1. 在項(xiàng)目根目錄下新建lib文件夾，將外部jar包拷進(jìn)去

   
   
   lib下放jar包
2. 修改pom文件

<!--引入外部jar包-->
        <dependency>
            <groupId>casclient</groupId>
            <artifactId>casclient</artifactId>
            <version>1.6.1</version>
            <scope>system</scope>
            <systemPath>${project.basedir}/lib/casclient-1.6.1.jar</systemPath>
        </dependency>

systemPath為jar包的根路徑

<build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <executions>
                    <execution>
                        <goals>
                            <goal>repackage</goal>
                        </goals>
                    </execution>
                </executions>
                <configuration>
                    <includeSystemScope>true</includeSystemScope>
                </configuration>
            </plugin>
        </plugins>
    </build>

3. pom文件配完打包就不會(huì)出錯(cuò)了，沒有配置pom文件在ide里不會(huì)報(bào)錯(cuò)，但是用maven打包后運(yùn)行就會(huì)報(bào)錯(cuò)。