如何在包装中包括外部罐子

问题描述

我有打包到jar中的spring boot项目。 我将外部jar（Jasper）添加到pom中，如下所示：

<dependency>
            <groupId>net.sf.jasperreports</groupId>
            <artifactId>jasperreports</artifactId>
            <version>${jasperreports.version}</version>
            <scope>system</scope>
            <systemPath>${project.basedir}/lib/jasperreports-6.13.0.jar</systemPath>
    </dependency>
    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <executions>
                    <execution>
                        <id>install-jasperreports613</id>
                        <phase>clean</phase>
                        <configuration>
                            <file>${project.basedir}/lib/jasperreports-6.13.0.jar</file>
                            <repositoryLayout>default</repositoryLayout>
                            <groupId>net.sf.jasperreports</groupId>
                            <artifactId>jasperreports</artifactId>
                            <version>6.13.0</version>
                            <packaging>jar</packaging>
                            <generatePom>true</generatePom>
                        </configuration>
                        <goals>
                            <goal>install-file</goal>
                        </goals>
                    </execution>

                </executions>
            </plugin>

        </plugins>
    </build>

运行jar（java -jar myapp.jar）时，我是jasper的gettig classdefNotfound。

Caused by: java.lang.NoClassDefFoundError: net/sf/jasperreports/engine/JRDataSource
        at java.lang.class.getDeclaredMethods0(Native Method) ~[na:1.8.0_202]
        at java.lang.class.privateGetDeclaredMethods(UnkNown Source) ~[na:1.8.0_202]
        at java.lang.class.getDeclaredMethods(UnkNown Source) ~[na:1.8.0_202]
        at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:463) ~[spring-core-5.2.9.RELEASE.jar!/:5.2.9.RELEASE]
        ... 29 common frames omitted
Caused by: java.lang.classNotFoundException: net.sf.jasperreports.engine.JRDataSource
        at java.net.urlclassloader.findClass(UnkNown Source) ~[na:1.8.0_202]
        at java.lang.classLoader.loadClass(UnkNown Source) ~[na:1.8.0_202]
        at org.springframework.boot.loader.Launchedurlclassloader.loadClass(Launchedurlclassloader.java:151) ~[e-statement-core-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]
        at java.lang.classLoader.loadClass(UnkNown Source) ~[na:1.8.0_202]
        ... 33 common frames omitted
    
    

当我提取软件包时，软件包中没有jasper lib。 如何将外部库包含到程序包中。

解决方法

jar jasperreports位于MavenCentral上。因此，如果您可以访问互联网，则无需手动进行处理。