Merge branch 'master' of http://114.55.67.98:8070/songxy/AI_Engineering

ais_knowledge/knowledge/src/main/java/com/zjugis/ai/knowledge/service/KnowledgeFileServiceImpl.java

@@ -16,9 +16,6 @@ import com.zjugis.ai.knowledge.retrofit.docs.vo.DocsRespVO;
 import com.zjugis.ai.knowledge.util.files.FileTypeUtils;
 import com.zjugis.ai.knowledge.util.object.BeanUtils;
 import lombok.SneakyThrows;
-import okhttp3.MediaType;
-import okhttp3.MultipartBody;
-import okhttp3.RequestBody;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Service;
 import org.springframework.web.multipart.MultipartFile;