/* * To change this template, choose Tools | Templates * and open the template in the editor. */package cn.sda.enterprise;import java.util.Enumeration;import java.util.Hashtable;import javax.microedition.rms.RecordEnumeration;import javax.microedition.rms.RecordStore;/** *用來記錄配置信息，通過RecordStore來處理 * @author Administrator */public class SDAIniFile {    private RecordStore rs;    private Hashtable IniConfigList;    public SDAIniFile() {        internalSDAIniFile();    }    private void internalSDAIniFile() {        IniConfigList = new Hashtable();        IniConfigList.clear();    }    //RS打開關閉操作    public static RecordStore OpenRS(String RsName) {        return internalOpenRS(RsName);    }    private static RecordStore internalOpenRS(String RsName) {        RecordStore rs = null;        if (RsName.length() > 32) {            return null;        }        try {            rs = RecordStore.openRecordStore(RsName, true);            return rs;        } catch (Exception e) {            return null;        }    }    public boolean DeleteRS(String RsName) {        return internalDeleteRS(RsName);    }    private boolean internalDeleteRS(String RsName) {        if (RsName.length() > 32) {            return false;        }        try {            RecordStore.deleteRecordStore(RsName);            return true;        } catch (Exception e) {            return false;        }    }    //打開文件    public void CreateIniFile(String IniFileName) {        internalCreateIniFile(IniFileName);    }    private void internalCreateIniFile(String IniFileName) {        //打開        rs = OpenRS(IniFileName);        ReadFromStream();    }    //關閉文件    public void CloseIniFile() {        internalCloseIniFile();    }    private void internalCloseIniFile() {        try {            rs.closeRecordStore();        } catch (Exception e) {        }    }    //文件配置信息讀入Hashtable    private void ReadFromStream() {        try {            RecordEnumeration rem = rs.enumerateRecords(null, null, false);            for (int i = 0; i < rem.numRecords(); i++) {                byte[] AllByte;                AllByte = rem.nextRecord();                String AllStr = new String(AllByte);                int ipos = AllStr.indexOf("=");                if (ipos > -1) {                    IniConfigList.put(AllStr.substring(0, ipos), AllStr.substring(ipos + 1));                }            }        } catch (Exception e) {            System.out.println(e.getMessage());        }    }    //寫入配置項目    public void WriteItem(String ItemName, String ItemValue) {        internalWriteItem(ItemName, ItemValue);    }    private void internalWriteItem(String ItemName, String ItemValue) {        if (IniConfigList.containsKey(ItemName)) {            //存在就修改            IniConfigList.remove(ItemName);            IniConfigList.put(ItemName, ItemValue);        } else {            IniConfigList.put(ItemName, ItemValue);        }    }    //刪除配置    public void DeleteItem(String ItemName) {        internalDeleteItem(ItemName);    }    private void internalDeleteItem(String ItemName) {        while (IniConfigList.containsKey(ItemName)) {            IniConfigList.remove(ItemName);        }    }    //讀取配置項目    public String ReadItem(String ItemName) {        return internalReadItem(ItemName);    }    private String internalReadItem(String ItemName) {        if (IniConfigList.containsKey(ItemName)) {            return (String) IniConfigList.get(ItemName);        } else {            return null;        }    }    //寫入文件    public void Flush() {        internalFlush();    }    private void internalFlush() {        //先刪除所有的，再保存        int Recno = 0;        RecordEnumeration rem = null;        try {            rem = rs.enumerateRecords(null, null, false);            Recno = rem.numRecords();        } catch (Exception e) {        }        if (rem != null) {            for (int i = 0;                    i < Recno;                    i++) {                try {                    int ID = rem.nextRecordId();                    rs.deleteRecord(ID);                } catch (Exception e) {                }            }        }        //重新保存        String Key;        String Value;        Enumeration wenum = IniConfigList.keys();        while (wenum.hasMoreElements()) {            Key = (String) wenum.nextElement();            Value = (String) IniConfigList.get(Key);            String AllStr = Key + "=" + Value;            byte[] itembyte = AllStr.getBytes();            try {                rs.addRecord(itembyte, 0, itembyte.length);            } catch (Exception e) {            }        }    }}