您好,登錄后才能下訂單哦!
這篇文章主要講解了如何使用java連接Redis,Maven,內容清晰明了,對此有興趣的小伙伴可以學習一下,相信大家閱讀完之后會有幫助。
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>
創建db.properties文件
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的端口號 private static int PORT = 6379; /* //可用連接實例的最大數目,默認值為8; //如果賦值為-1,則表示不限制;如果pool已經分配了maxActive個jedis實例,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(空閑的)的jedis實例,默認值也是8。 private static int MAX_IDLE = 200; //等待可用連接的最大時間,單位毫秒,默認值為-1,表示永不超時。如果超過等待時間,則直接拋出JedisConnectionException; private static int MAX_WAIT = 10000; private static int TIMEOUT = 10000;*//* //在borrow一個jedis實例時,是否提前進行validate操作;如果為true,則得到的jedis實例均是可用的; 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連接池 */ 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(); } } /** * 獲取Jedis實例 * @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; } } /** * 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; /** * 單連接 */ @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); } /** * 連接池連接 */ @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(); //取數據 String s = jedis.get("name"); String s1 = jedis.get("age"); System.out.println(s); System.out.println(s1); } /** * 連接池連接 * 工具類 */ @Test public void jedisPoolConn1(){ Jedis jedis1 = JedisPoolUntil.getJedis(); //取數據 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文件
redis不僅可以通過命令行進行操作,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>
看完上述內容,是不是對如何使用java連接Redis,Maven有進一步的了解,如果還想學習更多內容,歡迎關注億速云行業資訊頻道。
免責聲明:本站發布的內容(圖片、視頻和文字)以原創、轉載和分享為主,文章觀點不代表本網站立場,如果涉及侵權請聯系站長郵箱:is@yisu.com進行舉報,并提供相關證據,一經查實,將立刻刪除涉嫌侵權內容。