person> it = oowwoo.iterator();
24. while(it.hasNext()){
25. Person p = it.next();
26. log.info( "person = {}", p.toString());
27. }
28. }
29.  
30. private List<Person> getPersonList() {
31. Person p1 = new Person();
32. p1.setId( 1L);
33. p1.setName( "张一");
34. p1.setAge( 11);
35.  
36. Person p2 = new Person();
37. p2.setId( 2L);
38. p2.setName( "张二");
39. p2.setAge( 22);
40.  
41. Person p3 = new Person();
42. p3.setId( 3L);
43. p3.setName( "张三");
44. p3.setAge( 33);
45.  
46. List<Person> list = new ArrayList<>();
47. list.add(p1);
48. list.add(p2);
49. list.add(p3);
50. return list;
51. }
52. }

 

二 、将list转为json对象存取

1. import com.alibaba.fastjson.JSON;
2. import com.alibaba.fastjson.JSONObject;
3.  
4.  
5. @Autowired
6. private StringRedisTemplate stringRedisTemplate;
7.  
8. //存
9. List< Long> businessIdList = eeFreecarriageShopService.selectBusinessIdInPromotion();
10. stringRedisTemplate.opsForValue(). set(RedisConstants.FREECARRIAGE_BUSINESSIDLIST, JSON.toJSON(businessIdList).toString());
11.  
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