Java读取yml配置文件到map中
public class App {
//存储配置属性的Map集合
public static Map<String, Object> conf = new HashMap<String, Object>();
public static void main(String[] args) throws IOException {
//从classpath下获取配置文件路径
URL url = App.class.getResource("/");
Yaml yaml = new Yaml();
//通过yaml对象将配置文件的输入流转换成map原始map对象
Map map = yaml.loadAs(new FileInputStream(url.getPath()), Map.class);
//递归map对象将配置加载到conf对象中
loadRecursion(map, "");
System.out.println(conf.get("mysql.database1.table1"));
}
//递归解析map对象
public static void loadRecursion(Map<String, Object> map, String key){
map.forEach((k,v) -> {
if(isParent(v)){
Map<String, Object> nextValue = (Map<String, Object>) v;
loadRecursion(nextValue, (("".equals(key) ? "" : key + ".")+ k));
}else{
conf.put(key+"."+k,v);
}
});
}
//判断是否还有子节点
public static boolean isParent(Object o){
if (!(o instanceof String || o instanceof Character || o instanceof Byte)) {
try {
Number n = (Number) o;
} catch (Exception e) {
return true;
}
}
return false;
}
}