字典表中的数据定义为枚举

import com.baomidou.mybatisplus.annotation.EnumValue;
import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonValue;

import java.util.Objects;

/**
 * 路线技术等级枚举
 */
public enum JSDJEnum {

   GS("10", "高速"),
   YJ("11", "一级"),
   EJ("22", "二级"),
   SJ("23", "三级"),
   SI("24", "四级"),
   WJ("30", "等外");

   @EnumValue
   private final String code;
   @EnumValue
   private final String desc;

   @JsonValue
   public String getCode() {
      return this.code;
   }

   @JsonValue
   public String getDesc() {
      return this.desc;
   }

   JSDJEnum(String code, String desc) {
      this.code = code;
      this.desc = desc;
   }

   @JsonCreator
   public static JSDJEnum getByCode(String code) {
      for (JSDJEnum value : JSDJEnum.values()) {
         if (Objects.equals(code, value.getCode())) {
            return value;
         }
      }
      return null;
   }
}

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