增加永久文件接口

chenhj

2026-04-25 34320634733b77a773af6836a2e3082092068ec9

 src/main/java/com/ruoyi/measuringinstrumentledger/service/MeasuringInstrumentLedgerService.java

@@ -6,7 +6,7 @@
import com.ruoyi.measuringinstrumentledger.dto.MeasuringInstrumentLedgerDto;
import com.ruoyi.measuringinstrumentledger.pojo.MeasuringInstrumentLedger;

import javax.servlet.http.HttpServletResponse;
import jakarta.servlet.http.HttpServletResponse;
import java.io.IOException;

/**