1. 读properties文件
Properties props = new Properties(); try { InputStream in = new FileInputStream("dataBase.properties"); props.load(in); port = props.getProperty("port"); ip = props.getProperty("ip"); baseName = props.getProperty("baseName"); userName = props.getProperty("userName"); userPwd = props.getProperty("userPwd"); conn = connectDataBase(); } catch (Exception e) { logger.error(e.getMessage()); e.printStackTrace(); }
2. 写properties文件
import java.io.FileInputStream; import java.io.FileOutputStream; import java.util.Properties; public class PropertyEditor { public static void main(String[] args) throws Exception { Properties prop = new Properties();// 属性集合对象 FileInputStream fis = new FileInputStream("prop.properties");// 属性文件输入流 prop.load(fis);// 将属性文件流装载到Properties对象中 fis.close();// 关闭流 // 获取属性值,sitename已在文件中定义 System.out.println("获取属性值:sitename=" + prop.getProperty("sitename")); // 获取属性值,country未在文件中定义,将在此程序中返回一个默认值,但并不修改属性文件 System.out.println("获取属性值:country=" + prop.getProperty("country", "中国")); // 修改sitename的属性值 prop.setProperty("sitename", "Boxcode"); // 添加一个新的属性studio prop.setProperty("studio", "Boxcode Studio"); // 文件输出流 FileOutputStream fos = new FileOutputStream("prop.properties"); // 将Properties集合保存到流中 prop.store(fos, "Copyright (c) Boxcode Studio"); fos.close();// 关闭流 } }