本篇目錄
1、阿里云中央倉庫配置的原因
2潮针、阿里云中央倉庫配置的兩種方法
3塘匣、第一次從中央倉庫中下載jar包到本地倉庫
3.1創(chuàng)建父工程parent project
3.2編譯
3.3創(chuàng)建子工程common
1净当、阿里云中央倉庫配置的原因
在pom.xml文件里配置了一些依賴,如下圖
但因?yàn)槟J(rèn)的Maven倉庫是在國外祈坠,引入這些依賴的時(shí)候,可能速度非常慢矢劲,于是阿里云做了一個(gè)中央倉庫赦拘,把Maven倉庫里的所有jar包復(fù)制過來,從阿里云倉庫中引入依賴就變得很輕松了芬沉。
我打個(gè)比方:
pom.xml文件是個(gè)購物清單躺同,里面可以列出諸如spring.jar、junit.jar丸逸。蹋艺。。等依賴(商品)椭员,默認(rèn)情況下這些jar包都是從國外的Maven倉庫(商店)里引入(購買)车海,你想想,從國外到國內(nèi)隘击,運(yùn)輸是不是比較困難侍芝,是不是還要過海關(guān),這都要花時(shí)間啊埋同。于是國內(nèi)的阿里云也做了個(gè)倉庫(商店)州叠,倉庫中放了Maven倉庫里所有的jar包(商品),一模一樣的凶赁,這樣我們就可以直接從阿里云倉庫中引入依賴(購買商品)咧栗。這個(gè)也叫鏡像逆甜。
2、阿里云中央倉庫配置的兩種方法
1致板、修改maven根目錄下的conf文件夾中的setting.xml文件交煞,內(nèi)容如下:
<mirrors>
<mirror>
<id>alimaven</id>
<name>aliyun maven</name>
<url>http://maven.aliyun.com/nexus/content/groups/public/</url>
<mirrorOf>central</mirrorOf>
</mirror>
</mirrors>
2、在pom.xml中直接添加
<repositories><!-- 代碼庫 -->
<repository>
<id>maven-ali</id>
<url>http://maven.aliyun.com/nexus/content/groups/public//</url>
<releases>
<enabled>true</enabled>
</releases>
<snapshots>
<enabled>true</enabled>
<updatePolicy>always</updatePolicy>
<checksumPolicy>fail</checksumPolicy>
</snapshots>
</repository>
</repositories>
3斟或、第一次從中央倉庫中下載jar包到本地倉庫
3.1創(chuàng)建父工程 parent project
在File》new》other》Maven》maven project》next》素征,創(chuàng)建一個(gè)maven project父工程,Packaging選項(xiàng)為pom萝挤。在pom.xml文件中加入以下依賴:
<!-- Maven阿里云中央倉庫 -->
<repositories><!-- 代碼庫 -->
<repository>
<id>maven-ali</id>
<url>http://maven.aliyun.com/nexus/content/groups/public//</url>
<releases>
<enabled>true</enabled>
</releases>
<snapshots>
<enabled>true</enabled>
<updatePolicy>always</updatePolicy>
<checksumPolicy>fail</checksumPolicy>
</snapshots>
</repository>
</repositories>
<!-- 集中定義依賴版本號(hào) -->
<properties>
<junit.version>4.12</junit.version>
<spring.version>4.2.4.RELEASE</spring.version>
<mybatis.version>3.2.8</mybatis.version>
<mybatis.spring.version>1.2.2</mybatis.spring.version>
<mybatis.paginator.version>1.2.15</mybatis.paginator.version>
<mysql.version>5.1.32</mysql.version>
<slf4j.version>1.6.4</slf4j.version>
<jackson.version>2.4.2</jackson.version>
<druid.version>1.0.9</druid.version>
<httpclient.version>4.3.5</httpclient.version>
<jstl.version>1.2</jstl.version>
<servlet-api.version>2.5</servlet-api.version>
<jsp-api.version>2.0</jsp-api.version>
<joda-time.version>2.5</joda-time.version>
<commons-lang3.version>3.3.2</commons-lang3.version>
<commons-io.version>1.3.2</commons-io.version>
<commons-net.version>3.3</commons-net.version>
<pagehelper.version>3.4.2</pagehelper.version>
<jsqlparser.version>0.9.1</jsqlparser.version>
<commons-fileupload.version>1.3.1</commons-fileupload.version>
<jedis.version>2.7.2</jedis.version>
<solrj.version>4.10.3</solrj.version>
<dubbo.version>2.5.3</dubbo.version>
<zookeeper.version>3.4.7</zookeeper.version>
<zkclient.version>0.1</zkclient.version>
<activemq.version>5.11.2</activemq.version>
<freemarker.version>2.3.23</freemarker.version>
<quartz.version>2.2.2</quartz.version>
</properties>
<dependencyManagement>
<dependencies>
<!-- 時(shí)間操作組件 -->
<dependency>
<groupId>joda-time</groupId>
<artifactId>joda-time</artifactId>
<version>${joda-time.version}</version>
</dependency>
<!-- Apache工具組件 -->
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>${commons-lang3.version}</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-io</artifactId>
<version>${commons-io.version}</version>
</dependency>
<dependency>
<groupId>commons-net</groupId>
<artifactId>commons-net</artifactId>
<version>${commons-net.version}</version>
</dependency>
<!-- Jackson Json處理工具包 -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>${jackson.version}</version>
</dependency>
<!-- httpclient -->
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
<version>${httpclient.version}</version>
</dependency>
<!-- quartz任務(wù)調(diào)度框架 -->
<dependency>
<groupId>org.quartz-scheduler</groupId>
<artifactId>quartz</artifactId>
<version>${quartz.version}</version>
</dependency>
<!-- 單元測(cè)試 -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
<!-- 日志處理 -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>${slf4j.version}</version>
</dependency>
