使用java連線Redis,Maven管理操作
阿新 • • 發佈：2020-07-17
pom配置
<?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>redis</groupId> <artifactId>redis</artifactId> <version>1.0-SNAPSHOT</version> <properties> <spring.version>5.0.2.RELEASE</spring.version> <maven.compiler.source>1.8</maven.compiler.source> <maven.compiler.target>1.8</maven.compiler.target> </properties> <dependencies> <dependency> <groupId>redis.clients</groupId> <artifactId>jedis</artifactId> <version>2.8.0</version> </dependency> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.9</version> </dependency> <!-- https://mvnrepository.com/artifact/commons-pool/commons-pool --> <dependency> <groupId>commons-pool</groupId> <artifactId>commons-pool</artifactId> <version>1.6</version> </dependency> <!-- https://mvnrepository.com/artifact/org.springframework.data/spring-data-redis --> <dependency> <groupId>org.springframework.data</groupId> <artifactId>spring-data-redis</artifactId> <version>2.0.3.RELEASE</version> </dependency> </dependencies> </project>
建立db.properties檔案
redis.host=bigdata-hpsk01.huadian.com redis.port=6379 redis.maxIdle=10 redis.minIdle=10 redis.maxTotal=50
書寫工具類
package com.huadian.redisUntil;
import redis.clients.jedis.Jedis;
import redis.clients.jedis.JedisPool;
import redis.clients.jedis.JedisPoolConfig;
public final class JedisPoolUntil {
private static String ADDR = "192.168.59.160";
//Redis的埠號
private static int PORT = 6379;
/* //可用連線例項的最大數目，預設值為8；
//如果賦值為-1，則表示不限制；如果pool已經分配了maxActive個jedis例項，則此時pool的狀態為exhausted(耗盡)。
private static int MAX_ACTIVE = 1024;
//控制一個pool最多有多少個狀態為idle(空閒的)的jedis例項，預設值也是8。
private static int MAX_IDLE = 200;
//等待可用連線的最大時間，單位毫秒，預設值為-1，表示永不超時。如果超過等待時間，則直接丟擲JedisConnectionException；
private static int MAX_WAIT = 10000;
private static int TIMEOUT = 10000;*//*
//在borrow一個jedis例項時，是否提前進行validate操作；如果為true，則得到的jedis例項均是可用的；
private static boolean TEST_ON_BORROW = true;*/
private static int MAXTOTAL=20;
private static int MINIDLE=10;
private static int MAXIDLE=15;
private static JedisPool jedisPool = null;
/**
* 初始化Redis連線池
*/
static {
try {
JedisPoolConfig config = new JedisPoolConfig();
config.setMaxTotal(MAXTOTAL);
config.setMaxIdle(MINIDLE);
config.setMinIdle(MAXIDLE);
jedisPool = new JedisPool(config,ADDR,PORT);
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 獲取Jedis例項
* @return
*/
public synchronized static Jedis getJedis() {
try {
if (jedisPool != null) {
Jedis resource = jedisPool.getResource();
return resource;
} else {
return null;
}
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
/**
* 釋放jedis資源
* @param jedis
*/
public static void returnResource(final Jedis jedis) {
if (jedis != null) {
jedisPool.returnResource(jedis);
}
}
}
書寫測試類
package com.huadian.jedis;
import com.huadian.redisUntil.JedisPoolUntil;
import org.junit.Test;
import redis.clients.jedis.Jedis;
import redis.clients.jedis.JedisPool;
import redis.clients.jedis.JedisPoolConfig;
public class JedisDemo {
private Jedis jedis = null;
/**
* 單連線
*/
@Test
public void jedisSingleConn(){
String host = "192.168.59.160";
int port = 6379;
Jedis jedis = new Jedis(host,port);
jedis.set("name","張三");
jedis.set("age","18");
String s = jedis.get("name");
String s1 = jedis.get("age");
System.out.println(s);
System.out.println(s1);
}
/**
* 連線池連線
*/
@Test
public void jedisPoolConn(){
JedisPoolConfig jedisPoolConfig = new JedisPoolConfig();
jedisPoolConfig.setMaxTotal(20);
jedisPoolConfig.setMinIdle(10);
jedisPoolConfig.setMaxIdle(15);
JedisPool jedisPool = new JedisPool(jedisPoolConfig,"192.168.59.160",6379);
Jedis jedis = jedisPool.getResource();
//取資料
String s = jedis.get("name");
String s1 = jedis.get("age");
System.out.println(s);
System.out.println(s1);
}
/**
* 連線池連線
* 工具類
*/
@Test
public void jedisPoolConn1(){
Jedis jedis1 = JedisPoolUntil.getJedis();
//取資料
String s = jedis1.get("name");
String s1 = jedis1.get("age");
System.out.println(s);
System.out.println(s1);
}
}
補充知識：JAVA使用Redis所需的MAVEN的POM檔案
redis不僅可以通過命令列進行操作，同時redis也可以通過javaAPI進行操作,這是操作redis所需的依賴
<dependencies>
<dependency>
<groupId>redis.clients</groupId>
<artifactId>jedis</artifactId>
<version>2.9.0</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.testng</groupId>
<artifactId>testng</artifactId>
<version>6.14.3</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.0</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
<encoding>UTF-8</encoding>
<!-- <verbal>true</verbal>-->
</configuration>
</plugin>
</plugins>
</build>
以上這篇使用java連線Redis,Maven管理操作就是小編分享給大家的全部內容了，希望能給大家一個參考，也希望大家多多支援我們。