Maven 程序集:包含 JDBC
我正在尝试从 Maven 项目构建单个 .jar 文件,其中包含所有必要的依赖项。因此,.jar 应该在缺少库的计算机上运行。
在我的 pom.xml 中:
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.15</version>
<exclusions>
<exclusion>
<groupId>com.sun.jmx</groupId>
<artifactId>jmxri</artifactId>
</exclusion>
<exclusion>
<groupId>com.sun.jdmk</groupId>
<artifactId>jmxtools</artifactId>
</exclusion>
<exclusion>
<groupId>javax.jms</groupId>
<artifactId>jms</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.hsqldb</groupId>
<artifactId>hsqldb</artifactId>
<version>2.2.4</version>
</dependency>
</dependencies>
在 pom.xml 的部分中,我使用了 assembly-plugin:
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<configuration>
<descriptors>
<descriptor>src/assemble/exe.xml</descriptor>
</descriptors>
<archive>
<manifestFile>src/main/resources/META-INF/MANIFEST.MF</manifestFile>
</archive>
</configuration>
</plugin>
“src/assemble/exe.xml” 文件:
<assembly>
<id>exe</id>
<formats>
<format>jar</format>
</formats>
<includeBaseDirectory>false</includeBaseDirectory>
<dependencySets>
<dependencySet>
<outputDirectory></outputDirectory>
<outputFileNameMapping></outputFileNameMapping>
<unpack>true</unpack>
<scope>runtime</scope>
<includes>
<include>log4j:log4j</include>
<include>hsqldb:hsqldb</include>
</includes>
</dependencySet>
</dependencySets>
<fileSets>
<fileSet>
<directory>target/classes</directory>
<outputDirectory></outputDirectory>
</fileSet>
</fileSets>
</assembly>
整个构建过程完美运行(使用 Eclipse 和 m2e)。 我在输出中提到了以下行:
[INFO] Reading assembly descriptor: src/assemble/exe.xml
[WARNING] The following patterns were never triggered in this artifact inclusion filter:
o 'hsqldb:hsqldb'
Calling the result .jar with java -jar 结果.jar 无法加载/找不到 HSQLDB JDBC 驱动程序。由于控制台上有正常的 (System.out.println) 和 log4j 输出,我怀疑只有 hsqldb 库丢失。
如何使用 Maven assembly-plugin 将它们包含在 .jar 中? (我的系统:Eclipse Indigo,m2e 1.0.100.20110804,Maven 3.0.2,Java 1.6.0.26)
I'm trying to build a single .jar file from a Maven project which includes every necessary dependency. Therefore the .jar should run on a computer with missing libraries.
The in my pom.xml:
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.15</version>
<exclusions>
<exclusion>
<groupId>com.sun.jmx</groupId>
<artifactId>jmxri</artifactId>
</exclusion>
<exclusion>
<groupId>com.sun.jdmk</groupId>
<artifactId>jmxtools</artifactId>
</exclusion>
<exclusion>
<groupId>javax.jms</groupId>
<artifactId>jms</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.hsqldb</groupId>
<artifactId>hsqldb</artifactId>
<version>2.2.4</version>
</dependency>
</dependencies>
In the part of the pom.xml I use the assembly-plugin:
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<configuration>
<descriptors>
<descriptor>src/assemble/exe.xml</descriptor>
</descriptors>
<archive>
<manifestFile>src/main/resources/META-INF/MANIFEST.MF</manifestFile>
</archive>
</configuration>
</plugin>
The "src/assemble/exe.xml" file:
<assembly>
<id>exe</id>
<formats>
<format>jar</format>
</formats>
<includeBaseDirectory>false</includeBaseDirectory>
<dependencySets>
<dependencySet>
<outputDirectory></outputDirectory>
<outputFileNameMapping></outputFileNameMapping>
<unpack>true</unpack>
<scope>runtime</scope>
<includes>
<include>log4j:log4j</include>
<include>hsqldb:hsqldb</include>
</includes>
</dependencySet>
</dependencySets>
<fileSets>
<fileSet>
<directory>target/classes</directory>
<outputDirectory></outputDirectory>
</fileSet>
</fileSets>
</assembly>
The whole build process works flawlessly (using Eclipse and m2e).
I mentioned the following line in the output:
[INFO] Reading assembly descriptor: src/assemble/exe.xml
[WARNING] The following patterns were never triggered in this artifact inclusion filter:
o 'hsqldb:hsqldb'
Calling the resulting .jar with
java -jar result.jar
the HSQLDB JDBC driver can't be loaded / was not found. As there is normal (System.out.println) and also log4j output on the console, I suspect that only the hsqldb libraries are missing.
How can they be included in the .jar with Maven assembly-plugin?
(My System: Eclipse Indigo, m2e 1.0.100.20110804, Maven 3.0.2, Java 1.6.0.26)
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请注意,HSQLDB JDBC 驱动程序的工件名称将是
org.hsqldb:hsqldb
而不是hsqldb:hsqldb
正如您在exe.xml
。解决这个问题!Note that the artifact name of the HSQLDB JDBC driver would be
org.hsqldb:hsqldb
and nothsqldb:hsqldb
as you wrote in yourexe.xml
. Fix that!