之前碰到过很多javaWeb工程，直接使用lib文件夹管理jar包，缺点多多，jar包版本混乱，不堪其扰，故创建pom、整理成maven管理。

    而且这种工程打包基本都是使用eclipse等开发工具打包，不方便使用自动构建工具，使用maven管理可以使用它的打包工具。

    1. 创建pom文件，将配置信息和依赖jar包信息写入其中
      jar包相关信息可以去该网址去查找。
    1. <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    2.          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    3.     <modelVersion>4.0.0</modelVersion>
    4.     <groupId>com.chongtong</groupId>
    5.     <artifactId>demo</artifactId>
    6.     <version>0.0.1-SNAPSHOT</version>
    7.     <name>demo</name>
    8.     <description>demo</description>
    9.     <properties>
    10.         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    11.         <jdk.version>1.8</jdk.version>
    12.         <spring.version>3.0.5.RELEASE</spring.version>
    13.     </properties>
    14.     <dependencies>
    15.         <!-- core -->
    16.         <dependency>
    17.             <groupId>org.springframework</groupId>
    18.             <artifactId>spring-context</artifactId>
    19.             <version>${spring.version}</version>
    20.         </dependency>
    21.         <dependency>
    22.             <groupId>org.springframework</groupId>
    23.             <artifactId>spring-context-support</artifactId>
    24.             <version>${spring.version}</version>
    25.         </dependency>
    26.         <dependency>
    27.             <groupId>org.springframework</groupId>
    28.             <artifactId>spring-core</artifactId>
    29.             <version>${spring.version}</version>
    30.         </dependency>
    31.         <dependency>
    32.             <groupId>org.springframework</groupId>
    33.             <artifactId>spring-beans</artifactId>
    34.             <version>${spring.version}</version>
    35.         </dependency>
    36.         <!-- web -->
    37.         <dependency>
    38.             <groupId>org.springframework</groupId>
    39.             <artifactId>spring-web</artifactId>
    40.             <version>${spring.version}</version>
    41.         </dependency>
    42.         <dependency>
    43.             <groupId>org.springframework</groupId>
    44.             <artifactId>spring-servlet</artifactId>
    45.             <version>${spring.version}</version>
    46.         </dependency>
    47.     </dependencies>
    48.     <build>
    49.         <finalName>demo</finalName>
    50.         <resources>
    51.             <resource>
    52.                 <directory>src/main/resources</directory>
    53.                 <includes>
    54.                     <include>**/*.properties</include>
    55.                     <include>**/*.xml</include>
    56.                 </includes>
    57.                 <filtering>false</filtering>
    58.             </resource>
    59.             <resource>
    60.                 <directory>src/main/java</directory>
    61.                 <includes>
    62.                     <include>**/*.properties</include>
    63.                     <include>**/*.xml</include>
    64.                 </includes>
    65.                 <filtering>false</filtering>
    66.             </resource>
    67.         </resources>
    68.         <plugins>
    69.             <plugin>
    70.                 <groupId>org.apache.maven.plugins</groupId>
    71.                 <artifactId>maven-compiler-plugin</artifactId>
    72.                 <version>3.6.2</version>
    73.                 <configuration>
    74.                     <source>${jdk.version}</source>
    75.                     <target>${jdk.version}</target>
    76.                     <encoding>utf8</encoding>
    77.                 </configuration>
    78.             </plugin>
    79.             <!-- The configuration of maven-assembly-plugin -->
    80.             <plugin>
    81.                 <groupId>org.apache.maven.plugins</groupId>
    82.                 <artifactId>maven-assembly-plugin</artifactId>
    83.                 <version>3.1.0</version>
    84.                 <!-- The configuration of the plugin -->
    85.                 <configuration>
    86.                     <!-- Specifies the configuration file of the assembly plugin -->
    87.                     <descriptors>
    88.                         <descriptor>src/main/assembly/package.xml</descriptor>
    89.                     </descriptors>
    90.                     <!-- 设为 FALSE, 防止 WAR 包名加入 assembly.xml 中的 ID -->
    91.                     <appendAssemblyId>false</appendAssemblyId>
    92.                 </configuration>
    93.                 <executions>
    94.                     <execution>
    95.                         <id>make-assembly</id>
    96.                         <phase>package</phase>
    97.                         <goals>
    98.                             <goal>single</goal>
    99.                         </goals>
    100.                     </execution>
    101.                 </executions>
    102.             </plugin>
    103.             <plugin>
    104.                 <artifactId>maven-war-plugin</artifactId>
    105.                 <version>2.6</version>
    106.                 <configuration>
    107.                     <warSourceDirectory>${basedir}/src/main/webapp
    108.                     </warSourceDirectory>
    109.                     <webXml>${basedir}/src/main/webapp/WEB-INF/web.xml</webXml>
    110.                 </configuration>
    111.             </plugin>
    112.             <plugin>
    113.                 <groupId>org.codehaus.mojo</groupId>
    114.                 <artifactId>findbugs-maven-plugin</artifactId>
    115.                 <version>2.3</version>
    116.                 <configuration>
    117.                     <findbugsXmlOutput>true</findbugsXmlOutput>
    118.                     <xmlOutput>true</xmlOutput>
    119.                 </configuration>
    120.             </plugin>
    121.         </plugins>
    122.     </build>
    123.     <packaging>war</packaging>
    124. </project>
    1. 创建打包文件package.xml，将打包策略写入其中
    1. <assembly>
    2.     <id>${project.artifactId}-assembly-${project.version}</id>
    3.     <!-- 默认为 TRUE, 设为 FALSE, 防止将 ${project.finalName} 作为根目录打进 WAR 包 -->
    4.     <!-- TRUE 结构: ${project.finalName}.war/${project.finalName}/WEB-INF -->
    5.     <!-- FALSE 结构: ${project.finalName}.war/WEB-INF -->
    6.     <includeBaseDirectory>false</includeBaseDirectory>
    7.     <!-- 设置为 WAR 包格式 -->
    8.     <formats>
    9.         <format>war</format>
    10.     </formats>
    11.     <fileSets>
    12.         <!-- 将 target/classes 下的文件输出到 WEB-INF/classes -->
    13.         <fileSet>
    14.             <directory>${project.build.outputDirectory}</directory>
    15.             <outputDirectory>WEB-INF/classes</outputDirectory>
    16.         </fileSet>
    17.         <!-- 将 webapp 下的文件输出到 WAR 包 -->
    18.         <fileSet>
    19.             <directory>${project.basedir}/src/main/webapp</directory>
    20.             <outputDirectory>/</outputDirectory>
    21.         </fileSet>
    22.     </fileSets>
    23.     <!-- 将项目依赖的JAR包输出到 WEB-INF/lib -->
    24.     <dependencySets>
    25.         <dependencySet>
    26.             <outputDirectory>WEB-INF/lib</outputDirectory>
    27.             <excludes>
    28.                 <exclude>${project.groupId}:${project.artifactId}:war</exclude>
    29.             </excludes>
    30.         </dependencySet>
    31.     </dependencySets>
    32. </assembly>