java读取配置文件

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java读取配置文件:

import java.util.HashMap;import java.util.Map;import java.util.Properties;/** * 读取配置文件 * @author yangx */public class Constants {   private static String param1="";   private static String param2="123"; // 这里也可初始化一些参数,以免配置文件中未配置而不能获取值   private static String param3="";static {Properties ps = new Properties();try {java.io.InputStream is = Constants.class.getResourceAsStream("Constants.properties");ps.load(is);param1 = ps.getProperty("param1");param2 = ps.getProperty("param2");param3 = ps.getProperty("param3");} catch (Exception e) {System.out.println("读取属性文件出错:" + e.getCause());e.getMessage();e.printStackTrace();}}public static String getParam1() {return param1;}public static void setParam1(String param1) {this.param1 = param1;}public static String getParam2(){return param2;}public static void setParam2(String param2) {this.param2 = param2;}public static String getParam3(){return param3;}public static void setParam3(String param3) {this.param3 = param3;}}

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