以下是 **Maven 配置** 的示例，包括 `pom.xml` 文件的基本结构和一些常见的 Maven 设置

1. pom.xml 文件的基本结构

<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">
    <!-- 项目基本信息 -->
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.example</groupId>
    <artifactId>my-app</artifactId>
    <version>1.0.0</version>
    <packaging>jar</packaging>

    <!-- 项目依赖 -->
    <dependencies>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <!-- 构建配置 -->
    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.8.1</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

---

2. 常见 Maven 配置示例

2.1 项目基本信息

• groupId: 项目所属的组织或公司（如 com.example）。
• artifactId: 项目的唯一标识符（如 my-app）。
• version: 项目的版本号（如 1.0.0）。
• packaging: 项目的打包方式（如 jar、war）。

2.2 依赖管理

<dependencies>
    <!-- Spring Boot Starter Web -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
        <version>2.5.4</version>
    </dependency>

    <!-- MySQL 驱动 -->
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>8.0.26</version>
    </dependency>

    <!-- JUnit 测试框架 -->
    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>4.12</version>
        <scope>test</scope>
    </dependency>
</dependencies>

2.3 构建配置

<build>
    <plugins>
        <!-- Maven 编译器插件 -->
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>3.8.1</version>
            <configuration>
                <source>1.8</source>
                <target>1.8</target>
            </configuration>
        </plugin>

        <!-- Spring Boot Maven 插件 -->
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
            <version>2.5.4</version>
        </plugin>
    </plugins>
</build>

2.4 属性配置

<properties>
    <java.version>1.8</java.version>
    <maven.compiler.source>${java.version}</maven.compiler.source>
    <maven.compiler.target>${java.version}</maven.compiler.target>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>

2.5 依赖管理（BOM）

<dependencyManagement>
    <dependencies>
        <!-- Spring Cloud 依赖管理 -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-dependencies</artifactId>
            <version>2020.0.3</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>
    </dependencies>
</dependencyManagement>

2.6 多模块项目配置

<modules>
    <module>module1</module>
    <module>module2</module>
</modules>

2.7 资源文件配置

<build>
    <resources>
        <resource>
            <directory>src/main/resources</directory>
            <filtering>true</filtering>
        </resource>
    </resources>
</build>

2.8 测试配置

<build>
    <testResources>
        <testResource>
            <directory>src/test/resources</directory>
            <filtering>true</filtering>
        </testResource>
    </testResources>
</build>

---

3. 常用 Maven 命令

• 编译项目: mvn compile
• 打包项目: mvn package
• 运行测试: mvn test
• 安装到本地仓库: mvn install
• 清理项目: mvn clean
• 运行 Spring Boot 项目: mvn spring-boot:run

---

4. 总结

通过以上示例，您可以快速掌握 Maven 的基本配置和常见设置。pom.xml 是 Maven 项目的核心配置文件，定义了项目的基本信息、依赖、构建配置等内容。合理配置 pom.xml 可以提高项目的开发效率和管理能力。
以下是一些 Maven 配置的示例，包括 pom.xml 文件的基本结构和一些常见的 Maven 设置。

pom.xml 文件示例
xml

4.0.0

<!-- 项目的基本坐标 -->  
<groupId>com.example</groupId>  
<artifactId>my-app</artifactId>  
<version>1.0-SNAPSHOT</version>  
<packaging>jar</packaging>  

<!-- 项目依赖 -->  
<dependencies>  
    <dependency>  
        <groupId>org.springframework.boot</groupId>  
        <artifactId>spring-boot-starter-web</artifactId>  
        <version>2.7.11</version>  
    </dependency>  
    <!-- 其他依赖项 -->  
</dependencies>  

<!-- 构建配置 -->  
<build>  
    <plugins>  
        <!-- 例如，Maven Compiler Plugin -->  
        <plugin>  
            <groupId>org.apache.maven.plugins</groupId>  
            <artifactId>maven-compiler-plugin</artifactId>  
            <version>3.8.1</version>  
            <configuration>  
                <source>1.8</source>  
                <target>1.8</target>  
            </configuration>  
        </plugin>  
        <!-- 其他插件 -->  
    </plugins>  
</build>  

<!-- 项目信息（可选） -->  
<name>My App</name>  
<description>A sample Maven project</description>  
<url>http://www.example.com</url>  

<!-- 其他配置，如仓库、属性等 -->  
<!-- ... -->  

Maven 设置（settings.xml）示例 通常，settings.xml 文件位于 Maven 安装目录的 conf 文件夹中，或者位于用户主目录下的 .m2 文件夹中。以下是一个简单的示例，演示了如何配置代理和镜像。

xml



example-proxy
true
http
proxy.example.com
8080
proxyuser
proxypass
www.google.com|*.example.com

<mirrors>  
    <mirror>  
        <id>central-repo</id>  
        <url>http://repo.example.com/maven2/</url>  
        <mirrorOf>central</mirrorOf>  
    </mirror>  
</mirrors>  

<!-- 其他配置，如服务器、配置文件等 -->  
<!-- ... -->  

请注意，以上示例仅用于演示目的，并且您应该根据自己的环境和需求进行适当的修改。在配置 Maven 时，请确保您理解每个配置选项的含义和用途。 8. Example Configurations 8.1. Basic Distributed HBase Install

Here is a basic configuration example for a distributed ten node cluster: * The nodes are named example0, example1, etc., through node example9 in this example. * The HBase Master and the HDFS NameNode are running on the node example0. * RegionServers run on nodes example1-example9. * A 3-node ZooKeeper ensemble runs on example1, example2, and example3 on the default ports. * ZooKeeper data is persisted to the directory /export/zookeeper.

Below we show what the main configuration files — hbase-site.xml, regionservers, and hbase-env.sh — found in the HBase conf directory might look like.
8.1.1. hbase-site.xml

<?xml version="1.0"?> <?xml-stylesheet type="text/xsl" href="configuration.xsl"?> hbase.zookeeper.quorum example1,example2,example3 The directory shared by RegionServers. hbase.zookeeper.property.dataDir /export/zookeeper Property from ZooKeeper config zoo.cfg. The directory where the snapshot is stored. hbase.rootdir hdfs://example0:8020/hbase The directory shared by RegionServers. hbase.cluster.distributed true The mode the cluster will be in. Possible values are false: standalone and pseudo-distributed setups with managed ZooKeeper true: fully-distributed with unmanaged ZooKeeper Quorum (see hbase-env.sh)

8.1.2. regionservers

In this file you list the nodes that will run RegionServers. In our case, these nodes are example1-example9.

example1
example2
example3
example4
example5
example6
example7
example8
example9

8.1.3. hbase-env.sh

The following lines in the hbase-env.sh file show how to set the JAVA_HOME environment variable (required for HBase) and set the heap to 4 GB (rather than the default value of 1 GB). If you copy and paste this example, be sure to adjust the JAVA_HOME to suit your environment.

The java implementation to use.

export JAVA_HOME=/usr/java/jdk1.8.0/

The maximum amount of heap to use. Default is left to JVM default.

export HBASE_HEAPSIZE=4G

Use rsync to copy the content of the conf directory to all nodes of the cluster.