Whats the best way to get the server name in a servlet deployed to a cluster?

Question

          Hi,
          I have a servlet in a web application that is deployed to a cluster, just
          wondering what is the best way to get the name of the node that the server is
          running on at run time??
          Thanks
          

Answer 1

          Please try to modify the following code and test for your purpose: (check Weblogic
          class document for detail)
          import javax.naming.*;
          import weblogic.jndi.*;
          import weblogic.management.*;
          import weblogic.management.configuration.*;
          import weblogic.management.runtime.*;
          MBeanHome home = null;
               try{
                    //The Environment class represents the properties used to create
                         //an initial Context. DEfault constructor constructs an Environment
                         //with default properties, that is, with a WebLogic initial context.
                         //If unset, the properties for principal and credentials default to
                         //guest/guest, and the provider URL defaults to "t3://localhost:7001".
                         Environment env = new Environment();
                         //Sets the Context.PROVIDER_URL property value to the value of
                         //the argument url.
                         if(admin_url!=null){
                              env.setProviderUrl(admin_url);
                              //Sets the Context.SECURITY_PRINCIPAL property to the value of
                              //the argument principal.
                              env.setSecurityPrincipal(username);
                              //Sets the value of the Context.SECURITY_CREDENTIAL property to
                              //the value of the argument cedentials
                              env.setSecurityCredentials(password);
                              //Returns an initial context based on the properties in an Environment.
                              ctx = env.getInitialContext();
                         }else ctx = new InitialContext();
                         home = (MBeanHome) ctx.lookup(MBeanHome.ADMIN_JNDI_NAME);
                         ctx.close(); //free resource
                         // or if looking up a specific MBeanHome
                         //home = (MBeanHome) ctx.lookup(MBeanHome.JNDI_NAME + "." + serverName);
                         DomainMBean dmb = home.getActiveDomain(); //Get Active Domain
                         ServerMBean[] sbeans = dmb.getServers(); //Get all servers
                         if(sbeans!=null){
                              for(int s1=0; s1<sbeans.length; s1++){
                                   String privip = sbeans[s1].getListenAddress();
                              sbeans[s1].getName();
                         sbeans[s1].getListenPort();
                                             WebServerMBean wmb = sbeans[s1].getWebServer();
               }catch(Exception ex){
          "Gao Jun" <[email protected]> wrote:
          >Is there any sample code? Thanks
          >
          >Best Regards,
          >Jun Gao
          >
          >"Xiang Rao" <[email protected]> wrote in message
          >news:[email protected]...
          >>
          >> Sure. You can use the Weblogic management APIs to query ServerBean.
          >>
          >>
          >> "Me" <[email protected]> wrote:
          >> >
          >> >Thanks for your reply, i was hoping to find a better way for example
          >> >a class in
          >> >weblogic API.
          >> >
          >> >Thanks
          >> >
          >> >"Xiang Rao" <[email protected]> wrote:
          >> >>
          >> >>Physical: InetAddress.getLocalHost().getHostName()
          >> >>Weblogic: System.getProperty("weblogic.Name");
          >> >>
          >> >>
          >> >>"Me" <[email protected]> wrote:
          >> >>>
          >> >>>Hi,
          >> >>> I have a servlet in a web application that is deployed to a
          >cluster,
          >> >>>just
          >> >>>wondering what is the best way to get the name of the node that
          >the
          >> >>server
          >> >>>is
          >> >>>running on at run time??
          >> >>>
          >> >>>Thanks
          >> >>
          >> >
          >>
          >
          >