pom配置
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<? 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
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redis.host=bigdata-hpsk01.huadian.com redis.port= 6379 redis.maxIdle= 10 redis.minIdle= 10 redis.maxTotal= 50 |
書寫工具類
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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
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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
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<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連接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,也希望大家多多支持服務器之家。
原文鏈接:https://blog.csdn.net/qq_41934990/article/details/81612180