的Java輸入傳遞從終端

Question

的功能有什麼辦法，我可以在終端編寫命令狀

config.group1.val1

並以某種方式解析此命令並在Java函數中發送「group1」和「val1」作爲兩個參數？

我不能通過args []數組在主函數中發送它。

Answer 1

這是可以做到的未來：

Scanner scanner = new Scanner(System.in); 
// get the next line from the terminal 
String line = scanner.nextLine(); 
// split it using . as separator 
String[] params = line.split("\\."); 
// Default value 
String value = "unknown"; 
// Assuming that the name of your map is "map" 
Map<String, String> subMap = map.get(params[1]); 
if (subMap != null && subMap.containsKey(params[2])) { 
    value = subMap.get(params[2]); 
} 
// print the value found 
System.out.println(value);