rmi

问题 As I understand, spring has a nice framework for RMI that looks like its still using the old school UnicastRemoteObject class. What if i wanted to use Activation instead, does spring support this? I havn't found any documents to support this? I am confused if this is actually implementable through spring?? Also just to mention, the rmid is another daemon needed. Does spring deal with this at all? Also from anyone elses experience, what would be the best way to use Activation and incorporate

问题 Hello I am new to Java RMI and I have question regarding Java RMI Server. Now I have a working RMI program with 1 server and 1 client. I am told to create a multiple server with 1 client. There will be 1 main server with load balancing and multiple sub server(I am not sure if this is the correct term for it) where the main server will divide task to be given to the sub server. I don't know how actually this work. Is it possible with Java RMI? if so, does Different server mean each server need

问题 I developed a Java client/server application, communicating via Spring RMI, the Client is symply a swing Jframe how containing at the top a command buttons(add, update, delete), in the middle a JTable, and at the bottom, a form. the server side contains simply a Dao layer by using iBatis witch communicates with an Apache Derby database. So the application works greatly, but two problems are found : 1) when the user A adds/updates/deletes a row from a JTable, the others can't see the changes

问题 This question already has an answer here : RMI connection refused on localhost (1 answer) Closed 4 years ago . I am trying to build a java chat program. I have 7 classes for server and client altogether. My errors are as follows when I run any class Exception in thread "main" java.rmi.ConnectException: Connection refused to host: 192.168.56.1; nested exception is: java.net.ConnectException: Connection refused: connect at sun.rmi.transport.tcp.TCPEndpoint.newSocket(Unknown Source) at sun.rmi

问题 I am trying to run the example of the RMI application given in the Oracle website http://docs.oracle.com/javase/tutorial/rmi/running.html. However, trying both Eclipse and in the command line, I can't run the server nor the client. In fact, when running in Eclipse I get this error: ComputeEngine exception: java.security.AccessControlException: access denied ("java.net.SocketPermission" "127.0.0.1:1099" "connect,resolve") I also have changed the VM Argument like this: For the ComputeEngine

问题 I am trying to run 3 RMI server on Single (96 Ram) Machine. From three different machine clients are calling, but for three clients I have given 3 different port numbers and binded object name are also different for all three client. For 1st 2 client I got the output and for thirst one I am not getting any output. Only "Null Pointer exception" I am getting on client side. On Server side I have given -Xms250m to -Xmx 20g on all 3 server. On client all have 8 GB ram I have given -Xmx6g. 回答1:

问题 Our web app acts as an integration layer which allows the users to run Matlab code (Matlab is a scientific programming language) which was compiled to Java, packaged up as jar files via browser (selected ones as in above image, except for remote_proxy-1.0.0.jar which is not, it is used for RMI). The problem is that, Matlab Java runtime, contained inside the javabuilder-1.0.0.jar file, has a process-wide blocking mechanism which means if the first user sends an HTTP request to execute the cdf

问题 I need to write a platform with a centralized server and a lot of remote clients to execute tasks. I'm currently using an RMI connection, being the centralized server who acts as client of the remote clients (RMI servers). It's working, but I'm afraid of have a lot of problems in a near future (is a good idea to use RMI?) so I'm thinking in move the code to SSLSockets and send serialized classes to do the same. My problem with this approach y how to control the list of active clients. I need

问题 I have the following situation: Using RMI, i noticed that under a specific situation, the RMI client did not have the class whose instance was sent via RMI. So, I sent the class in the shape of Byte [] and then loaded it with a class loader i defined. The code in the client side is something like: pp = plugins.getPanelClasses(); //RMI method panelClassLoader pcl = new panelClassLoader(); //simple class loader defined by me String name = pcl.defineClass(pp); Then, i ask in the client side by

问题 I have 2 projects. One works fine in ever department. I downloaded and modified it to better understand it. The 2nd one is a project in development phase. Now, both these projects have almost exactly the same RMI package, which works fine in the first project, but not in the 2nd. My test classes in each package are essentially identical as well. The main difference is what objects there are attempting to access, which are both interfaces in a database package. Now, the database package in the