RMI no such object in table异常

问题描述

同一RMI服务端export多个远程服务实现时，在客户端调用时有的能访问，有的不能访问，出现异常：NoSuchObjectException: no such object in table

问题分析

在远程服务器export服务实现时是通过匿名对象的方式：

SmsSenderImplsmsSender = new SmsSenderImpl();

iSmsSender =(ISmsSender) UnicastRemoteObject.exportObject(smsSender, 0);

registry.bind("SmsSender",iSmsSender);

在匿名对象创建后，没有其他的引用，方法返回后，可能会被System GC（垃圾回收），所以出现可能该对象不存在的现象。

解决方法

public static SmsSenderImpl smsSender = new SmsSenderImpl();//用static，避免NoSuchObjectException
public static ISmsSender iSmsSender = null;
public static void startSmsServer() {
	try {
		iSmsSender = (ISmsSender) UnicastRemoteObject.exportObject(smsSender, 0);
		Registry registry = null;
		int port = 9999;
		try{
			registry = LocateRegistry.getRegistry(port);
			registry.list();
		}catch(Exception ex){
			registry = LocateRegistry.createRegistry(port);
		}
		registry.bind("SmsSender", iSmsSender);
		logger.info("启动远程短信调用接口...");
	} catch (Exception e) {
		logger.error("启动远程短信调用接口异常!", e);
	}
}

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RMI no such object in table异常

原文：http://blog.csdn.net/jakey766/article/details/26244851