redis java对象操作

阿使得肌肤·

　　使用Jedis客户端
　　1. java 对象，需序列化



public class Person implements Serializable {
private int id;
private String name;
public Person(int id, String name) {
this.id = id;
this.name = name;
}
public int getId() {
return id;
}
public String getName() {
return name;
}
　　2. 序列化类



public class SerializeUtil {
public static byte[] serialize(Object object) {
ObjectOutputStream oos = null;
ByteArrayOutputStream baos = null;
try {
// 序列化

baos = new ByteArrayOutputStream();
oos = new ObjectOutputStream(baos);
oos.writeObject(object);
byte[] bytes = baos.toByteArray();
return bytes;
} catch (Exception e) {
}
return null;
}
public static Object unserialize(byte[] bytes) {
ByteArrayInputStream bais = null;
try {
// 反序列化

bais = new ByteArrayInputStream(bytes);
ObjectInputStream ois = new ObjectInputStream(bais);
return ois.readObject();
} catch (Exception e) {
}
return null;
}
}
　　3. 对象的操作测试



public class SerializeTest {
/**
* @param args
*/
private static Jedis jedis;
public static void main(String[] args) throws InterruptedException {
jedis=new Jedis("127.0.0.1",6379);
setObject();
Thread.sleep(1000);
Person person =getObject(100);
System.out.println(jedis.keys("*"));
if(person!=null){
System.out.println(person.getId());
System.out.println(person.getName());   
}
delOject();
System.out.println(jedis.keys("*"));
person = getObject(100);
if(person!=null){
System.out.println(person.getId());
System.out.println(person.getName());   
}else{
System.out.println("key not exist");
}
}
public static Person getObject(int id) {
byte[] person = jedis.get(("person:" + id).getBytes());
return (Person) SerializeUtil.unserialize(person);
}
public static void setObject() {
Person person = new Person(100, "alan");
jedis.set("person:100".getBytes(), SerializeUtil.serialize(person));
person = new Person(101, "bruce");
jedis.set("person:101".getBytes(), SerializeUtil.serialize(person));
}
public static void delOject(){
boolean isExist=jedis.exists("person:100".getBytes());
if(isExist){
System.out.println("delete the key");
jedis.del("person:100".getBytes());
}
}
}