rms.java

来自「在j2me中如何实现短信的发送和接受」· Java 代码 · 共 56 行

package main;
import javax.microedition.rms.*;

public class RMS {
	private static RecordStore rs = null;

	private static void openRMS() {
		try {
			rs = RecordStore.openRecordStore("db", true);

		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	public static void save(String str) {
		try {
			if (rs == null) {
				openRMS();
			}
			byte[] data = str.getBytes();
			try {
				byte[] rmsMobile = rs.getRecord(1);
				rs.setRecord(1, data, 0, data.length);
				System.out.println("set");
			} catch (Exception e) {
				System.out.println("add");
				rs.addRecord(data, 0, data.length);
			}
			rs.closeRecordStore();
			rs = null;
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	public static String load() {

		String str = "";
		try {
			if (rs == null) {
				openRMS();
			}
			byte[] data = rs.getRecord(1);
			str = new String(data);
			rs.closeRecordStore();
			rs = null;
		} catch (Exception e) {
			 e.printStackTrace();

		}
		return str;
	}

}