J2ME

Development Platform:

Java

RMSope.java：Code Content

							package phoneLeter;
import java.util.Vector;
import javax.microedition.rms.RecordEnumeration;
import javax.microedition.rms.RecordStore;
public class RMSope {
	
	private String storeName;
	private RecordStore rs;
	
	//得到记录集的名称
	public RMSope(String storeName)
	{
		this.storeName=storeName;
	}
	//打开记录集
	public void openRecordStore()
	{
		try
		{
			rs=RecordStore.openRecordStore(storeName,true);
		}
		catch(Exception ex)
		{
			ex.printStackTrace();
		}
	}
	//增加记录集
	public void addPhone(String name,String phone)
	{
		String info=name+":"+phone;
		byte[] b=info.getBytes();
		try
		{
			rs.addRecord(b,0,b.length);
		}
		catch(Exception e)
		{
			e.printStackTrace();
		}
	}
	//删除记录集
	public void deletePhone(String str)
	{
		int lastId=0;
		try
		{
			lastId=rs.getNextRecordID();
		}
		catch(Exception e)
		{
			e.printStackTrace();
		}
		for(int i=1;i<lastId;i++)
		{
			try
			{
				byte[] b=rs.getRecord(i);
				String recordStr=new String(b);
				if(recordStr.equals(str))
				{
					rs.deleteRecord(i);
				}
			}
			catch(Exception e)
			{
				e.printStackTrace();
			}
		}
	}
	//获取所有记录集
	public Vector getAllPhone()
	{
		Vector v=new Vector();
		try
		{
			RecordEnumeration re=rs.enumerateRecords(null, null, false);
			while(re.hasNextElement())
			{
				v.addElement(new String(re.nextRecord()));
			}
		}
		catch(Exception e)
		{
			e.printStackTrace();
		}
		return v;
		
	}
	//关闭记录集
	public void closeRecordStore()
	{
		try
		{
			rs.closeRecordStore();
		}
		catch(Exception e)
		{
			e.printStackTrace();
		}
		
	}
}

						