java简单读取properties文件

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app文件

/** * */package app;import java.io.File;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.IOException;import java.util.Properties;import app.util.Constants;/** * @author tj * */public class PropReader {/** * @param args */public static void main(String[] args) {File propFile = new File("temp.properties");Properties prop = new Properties();try {prop.load(new FileInputStream(propFile));} catch (FileNotFoundException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}System.out.println(prop.getProperty(Constants.no1));System.out.println(prop.getProperty(Constants.no2));System.out.println(prop.getProperty(Constants.no3));}}

常量

/** * */package app.util;/** * @author tj * */public interface Constants {String no1 = "no1";String no2 = "no2";String no3 = "no3";}

properties文件

no1=hello

no2=world

no3=read