我已经在 java SE 中设置了基本的 maven 项目,并带有一个资源:
main
-java
-resources
-config -> database.properties
现在因为我不想在最终的 jar 中使用这个资源,所以我定义:
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<version>2.4</version>
<configuration>
<excludes>
<exclude>config/database.properties</exclude>
</excludes>
</configuration>
<executions>
<execution>
<id>make-jar-ultimateParser</id>
<phase>package</phase>
<goals>
<goal>jar</goal>
</goals>
<configuration>
<outputDirectory>${project.build.directory}/dist</outputDirectory>
<finalName>testApp</finalName>
<archive>
<compress>false</compress>
<!-- Manifest - MainClass & ClassPath -->
<manifest>
<mainClass>aa.bb.Class</mainClass>
<addClasspath>true</addClasspath>
<classpathPrefix>lib/</classpathPrefix>
</manifest>
<manifestEntries>
<Class-Path>config/database.properties</Class-Path>
</manifestEntries>
</archive>
</configuration>
</execution>
</executions>
</plugin>
<!-- Copy configuration files -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-resources-plugin</artifactId>
<version>2.6</version>
<executions>
<execution>
<id>copy-resources</id>
<phase>validate</phase>
<goals>
<goal>copy-resources</goal>
</goals>
<configuration>
<outputDirectory>${project.build.directory}/dist/config</outputDirectory>
<resources>
<resource>
<directory>src/main/resources/config</directory>
</resource>
</resources>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.0</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
</plugins>
</build>
因此资源位于类路径中,并且包含资源的目录被复制到最终的 jar 中。
我的清单如下所示:“Class-Path: config/database.properties”
但我无法阅读它:
String db = "/config/database.properties";
properties = new Properties();
properties.load(getClass().getResourceAsStream(db));
我尝试了绝对/相对路径,getClass()/ClassLoader
. 没有什么。它在 NetBeans 中完美运行,仅此而已。