1、jar包封装完成后，其他项目引用jar，启动时报错java.lang.SecurityException: Invalid signature file digest for Manifest main attributes
这是因为jar中MATE-INF目录下存在*.SF,*.DSA,*.RSA文件，这些文件中有签名导致错误，删除即可
推荐直接在打包的时候排除掉 pom如下：
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>3.3.0</version>
<configuration>
<!-- put your configurations here -->
<filters>
<filter>
<artifact>*:*</artifact>
<excludes>
<exclude>META-INF/*.SF</exclude>
<exclude>META-INF/*.DSA</exclude>
<exclude>META-INF/*.RSA</exclude>
</excludes>
</filter>
</filters>
</configuration>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
2、maven依赖冲突
idea使用maven helper插件查看依赖冲突，https://plugins.jetbrains.com/plugin/7179-maven-helper
原文：https://www.cnblogs.com/unchain/p/15237951.html