我想创建一个jar发送给同事用于测试目的。我计划在Eclipse IDE工作正常。然而,当我尝试使用MVN安装和MVN包把它编译成一个罐子里,当我尝试运行jar,我收到以下错误:[NoClassDefFound] [1](点击链接见截图)。
这里是我的POM文件:
HTTP://maven.Apache.org/下水道/maven-4.0.0.下水道"> 4.0.0
<groupId>org.geotools.tutorial.tutorialCerto</groupId>
<artifactId>tutorialCerto</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>tutorial</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<geotools.version>15.1</geotools.version>
<geotools.version>17-SNAPSHOT</geotools.version>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.geotools</groupId>
<artifactId>gt-process</artifactId>
<version>${geotools.version}</version>
</dependency>
<dependency>
<groupId>org.geotools</groupId>
<artifactId>gt-shapefile</artifactId>
<version>${geotools.version}</version>
</dependency>
<dependency>
<groupId>org.geotools</groupId>
<artifactId>gt-swing</artifactId>
<version>${geotools.version}</version>
</dependency>
<dependency>
<groupId>org.geotools</groupId>
<artifactId>gt-epsg-hsql</artifactId>
<version>${geotools.version}</version>
</dependency>
<dependency>
<groupId>org.geotools</groupId>
<artifactId>gt-geotiff</artifactId>
<version>${geotools.version}</version>
</dependency>
<dependency>
<groupId>org.geotools</groupId>
<artifactId>gt-image</artifactId>
<version>${geotools.version}</version>
</dependency>
<dependency>
<groupId>org.geotools</groupId>
<artifactId>gt-wms</artifactId>
<version>${geotools.version}</version>
</dependency>
<dependency>
<groupId>org.geotools</groupId>
<artifactId>gt-swing</artifactId>
<version>${geotools.version}</version>
</dependency>
</dependencies>
<repositories>
<repository>
<id>maven2-repository.dev.java.net</id>
<name>Java.net repository</name>
<url>http://download.java.net/maven/2</url>
</repository>
<repository>
<id>osgeo</id>
<name>Open Source Geospatial Foundation Repository</name>
<url>http://download.osgeo.org/webdav/geotools/</url>
</repository>
<repository>
<snapshots>
<enabled>true</enabled>
</snapshots>
<id>boundless</id>
<name>Boundless Maven Repository</name>
<url>http://repo.boundlessgeo.com/main</url>
</repository>
</repositories>
<build>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<encoding>UTF-8</encoding>
<target>1.8</target>
<source>1.8</source>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>3.0.0</version>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<transformers>
<!-- This bit sets the main class for the executable jar as you otherwise -->
<!-- would with the assembly plugin -->
<transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
<manifestEntries>
<Main-Class>org.geotools.tutorial.tutorialCerto.ImageLab</Main-Class>
</manifestEntries>
</transformer>
<!-- This bit merges the various GeoTools META-INF/services files -->
<transformer implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer"/>
</transformers>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
我将非常感激,如果有人可以帮助我弄清楚发生了什么。
提前致谢!
编辑2
我添加以下代码只是在我的程序测试目的:
com.br.iacit.tutorialdoJar包;
public class App {
public static void main( String[] args )
{ System.out.println(com.sun.media.imageioimpl.common.PackageUtil.getVendor());
}
}
在Eclipse IDE中它显示了Sun Microsystems公司然而,在我的jar文件它打印空。也许它有什么关系呢?
