读取Maven项目下resources目录下的配置文件(properties为例)

1 a.url=********************
2 b.url=----------------------------------

public class ReadJdProperties {
        
    public String getUrlValue(String urlName) {
        String url = null;
        Properties prop = new Properties();
        try {
            ClassLoader classLoader = ReadJdProperties.class.getClassLoader();  
            URL resource = classLoader.getResource("xxxxx.properties");  
            String path = resource.getPath();  
            System.out.println(path);  
            // 读取属性文件xxxxx.properties
            InputStream in = classLoader.getResourceAsStream("xxxxx.properties");  
            prop.load(in); /// 加载属性列表
            Iterator<String> it = prop.stringPropertyNames().iterator();
            while (it.hasNext()) {
                if (it.next().equals(urlName)) {
                    url = prop.getProperty(urlName);
                }
            }
            in.close();
        } catch (Exception e) {
            
        }
        return url;
    }
    public static void main(String[] args) {
        new ReadJdProperties().getUrlValue("a.url"); // 获取a.url的值
    }
}