读写配置文件

import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintStream;
import java.util.Enumeration;
import java.util.Properties;

public class PropertiesTest {

/**
* @param args
* @throws IOException
* @throws FileNotFoundException
*/
public static void main(String[] args) throws FileNotFoundException, IOException {
Properties prop = new Properties();
/* 元素的存取
prop.setProperty("name", "xwh");
prop.setProperty("age", "32");

Enumeration<String> e = (Enumeration<String>) prop.propertyNames();
while(e.hasMoreElements()) {
String key = e.nextElement();
String value = prop.getProperty(key);
System.out.println(key + "=" + value);
}*/

/*读取配置文件
prop.load(new FileInputStream("src/a.properties"));

String username = prop.getProperty("username");
String password = prop.getProperty("password");

System.out.println("这哥们的用户名是:" + username);
System.out.println("这哥们的密码是:" + password);
*/

/*写入配置文件
BufferedReader br =
new BufferedReader(new InputStreamReader(System.in));
System.out.println("请输入您的用户名：");
String username = br.readLine();
System.out.println("请输入密码:");
String password = br.readLine();

prop.setProperty("username", username);
prop.setProperty("password", password);

prop.list(new PrintStream("src/a.properties"));
*/
}

}