【发布时间】：2021-05-06 19:17:53
【问题描述】：
我一直在尝试使用 Maven 将属性文件打包到我的 jar 中，但到目前为止还没有成功。
项目结构：
src/main/java
All java source files
src/test/java
All test java source files
src/main/resource
All properties files. For example, application.properties
...
pom.xml
POM.XML 文件内容：
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>Database</groupId>
<artifactId>Executor</artifactId>
<version>0.1</version>
<packaging>jar</packaging>
<name>DatabaseExecutor</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<spring.framework.version>5.2.0.RELEASE</spring.framework.version>
<spring.framework.group.id>org.springframework</spring.framework.group.id>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<fully.qualified.main.class>com.applications.App</fully.qualified.main.class>
</properties>
<dependencies>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-api</artifactId>
<version>2.14.0</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
<version>2.14.0</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>${spring.framework.group.id}</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.framework.version}</version>
</dependency>
<dependency>
<groupId>${spring.framework.group.id}</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.framework.version}</version>
</dependency>
<dependency>
<groupId>${spring.framework.group.id}</groupId>
<artifactId>spring-aop</artifactId>
<version>${spring.framework.version}</version>
</dependency>
<dependency>
<groupId>${spring.framework.group.id}</groupId>
<artifactId>spring-beans</artifactId>
<version>${spring.framework.version}</version>
</dependency>
<dependency>
<groupId>${spring.framework.group.id}</groupId>
<artifactId>spring-expression</artifactId>
<version>${spring.framework.version}</version>
</dependency>
<dependency>
<groupId>com.oracle</groupId>
<artifactId>ojdbc14</artifactId>
<version>12.2.0.1</version>
</dependency>
</dependencies>
<build>
<resources>
<resource>
<directory>src/main/resources</directory>
<includes>
<include>**/*.properties</include>
</includes>
</resource>
</resources>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>3.1.2</version>
<executions>
<execution>
<id>copy-dependencies</id>
<phase>prepare-package</phase>
<goals>
<goal>copy-dependencies</goal>
</goals>
<configuration>
<outputDirectory>${project.build.directory}/libs</outputDirectory>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<version>3.2.0</version>
<artifactId>maven-jar-plugin</artifactId>
<configuration>
<archive>
<manifest>
<addClasspath>true</addClasspath>
<classpathPrefix>libs/</classpathPrefix>
<mainClass>${fully.qualified.main.class}</mainClass>
</manifest>
</archive>
</configuration>
</plugin>
</plugins>
</build>
</project>
我创建了一个build.bat 文件来构建具有以下内容的代码。
@ECHO OFF
call mvn -e pre-clean
call mvn -e clean
call mvn -e compile
call mvn -e package -DskipTests
命令提示符日志：
[INFO] Error stacktraces are turned on.
[INFO] Scanning for projects...
[INFO]
[INFO] -------------------------< Database:Executor >--------------------------
[INFO] Building DatabaseExecutor 0.1
[INFO] --------------------------------[ jar ]---------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 0.146 s
[INFO] Finished at: 2021-02-02T19:10:26+05:30
[INFO] ------------------------------------------------------------------------
[INFO] Error stacktraces are turned on.
[INFO] Scanning for projects...
[INFO]
[INFO] -------------------------< Database:Executor >--------------------------
[INFO] Building DatabaseExecutor 0.1
[INFO] --------------------------------[ jar ]---------------------------------
[INFO]
[INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ Executor ---
[INFO] Deleting C:\Users\VarunJain\Documents\Personal\DevEnv\_Setups\PracticeWorkspace\DatabaseExecutor\target
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 0.465 s
[INFO] Finished at: 2021-02-02T19:10:28+05:30
[INFO] ------------------------------------------------------------------------
[INFO] Error stacktraces are turned on.
[INFO] Scanning for projects...
[INFO]
[INFO] -------------------------< Database:Executor >--------------------------
[INFO] Building DatabaseExecutor 0.1
[INFO] --------------------------------[ jar ]---------------------------------
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ Executor ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory C:\Users\VarunJain\Documents\Personal\DevEnv\_Setups\PracticeWorkspace\DatabaseExecutor\src\main\resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ Executor ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 2 source files to C:\Users\VarunJain\Documents\Personal\DevEnv\_Setups\PracticeWorkspace\DatabaseExecutor\target\classes
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2.165 s
[INFO] Finished at: 2021-02-02T19:10:33+05:30
[INFO] ------------------------------------------------------------------------
[INFO] Error stacktraces are turned on.
[INFO] Scanning for projects...
