使用meaven打包过程中遇到的一些问题

开始使用如下代码进行打包

<build>
        <!-- mvn assembly:assembly -Dmaven.test.skip=true -->
        <plugins>
            <plugin>
                <artifactId>maven-assembly-plugin</artifactId>
                <version>2.2-beta-5</version>
                <configuration>
                    <appendAssemblyId>false</appendAssemblyId>
                    <descriptorRefs>
                        <descriptorRef>jar-with-dependencies</descriptorRef>
                    </descriptorRefs>
                    <archive>
                        <manifest>
                            <mainClass>com.fxc.rpc.impl.member.MemberProvider</mainClass>
                        </manifest>
                    </archive>
                </configuration>
                <executions>
                    <execution>
                        <id>make-assembly</id>
                        <phase>package</phase>
                        <goals>
                            <goal>assembly</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

 结果出现spring命名空间无法找到的错误,

org.xml.sax.SAXParseException: schema_reference.4: 无法读取方案文档 'http://www.springframework.org/schema/beans/spring-beans.xsd', 原因为 1) 无法找到文档; 2) 无法读取文档; 3) 文档的根元素不是 <xsd:schema>

据查是由于spring-core,spring-aop每一个jar中都包含了一套spring.handlers,spring.schemas文件,以至于在打包过程中发生了覆盖,网上没有搜到使用maven-assembly-plugin插件如何解决此问题,大多数人建议使用maven-shade-plugin插件,修改后pom代码如下

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-shade-plugin</artifactId>
    <version>1.4</version>
    <executions>
        <execution>
            <phase>package</phase>
            <goals>
                <goal>shade</goal>
            </goals>
            <configuration>
                <transformers>
                    <transformer
                        implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
                        <resource>META-INF/spring.handlers</resource>
                    </transformer>
                    <transformer
                        implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                        <mainClass>com.fxc.rpc.impl.member.MemberProvider</mainClass>
                    </transformer>
                    <transformer
                        implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
                        <resource>META-INF/spring.schemas</resource>
                    </transformer>
                </transformers>
            </configuration>
        </execution>
    </executions>
</plugin> 

再次打包,出现文件签名不合法的问题

Exception in thread "main" java.lang.SecurityException: Invalid signature file digest for Manifest main attributes

再查,原来是由于某些包的重复引用,以至于打包之后的META-INF的目录下多出了一些*.SF,*.DSA,*.RSA文件所致(据说解压jar包,然后删掉这些文件再次打包错误就会消失,未确认),再次修改pom.xml,最终使用如下配置文件,运行

mvn clean install -Dmaven.test.skip=true

打包成功

<plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-shade-plugin</artifactId>
            <version>1.4</version>
            <executions>
                <execution>
                    <phase>package</phase>
                    <goals>
                        <goal>shade</goal>
                    </goals>
                    <configuration>
                        <filters>
                            <filter>
                                <artifact>*:*</artifact>
                                <excludes>
                                    <exclude>META-INF/*.SF</exclude>
                                    <exclude>META-INF/*.DSA</exclude>
                                    <exclude>META-INF/*.RSA</exclude>
                                </excludes>
                            </filter>
                        </filters>

                        <transformers>
                            <transformer
                                implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
                                <resource>META-INF/spring.handlers</resource>
                            </transformer>
                            <transformer
                                implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                                <mainClass>com.fxc.rpc.impl.member.MemberProvider</mainClass>
                            </transformer>
                            <transformer
                                implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
                                <resource>META-INF/spring.schemas</resource>
                            </transformer>
                        </transformers>
                    </configuration>
                </execution>
            </executions>
        </plugin>

此时查看target目录下会发现xxx.jar 和original-xxx.jar,后一个不包含引用的jar包,直接运行前一个即可

java -jar target/xxx.jar 

成功!

PS:项目中使用了几个公司自己的jar,在公有库里没有,在eclipse里运行的时候我都是修改scope为system,调用的本地jar,但是在打包的过程中scope=system的jar是不会自己打进去的,很是让我郁闷,我只好讲这些jar安装进入本地资源库

mvn install:install-file -Dfile=my-jar.jar -DgroupId=org.richard -DartifactId=my-jar -Dversion=1.0 -Dpackaging=jar

 

 

posted @ 2013-10-07 21:25  傅心词  阅读(27762)  评论(1编辑  收藏  举报