maven打包时过滤文件及排除依赖包 .

maven打包时会把该包依赖的包一起打进来，但某些时候我们并不需要这些包，例如xerces（用于解析XML）导进来后可能会造成tomcat启动的异常（包冲突），需要打包时排除掉。


1、排除依赖包
    

     <dependency>
            <groupId>commons-dbcp</groupId>
            <artifactId>commons-dbcp</artifactId>
            <version>1.2.1</version>
            <exclusions>
                <exclusion>
                    <artifactId>xercesImpl</artifactId>
                    <groupId>xerces</groupId>
                </exclusion>
            </exclusions>
        </dependency>

2、过滤文件

<build>        

        <resources>

            <resource>

                <directory>src/main/java</directory>

                <!-- 包含 -->

                <includes>

                    <include>**/*.vm</include>

                    <include>**/*.properties</include>

                </includes>

                <!-- 排除  -->

                <excludes>

                <exclude>**/*.log</exclude>

                </excludes>

            </resource>

            <resource>

                <directory>src/main/resources</directory>

                <filtering>true</filtering>

                <includes>

                    <include>**/*.*</include>

                </includes>

                <excludes>

                <exclude>**/*.log</exclude>

                </excludes>

            </resource>

        </resources>

</build>