| va.util.*;
import java.rmi.*;
public interface VocHome extends javax.ejb.EJBHome
{
public Voc create() throws CreateException, RemoteException;
}
Remote接口：
package cacdsystem;
import javax.ejb.*;
import java.util.*;
import java.rmi.*;
public interface Voc extends javax.ejb.EJBObject
{
public Collection getVocTechnique() throws RemoteException;
}
bean类：
package cacdsystem;
import javax.ejb.*;
import java.util.*;
public class VocBean implements SessionBean
{
SessionContext sessionContext;
TechniquespecHome techniquespecHome;
public void ejbCreate() throws CreateException {}
public void ejbRemove() {}
public void ejbActivate() {}
public void ejbPassivate() {}
public void setSessionContext(SessionContext sessionContext)
{
this.sessionContext = sessionContext;
try
{
javax.naming.Context context = new javax.naming.InitialContext();
techniquespecHome = (TechniquespecHome)context.lookup("Techniquespec");
}
catch (Exception ex)
{
System.out.println("Techniquespecs调用出错！");
throw new EJBException(ex);
}
}
public java.util.Collection getVocTechnique()
{
/**@todo Complete this method*
//*** 获得全部技术需求项函数！*/
System.out.println("调用getVocTechnique()!");
java.util.Collection collection = null;
java.util.List results = new ArrayList();
try
{
collection= techniquespecHome.findByTypes();
if(collection.size() > 0)
{
System.out.println(collection.size());
Iterator iter = collection.iterator();
String tempStr = null;
Techniquespec techniqu = null;
while(iter.hasNext())
{
techniqu = (Techniquespec) iter.next();
tempStr = techniqu.getTechniqueitem();
tempStr = charASC.chinTOISO(tempStr);
results.add(tempStr);
}
}
}
catch (Exception ex)
{
ex.printStackTrace();
throw new EJBException(ex);
}
return results;
}
}
EJB技术之旅（二）(4)
时间:2010-12-10
说明：
（1）我们在Session Bean中添加了一个商务方法，getVocTechnique()，以获得techniqueitem中的全部内容。
（2）setSessionContext中，我们完成了EJB的一些初始化工作。（3) charASC.chinTOISO是用于中文转换的静态方法，代码如下：
package cacdsystem;
public class charASC
{
static private String results = null;
public charASC(){}
static public String chinTOISO(String temp)
{
if(temp == null)
{
results = "";
}
else
{
try
{
results = new String(temp.getBytes("ISO-8859-1"),"gb2312");
results = results.trim();
}
catch(Exception ee)
{
Sys
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