分布式架构--第一篇--项目拆分(maven命令生成多模块项目)

预览生成的项目结构:

  ying-yue-parent  // 顶级总编译控制模块

  ying-yue-lib    // jar模块

  ying-yue-model  // 模型对象模块

  ying-yue-dao   // 持久化层模块

  ying-yue-service  // 业务 层 模 块

  ying-yue-web    // 控制 层 模 块

 

包名:com.zjx.lollipop

1.准备工作 安装jdk和maven

从apache官网下载maven https://www.apache.org/

解压即安装

1.1.配置环境变量

 

1.2.使用mvn -v查看是否安装成功

2.使用命令生成上述结构的模块化结构项目

说明

mvn archetype:generate  固定格式

  -DgroupId       组织标识(包名)

  -DartifactId       项目名称

  -DarchetypeArtifactId  指定ArchetypeId,maven-archetype-quickstart,创建一个Java Project;maven-archetype-webapp,创建一个Web Project

  -DinteractiveMode    是否使用交互模式

2.1使用命令创建 ying-yue-parent 顶级模块

mvn archetype:generate -DgroupId=com.zjx.lollipop -DartifactId=ying-yue-parent -DarchetypeArtifactId=maven-archetype-quickstart -DinteractiveMode=false

 

进入生成的目录将jar打包方式更改为pom方式如下图:

下面继续使用命令生成模块, 下面的这些不需要更改打包方式默认即可, 开始:

2.2创建ying-yue-lib 模块

mvn archetype:generate -DgroupId=com.zjx.lollipop -DartifactId=ying-yue-lib -DarchetypeArtifactId=maven-archetype-quickstart -DinteractiveMode=false

 

2.3创建ying-yue-model模块

mvn archetype:generate -DgroupId=com.zjx.lollipop -DartifactId=ying-yue-model -DarchetypeArtifactId=maven-archetype-quickstart -DinteractiveMode=false

 

2.4创建ying-yue-dao模块

mvn archetype:generate -DgroupId=com.zjx.lollipop -DartifactId=ying-yue-dao -DarchetypeArtifactId=maven-archetype-quickstart -DinteractiveMode=false

 

2.5创建ying-yue-service模块

mvn archetype:generate -DgroupId=com.zjx.lollipop -DartifactId=ying-yue-service -DarchetypeArtifactId=maven-archetype-quickstart -DinteractiveMode=false

 

2.6创建ying-yue-web模块

mvn archetype:generate -DgroupId=com.zjx.lollipop -DartifactId=ying-yue-web -DarchetypeArtifactId=maven-archetype-webapp -DinteractivMode=false

这一步需要手动输入版本号默认为1.0-SNAPSHOT 我直接按回车确认(如下图时)如果想自定义版本号在后面输入然后Enter即可

是否使用com.zjx.lollipop这个包名 当然是Yes (输入Y 回车)

回车后生成web模块

执行完上图所有命令后最终生成如下图结构目录:

3.导入Eclipse或MyEclipse

使用maven方式import导入后如下图1, 图2

图1

图2

3.1打开web模块的pom.xml配置jetty插件

<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/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.zjx.lollipop</groupId>
  <artifactId>ying-yue-web</artifactId>
  <packaging>war</packaging>
  <version>1.0-SNAPSHOT</version>
  <name>ying-yue-web Maven Webapp</name>
  <url>http://maven.apache.org</url>
  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
  </dependencies>
  <build>
    <finalName>ying-yue-web</finalName>
   <!--配置Jetty--> <plugins> <plugin> <groupId>org.mortbay.jetty</groupId> <artifactId>maven-jetty-plugin</artifactId> </plugin> </plugins>
<!--配置Jetty-->
</build> </project>

3.2选中ying-yue-parent后右键Run As输入package命令进行打包

点击ying-yue-web右键Run As输入命令jetty:run后点击run按钮运行( 画框的可以仔细看看, 发布后默认targe目录可以将那个war拷到tomcat下运行)

3.3测试访问 localhost:8080/ying-yue-web

可以的没问题

 

4.我打算使用servlet+JDBC写一个带分页的用户增删改查 来体现模块间的调用与jar依赖管理, 开始:

jar的坐标不知道的可以到

 

中搜索;

4.1加入servlet和JDBC及其他依赖jar到ying-yue-lib的pom.xml中

需要用到的jar列表

commons-beanutils-x.x.jar

commons-logging-x.x.jar

commons-collections-x.x.jar

jstl.jar

mysql-connector-java-x.x.jar

standard.jar

可以看到当引入beanutils后其他两个logging和collections自动引入这就是maven的好处

lib模块配置后的pom.xml

<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/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.zjx.lollipop</groupId>
  <artifactId>ying-yue-lib</artifactId>
  <packaging>jar</packaging>
  <version>1.0-SNAPSHOT</version>
  <name>ying-yue-lib</name>
  <url>http://maven.apache.org</url>
  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>javax.servlet-api</artifactId>
      <version>3.1.0</version>
    </dependency>
    <dependency>
      <groupId>commons-beanutils</groupId>
      <artifactId>commons-beanutils</artifactId>
      <version>1.9.2</version>
    </dependency>
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>6.0.2</version>
    </dependency>

4.2模块间引用lib及模块依赖调用

首先是dao引入lib和model

dao模块配置后的pom.xml

<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/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.zjx.lollipop</groupId>
  <artifactId>ying-yue-dao</artifactId>
  <packaging>jar</packaging>
  <version>1.0-SNAPSHOT</version>
  <name>ying-yue-dao</name>
  <url>http://maven.apache.org</url>
  <dependencies>
      <dependency>
      <groupId>com.zjx.lollipop</groupId>
        <artifactId>ying-yue-lib</artifactId>
      <version>1.0-SNAPSHOT</version>
    </dependency>
    <dependency>
      <groupId>com.zjx.lollipop</groupId>
        <artifactId>ying-yue-model</artifactId>
      <version>1.0-SNAPSHOT</version>
    </dependency>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
  </dependencies>
</project>
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service模块引入dao模块

service模块配置后的pom.xml

<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/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.zjx.lollipop</groupId>
  <artifactId>ying-yue-service</artifactId>
  <packaging>jar</packaging>
  <version>1.0-SNAPSHOT</version>
  <name>ying-yue-service</name>
  <url>http://maven.apache.org</url>
  <dependencies>
    <dependency>
      <groupId>com.zjx.lollipop</groupId>
        <artifactId>ying-yue-dao</artifactId>
      <version>1.0-SNAPSHOT</version>
    </dependency>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
  </dependencies>
</project>
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web模块引入service模块

web模块配置后的pom.xml

<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/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.zjx.lollipop</groupId>
  <artifactId>ying-yue-web</artifactId>
  <packaging>war</packaging>
  <version>1.0-SNAPSHOT</version>
  <name>ying-yue-web Maven Webapp</name>
  <url>http://maven.apache.org</url>
  <dependencies>
      <dependency>
      <groupId>com.zjx.lollipop</groupId>
        <artifactId>ying-yue-service</artifactId>
      <version>1.0-SNAPSHOT</version>
    </dependency>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
  </dependencies>
  <build>
    <finalName>ying-yue-web</finalName>
    <plugins>
        <plugin>
         <groupId>org.mortbay.jetty</groupId>   
         <artifactId>maven-jetty-plugin</artifactId>
        </plugin>
    </plugins>
  </build>
</project>
View Code

 

 

待续......

 

posted @ 2016-05-17 02:19  周建旭  阅读(5923)  评论(1编辑  收藏  举报