本文章從頭開始介紹spring集成redis的示例。
eclipse工程結構
如下圖為我的示例工程的結構圖，采用maven構建。其中需要集成spring，因此需要beans.xml文件配置spring的依賴注入，redis.properties配置連接服務器的配置信息。
其中工程中beans.xml和redis.properties文件直接放在了根目錄，有需要的讀者可以放到resource目錄中。
pom依賴
如下為示例pom依賴，spring集成redis需要依賴的包為：jedis包，spring-context模塊及依賴的包，spring-data-redis模塊包，spring-test包用于junit測試，pom.xml文件內容如下：
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<project xmlns="https://maven.apache.org/pom/4.0.0" xmlns:xsi="https://www.w3.org/2001/xmlschema-instance" xsi:schemalocation="https://maven.apache.org/pom/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelversion>4.0.0</modelversion> <groupid>com.test</groupid> javatest</artifactid> <version>0.0.1-snapshot</version> <packaging>jar</packaging> <name>javatest</name> <url>https://maven.apache.org</url> <properties> <project.build.sourceencoding>utf-8</project.build.sourceencoding> </properties> <dependencies> <dependency> <groupid>junit</groupid> junit</artifactid> <version>4.12</version> <scope>test</scope> </dependency> <dependency> <groupid>redis.clients</groupid> jedis</artifactid> <version>2.5.1</version> </dependency> <dependency> <groupid>org.springframework</groupid> spring-context</artifactid> <version>4.2.6.release</version> <scope>runtime</scope> </dependency> <dependency> <groupid>org.springframework</groupid> spring-test</artifactid> <version>4.2.6.release</version> <scope>runtime</scope> </dependency> <dependency> <groupid>org.springframework.data</groupid> spring-data-redis</artifactid> <version>1.7.2.release</version> </dependency> </dependencies></project> |
spring配置
spring配置文件beans.xml的配置如下：
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<!--?xml version="1.0" encoding="utf-8"?--> <beans xmlns="https://www.springframework.org/schema/beans" xmlns:aop="https://www.springframework.org/schema/aop" xmlns:context="https://www.springframework.org/schema/context" xmlns:jee="https://www.springframework.org/schema/jee" xmlns:p="https://www.springframework.org/schema/p" xmlns:tx="https://www.springframework.org/schema/tx" xmlns:xsi="https://www.w3.org/2001/xmlschema-instance" xsi:schemalocation=" https://www.springframework.org/schema/beans https://www.springframework.org/schema/beans/spring-beans.xsd https://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd"> <!-- 加載classpath下的redis配置文件 --> <context:property-placeholder location="classpath:redis.properties"> <bean class="redis.clients.jedis.jedispoolconfig" id="poolconfig"> <property name="maxidle" value="${redis.maxidle}"> <property name="testonborrow" value="${redis.testonborrow}"> </property></property></bean> <bean class="org.springframework.data.redis.connection.jedis.jedisconnectionfactory" id="connectionfactory" p:host-name="${redis.host}" p:password="${redis.pass}" p:pool-config-ref="poolconfig" p:port="${redis.port}"> <!-- spring提供的模板類 --> <bean class="org.springframework.data.redis.core.stringredistemplate" id="redistemplate"> <property name="connectionfactory" ref="connectionfactory"> </property></bean> <bean class="com.redis.test.userdao" id="userdao"> <property name="redistemplate" ref="redistemplate"> </property></bean> </bean></context:property-placeholder></beans> |
在beans.xml配置文件中，需要先加載redis.properties文件。
redis配置信息
redis的配置信息在redis.properties文件中配置：
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# redis地址和端口和連接密碼redis.host=localhostredis.port=6379redis.pass= redis.maxidle=300redis.testonborrow=true |
此示例，連接redis服務器時沒有設置連接密碼，因此不用填值。
java代碼
user.java
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package com.redis.test;import java.io.serializable;public class user implements serializable { private static final long serialversionuid = 3409768855488864675l; private string id; private string name; private string password; public user() { } public user(string id, string name, string password) { this.id = id; this.name = name; this.password = password; } public string getid() { return id; } public void setid(string id) { this.id = id; } public string getname() { return name; } public void setname(string name) { this.name = name; } public string getpassword() { return password; } public void setpassword(string password) { this.password = password; } public string tostring() { return "user [id=" + id + ", name=" + name + ", password=" + password + "]"; }} |
abstractredisbasedao.java
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package com.redis.test;import org.springframework.data.redis.core.redistemplate;import org.springframework.data.redis.serializer.redisserializer;public abstract class abstractredisbasedao<k, v=""> { protected redistemplate<k, v=""> redistemplate;public redistemplate<k, v=""> getredistemplate() { return redistemplate;}public void setredistemplate(redistemplate<k, v=""> redistemplate) { this.redistemplate = redistemplate;}/** * 獲取 redisserializer */protected redisserializer<string> getredisserializer() { return redistemplate.getstringserializer();}} |
iuserdao.java
