【redis，1】java操作redis： 將string、list、map、自定義的物件儲存到redis中
阿新 • • 發佈：2019-01-24
一、操作string 、list 、map 物件
1、引入jar：
jedis-2.1.0.jar
2、程式碼
/**
* @param args
*/
public static void main(String[] args) {
//連線redis服務
Jedis jedis = new Jedis("192.168.88.15",6379);
//密碼驗證-如果你沒有設定redis密碼可不驗證即可使用相關命令
// jedis.auth("abcdefg");
//簡單的key-value 儲存
1、自定義pojo 實現Serializable 介面： package cn.mingyuan.redis; import java.io.Serializable; /** * 測試用pojo，實現了Serializable，以便進行系列化操作 * * @author mingyuan * */ publicclass Person implements Serializable { private static final long serialVersionUID = -3562550857760039655L; private String name; private int age; public Person(){} public Person(String name, int age) { super(); this.name = name; this.age = age; } public String getName() { return name; } public void setName(String name) { this.name = name; } public int getAge() { return age; } public void setAge(int age) { this.age = age; } @Override public String toString() { return "Person [name=" + name + ", age=" + age + "]"; } } 2、測試類： package cn.mingyuan.redis; import java.io.ByteArrayInputStream; import java.io.ByteArrayOutputStream; import java.io.IOException; import java.io.ObjectInputStream; import java.io.ObjectOutputStream; import redis.clients.jedis.Jedis; publicclass Test { /** * @param args * @throws IOException * @throws ClassNotFoundException */ public static void main(String[] args) throws IOException, ClassNotFoundException { // Jedis redis = new Jedis("192.168.88.15"); Jedis redis = new Jedis("192.168.88.15", 6379); // connect可以不要，因為在執行set操作的時候會先進行判斷客戶端是否於伺服器端建立了連線，若無，則啟動連線過程 redis.connect(); String set = redis.set("mingyuan", "1"); System.out.println(" set result \t" + set); redis.incr("mingyuan"); String string = redis.get("mingyuan"); System.out.println(" get result of key 'mingyuan' \t" + string); // 下面是對物件進行儲存的測試程式碼 ByteArrayOutputStream bos = new ByteArrayOutputStream(); ObjectOutputStream oos = new ObjectOutputStream(bos); Person person = new Person("liudehua" ,22); oos.writeObject(person); byte[] byteArray = bos.toByteArray(); oos.close(); bos.close(); String setObjectRet = redis.set("mingyuan".getBytes(), byteArray); System.out.println(" set object return \t" + setObjectRet); byte[] bs = redis.get("mingyuan".getBytes()); ByteArrayInputStream bis = new ByteArrayInputStream(bs); ObjectInputStream inputStream = new ObjectInputStream(bis); Person readObject = (Person) inputStream.readObject(); System.out.println(" read object \t" + readObject.toString()); inputStream.close(); bis.close(); redis.disconnect(); } }
1、自定義pojo 實現Serializable 介面： package cn.mingyuan.redis; import java.io.Serializable; /** * 測試用pojo，實現了Serializable，以便進行系列化操作 * * @author mingyuan * */ publicclass Person implements Serializable { private static final long serialVersionUID = -3562550857760039655L; private String name; private int age; public Person(){} public Person(String name, int age) { super(); this.name = name; this.age = age; } public String getName() { return name; } public void setName(String name) { this.name = name; } public int getAge() { return age; } public void setAge(int age) { this.age = age; } @Override public String toString() { return "Person [name=" + name + ", age=" + age + "]"; } } 2、測試類： package cn.mingyuan.redis; import java.io.ByteArrayInputStream; import java.io.ByteArrayOutputStream; import java.io.IOException; import java.io.ObjectInputStream; import java.io.ObjectOutputStream; import redis.clients.jedis.Jedis; publicclass Test { /** * @param args * @throws IOException * @throws ClassNotFoundException */ public static void main(String[] args) throws IOException, ClassNotFoundException { // Jedis redis = new Jedis("192.168.88.15"); Jedis redis = new Jedis("192.168.88.15", 6379); // connect可以不要，因為在執行set操作的時候會先進行判斷客戶端是否於伺服器端建立了連線，若無，則啟動連線過程 redis.connect(); String set = redis.set("mingyuan", "1"); System.out.println(" set result \t" + set); redis.incr("mingyuan"); String string = redis.get("mingyuan"); System.out.println(" get result of key 'mingyuan' \t" + string); // 下面是對物件進行儲存的測試程式碼 ByteArrayOutputStream bos = new ByteArrayOutputStream(); ObjectOutputStream oos = new ObjectOutputStream(bos); Person person = new Person("liudehua" ,22); oos.writeObject(person); byte[] byteArray = bos.toByteArray(); oos.close(); bos.close(); String setObjectRet = redis.set("mingyuan".getBytes(), byteArray); System.out.println(" set object return \t" + setObjectRet); byte[] bs = redis.get("mingyuan".getBytes()); ByteArrayInputStream bis = new ByteArrayInputStream(bs); ObjectInputStream inputStream = new ObjectInputStream(bis); Person readObject = (Person) inputStream.readObject(); System.out.println(" read object \t" + readObject.toString()); inputStream.close(); bis.close(); redis.disconnect(); } }