通過webapp連接到weblogic服務器並拉動服務器屬性

Question

我正在開發一個java web應用程序，它將從weblogic服務器中提取一些信息（cpu使用情況，java堆大小等）並將其顯示在網頁上。現在服務器即時連接到本地，但我會在以後擴展。我的問題是IM連接似乎訪問服務器的配置端，我不能得到我想要的數據。我對java和weblogic很新。這裏是我的代碼（你會看到一些冗餘，我在測試不同的技術了。）

package Servlets; 

import java.io.IOException; 
import java.util.Hashtable; 

import javax.naming.InitialContext; 
import javax.naming.NameNotFoundException; 
import javax.naming.NamingException; 
import javax.servlet.ServletConfig; 
import javax.servlet.ServletException; 
import javax.servlet.http.HttpServlet; 
import javax.servlet.http.HttpServletRequest; 
import javax.servlet.http.HttpServletResponse; 

import javax.naming.Context; 
import weblogic.jndi.*; 
import weblogic.management.configuration.ServerMBean; 

/** 
* Servlet implementation class getStatus 
*/ 
public class getStatus extends HttpServlet { 
private static final long serialVersionUID = 1L; 
ServerMBean beanOne = null; 
String beanTwo = null; 
Context ctx = null; 
InitialContext ictx = null; 
/** 
* @see HttpServlet#HttpServlet() 
*/ 
public getStatus() { 
    super(); 
    // TODO Auto-generated constructor stub 
} 

/** 
* @see Servlet#init(ServletConfig) 
*/ 
@SuppressWarnings({ "unchecked", "rawtypes" }) 
public void init(ServletConfig config) throws ServletException { 


     Hashtable ht = new Hashtable(); 
     ht.put(Context.INITIAL_CONTEXT_FACTORY,"weblogic.jndi.WLInitialContextFactory"); 
     ht.put(Context.PROVIDER_URL,"t3://localhost:7001"); 
     ht.put(Context.SECURITY_PRINCIPAL, "weblogic"); 
     ht.put(Context.SECURITY_CREDENTIALS, "welcome1"); 

     try { 
     ctx = new InitialContext(ht); 
     try { 
       beanOne = (ServerMBean) ctx.lookup("ServerMBean"); 
       beanOne.getName(); 


      }catch (NameNotFoundException e) { 
       // binding does not exist 
       System.out.println("bean not found :("); 
      }catch (NamingException e) { 
       // a failure occurred 
       System.out.println("bean not found D:"); 
      } 
     // Use the context in your program 
     } 
     catch (NamingException e) { 
      System.out.println("no context :("); 
     // a failure occurred 
     } 
     finally { 
     try {(ctx).close();} 
     catch (Exception e) { 
      // a failure occurred 
      System.out.println("no context D:"); 
     } 
     } 
     weblogic.jndi.Environment environment = new weblogic.jndi.Environment(); 
     environment.setInitialContextFactory(weblogic.jndi.Environment.DEFAULT_INITIAL_CONTEXT_FACTORY); 
     environment.setProviderUrl("t3://localhost:7001"); 
     environment.setSecurityPrincipal("weblogic"); 
     environment.setSecurityCredentials("welcome1"); 

     try{ 
     ictx = (InitialContext) environment.getInitialContext(); 
     } 
     catch(Exception e){ 
      System.out.println("no initial context :("); 
     } 

     try { 
      beanTwo = (String) ictx.lookup("ejb.serviceBean"); 
     }catch (NameNotFoundException e) { 
      // binding does not exist 
      System.out.println("bean not found :("); 
     }catch (NamingException e) { 
      // a failure occurred 
      System.out.println("bean not found D:"); 
     } 
     try { 
      ctx.close(); 
     } catch (Exception e) { 
      //a failure occurred 
     } 
} 

/** 
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response) 
*/ 
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { 
    // TODO Auto-generated method stub 
} 

/** 
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response) 
*/ 
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { 
    // TODO Auto-generated method stub 
} 

} 

我需要一種方法來連接到WebLogic Server拔出某些屬性和設置變量等於它們的值，所以我可以稍後使用它們。並再次即時非常新，所以我可能會完全關閉。

Answer 1

你想要做什麼看起來像基本的JMX bean輪詢，你有沒有在線閱讀教程？如果你在你最喜歡的搜索引擎中搜索「JMX​​ tutorial」，那麼有很多，從official開始。