治理配置文件

管理配置文件

建立管理读取配置文件类:

public class ConfigManager {    private static final Log log = LogFactory.getLog(ConfigManager.class);    private static Configuration config;    private static ConfigManager instance;    private ConfigManager() {        loadConfig();    }    public static ConfigManager getInstance() {        if (instance == null) {            synchronized (ConfigManager.class) {                instance = new ConfigManager();            }        }        return instance;    }    public void loadConfig() {        loadConfig("config.xml");    }    public void loadConfig(String configFileName) {        try {            ConfigurationFactory factory = new ConfigurationFactory(                    configFileName);            config = factory.getConfiguration();            log.info("Configuration loaded: " + configFileName);        } catch (Exception ex) {            log.error(ex.getMessage(), ex);            throw new RuntimeException("Configuration loading error: "                    + configFileName, ex);        }    }    public Configuration getConfig() {        return config;    }}

?读取配置文件类：

public class Config {    public static String getString(String key) {        return ConfigManager.getInstance().getConfig().getString(key);    }    public static String getString(String key, String def) {        return ConfigManager.getInstance().getConfig().getString(key, def);    }    public static int getInt(String key) {        return ConfigManager.getInstance().getConfig().getInt(key);    }    public static int getInt(String key, int def) {        return ConfigManager.getInstance().getConfig().getInt(key, def);    }    public static long getLong(String key) {        return ConfigManager.getInstance().getConfig().getLong(key);    }    public static long getLong(String key, long def) {        return ConfigManager.getInstance().getConfig().getLong(key, def);    }    public static float getFloat(String key) {        return ConfigManager.getInstance().getConfig().getFloat(key);    }    public static float getFloat(String key, float def) {        return ConfigManager.getInstance().getConfig().getFloat(key, def);    }    public static double getDouble(String key) {        return ConfigManager.getInstance().getConfig().getDouble(key);    }    public static double getDouble(String key, double def) {        return ConfigManager.getInstance().getConfig().getDouble(key, def);    }    public static boolean getBoolean(String key) {        return ConfigManager.getInstance().getConfig().getBoolean(key);    }    public static boolean getBoolean(String key, boolean def) {        return ConfigManager.getInstance().getConfig().getBoolean(key, def);    }    public static String[] getStringArray(String key) {        return ConfigManager.getInstance().getConfig().getStringArray(key);    }    @SuppressWarnings("unchecked")    public static List getList(String key) {        return ConfigManager.getInstance().getConfig().getList(key);    }    @SuppressWarnings("unchecked")    public static List getList(String key, List def) {        return ConfigManager.getInstance().getConfig().getList(key, def);    }    public static void setProperty(String key, Object value) {        ConfigManager.getInstance().getConfig().setProperty(key, value);    }}

?配置文件：

config.xml

<?xml version="1.0" encoding="UTF-8" ?><configuration><system /><properties fileName="config.properties" /></configuration>

?config.properties? 添加key 和value

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