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Maven构建案例

wen java案例 2

本文目录导读：

Maven构建案例

  1. 基础Maven项目案例
  2. 多模块项目案例
  3. Spring Boot项目案例
  4. 高级构建配置案例
  5. 常用构建命令
  6. 企业级最佳实践配置

我将为您提供一个完整的Maven构建案例,从基础到进阶，包含实际可用的代码示例。

基础Maven项目案例

创建基础项目结构

<!-- pom.xml - 基础配置 -->
<?xml version="1.0" encoding="UTF-8"?>
<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>
    <!-- 项目坐标 -->
    <groupId>com.example</groupId>
    <artifactId>my-app</artifactId>
    <version>1.0.0</version>
    <packaging>jar</packaging>
    <!-- 项目属性 -->
    <properties>
        <maven.compiler.source>11</maven.compiler.source>
        <maven.compiler.target>11</maven.compiler.target>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <junit.version>5.9.2</junit.version>
    </properties>
    <!-- 依赖管理 -->
    <dependencies>
        <dependency>
            <groupId>org.junit.jupiter</groupId>
            <artifactId>junit-jupiter</artifactId>
            <version>${junit.version}</version>
            <scope>test</scope>
        </dependency>
    </dependencies>
    <!-- 构建配置 -->
    <build>
        <plugins>
            <!-- 编译插件 -->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.11.0</version>
                <configuration>
                    <source>${maven.compiler.source}</source>
                    <target>${maven.compiler.target}</target>
                </configuration>
            </plugin>
            <!-- 测试插件 -->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-surefire-plugin</artifactId>
                <version>3.0.0-M9</version>
            </plugin>
        </plugins>
    </build>
</project>

示例代码

// src/main/java/com/example/Calculator.java
package com.example;
public class Calculator {
    public int add(int a, int b) {
        return a + b;
    }
    public int subtract(int a, int b) {
        return a - b;
    }
    public int multiply(int a, int b) {
        return a * b;
    }
    public int divide(int a, int b) {
        if (b == 0) {
            throw new IllegalArgumentException("不能除以零");
        }
        return a / b;
    }
}
// src/test/java/com/example/CalculatorTest.java
package com.example;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.*;
public class CalculatorTest {
    private final Calculator calculator = new Calculator();
    @Test
    void testAdd() {
        assertEquals(5, calculator.add(2, 3));
    }
    @Test
    void testSubtract() {
        assertEquals(1, calculator.subtract(3, 2));
    }
    @Test
    void testDivide() {
        assertThrows(IllegalArgumentException.class, () -> calculator.divide(1, 0));
    }
}

多模块项目案例

父POM配置

<!-- 父pom.xml -->
<project>
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.example</groupId>
    <artifactId>parent-project</artifactId>
    <version>1.0.0</version>
    <packaging>pom</packaging>
    <!-- 模块列表 -->
    <modules>
        <module>common-module</module>
        <module>api-module</module>
        <module>service-module</module>
        <module>web-module</module>
    </modules>
    <!-- 统一依赖管理 -->
    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-dependencies</artifactId>
                <version>2.7.14</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>
    <build>
        <pluginManagement>
            <plugins>
                <plugin>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-maven-plugin</artifactId>
                    <version>2.7.14</version>
                </plugin>
            </plugins>
        </pluginManagement>
    </build>
</project>

子模块配置

<!-- common-module/pom.xml -->
<project>
    <parent>
        <groupId>com.example</groupId>
        <artifactId>parent-project</artifactId>
        <version>1.0.0</version>
    </parent>
    <artifactId>common-module</artifactId>
    <packaging>jar</packaging>
    <dependencies>
        <!-- 通用依赖 -->
    </dependencies>
</project>
<!-- api-module/pom.xml -->
<project>
    <parent>
        <groupId>com.example</groupId>
        <artifactId>parent-project</artifactId>
        <version>1.0.0</version>
    </parent>
    <artifactId>api-module</artifactId>
    <packaging>jar</packaging>
    <dependencies>
        <dependency>
            <groupId>com.example</groupId>
            <artifactId>common-module</artifactId>
            <version>${project.version}</version>
        </dependency>
    </dependencies>
</project>

Spring Boot项目案例

<!-- spring-boot项目的pom.xml -->
<project>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>3.1.5</version>
        <relativePath/>
    </parent>
    <groupId>com.example</groupId>
    <artifactId>demo-app</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>demo-app</name>
    <description>示例应用</description>
    <properties>
        <java.version>17</java.version>
        <swagger.version>2.1.0</swagger.version>
    </properties>
    <dependencies>
        <!-- Web -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <!-- 数据访问 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
        <!-- 数据库驱动 -->
        <dependency>
            <groupId>com.mysql</groupId>
            <artifactId>mysql-connector-j</artifactId>
            <scope>runtime</scope>
        </dependency>
        <!-- Lombok -->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <!-- 安全 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-security</artifactId>
        </dependency>
        <!-- 测试 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>
    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <excludes>
                        <exclude>
                            <groupId>org.projectlombok</groupId>
                            <artifactId>lombok</artifactId>
                        </exclude>
                    </excludes>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

