sampleaction.java

weblogic应用全实例

/**
 * SampleAction.java
 *
 * PrivilegedAction 实现类
 *
 */
//声明本类所在的包
package examples.security.jaas;

//本类引入的包和类
import java.security.PrivilegedAction;
import javax.naming.Context;
import javax.naming.InitialContext; 
import java.util.Hashtable;

public class SampleAction implements PrivilegedAction
{
  public Object run()
  {
    Object obj = null;
    Context ctx = null;
    String url = null;

    try
    {
      // 获取WLS 服务器 URL 
      url = System.getProperty("weblogic.security.jaas.ServerURL");
    }
    catch(NullPointerException npe)
    {
      System.err.println("错误: ServerURL Not Specified");
      return null;
    }
    catch(IllegalArgumentException iae)
    {
      System.err.println("错误: ServerURL Not Specified");
      return null;
    }
    catch(SecurityException se)
    {
      System.err.println("错误: Security Exception on accessing ServerURL Specification");
      return null;
    }

    // 设置环境变量
    Hashtable env = new Hashtable();
    env.put(Context.INITIAL_CONTEXT_FACTORY, "weblogic.jndi.WLInitialContextFactory");
    env.put(Context.PROVIDER_URL, url);

    try
    {
      // 创建初始化上下文
      ctx = new InitialContext(env);

      // 查找目标RMI类
      examples.security.acl.Frobable f = (examples.security.acl.Frobable) ctx.lookup("frobtarget");

      // 执行远程方法
      f.frob();
      System.out.println("Frobbed successfully");
    }
    catch(Throwable t)
    {
      t.printStackTrace();
      System.out.println("Failed to frob");
    }
    finally
    {
      try
      {
        // 关闭上下文
        ctx.close();
      }
      catch(Exception e)
      {
        // 处理任何失败
      }
    }
    return obj;
  }
}