maven packages the project into a jar (including dependencies)

[b] Step 1: Add in your pom.xml

<plugin>
    <artifactId>maven-assembly-plugin</artifactId>
    <version>2.2</version>
    <configuration>
     <archive>
     <manifest>
       <mainClass>cn.com.threetcloud.agent.server.BrokerServer</mainClass>
      </manifest>
     </archive>
     <descriptorRefs>
      <descriptorRef>
       jar-with-dependencies
      </descriptorRef>
     </descriptorRefs>
    </configuration>
 </plugin>

Step 2: CMD enters its own project folder to perform the mvn assembly:assembly operation

, then the operation steps are

2: d: Enter

4: cd test Enter



Step 3: CMD runs the jar file just exported through the java command, Generally, after exporting, under the target folder of your own project,

the operation steps are

2: d: Enter

4: cd test Enter

5: java -jar agent-server-0.0.1-jar-with-dependencies.jar Enter



answer : Because you can't double-click to see what went wrong, including the information output by our console, you can display these information on a black screen after running the java command.