高级构建配置案例

多环境配置

<!-- profiles配置 -->
<profiles>
    <!-- 开发环境 -->
    <profile>
        <id>dev</id>
        <activation>
            <activeByDefault>true</activeByDefault>
        </activation>
        <properties>
            <environment>dev</environment>
            <database.url>jdbc:mysql://localhost:3306/dev_db</database.url>
        </properties>
    </profile>
    <!-- 生产环境 -->
    <profile>
        <id>prod</id>
        <activation>
            <property>
                <name>env</name>
                <value>prod</value>
            </property>
        </activation>
        <properties>
            <environment>prod</environment>
            <database.url>jdbc:mysql://production-server:3306/prod_db</database.url>
        </properties>
    </profile>
</profiles>

资源过滤和打包

<build>
    <!-- 资源过滤 -->
    <resources>
        <resource>
            <directory>src/main/resources</directory>
            <filtering>true</filtering>
            <includes>
                <include>**/*.properties</include>
                <include>**/*.yml</include>
            </includes>
        </resource>
        <resource>
            <directory>src/main/resources</directory>
            <filtering>false</filtering>
            <excludes>
                <exclude>**/*.properties</exclude>
                <exclude>**/*.yml</exclude>
            </excludes>
        </resource>
    </resources>
    <!-- 打包插件配置 -->
    <plugins>
        <!-- 打包时跳过测试 -->
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-surefire-plugin</artifactId>
            <configuration>
                <skipTests>${skipTests}</skipTests>
                <includes>
                    <include>**/*Test.java</include>
                    <include>**/*Tests.java</include>
                </includes>
            </configuration>
        </plugin>
        <!-- 生成可执行Jar包 -->
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-shade-plugin</artifactId>
            <version>3.4.1</version>
            <executions>
                <execution>
                    <phase>package</phase>
                    <goals>
                        <goal>shade</goal>
                    </goals>
                    <configuration>
                        <transformers>
                            <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                                <mainClass>com.example.MainApplication</mainClass>
                            </transformer>
                        </transformers>
                    </configuration>
                </execution>
            </executions>
        </plugin>
    </plugins>
</build>

常用构建命令

# 基础命令
mvn clean                      # 清理target目录
mvn compile                   # 编译源文件
mvn test                      # 运行测试
mvn package                   # 打包应用
mvn install                   # 安装到本地仓库
mvn deploy                    # 部署到远程仓库
# 组合命令
mvn clean compile            # 清理并编译
mvn clean test              # 清理并测试
mvn clean package           # 清理并打包
mvn clean install          # 清理并安装
mvn clean deploy           # 清理并部署
# 高级用法
mvn -DskipTests package     # 跳过测试打包
mvn -Dtest=TestClass test   # 运行特定测试类
mvn -P prod package         # 使用生产环境配置
mvn dependency:tree         # 查看依赖树
mvn help:effective-pom     # 查看有效POM

企业级最佳实践配置

<project>
    <!-- 代码质量检查插件 -->
    <plugins>
        <!-- SpotBugs 静态分析 -->
        <plugin>
            <groupId>com.github.spotbugs</groupId>
            <artifactId>spotbugs-maven-plugin</artifactId>
            <version>4.7.3.3</version>
            <configuration>
                <effort>Max</effort>
                <threshold>Low</threshold>
                <failOnError>true</failOnError>
            </configuration>
        </plugin>
        <!-- Checkstyle 代码规范检查 -->
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-checkstyle-plugin</artifactId>
            <version>3.2.1</version>
            <configuration>
                <configLocation>checkstyle.xml</configLocation>
                <consoleOutput>true</consoleOutput>
                <failsOnError>true</failsOnError>
            </configuration>
        </plugin>
        <!-- 代码覆盖率 -->
        <plugin>
            <groupId>org.jacoco</groupId>
            <artifactId>jacoco-maven-plugin</artifactId>
            <version>0.8.10</version>
            <executions>
                <execution>
                    <goals>
                        <goal>prepare-agent</goal>
                    </goals>
                </execution>
                <execution>
                    <id>report</id>
                    <phase>test</phase>
                    <goals>
                        <goal>report</goal>
                    </goals>
                </execution>
            </executions>
        </plugin>
        <!-- 依赖版本更新检查 -->
        <plugin>
            <groupId>org.codehaus.mojo</groupId>
            <artifactId>versions-maven-plugin</artifactId>
            <version>2.15.0</version>
        </plugin>
    </plugins>
</project>

这个完整的Maven构建案例涵盖了从基础到企业级应用的各种场景,您可以根据实际项目需求选择合适的配置，并按照需要调整依赖版本和插件配置。

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