生成pdf修改逻辑

distributed-print-business/src/main/java/com/qmth/distributed/print/business/util/CreatePdfUtil.java

@@ -22,7 +22,6 @@ import com.qmth.teachcloud.common.service.*;
 import com.qmth.teachcloud.common.util.ConvertUtil;
 import com.qmth.teachcloud.common.util.FileStoreUtil;
 import com.qmth.teachcloud.common.util.RedisUtil;
-import org.apache.commons.codec.digest.DigestUtils;
 import org.apache.commons.lang3.StringUtils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -30,10 +29,10 @@ import org.springframework.context.annotation.Lazy;
 import org.springframework.stereotype.Component;
 import org.springframework.transaction.annotation.Transactional;
 import org.springframework.util.CollectionUtils;
+import org.springframework.util.FileCopyUtils;
 
 import javax.annotation.Resource;
 import java.io.File;
-import java.io.FileInputStream;
 import java.io.IOException;
 import java.util.*;
 import java.util.stream.Collectors;