自定义异常类

/**
 * 自定义异常类
 */
public class ServiceExpection extends RuntimeException{
    private Integer code;
    private String message;

    public ServiceExpection() {
    }

    public ServiceExpection(Integer code, String message) {
        this.code = code;
        this.message = message;
    }

    public Integer getCode() {
        return code;
    }

    public void setCode(Integer code) {
        this.code = code;
    }

    @Override
    public String getMessage() {
        return message;
    }

    public void setMessage(String message) {
        this.message = message;
    }
}

使用

try {
            throw new ServiceExpection(106,"发生了自定义错误");
        }catch (ServiceExpection expection){
            System.out.println("捕获了异常:"+expection.getMessage());
        }