我认为你缺少在类路径依赖,以纠正这个你可以使用maven依赖插件:
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<executions>
<execution>
<id>copy-dependencies</id>
<phase>prepare-package</phase>
<goals>
<goal>copy-dependencies</goal>
</goals>
<configuration>
<outputDirectory>${project.build.directory}/lib</outputDirectory>
<overWriteReleases>false</overWriteReleases>
<overWriteSnapshots>false</overWriteSnapshots>
<overWriteIfNewer>true</overWriteIfNewer>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
那么你就需要还到类路径添加到您的清单,遮阳我认为你需要在<ManifestEntries>
以下地址:
<Class-Path>${project.build.directory}/lib</Class-Path>
编辑:公平不够的,如果您不需要阴影插件,我可以建议你的是下面的POM,它使用一个简单的插件来编译depedencies的maven dependency plugin:
<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>org.test.whatever</groupId>
<artifactId>shade-tester</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>shade-tester</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<geotools.version>15.1</geotools.version>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.geotools</groupId>
<artifactId>gt-process</artifactId>
<version>${geotools.version}</version>
</dependency>
<dependency>
<groupId>org.geotools</groupId>
<artifactId>gt-shapefile</artifactId>
<version>${geotools.version}</version>
</dependency>
<dependency>
<groupId>org.geotools</groupId>
<artifactId>gt-swing</artifactId>
<version>${geotools.version}</version>
</dependency>
<dependency>
<groupId>org.geotools</groupId>
<artifactId>gt-epsg-hsql</artifactId>
<version>${geotools.version}</version>
</dependency>
<dependency>
<groupId>org.geotools</groupId>
<artifactId>gt-geotiff</artifactId>
<version>${geotools.version}</version>
</dependency>
<dependency>
<groupId>org.geotools</groupId>
<artifactId>gt-image</artifactId>
<version>${geotools.version}</version>
</dependency>
<dependency>
<groupId>org.geotools</groupId>
<artifactId>gt-wms</artifactId>
<version>${geotools.version}</version>
</dependency>
<dependency>
<groupId>org.geotools</groupId>
<artifactId>gt-swing</artifactId>
<version>${geotools.version}</version>
</dependency>
</dependencies>
<repositories>
<repository>
<id>maven2-repository.dev.java.net</id>
<name>Java.net repository</name>
<url>http://download.java.net/maven/2</url>
</repository>
<repository>
<id>osgeo</id>
<name>Open Source Geospatial Foundation Repository</name>
<url>http://download.osgeo.org/webdav/geotools/</url>
</repository>
<repository>
<snapshots>
<enabled>true</enabled>
</snapshots>
<id>boundless</id>
<name>Boundless Maven Repository</name>
<url>http://repo.boundlessgeo.com/main</url>
</repository>
</repositories>
<build>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<encoding>UTF-8</encoding>
<target>1.8</target>
<source>1.8</source>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<executions>
<execution>
<id>copy-dependencies</id>
<phase>prepare-package</phase>
<goals>
<goal>copy-dependencies</goal>
</goals>
<configuration>
<outputDirectory>${project.build.directory}/lib/</outputDirectory>
<overWriteReleases>false</overWriteReleases>
<overWriteSnapshots>false</overWriteSnapshots>
<overWriteIfNewer>true</overWriteIfNewer>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<!-- Build an executable JAR -->
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<version>3.0.2</version>
<configuration>
<archive>
<manifest>
<addClasspath>true</addClasspath>
<classpathPrefix>lib/</classpathPrefix>
<mainClass>org.test.whatever.shade_tester.App</mainClass>
</manifest>
</archive>
<excludes>
<exclude>**/*log4j*</exclude>
</excludes>
</configuration>
</plugin>
<!-- <plugin> -->
<!-- <groupId>org.apache.maven.plugins</groupId> -->
<!-- <artifactId>maven-shade-plugin</artifactId> -->
<!-- <version>3.0.0</version> -->
<!-- <executions> -->
<!-- <execution> -->
<!-- <phase>package</phase> -->
<!-- <goals> -->
<!-- <goal>shade</goal> -->
<!-- </goals> -->
<!-- <configuration> -->
<!-- <transformers> -->
<!-- This bit sets the main class for the executable jar as you otherwise -->
<!-- would with the assembly plugin -->
<!-- <transformer -->
<!-- implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer"> -->
<!-- <manifestEntries> -->
<!-- <Main-Class>org.test.whatever.shade_tester.App</Main-Class> -->
<!-- <Class-Path>lib/</Class-Path> -->
<!-- </manifestEntries> -->
<!-- </transformer> -->
