Maven POM 配置技巧(一)
一、排除传递依赖的某个jar，以避免版本冲突。例如: 开发工程中需要引用struts2(2.0.11.2)和freemarker(2.3.16)，但该struts2默认依赖的是freemarker(2.3.8)，可参考以下方式编写:view plain<dependency> <groupId>org.apache.struts</groupId> <artifactId>struts2-core</artifactId> <version>2.0.11.2</version> <type>jar</type> <scope>compile</scope> <exclusions> <exclusion> <!-- 排除freemarker,以避免版本冲突 --> <groupId>freemarker</groupId> <artifactId>freemarker</artifactId> </exclusion> </exclusions> </dependency> <dependency> <groupId>org.freemarker</groupId> <artifactId>freemarker</artifactId> <version>2.3.16</version> <type>jar</type> <scope>compile</scope> </dependency> 二、发布jar包同时发布源码view plain <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-source-plugin</artifactId> <version>2.1.2</version> <configuration> <attach>true</attach> </configuration> <executions> <execution> <phase>compile</phase> <goals> <goal>jar</goal> </goals> </execution> </executions> </plugin> 三、Eclipse开发时，为方便使用内置tomcat调试，需将所依赖的jar包复制到WEB-INF/lib目录下。可通过以下配置:view plain<plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-dependency-plugin</artifactId> <version>2.1</version> <executions> <execution> <id>copy</id> <phase>package</phase> <goals> <goal>copy-dependencies</goal> </goals> <configuration> <outputDirectory>src/main/webapp/WEB-INF/lib</outputDirectory> </configuration> </execution> </executions> </plugin> 配置完成后。每次有添加jar包依赖时，需运行一次mvn package命令。 四、有时工程中想复用其它工程中的静态内容(image/css/js)，为方便开发调试，需将相应的静态内容，解压缩到当前工程的webapp目录下。可通过以下配置:view plain<plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-dependency-plugin</artifactId> <version>2.1</version> <executions> <execution> <id>copy-statics</id> <phase>generate-resources</phase> <goals> <goal>unpack</goal> </goals> <configuration> <artifactItems> <artifactItem> <groupId>com.yihaodian.front</groupId> <artifactId>front-global</artifactId> <version>1.0-SNAPSHOT</version> <classifier>statics</classifier> <type>zip</type> <overWrite>true</overWrite> <outputDirectory>src/main/webapp</outputDirectory> </artifactItem> </artifactItems> </configuration> </execution> </executions> </plugin> 配置完成后，需运行一次mvn generate-resources命令。
