我通过查看 job.jar 在nodemanager机器上。job.jar的结构是：

BOOT-INF/class/xxx

这是不合理的。
我试着用war替换jar包，它成功了！

<packaging>war</packaging>

<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<!--exclude inner tomcat-->
    <exclusions>
        <exclusion>
            <artifactId>spring-boot-starter-tomcat</artifactId>
            <groupId>org.springframework.boot</groupId>
        </exclusion>
    </exclusions>
</dependency>
<!-- include tomcat-->
<dependency>
    <groupId>org.apache.tomcat</groupId>
    <artifactId>tomcat-servlet-api</artifactId>
    <version>7.0.47</version>
    <scope>provided</scope>
</dependency>
...

然后添加开始类：

import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.web.support.SpringBootServletInitializer;

public class SpringBootStartApplication extends SpringBootServletInitializer {

    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {
        // 
        return builder.sources(xxxPortalApplication.class);
    }
}