Maven之pom.xml配置文件详解

淩亂°似流年 2023-02-10 03:44 20阅读 0赞

一、什么是pom  
pom代表项目对象模型，它是Maven中工作的基本组成单位。它是一个XML文件，始终保存在项目的基本目录中的pom.xml文件中。pom包含的对象是使用maven来构建的，pom.xml文件包含了项目的各种配置信息。 创建一个POM之前，应该要先决定项目组(groupId)，项目名(artifactId)和版本（version），因为这些属性在项目仓库是唯一标识的。需要特别注意，每个项目都只有一个pom.xml文件。

二、配置pom.xml详解

<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>qcby_hope</groupId>
        
      <artifactId>qcby_hope</artifactId>
        
      <version>1.0-SNAPSHOT</version>
         
      <packaging>war</packaging>
      
      
    	<properties>
    	  <spring.version>5.0.2.RELEASE</spring.version>
    	  <slf4j.version>1.6.6</slf4j.version>
    	  <log4j.version>1.2.12</log4j.version>
    	  <mysql.version>5.1.6</mysql.version>
    	  <mybatis.version>3.4.5</mybatis.version>
    	</properties>
      
    <dependencies>
      
        
      <dependency>
      	  
        <groupId>qcby_hope</groupId>
        <artifactId>qcby_hope</artifactId>
        <version>1.6.8</version>
      </dependency>
      <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-aop</artifactId>
        <version>${ spring.version}</version>
      </dependency><dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context</artifactId>
      <version>${ spring.version}</version>
    </dependency>
      <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-web</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-test</artifactId>
        <version>${ spring.version}</version>
      </dependency>
      <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-tx</artifactId>
        <version>${ spring.version}</version>
      </dependency>
      <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-jdbc</artifactId>
        <version>${ spring.version}</version>
      </dependency>
      <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>4.12</version>
        <scope>test</scope>
      </dependency>
      <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>${ mysql.version}</version>
      </dependency>
      <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>servlet-api</artifactId>
        <version>2.5</version>
        <scope>provided</scope>
      </dependency>
      <dependency>
        <groupId>javax.servlet.jsp</groupId>
        <artifactId>jsp-api</artifactId>
        <version>2.0</version>
        <scope>provided</scope>
      </dependency>
      <dependency>
        <groupId>jstl</groupId>
        <artifactId>jstl</artifactId>
        <version>1.2</version>
      </dependency>
      
      <dependency>
        <groupId>log4j</groupId>
        <artifactId>log4j</artifactId>
        <version>${ log4j.version}</version>
      </dependency>
      <dependency>
        <groupId>org.slf4j</groupId>
        <artifactId>slf4j-api</artifactId>
        <version>${ slf4j.version}</version>
      </dependency>
      <dependency>
        <groupId>org.slf4j</groupId>
        <artifactId>slf4j-log4j12</artifactId>
        <version>${ slf4j.version}</version>
      </dependency>
     
      <dependency>
        <groupId>org.mybatis</groupId>
        <artifactId>mybatis</artifactId>
        <version>${ mybatis.version}</version>
      </dependency>
      <dependency>
        <groupId>org.mybatis</groupId>
        <artifactId>mybatis-spring</artifactId>
        <version>1.3.0</version>
      </dependency>
      
      <dependency>
        <groupId>com.alibaba</groupId>
        <artifactId>druid</artifactId>
        <version>1.1.10</version></dependency>
    </dependencies>
    
    <build>
    	 
      <finalName>ssm</finalName>
      <pluginManagement>
      	  
        <plugins>
        
          <plugin>
          
            <groupId>org.apache.maven.plugins</groupId>
             
            <artifactId>maven-compiler-plugin</artifactId>
            
            <version>3.2</version>
            <configuration>
              <source>1.8</source>
              <target>1.8</target>
              <encoding>UTF-8</encoding>
              <showWarnings>true</showWarnings>
            </configuration>
          </plugin>
        </plugins>
      </pluginManagement>
    </build>

pom里面的仓库与setting.xml里的仓库功能是一样的。主要的区别在于，pom里的仓库是个性化的。比如一家大公司里的setting文件是公用的，所有项目都用一个setting文件，但各个子项目却会引用不同的第三方库，所以就需要在pom里设置自己需要的仓库地址。