[INFO]
[INFO] -------------------------< Database:Executor >--------------------------
[INFO] Building DatabaseExecutor 0.1
[INFO] --------------------------------[ jar ]---------------------------------
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ Executor ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory C:\Users\VarunJain\Documents\Personal\DevEnv\_Setups\PracticeWorkspace\DatabaseExecutor\src\main\resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ Executor ---
[INFO] Nothing to compile - all classes are up to date
[INFO]
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ Executor ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory C:\Users\VarunJain\Documents\Personal\DevEnv\_Setups\PracticeWorkspace\DatabaseExecutor\src\test\resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ Executor ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 1 source file to C:\Users\VarunJain\Documents\Personal\DevEnv\_Setups\PracticeWorkspace\DatabaseExecutor\target\test-classes
[INFO]
[INFO] --- maven-surefire-plugin:2.12.4:test (default-test) @ Executor ---
[INFO] Tests are skipped.
[INFO]
[INFO] --- maven-dependency-plugin:3.1.2:copy-dependencies (copy-dependencies) @ Executor ---
[INFO] Copying log4j-api-2.14.0.jar to C:\Users\VarunJain\Documents\Personal\DevEnv\_Setups\PracticeWorkspace\DatabaseExecutor\target\libs\log4j-api-2.14.0.jar
[INFO] Copying log4j-core-2.14.0.jar to C:\Users\VarunJain\Documents\Personal\DevEnv\_Setups\PracticeWorkspace\DatabaseExecutor\target\libs\log4j-core-2.14.0.jar
[INFO] Copying junit-3.8.1.jar to C:\Users\VarunJain\Documents\Personal\DevEnv\_Setups\PracticeWorkspace\DatabaseExecutor\target\libs\junit-3.8.1.jar
[INFO] Copying spring-core-5.2.0.RELEASE.jar to C:\Users\VarunJain\Documents\Personal\DevEnv\_Setups\PracticeWorkspace\DatabaseExecutor\target\libs\spring-core-5.2.0.RELEASE.jar
[INFO] Copying spring-jcl-5.2.0.RELEASE.jar to C:\Users\VarunJain\Documents\Personal\DevEnv\_Setups\PracticeWorkspace\DatabaseExecutor\target\libs\spring-jcl-5.2.0.RELEASE.jar
[INFO] Copying spring-context-5.2.0.RELEASE.jar to C:\Users\VarunJain\Documents\Personal\DevEnv\_Setups\PracticeWorkspace\DatabaseExecutor\target\libs\spring-context-5.2.0.RELEASE.jar
[INFO] Copying spring-aop-5.2.0.RELEASE.jar to C:\Users\VarunJain\Documents\Personal\DevEnv\_Setups\PracticeWorkspace\DatabaseExecutor\target\libs\spring-aop-5.2.0.RELEASE.jar
[INFO] Copying spring-beans-5.2.0.RELEASE.jar to C:\Users\VarunJain\Documents\Personal\DevEnv\_Setups\PracticeWorkspace\DatabaseExecutor\target\libs\spring-beans-5.2.0.RELEASE.jar
[INFO] Copying spring-expression-5.2.0.RELEASE.jar to C:\Users\VarunJain\Documents\Personal\DevEnv\_Setups\PracticeWorkspace\DatabaseExecutor\target\libs\spring-expression-5.2.0.RELEASE.jar
[INFO] Copying ojdbc14-12.2.0.1.jar to C:\Users\VarunJain\Documents\Personal\DevEnv\_Setups\PracticeWorkspace\DatabaseExecutor\target\libs\ojdbc14-12.2.0.1.jar
[INFO]
[INFO] --- maven-jar-plugin:3.2.0:jar (default-jar) @ Executor ---
[INFO] Building jar: C:\Users\VarunJain\Documents\Personal\DevEnv\_Setups\PracticeWorkspace\DatabaseExecutor\target\Executor-0.1.jar
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 4.292 s
[INFO] Finished at: 2021-02-02T19:10:39+05:30
[INFO] ------------------------------------------------------------------------
虽然可执行 jar 文件已成功创建，但 jar 文件中缺少属性文件。我不确定这里有什么错误。有人可以指出错误或告诉我是否遗漏了什么。
提前致谢，
瓦伦·贾恩
【问题讨论】：
-
应该开箱即用
-
无需使用包含配置资源。默认情况下，
src/main/resources中的所有文件都将打包到生成的 jar 文件中...此外，要获得可执行的 jar，您应该查看 maven-assembly-plugin 而不是使用依赖插件来复制和 jar 插件等...除了如果你有一个appllication.properties，它看起来像一个spring boot应用程序，应该通过spring-boot-maven-plugin等打包...... -
这部分很有趣：
[INFO] skip non existing resourceDirectory C:\Users\VarunJain\Documents\Personal\DevEnv\_Setups\PracticeWorkspace\DatabaseExecutor\src\main\resources... ? -
@Antoniossss：这就是我在遇到问题之前的理解。但它并没有将属性包装在 jar 内。
-
@khmarbaise：您注意到它跳过了“resourceDirectory”这一点很好。我的应用程序不是 Spring Boot 应用程序，但我添加了所有依赖项，尽管我忘记删除不必要的依赖项。 “maven-assembly-plugin”的问题是jar不可执行，即MANIFEST.MF的“main-class”属性完全缺失。
标签： java maven java-8 maven-dependency-plugin maven-jar-plugin