refactor(utils): 更新异常类导入路径并添加JSON依赖

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yesterday 75ffb97146a0a15d76ae4603ccf328eb9716d798

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package com.xcong.excoin.modules.blackchain.service; 
 
import com.xcong.excoin.common.response.Result; 
 
public interface BlockSerive { 
 
    Result findBlockAddress(String symbol,String lable); 
 
}