java自定义异常配合枚举

一时失言乱红尘 2022-06-13 13:10 253阅读 0赞

自定义异常：

public class SimpleException extends RuntimeException {
        private String msg ;
        private StatusCode statusCode ;
    
        public SimpleException(StatusCode statusCode, String msg) {
            super(msg) ;
            this.msg = msg ;
            this.statusCode = statusCode ;
        }
    
        public SimpleException(StatusCode statusCode, String msg, Throwable e) {
            super(msg, e) ;
            this.msg = msg ;
            this.statusCode = statusCode ;
        }
    
        public StatusCode getStatusCode() {
            return statusCode;
        }
    
        public void setStatusCode(StatusCode statusCode) {
            this.statusCode = statusCode;
        }
    
        @Override
        public String toString() {
            return "登陆异常："+this.statusCode+" "+this.msg ;
        }
    }

枚举：

public enum  StatusCode {
        UNKNOWN_ERR("未知错误",0),
        USERNAME_OR_PASSWORD_ERR("用户名密码错误", 1),
        REANLNAME_OR_IDNUMBER_ERR("姓名身份证号错误", 2),
        SMS_CODE_ERR("验证码错误", 3),
        REDIS_ERR("Redis操作异常",4),
        GENERAL_ERR("一般异常",5),
        HTTP_POST_ERR("http post 请求异常",6),
        HTTP_GET_ERR("http get 请求异常",7);
        // 成员变量
        private String name;
        private Integer index;
        // 构造方法
        private StatusCode(String name, Integer index) {
            this.name = name;
            this.index = index;
        }
        // 普通方法
        public static String getName(Integer index) {
            for (StatusCode c : StatusCode.values()) {
                if (c.getIndex() == index) {
                    return c.name;
                }
            }
            return null;
        }
        // get set 方法
        public String getName() {
            return name;
        }
        public void setName(String name) {
            this.name = name;
        }
        public Integer getIndex() {
            return index;
        }
        public void setIndex(Integer index) {
            this.index = index;
        }
    
        @Override
        public String toString() {
            return this.index+":"+this.name;
        }
    }