<!-- Mybatis -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>${mybatis.version}</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>${mybatis.spring.version}</version>
</dependency>
<dependency>
<groupId>com.github.miemiedev</groupId>
<artifactId>mybatis-paginator</artifactId>
<version>${mybatis.paginator.version}</version>
</dependency>
<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper</artifactId>
<version>${pagehelper.version}</version>
</dependency>
<!-- MySql -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>${mysql.version}</version>
</dependency>
<!-- 連接池 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>${druid.version}</version>
</dependency>
<!-- Spring -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jms</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- JSP相關(guān) -->
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>${jstl.version}</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>${servlet-api.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jsp-api</artifactId>
<version>${jsp-api.version}</version>
<scope>provided</scope>
</dependency>
<!-- 文件上傳組件 -->
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>${commons-fileupload.version}</version>
</dependency>
<!-- Redis客戶端 -->
<dependency>
<groupId>redis.clients</groupId>
<artifactId>jedis</artifactId>
<version>${jedis.version}</version>
</dependency>
<!-- solr客戶端 -->
<dependency>
<groupId>org.apache.solr</groupId>
<artifactId>solr-solrj</artifactId>
<version>${solrj.version}</version>
</dependency>
<!-- dubbo相關(guān) -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>dubbo</artifactId>
<version>${dubbo.version}</version>
</dependency>
<dependency>
<groupId>org.apache.zookeeper</groupId>
<artifactId>zookeeper</artifactId>
<version>${zookeeper.version}</version>
</dependency>
<dependency>
<groupId>com.github.sgroschupf</groupId>
<artifactId>zkclient</artifactId>
<version>${zkclient.version}</version>
</dependency>
<dependency>
<groupId>org.apache.activemq</groupId>
<artifactId>activemq-all</artifactId>
<version>${activemq.version}</version>
</dependency>
<dependency>
<groupId>org.freemarker</groupId>
<artifactId>freemarker</artifactId>
<version>${freemarker.version}</version>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<finalName>${project.artifactId}</finalName>
<plugins>
<!-- 資源文件拷貝插件 -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-resources-plugin</artifactId>
<version>2.7</version>
<configuration>
<encoding>UTF-8</encoding>
</configuration>
</plugin>
<!-- java編譯插件 -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.2</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
<encoding>UTF-8</encoding>
</configuration>
</plugin>
</plugins>
<pluginManagement>
<plugins>
<!-- 配置Tomcat插件 -->
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<version>2.2</version>
</plugin>
</plugins>
</pluginManagement>
</build>
這些都不是實(shí)際依賴御毅,只是定義依賴和管理依賴版本。
3.2怜珍、編譯
在cmd中輸入
d:
cd D:\javaeeworkspace\taotao-parent
切換路徑到上面創(chuàng)建的父工程端蛆,進(jìn)行mvn compile,mvn clean酥泛,操作今豆,build success說明成功。但是在本地倉庫只多加了一個(gè)org文件夾柔袁,其他所有jar包并不會(huì)下載晚凿。如下圖
3.3、創(chuàng)建一個(gè)maven project子工程
在File》new》other》Maven》maven project》next》瘦馍,創(chuàng)建一個(gè)maven project子工程歼秽,比如叫common,Packaging選項(xiàng)為jar情组,并且繼承上面創(chuàng)建的父工程parent project燥筷。在pom.xml文件中添加如下代碼:
<!-- 實(shí)際依賴,從父工程中的pom.xml文件復(fù)制過來的 -->
<dependencies>
<!-- 時(shí)間操作組件 -->
<dependency>
<groupId>joda-time</groupId>
<artifactId>joda-time</artifactId>
</dependency>
<!-- Apache工具組件 -->
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-io</artifactId>
</dependency>
<dependency>
<groupId>commons-net</groupId>
<artifactId>commons-net</artifactId>
</dependency>
<!-- Jackson Json處理工具包 -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
</dependency>
<!-- httpclient -->
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
</dependency>
<!-- quartz任務(wù)調(diào)度框架 -->
<dependency>
<groupId>org.quartz-scheduler</groupId>
<artifactId>quartz</artifactId>
</dependency>
<!-- 單元測(cè)試 -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
<!-- 日志處理 -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
</dependency>
</dependencies>
稍等一下院崇,在子工程common中出現(xiàn)包含jar包的Maven Dependencies肆氓,并且也會(huì)出現(xiàn)在本地倉庫。如下圖
以后就直接從本地倉庫中引入依賴底瓣。