ignite的開發，說難很難，說簡單也很簡單，開頭第一個小程序，一定是HelloWorld。

下面開始HelloWorld

開發環境的配置，我是使用Spring+SpringMVC+MyBatis+Maven搭建的，如果有小伙伴不會搭建的話…留言表示一下，如果需要的話，我就寫個搭建SSM教程好了，雖然網上很多SSM的搭建的教程，但是，反正我剛開始的時候，幾乎大家的教程都不能用（黑臉）好了，廢話不多說了。

首先，maven中添加依賴，如下：（我懶了，我直接把項目中所有的maven配置拷過來了，請自行刪減）

<dependencies><!-- 單元測試 --><dependency><groupId>junit</groupId><artifactId>junit</artifactId><version>4.11</version></dependency><!-- 1.日志 --><!-- 實現slf4j接口并整合 --><dependency><groupId>ch.qos.logback</groupId><artifactId>logback-classic</artifactId><version>1.1.1</version></dependency><!-- 2.數據庫 --><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>5.1.37</version><scope>runtime</scope></dependency><dependency><groupId>c3p0</groupId><artifactId>c3p0</artifactId><version>0.9.1.2</version></dependency><!-- DAO: MyBatis --><dependency><groupId>org.mybatis</groupId><artifactId>mybatis</artifactId><version>3.3.0</version></dependency><dependency><groupId>org.mybatis</groupId><artifactId>mybatis-spring</artifactId><version>1.2.3</version></dependency><!-- 3.Servlet web --><dependency><groupId>taglibs</groupId><artifactId>standard</artifactId><version>1.1.2</version></dependency><dependency><groupId>jstl</groupId><artifactId>jstl</artifactId><version>1.2</version></dependency><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-databind</artifactId><version>2.5.4</version></dependency><dependency><groupId>javax.servlet</groupId><artifactId>javax.servlet-api</artifactId><version>3.1.0</version></dependency><!-- 4.Spring --><!-- 1)Spring核心 --><dependency><groupId>org.springframework</groupId><artifactId>spring-core</artifactId><version>4.1.7.RELEASE</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-beans</artifactId><version>4.1.7.RELEASE</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-context</artifactId><version>4.1.7.RELEASE</version></dependency><!-- 2)Spring DAO層 --><dependency><groupId>org.springframework</groupId><artifactId>spring-jdbc</artifactId><version>4.1.7.RELEASE</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-tx</artifactId><version>4.1.7.RELEASE</version></dependency><!-- 3)Spring web --><dependency><groupId>org.springframework</groupId><artifactId>spring-web</artifactId><version>4.1.7.RELEASE</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-webmvc</artifactId><version>4.1.7.RELEASE</version></dependency><!-- 4)Spring test --><dependency><groupId>org.springframework</groupId><artifactId>spring-test</artifactId><version>4.1.7.RELEASE</version></dependency><!-- redis客戶端:Jedis --><dependency><groupId>redis.clients</groupId><artifactId>jedis</artifactId><version>2.7.3</version></dependency><dependency><groupId>com.dyuproject.protostuff</groupId><artifactId>protostuff-core</artifactId><version>1.0.8</version></dependency><dependency><groupId>com.dyuproject.protostuff</groupId><artifactId>protostuff-runtime</artifactId><version>1.0.8</version></dependency><!-- Map工具類 --><dependency><groupId>commons-collections</groupId><artifactId>commons-collections</artifactId><version>3.2</version></dependency><!--JSCH用于通過SSH連接遠程主機--><dependency><groupId>com.jcraft</groupId><artifactId>jsch</artifactId><version>0.1.54</version></dependency><!-- ignite的依賴 --><dependency><groupId>org.apache.ignite</groupId><artifactId>ignite-core</artifactId><version>2.3.0</version></dependency><dependency><groupId>org.apache.ignite</groupId><artifactId>ignite-spring</artifactId><version>2.3.0</version></dependency><dependency><groupId>org.apache.ignite</groupId><artifactId>ignite-indexing</artifactId><version>2.3.0</version></dependency></dependencies>

OK，下面，寫java代碼

public void helloworld(){try (Ignite ignite = Ignition.start("examples/config/example-ignite.xml")) {// 調用ignite方法向cache中創建鍵值對類型IgniteCache<Integer, String> firstTestcache = ignite.getOrCreateCache("firstTestCache");// 初始化鍵值對firstTestcache.put(1, "Hello");firstTestcache.put(2, "World!");// 從cache中根據鍵獲取值，并且向集群中的所有節點發出廣播ignite.compute().broadcast(() -> {String s1 = firstTestcache.get(1);String s2 = firstTestcache.get(2);System.out.println("cache 中的數據：" + s1 + " " + s2);});}}

OK了，隨便建個類，寫個main入口，直接跑上面的幾行代碼，即可在控制臺中打印出令人激動的HelloWorld

HelloWorld完成了，更深入的使用方法，后續再說……

總結

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