emailconfig.java

基于WINCE5.2的ARM嵌入式手机软件的开发

/*
 * 描述了邮件服务器的配置信息
 */

package MobileEmail;
import javax.microedition.rms.*;
/**
 *
 * @author Administrator
 */
public class EMailConfig {
    private static EMailConfig configInstance;//配置对象实例
    private static final String CONFIG_RMS="Config";
    private String name;
    private String emailAddr;
    private String accounts;
    private String password;
    private String smtpServer;

    // private EmailConfig(){}

    //返回一个服务器配置数据实例对象，如果返回null 表示没有配置信息
    public static EMailConfig getInstance(){
        try{
            RecordStore rs=RecordStore.openRecordStore(CONFIG_RMS, false);
            configInstance=new EMailConfig();
            configInstance.name=new String(rs.getRecord(1));
            configInstance.emailAddr=new String(rs.getRecord(2));
            configInstance.accounts=new String(rs.getRecord(3));
            configInstance.password=new String(rs.getRecord(4));
            configInstance.smtpServer=new String(rs.getRecord(5));
            rs.closeRecordStore();
        }
        catch(RecordStoreException res){
            System.out.println(res);
            configInstance=null;
        }
        return configInstance;
    }

    //更新邮件服务器的配置数据
    public static void updateConfig(String name,String emailAddr,String accounts,String password,String smtpHost){

        try{
            byte[] nameBytes=name.getBytes();
            byte[] emailAddrBytes=emailAddr.getBytes();
            byte[] accountsBytes=accounts.getBytes();
            byte[] pswBytes=password.getBytes();
            byte[] smtpBytes=smtpHost.getBytes();

            //打开数据库
            RecordStore rs=RecordStore.openRecordStore(CONFIG_RMS, true);
            int numRecords=rs.getNumRecords();
            if(numRecords==0){
                rs.addRecord(nameBytes, 0, nameBytes.length);
                rs.addRecord(emailAddrBytes, 0, emailAddrBytes.length);
                rs.addRecord(accountsBytes, 0, accountsBytes.length);
                rs.addRecord(pswBytes, 0, pswBytes.length);
                rs.addRecord(smtpBytes, 0, smtpBytes.length);
            }
            else{//数据已经存在 更新记录
                rs.setRecord(1,nameBytes, 0, nameBytes.length);
                rs.setRecord(2,emailAddrBytes, 0, emailAddrBytes.length);
                rs.setRecord(3,accountsBytes, 0, accountsBytes.length);
                rs.setRecord(4,pswBytes, 0, pswBytes.length);
                rs.setRecord(5,smtpBytes, 0, smtpBytes.length);
            }
            rs.closeRecordStore();
        }
        catch(RecordStoreException rse){
            System.out.println(rse);
        }

        if(configInstance!=null){
            configInstance.name=name;
            configInstance.emailAddr=emailAddr;
            configInstance.accounts=accounts;
            configInstance.password=password;
            configInstance.smtpServer=smtpHost;
        }
    }

    public String getName(){
        return name;
    }

    public String getEmailAddr(){
        return emailAddr;
    }

    public String getAccounts(){
        return accounts;
    }

    public String getPassword(){
        return password;
    }

    public String getSMTPServer(){
        return smtpServer;
    }


}