Spring Boot工程中如果有多个main()函数，需要指定启动类

Xml代码

1. <properties>  
2.     <!-- The main class to start by executing java -jar -->  
3.     <start-class>com.rensanning.springboot.SpringBootDemoApplication</start-class>  
4. </properties> 

或者

1. <build>  
2.     <plugins>  
3.         <plugin>  
4.             <groupId>org.springframework.boot</groupId>  
5.             <artifactId>spring-boot-maven-plugin</artifactId>  
6.             <configuration>  
7.                 <mainClass>com.rensanning.springboot.SpringBootDemoApplication</mainClass>  
8.             </configuration>  
9.         </plugin>  
10.     </plugins>  
11. </build>