J2ME RMS数据库操作

RMS读取

public static byte[] read_Set(int ctr) {byte[] tb = null;RecordStore rs = null;try {rs = RecordStore.openRecordStore(rmsName, true);Log.logOut("read_Set:" + rs.getNumRecords());if (ctr == 0)tb = rs.getRecord(1);elsetb = rs.getRecord(2);} catch (Exception ex) {ex.printStackTrace();try {RecordStore.deleteRecordStore(rmsName);} catch (RecordStoreException ex2) {}} finally {try {rs.closeRecordStore();} catch (RecordStoreException ex1) {}rs = null;}return tb;} 

RMS保存

public static void save_Set(byte[] nbyte, int ctr) {RecordStore rs = null;try {rs = RecordStore.openRecordStore(rmsName, true);int leng = rs.getNumRecords();if (leng == 0)rs.addRecord(nbyte, 0, nbyte.length);else {if (ctr == 0)rs.setRecord(1, nbyte, 0, nbyte.length);else {if (leng == 1) {rs.addRecord(nbyte, 0, nbyte.length);} else {rs.setRecord(2, nbyte, 0, nbyte.length);}}}} catch (Exception ex) {ex.printStackTrace();try {RecordStore.deleteRecordStore(rmsName);} catch (RecordStoreException ex2) {}} finally {try {rs.closeRecordStore();} catch (RecordStoreException ex1) {}}}