java-如何在每个方法上检查方法

Question

public class Test
{
    private static boolean enable = true;

    public static boolean isEnable()
    {
        return enable;
    }

    public static String getName(int id)
    {
        if(isEnable())
            return "test";
        else
            return null;
    }

    public static ArrayList<String> getVars(int id, String str)
    {
        if(isEnable())
        {
            ArrayList<String> list = new ArrayList<String>();
            list.add("test1");
            list.add("test2");
            list.add("test3");
            return list;
        }

        return new ArrayList<String>();
    }

    //and more method contains enable check
}

how to check enable in single method and skip from all method

Answer 1

Unless you're using some funky aspect oriented library such as AspectJ there's no way to automatically inject code before/after each method in a class.

You need to do it "manually" as you have shown in your example code.