rmi

关于<Java 中 RMI、JNDI、LDAP、JRMP、JMX、JMS那些事儿（上）>看后的一些总结-1

由 谁都会走 提交于 2020-01-23 23:41:58
原文地址： https://www.anquanke.com/post/id/194384#h3-3 1.java rmi 关于rmi客户端和服务端通信的过程，java的方法都实现在rmi服务端，客户端实际上是通过访问rmi注册表拿到stub，然后再通过它调用服务端方法，那么调用方法时要传递参数，参数可以为一般类型，也可以为引用类型，那么如果为引用类型，就能够利用服务端已经有的gaget chain来打server，因为参数实际上是序列化传输的，那么数据到达服务端后必定会经过反序列化。 客户端： RMIClient.java package com.longofo.javarmi; import java.rmi.registry.LocateRegistry; import java.rmi.registry.Registry; public class RMIClient { /** * Java RMI恶意利用demo * * @param args * @throws Exception */ public static void main(String[] args) throws Exception { Registry registry = LocateRegistry.getRegistry("127.0.0.1", 9999); // 获取远程对象的引用

Do I need all classes on the client, server and registry for RMI to work?

由 隐身守侯 提交于 2020-01-23 05:48:26
问题 I'm doing my first steps with RMI, and I have a simple question. I have a .jar file which has the implementation of several methods from a library. I want to call this methods in the .jar file using RMI. What I'm trying is to create a kind of a wrapper to do it. So, I'm working on something like this: Interface class : This interface has the methods to be implemented by the remote object. Implementation class : This class, has the implementation of the interface methods, each implementation

How to pass object in arguments in RMI method?

由 故事扮演 提交于 2020-01-21 05:24:28
问题 I am trying to add arguments in RMI method. When I add e.g. String everything works fine. But I am not sure if I can pass an object I created. I am new to RMI so my code is very simple: HelloIF public interface HelloIF extends Remote { String greeting(Context c) throws RemoteException; } Hello public class Hello extends UnicastRemoteObject implements HelloIF { public Hello() throws RemoteException { } public String greeting(Context c) throws RemoteException { addToContext(c); report(c);

RMI object not getting refreshed

由 一个人想着一个人 提交于 2020-01-15 20:58:47
问题 I am using RMI in my project, we have a RMI Server and RMI Client. Client is in webapplication, so we are storing server reference in common constants. I want to know, how expensive is it to do lookup for server in registry everytime we need server instance. or is it better to do look up once and store it in some constant. If i store it in constant then problem begins if RMI server is restarted. because that constant variable holds old reference and it throws java.rmi.NoSuchObjectException:

rmi class can not found exception

由 做~自己de王妃 提交于 2020-01-15 04:16:45
问题 I wrote an simple project using java rmi and exported to an executable jar file. When I tries to run it, sometimes i got exceptions and sometimes it works. When I specify -Djava.rmi.server.codebase=file:serverClasses/, it seems it didn't create the jar file correctly. Here is the stacktrace: java.rmi.ServerException: RemoteException occurred in server thread; nested exception is: java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is: java.lang.ClassNotFoundException:

rmi class can not found exception

由 非 Y 不嫁゛ 提交于 2020-01-15 04:15:08
问题 I wrote an simple project using java rmi and exported to an executable jar file. When I tries to run it, sometimes i got exceptions and sometimes it works. When I specify -Djava.rmi.server.codebase=file:serverClasses/, it seems it didn't create the jar file correctly. Here is the stacktrace: java.rmi.ServerException: RemoteException occurred in server thread; nested exception is: java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is: java.lang.ClassNotFoundException:

rmi class can not found exception

由 蓝咒 提交于 2020-01-15 04:14:27
问题 I wrote an simple project using java rmi and exported to an executable jar file. When I tries to run it, sometimes i got exceptions and sometimes it works. When I specify -Djava.rmi.server.codebase=file:serverClasses/, it seems it didn't create the jar file correctly. Here is the stacktrace: java.rmi.ServerException: RemoteException occurred in server thread; nested exception is: java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is: java.lang.ClassNotFoundException:

Why/How am I getting the error: NoClassDefFoundError: org/springframework/aop/framework/ProxyFactory

由 落花浮王杯 提交于 2020-01-13 13:27:21
问题 Goal: Start up a server which supports remote access to method calls. The application doesn't fail till after all services are created. The jar is in the target/lib directory. Parent pom has the dependency: <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aop</artifactId> <version>${version.spring}</version> </dependency> Note: I am able to create a spring bean of type: org.springframework.aop.framework.ProxyFactory Stack Trace: 36438 [main] ERROR org.springframework.web

Load balancing requests to a Weblogic 10gR3 RMI server on Amazon EC2

由 ﹥＞﹥吖頭↗ 提交于 2020-01-13 13:10:27
问题 I am participating in the development of a distributed solution, based on RMI, and deployed on multiple Weblogic 10gR3 (10.3.0.0) nodes. One of the nodes hosts a RMI server, and other nodes access it through a foreign JNDI provider. While trying to improve our infrastructure by adding additional RMI servers, we faced some issues. Details of our infrastructure: -RMI server is running on a managed server, on port 7005. -RMI clients access it through a remote JNDI provider which points to

Load balancing requests to a Weblogic 10gR3 RMI server on Amazon EC2

由 只谈情不闲聊 提交于 2020-01-13 13:09:05
问题 I am participating in the development of a distributed solution, based on RMI, and deployed on multiple Weblogic 10gR3 (10.3.0.0) nodes. One of the nodes hosts a RMI server, and other nodes access it through a foreign JNDI provider. While trying to improve our infrastructure by adding additional RMI servers, we faced some issues. Details of our infrastructure: -RMI server is running on a managed server, on port 7005. -RMI clients access it through a remote JNDI provider which points to
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