将RealmBankInfoBean写成如下

   public class RealmBankInfoBean extends RealmObject implements Serializable {
      @PrimaryKey
      private String bankNum;
      private String yearEx;
      private String monthEx;

       public RealmBankInfoBean(String bankNum, String yearEx, String monthEx) {
          this.bankNum = bankNum;
          this.yearEx = yearEx;
          this.monthEx = monthEx;
      }
      ...
   }

注意我给RealmBankInfoBean 添加了构造方法，编译的错误如下

Paste_Image.png

去掉构造方法后可编译通过，原因未知！