<!-- This bit merges the various GeoTools META-INF/services files -->
<!-- <transformer -->
<!-- implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer"
/> -->
<!-- </transformers> -->
<!-- </configuration> -->
<!-- </execution> -->
<!-- </executions> -->
<!-- </plugin> -->
</plugins>
</build>
</project>
我解决我的问题通过添加下列属性到我的POM文件:
<manifestEntries>
<Main-Class>com.br.iacit.tutorialdoJar.ImageLab</Main-Class>
<Specification-Title>Java Advanced Imaging Image I/O Tools</Specification-Title>
<Specification-Version>1.1</Specification-Version>
<Specification-Vendor>Sun Microsystems, Inc.</Specification-Vendor>
<Implementation-Title>com.sun.media.imageio</Implementation-Title>
<Implementation-Version>1.1</Implementation-Version>
<Implementation-Vendor>Sun Microsystems, Inc.</Implementation-Vendor>
</manifestEntries>
这是我最后的POM文件:
HTTP://maven.Apache.org/下水道/maven-4.0.0.下水道"> 4.0.0
<groupId>com.br.iacit</groupId>
<artifactId>tutorialdoJar</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>tutorialdoJar</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<geotools.version>17-SNAPSHOT</geotools.version>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.geotools</groupId>
<artifactId>gt-process</artifactId>
<version>${geotools.version}</version>
</dependency>
<dependency>
<groupId>org.geotools</groupId>
<artifactId>gt-shapefile</artifactId>
<version>${geotools.version}</version>
</dependency>
<dependency>
<groupId>org.geotools</groupId>
<artifactId>gt-swing</artifactId>
<version>${geotools.version}</version>
</dependency>
<dependency>
<groupId>org.geotools</groupId>
<artifactId>gt-epsg-hsql</artifactId>
<version>${geotools.version}</version>
</dependency>
<dependency>
<groupId>org.geotools</groupId>
<artifactId>gt-geotiff</artifactId>
<version>${geotools.version}</version>
</dependency>
<dependency>
<groupId>org.geotools</groupId>
<artifactId>gt-image</artifactId>
<version>${geotools.version}</version>
</dependency>
<dependency>
<groupId>org.geotools</groupId>
<artifactId>gt-wms</artifactId>
<version>${geotools.version}</version>
</dependency>
<dependency>
<groupId>org.geotools</groupId>
<artifactId>gt-swing</artifactId>
<version>${geotools.version}</version>
</dependency>
<dependency>
<groupId>com.github.jai-imageio</groupId>
<artifactId>jai-imageio-core</artifactId>
<version>1.3.0</version>
</dependency>
<dependency>
<groupId>org.geotools</groupId>
<artifactId>gt-imageio-ext-gdal</artifactId>
<version>${geotools.version}</version>
</dependency>
</dependencies>
<repositories>
<repository>
<id>maven2-repository.dev.java.net</id>
<name>Java.net repository</name>
<url>http://download.java.net/maven/2</url>
</repository>
<repository>
<id>osgeo</id>
<name>Open Source Geospatial Foundation Repository</name>
<url>http://download.osgeo.org/webdav/geotools/</url>
</repository>
<repository>
<snapshots>
<enabled>true</enabled>
</snapshots>
<id>boundless</id>
<name>Boundless Maven Repository</name>
<url>http://repo.boundlessgeo.com/main</url>
</repository>
</repositories>
<build>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<encoding>UTF-8</encoding>
<target>1.8</target>
<source>1.8</source>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>3.0.0</version>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<transformers>
<!-- This bit sets the main class for the executable jar as you otherwise -->
<!-- would with the assembly plugin -->
<transformer
implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
<manifestEntries>
<Main-Class>com.br.iacit.tutorialdoJar.ImageLab</Main-Class>
<Specification-Title>Java Advanced Imaging Image I/O Tools</Specification-Title>
<Specification-Version>1.1</Specification-Version>
<Specification-Vendor>Sun Microsystems, Inc.</Specification-Vendor>
<Implementation-Title>com.sun.media.imageio</Implementation-Title>
<Implementation-Version>1.1</Implementation-Version>
<Implementation-Vendor>Sun Microsystems, Inc.</Implementation-Vendor>
</manifestEntries>
</transformer>
<!-- This bit merges the various GeoTools META-INF/services files -->
<transformer
implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer" />
</transformers>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
我面临着同样的问题。但现在它的工作对我罚款。试试下面的步骤。
首先你需要删除指定位置这个“.m2目录”文件
Windows中:C:\用户\ .m2目录
然后 - 更新您的Maven项目。然后 - 全新安装,一切似乎要被罚款