03.Jedis使用

最新推荐文章于 2023-03-02 17:27:04 发布

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Jedis使用

新建工程，引入依赖

<dependencies>
    <dependency>
        <groupId>redis.clients</groupId>
        <artifactId>jedis</artifactId>
        <version>2.9.0</version>
    </dependency>
</dependencies>

测试类

package com.atguigu.jedis;

import redis.clients.jedis.Jedis;

public class JedisDemo1 {
    public static void main(String[] args) {
        // 创建Jedis对象
        Jedis jedis = new Jedis("192.168.19.128", 6379);

        // 测试
        String ping = jedis.ping();
        System.out.println(ping);
    }
}

运行结果：

Exception in thread "main" redis.clients.jedis.exceptions.JedisConnectionException: java.net.SocketTimeoutException: connect timed out
	at redis.clients.jedis.Connection.connect(Connection.java:207)
	at redis.clients.jedis.BinaryClient.connect(BinaryClient.java:93)
	at redis.clients.jedis.Connection.sendCommand(Connection.java:126)
	at redis.clients.jedis.Connection.sendCommand(Connection.java:121)
	at redis.clients.jedis.BinaryClient.ping(BinaryClient.java:106)
	at redis.clients.jedis.BinaryJedis.ping(BinaryJedis.java:195)
	at com.atguigu.jedis.JedisDemo1.main(JedisDemo1.java:11)
Caused by: java.net.SocketTimeoutException: connect timed out
	at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
	at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:81)
	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
	at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162)
	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
	at java.net.Socket.connect(Socket.java:606)
	at redis.clients.jedis.Connection.connect(Connection.java:184)
	... 6 more

Process finished with exit code 1

连接超时

检查配置文件：

# bind 127.0.0.1 -::1
单机访问已注释
protected-mode no
保护模式已关闭

关闭防火墙

systemctl status firewalld.service 

systemctl stop firewalld.service

暴露6379端口

firewall-cmd --permanent --add-port=6379/tcp

firewall-cmd --reload

重启redis

redis-cli shutdown

再次运行

PONG

Process finished with exit code 0