一个Redis存读对象实例的小例子

最新推荐文章于 2025-06-23 10:28:10 发布

六彡翼彡天使灬

最新推荐文章于 2025-06-23 10:28:10 发布

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文章标签： redis

本文介绍了一种使用Redis存储Java对象的方法。通过序列化和反序列化技术，将Java对象转换为字节数组，再将这些字节数组存入Redis中。文章提供了具体的实现代码，包括如何设置Jedis连接池、序列化工具类及测试用例。

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Redis没有直接存储对象的方法，不过Redis要以存储字节，所以可以先把对象自己写的一个序列化和反序列化的方法

package com.comtop;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import org.junit.Before;
import org.junit.Test;
import redis.clients.jedis.Jedis;
import redis.clients.jedis.JedisPool;
import redis.clients.jedis.JedisPoolConfig;
/**
* @ProjectName:Skeleton
* @PackageName:com.comtop
* @Verson :0.1
* @CreateUser :Test
* @CreateDate :2014-7-19上午10:47:11
* @UseFor :
*/
public class JedisTest {
JedisPool pool;
Jedis jedis;
@Before
public void setUp() {
JedisPoolConfig config = new JedisPoolConfig();
pool = new JedisPool(config, "127.0.0.1");
jedis = pool.getResource();
// 密码验证
jedis.auth("password");
}
@Test
public void test() throws InterruptedException {
Person person = new Person("123", "alan");
jedis.set("person:123".getBytes(), SerializeUtil.ObjTOSerialize(person));
person = new Person("234", "bruce");
jedis.set("person:234".getBytes(), SerializeUtil.ObjTOSerialize(person));
Person per = getObject("234");
System.out.println(per);
}
private Person getObject(String id) {
byte[] person = jedis.get(("person:" + id).getBytes());
return (Person) SerializeUtil.unSerialize(person);
}
}
class Person implements Serializable {
private static final long serialVersionUID = 1L;
private String id;
private String name;
/**
* @param id
* @param name
*/
Person(String id, String name) {
super();
this.id = id;
this.name = name;
}
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;
}
@Override
public String toString()
{
return this.id +" "+this.name ;
}
}
class SerializeUtil {
/**
*
* @CreateUser:
* @ReturnType:byte[]
* @param obj
* @return
* @CreateDate:2014-7-19上午11:38:19
* @SerializeUtilUseFor :序列化一个对象
*/
public static byte[] ObjTOSerialize(Object obj) {
ObjectOutputStream oos = null;
ByteArrayOutputStream byteOut = null;
try {
byteOut = new ByteArrayOutputStream();
oos = new ObjectOutputStream(byteOut);
oos.writeObject(obj);
byte[] bytes = byteOut.toByteArray();
return bytes;
} catch (Exception e) {
}
return null;
}
/**
*
* @CreateUser:Test
* @ReturnType:Object
* @param bytes
* @return
* @CreateDate:2014-7-19上午11:38:29
* @SerializeUtilUseFor :反序列化
*/
public static Object unSerialize(byte[] bytes) {
ByteArrayInputStream in = null;
try {
in = new ByteArrayInputStream(bytes);
ObjectInputStream objIn = new ObjectInputStream(in);
return objIn.readObject();
} catch (Exception e) {
}
return null;
}
}