问无服务函数安装官方JAVA例子编写调试为什么不成功？

package example; import com.qcloud.scf.runtime.Context; public class Hello { public String mainHandler(String name, Context context) { System.out.println("Hello world!"); return String.format("Hello %s.", name); } }

日志 No public method named mainHandle with appropriate method signature found on class class example.Hello scfinternal.UserFault.makeUserFault(UserFault.java:29) scfinternal.EventHandlerLoader.loadEventBaseHandler(EventHandlerLoader.java:120) scfinternal.EventHandlerLoader.loadEventHandler(EventHandlerLoader.java:71)