java 读取 Properties

摘要: java 读取properties 有很多种方式，下面我介绍的是 Commons Configuration 解析方式

首先下载相关包：

commons-beanutils-1.9.2.jar

commons-configuration2-2.0.jar

commons-lang3-3.4.jar

commons-logging-1.2.jar

Configurations configs = new Configurations();
try {
Configuration config = configs.properties(new File("database.properties"));

String dbHost = config.getString("database.host");
int dbPort = config.getInt("database.port");
String dbUser = config.getString("database.user");
String dbPassword = config.getString("database.password", "secret");  // provide a default
long dbTimeout = config.getLong("database.timeout");

System.out.println("dbHost:"+dbHost);
System.out.println("dbPort:"+dbPort);
System.out.println("dbUser:"+dbUser);
System.out.println("dbPassword:"+dbPassword);
System.out.println("dbTimeout:"+dbTimeout);
} catch (ConfigurationException e) {
e.printStackTrace();
}