weblogic EJB客户端使用NativeIO

来源：互联网发布：小译软件编辑：程序博客网时间：2024/05/19 18:41

import javassist.ClassPool;
import javassist.CtClass;
import javassist.CtMethod;

public class SocketMuxerDefeat {

ClassPool pool = ClassPool.getDefault();

pool.insertClassPath("D:\\servers\\bea1032\\wlserver_10.3\\server\\lib\\weblogic.jar");

CtClass cc = pool.get("weblogic.socket.SocketMuxer");

CtMethod m = cc.getDeclaredMethod("makeTheMuxer", param);

   /*
           m.insertBefore("String sn=System.getProperty(\"weblogic.MuxerClass\");if(sn!=null){" +
           " if(sn.equalsIgnoreCase(\"weblogic.socket.PosixSocketMuxer\")){"+
               " System.out.print(\"weblogic.socket.PosixSocketMuxer\");return new weblogic.socket.PosixSocketMuxer();" +
           " }else if(sn.equalsIgnoreCase(\"weblogic.socket.NIOSocketMuxer\")){ "+
           "   System.out.print(\"weblogic.socket.NIOSocketMuxer\"); return new weblogic.socket.NIOSocketMuxer(); "+
           " }else if(sn.equalsIgnoreCase(\"weblogic.socket.DevPollSocketMuxer\")){ "+
           "   System.out.print(\"weblogic.socket.DevPollSocketMuxer\"); return new weblogic.socket.DevPollSocketMuxer(); "+
           " }else if(sn.equalsIgnoreCase(\"weblogic.socket.NTSocketMuxer\")){ "+
           "   return new weblogic.socket.NTSocketMuxer();}}");
           */
           m.insertBefore("return new weblogic.socket.PosixSocketMuxer();");
           // 保存到文件里
           CtMethod m2 = cc.getDeclaredMethod("getNativeMuxerClassName", param);
           // 插入新的代码
           m2.insertBefore("return \"weblogic.socket.PosixSocketMuxer\";");

           //CtMethod m3 = cc.getDeclaredMethod("initSockCreateTimeoutProp", param);
           // 插入新的代码
           //m3.insertBefore("return Integer.getInteger(System.getProperty(\"weblogic.client.socket.ConnectTimeout\"), 0).intValue();");

cc.writeFile("D:\\");

}
}

将生成的class文件替换weblogic.jar中的对应的文件,将libmuxer.so设置到LD_LIBRARY_PATH