Java 类型中的方法不适用于参数（Class<；Main>；）？

我要做的是打印一条自定义错误消息，该消息打印错误导致的类和函数。要获取类，我使用

getClass（）

。但是，当我尝试运行我的项目时，会收到以下错误消息：

Exception in thread "main" java.lang.Error: Unresolved compilation problems: 
    The method printException(Exception) in the type ExceptionPrinter is not applicable for the arguments (FileNotFoundException, Class<Main>, String, String)
    The method printException(Exception) in the type ExceptionPrinter is not applicable for the arguments (ParseException, Class<Main>, String, String)

    at Main.main(Main.java)

其中ExceptionPrinter.java

printException（）

如下所示：

public static void printException(Exception e, String message){
    System.err.println(message);
    printException(e);
}

这很有效

如果有人能帮我把类名传给ExceptionPrinter.java，那就太好了

密码

---

Main.java

public class Main {

    public static void main(String[] args) {
        
        try {
            ...

        } catch (FileNotFoundException e) {
            ExceptionPrinter.printException(e, Main.class, "main", "Input file not found");
        } catch (ParseException e) {
            ExceptionPrinter.printException(e, Main.class, "main", "Exception occurred during parsing");
        }
    }

}

public class ExceptionPrinter {

    public static void printException(Exception e){
        System.err.println("Error message: " + e.getMessage());
        e.printStackTrace();
    }
    
    public static void printException(Exception e, Class class, String function, String message){
        System.err.println(class + " " + function + "(): " + message);
        printException(e);
    }
    
}

public class Main {
    public static void main(String[] args) {
        try {
            int a=2/0;
        } catch (ArithmeticException e) {
            ExceptionPrinter.printException(e, Main.class, "main", "Input file not found");
        } catch (NullPointerException e) {
            ExceptionPrinter.printException(e, Main.class, "main", "Exception occurred during parsing");
        }
    }

}

例外打印机.java

public class Main {

    public static void main(String[] args) {
        
        try {
            ...

        } catch (FileNotFoundException e) {
            ExceptionPrinter.printException(e, Main.class, "main", "Input file not found");
        } catch (ParseException e) {
            ExceptionPrinter.printException(e, Main.class, "main", "Exception occurred during parsing");
        }
    }

}

public class ExceptionPrinter {

    public static void printException(Exception e){
        System.err.println("Error message: " + e.getMessage());
        e.printStackTrace();
    }
    
    public static void printException(Exception e, Class class, String function, String message){
        System.err.println(class + " " + function + "(): " + message);
        printException(e);
    }
    
}

public class Main {
    public static void main(String[] args) {
        try {
            int a=2/0;
        } catch (ArithmeticException e) {
            ExceptionPrinter.printException(e, Main.class, "main", "Input file not found");
        } catch (NullPointerException e) {
            ExceptionPrinter.printException(e, Main.class, "main", "Exception occurred during parsing");
        }
    }

}

---

似乎您的ExceptionPrinter不是您正在使用的最新编译版本，并且它的类可能只有

公共静态void printException（Exception e）

方法，而没有其他方法。首先编译这个。如果您使用编译所有依赖代码的构建工具，那么默认情况下您不会看到这一点

---

Exception

类型ExceptionPrinter中的方法printException（Exception）不适用于参数（FileNotFoundException，Class，String，String）

建议未找到其他重载方法

将重载方法签名更改为：

public static void printException(
    final Exception execption, 
    final Class clazz, 
    final String function, 
    final String message)

• class

  在Java中是保留字，不能用作参数名
• 添加了

  final

  ，因为这是一个很好的使用方法

---

Main.java

public class Main {

    public static void main(String[] args) {
        
        try {
            ...

        } catch (FileNotFoundException e) {
            ExceptionPrinter.printException(e, Main.class, "main", "Input file not found");
        } catch (ParseException e) {
            ExceptionPrinter.printException(e, Main.class, "main", "Exception occurred during parsing");
        }
    }

}

public class ExceptionPrinter {

    public static void printException(Exception e){
        System.err.println("Error message: " + e.getMessage());
        e.printStackTrace();
    }
    
    public static void printException(Exception e, Class class, String function, String message){
        System.err.println(class + " " + function + "(): " + message);
        printException(e);
    }
    
}

public class Main {
    public static void main(String[] args) {
        try {
            int a=2/0;
        } catch (ArithmeticException e) {
            ExceptionPrinter.printException(e, Main.class, "main", "Input file not found");
        } catch (NullPointerException e) {
            ExceptionPrinter.printException(e, Main.class, "main", "Exception occurred during parsing");
        }
    }

}

例外打印机.java

public class Main {

    public static void main(String[] args) {
        
        try {
            ...

        } catch (FileNotFoundException e) {
            ExceptionPrinter.printException(e, Main.class, "main", "Input file not found");
        } catch (ParseException e) {
            ExceptionPrinter.printException(e, Main.class, "main", "Exception occurred during parsing");
        }
    }

}

public class ExceptionPrinter {

    public static void printException(Exception e){
        System.err.println("Error message: " + e.getMessage());
        e.printStackTrace();
    }
    
    public static void printException(Exception e, Class class, String function, String message){
        System.err.println(class + " " + function + "(): " + message);
        printException(e);
    }
    
}

public class Main {
    public static void main(String[] args) {
        try {
            int a=2/0;
        } catch (ArithmeticException e) {
            ExceptionPrinter.printException(e, Main.class, "main", "Input file not found");
        } catch (NullPointerException e) {
            ExceptionPrinter.printException(e, Main.class, "main", "Exception occurred during parsing");
        }
    }

}

在java中，类是一个关键字，所以不能像变量一样声明， i、 e将等级更改为等级c或任何

---

您可以停止忽略

ExceptionPrinter

类中的编译器问题

class

不是有效的变量名。@Tom是的，我意识到这就是原因，谢谢！