【Java】將Java物件序列化/反序列化為JSON,並寫入redis
阿新 • • 發佈:2019-02-02
RedisUtil類和spring_config.xml配置檔案在這篇文章:【Redis】Spring整合Redis 中給出了,這裡不再贅述。
① 依賴匯入
<!-- fastjson --> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>1.2.12</version> </dependency>
②User實體類
package com.cqh.PojoToJson; /** * Created by yl1794 on 2018/4/2. */ public class User { private String id; private String name; private String password; public String getId() { return id; } public void setId(String id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getPassword() { return password; } public void setPassword(String password) { this.password = password; } @Override public String toString() { return "User [id=" + id + ", name=" + name + ", password=" + password + "]"; } }
③測試類
package com.cqh.PojoToJson; import com.alibaba.fastjson.JSON; import com.cqh.Cache_Spring_Redis.RedisUtil; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; /** * Created by yl1794 on 2018/4/2. */ public class Test_PojoToJson_Redis { public static void main(String[] args){ ApplicationContext context = new ClassPathXmlApplicationContext("spring_config.xml"); RedisUtil redisUtil = (RedisUtil)context.getBean("redisUtil"); User userToJson = new User(); userToJson.setId("150327003"); userToJson.setName("cqh"); userToJson.setPassword("123456"); // 將Java物件序列化為JSON,並寫入redis System.out.println(JSON.toJSONString(userToJson)); redisUtil.set("userToJson", JSON.toJSONString(userToJson)); // 直接取出來是一個Object System.out.println( redisUtil.get("userToJson")); // 反序列化為User物件 User jsonToUser = JSON.parseObject( redisUtil.get("userToJson").toString(), User.class); System.out.println(jsonToUser); } }
④結果