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package com.redis.test;import java.util.list;public interface iuserdao { /** 新增 */ boolean add(user user); /** 批量新增，pipeline方式 */ boolean add(list<user> list); /** 刪除 */ void delete(string key); /** 批量刪除 */ void delete(list<string> keys); /** 更新 */ boolean update(user user); /** 讀取 */ user get(string keyid);} |
userdao.java
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package com.redis.test;import java.util.list;import org.springframework.dao.dataaccessexception;import org.springframework.data.redis.connection.redisconnection;import org.springframework.data.redis.core.rediscallback;import org.springframework.data.redis.serializer.redisserializer;import org.springframework.util.assert;public class userdao extends abstractredisbasedao<string, user=""> implements iuserdao { public boolean add(final user user) { boolean result = redistemplate.execute(new rediscallback<boolean>() { public boolean doinredis(redisconnection connection) throws dataaccessexception { redisserializer<string> serializer = getredisserializer(); byte[] key = serializer.serialize(user.getid()); // 將id序列化成key byte[] value = serializer.serialize(user.getname()); return connection.setnx(key, value); } } ); return result;}public boolean add(final list<user> list) { assert.notempty(list); boolean result = redistemplate.execute(new rediscallback<boolean>() { public boolean doinredis(redisconnection connection) throws dataaccessexception { redisserializer<string> serializer = getredisserializer(); for (int i = 0; i < list.size(); i++) { user user = list.get(i); byte[] key = serializer.serialize(user.getid()); // 將id序列化成key byte[] value = serializer.serialize(user.getname()); connection.setnx(key, value); } return true; } } , false, true); return result;}public void delete(string key) { redistemplate.delete(key);}public void delete(list<string> keys) { redistemplate.delete(keys);}public boolean update(final user user) { string key = user.getid(); if(get(key) == null) { throw new nullpointerexception("數據行不存在,key = " + key); } boolean result = redistemplate.execute(new rediscallback<boolean>() { public boolean doinredis(redisconnection connection) throws dataaccessexception { redisserializer<string> serializer = getredisserializer(); byte[] key = serializer.serialize(user.getid()); // 將id序列化成key byte[] value = serializer.serialize(user.getname()); connection.set(key, value); return true; } } ); return result;}public user get(final string keyid) { user user = redistemplate.execute(new rediscallback<user>() { public user doinredis(redisconnection connection) throws dataaccessexception { redisserializer<string> serializer = getredisserializer(); byte[] key = serializer.serialize(keyid); byte[] value = connection.get(key); if(value == null) { return null; } string name = serializer.deserialize(value); return new user(keyid, name, null); } } ); return user;}} |
redistest.java（junit測試類）
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package com.redis.test;import java.util.arraylist;import java.util.list;import org.junit.test;import org.springframework.beans.factory.annotation.autowired;import org.springframework.test.context.contextconfiguration;import org.springframework.test.context.junit4.abstractjunit4springcontexttests;import org.springframework.util.assert;/** * junit在spring context環境下測試 */@contextconfiguration(locations={"classpath*:beans.xml"})public class redistest extends abstractjunit4springcontexttests { @autowired private iuserdao userdao; /** 增加單個用戶 */ @test public void testadduser() { user user = new user("user1", "password1", null); boolean result = userdao.add(user); assert.istrue(result); system.out.println("添加結果：" + result); } /** 批量新增普通方式,5286ms */ @test public void testaddusers1() { list<user> list = new arraylist<user>(); for (int i = 10; i < 50000; i++) { user user = new user(); user.setid("user" + i); user.setname("password" + i); list.add(user); } long begin = system.currenttimemillis(); for (user user : list) { userdao.add(user); } system.out.println(system.currenttimemillis() - begin); } /** 批量新增pipeline方式,484ms */ @test public void testaddusers2() { list<user> list = new arraylist<user>(); for (int i = 50000; i < 100000; i++) { user user = new user(); user.setid("user" + i); user.setname("password" + i); list.add(user); } long begin = system.currenttimemillis(); boolean result = userdao.add(list); assert.istrue(result); system.out.println(system.currenttimemillis() - begin); } /** 更新 */ @test public void testupdate() { user user = new user(); user.setid("user1"); user.setname("new_password"); boolean result = userdao.update(user); assert.istrue(result); } /** 刪除 */ @test public void testdelete() { string key = "user1"; userdao.delete(key); } /** 批量刪除 */ @test public void testdeletes() { list<string> list = new arraylist<string>(); for (int i = 0; i < 10; i++) { list.add("user" + i); } userdao.delete(list); } /** 讀取 */ @test public void testgetuser() { string id = "user1"; user user = userdao.get(id); assert.notnull(user); system.out.println(user); }} |
總結
以上就是本文關于spring集成redis詳解代碼示例的全部內容，希望對大家有所幫助。如有不足之處，歡迎留言指出。感謝朋友們對本站的支持！
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