The problem of jar running on Linux is reported and the problem is solved

The ultimate solution: java -cp xxxxx.jar package. The class where the main function is located;

Example: java -cp java_linux_dep_t-1.4-SNAPSHOT.jar com.test.run.MainEntry

Execute the command java -jar xxxxx.jar

Error 1: no main manifest attribute, in xxxxxxx.jar

Reason: main method not found

Solution: Add the following plug-in configuration in pom.xml ( the mainClass item needs to be modified according to its own class name; only need to write the class name, no need to add groupId and artifactId!!! )

<build>
        <plugins>
            <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>
                                <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                                    <mainClass>这里只写main函数所在类名即可</mainClass>
                                </transformer>
                            </transformers>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

错误2：Error: Could not find or load main class com.ab.java_linux_dep_t.main_entry

Reason: The mainClass configuration mentioned above is wrong

Solution: Only the class name needs to be written in mainClass, no need to add groupId and artifactId! ! !