/**
* 配置文件中,替换字符串
* @author Sailing
*
*/
public class PropertiesTest {
private static PropertiesTest instance;
public static PropertiesTest getInstance(){
if(instance==null){
instance = new PropertiesTest();
}
return instance;
}
private Properties properties = new Properties();
private PropertiesTest(){
try {
String fileName = "cfg/pro.properties";
this.properties.load(new FileReader(fileName));
} catch (IOException e) {
e.printStackTrace();
}
}
/**
* 获取配置文件
* @param key
* @return
* @author Sailing
*/
public String getProperties (String key) {
return this.properties.getProperty(key);
}
/**
* 替换字符串
* @param previousStr
* @param params
* @return
* @author Sailing
*/
public static String replace(String previousStr,String [] params){
String newStr = MessageFormat.format(previousStr, params);
return newStr;
}
public static void main(String[] args) {
//加载配置文件
PropertiesTest pro = PropertiesTest.getInstance();
String name = pro.getProperties("name");
String score = pro.getProperties("score");
String[] mathParam = {"math","8"};
String math = replace(score, mathParam);
String[] englishParam = {"english","3"};
String english = replace(score, englishParam);
System.out.println("Name:"+name+"\r\n"+math+"\r\n"+english);
}
}
