java获取properties配置文件事例

java获取properties配置文件例子

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.Properties;



public class Test {

	public static void main(String[] arg){
	    Properties pro=getProperties();
			String yourParameter = pro.getProperty("yourParameter");
			System.out.println(yourParameter);
	}
	//获取属性文件
	private static Properties getProperties(){
		String tomcatPath = Test.class.getClassLoader().getResource("").toString();
		System.out.println(tomcatPath);
		if(tomcatPath!=null&&tomcatPath.length()>0){
			int s = tomcatPath.lastIndexOf("classes");
			tomcatPath = tomcatPath.substring(0,s );
			int pos=tomcatPath.indexOf("file:");    
		    if(pos>-1) tomcatPath=tomcatPath.substring(pos+5);    
		}
		String sourceFileName=tomcatPath+"config/systemConfig.properties";//获取配置文件的地址
		try{    
			sourceFileName=java.net.URLDecoder.decode(sourceFileName,"utf-8");    
		    }catch(Exception e){throw new RuntimeException(e);} 
		FileInputStream in;
		Properties prop = new Properties();
		try {
			in = new FileInputStream(sourceFileName);
			prop.load(in);
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		}catch (IOException e) {
			e.printStackTrace();
		}
		return prop;
	}
}