使用java连接Redis,Maven管理操作

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>

创建db.properties文件

redis.host=bigdata-hpsk01.huadian.comredis.port=6379redis.maxIdle=10redis.minIdle=10redis.maxTotal=50

书写工具类

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的端口号 private static int PORT = 6379; /* //可用连接实例的最大数目，默认值为8； //如果赋值为-1，则表示不限制；如果pool已经分配了maxActive个jedis实例，则此时pool的状态为exhausted(耗尽)。 private static int MAX_ACTIVE = 1024; //控制一个pool最多有多少个状态为idle(空闲的)的jedis实例，默认值也是8。 private static int MAX_IDLE = 200; //等待可用连接的最大时间，单位毫秒，默认值为-1，表示永不超时。如果超过等待时间，则直接抛出JedisConnectionException； private static int MAX_WAIT = 10000; private static int TIMEOUT = 10000;*//* //在borrow一个jedis实例时，是否提前进行validate操作；如果为true，则得到的jedis实例均是可用的； 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连接池 */ 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(); } } /** * 获取Jedis实例 * @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; } } /** * 释放jedis资源 * @param jedis */ public static void returnResource(final Jedis jedis) { if (jedis != null) { jedisPool.returnResource(jedis); } }}

书写测试类

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; /** * 单连接 */ @Test public void jedisSingleConn(){ String host = '192.168.59.160'; int port = 6379; Jedis jedis = new Jedis(host, port); jedis.set('name','张三'); jedis.set('age','18'); String s = jedis.get('name'); String s1 = jedis.get('age'); System.out.println(s); System.out.println(s1); } /** * 连接池连接 */ @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(); //取数据 String s = jedis.get('name'); String s1 = jedis.get('age'); System.out.println(s); System.out.println(s1); } /** * 连接池连接 * 工具类 */ @Test public void jedisPoolConn1(){ Jedis jedis1 = JedisPoolUntil.getJedis(); //取数据 String s = jedis1.get('name'); String s1 = jedis1.get('age'); System.out.println(s); System.out.println(s1); }}

补充知识：JAVA使用Redis所需的MAVEN的POM文件

redis不仅可以通过命令行进行操作，同时redis也可以通过javaAPI进行操作,这是操作redis所需的依赖

<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>

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