我们常常会在程序中用到这样的配置文件
Listener = svrsampleSampleListenerImpl
ServerAddress =
ListeningPort =
ListenerTimeout =
StatelessService = true
LogLevel = ALL
LogPath = serverlog
在这里提供了一个处理这种配置文件的类的源代码
package orgkyleutil;
import javaio*;
import javautil*;
//加载配置文件并提供从配置文件中读取各种类型的值的方法
public class Profile
{
protected Properties applicationProps;
protected Stringm_configurationFilename = null;
private boolean m_debug = false;
public Profile( boolean debug)
{
this();
m_debug = debug;
}
public Profile()
{
this(SystemgetProperty(MainConfigFileServercfg));
}
public Profile(String configurationFilename)
{
thism_configurationFilename = configurationFilename;
loadCfg(configurationFilename);
}
public void loadConfig(String configurationFilename)
{
if( configurationFilename == null )
{
Systemexit();
}
try {
applicationProps = new Properties();
FileInputStream in = new FileInputStream(configurationFilename);
applicationPropsload(in);
inclose();
}
catch( IOException ie)
{
Systemexit();
}
}
public void loadConfig()
{
loadConfig( m_configurationFilename );
}
public void saveConfig()
{
try
{
FileOutputStream out = new FileOutputStream(m_configurationFilename);
BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(out _));
synchronized (applicationProps)
{
Iterator iterator = new TreeSet(applicationPropskeySet()erator();
while(iteratorhasNext())
{
String key = (String)iteratornext();
writerwrite(key + = + applicationPropsgetProperty(key));
writernewLine();
}
}
writerclose();
outclose();
}catch(IOException ie)
{
Systemoutprintln(ietoString());
}
}
public void showConfig()
{
applicationPropslist(Systemout);
}
public Properties getProperty()
{
return applicationProps;
}
String getString(String Section String key String Default)
{
return getString( key Default);
}
public String getString(String key String Default)
{
String rVal = applicationPropsgetProperty(key Default);
returnrVal == null ? rVal : rValtrim();
}
public String getString(String key)
{
String rVal = applicationPropsgetProperty(key);
returnrVal == null ? rVal : rValtrim();
}
public boolean getBoolean(String key boolean Default)
{
String rVal = getString(key);
//if (rVal == null) return Default;
if (trueequalsIgnoreCase(rVal)) return true;
if (falseequalsIgnoreCase(rVal)) return false;
return Default;
}
public int getInt(String key int Default)
{
try{
return getInt(key);
}catch(Exception e){
applicationPropssetProperty(key StringvalueOf(Default));
return Default;
}
}
protected int getInt(String key) throws NumberFormatException
{
String rVal = getString(key);
return IntegerparseInt(rVal);
}
public String getConfigurationFilename()
{
return m_configurationFilename;
}
private void loadCfg(String configurationFilename)
{
if( configurationFilename == null )
{
Systemoutprintln(Assigned a null configuration file Default setting used);
}
try
{
applicationProps = new Properties();
FileInputStream in = new FileInputStream(configurationFilename);
applicationPropsload(in);
inclose();
}
catch( IOException ioe)
{
Systemoutprintln(Loading configuration from file + configurationFilename + failed);
Systemoutprintln(Default setting will be used);
}
}
}
package orgkyleutil;
import *;
//调用父类加载配置文件和读取数据按照配置文件的中的key值读取其value
public class GenProfile extends Profile
{
public GenProfile()
{
super();
buildCachedCrypt();
}
public GenProfile( String cfgFileName )
{
super( cfgFileName );
buildCachedCrypt();
}
public String getListenerImpl()
{
return getString(Listener svrsampleSampleListenerImpl);
}
public InetAddress getServerAddress()
{
try
{
String svrAddr = getString(ServerAddressnull);
if ( svrAddr == null ) return null;
return InetAddressgetByName( svrAddr );
}
catch( UnknownHostException uhe)
{
(uhe);
}
return null;
}
public int getListenAt()
{
return getInt(ListeningPort );
}
public int getTimeout()
{
return getInt(ListenerTimeout );
}
public booleanstatelessService()
{
return getBoolean(StatelessService true );
}
public String getLogLevel()
{
return getString(LogLevelCONFIG);
}
public String getLogPath()
{
return getString(LogPathserverlog);
}
}
使用方法
String cfgFile =servercfg;
GenProfile m_env = new GenProfile( cfgFile );
这样在程序中就可以使用例如m_env getServerAddress()等方法取得配置文件的相应内容了
