把List转换成JSON,存储到Redis,取出来的时候,再把JSON转换成List。
User user = new User(); user.setId(123); user.setName("fighter"); User user1 = new User(); user1.setId(1232); user1.setName("ssss"); List list = new ArrayList(); list.add(user); list.add(user1); String json=JSONObject.toJSONString(list); System.out.println(json); redisService.set("user",json); String username = redisService.get("user"); List newList=JSONObject.parseArray(username, User.class); System.out.println(newList.size());
其中用到阿里的fastjson,maven的pom:
<dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>1.2.4</version> </dependency>