java - 如何处理类中每个方法的异常

Question

我有一个类，我需要为每个方法添加try catch，但它看起来多余，所以我需要一个好的方法来修复它，什么样的设计模式可以解决这个问题？

public class Test {
    public void a() {
        try {
            do something;
        } catch (Exception e) {
            logger.error("error happened");
        }
    }

    public void b() {
        try {
            do something;
        } catch (Exception e) {
            logger.error("error happened");
        }
    }
}

Answer 1

如果你做的事情与 try catch 需要的值相同，那么你可以这样说

public class Test {
    public void a() {
        //do other stuffs that don't require try catch and different from b
        c(); //pass some values if you need too
    }

    public void b() {
        //do other stuffs that don't require try catch and different from a
        c(); //pass some values if you need too
    }

    public void c() { //catch values if you pass something from a and b
        try {
            do something;
        } catch (Exception e) {
            logger.error("error happened");
        }
    }//put return if you like.
}

但是如果您对每个方法有不同的做某事并 try catch 值，那么您确实必须这样做。