diff --git a/BlockFinanceCentral/src/main/java/com/sztzjy/block_finance/mappers/StuSupplyOnchainMapper.java b/BlockFinanceCentral/src/main/java/com/sztzjy/block_finance/mappers/StuSupplyOnchainMapper.java
index e40b76d..c5b3d64 100644
--- a/BlockFinanceCentral/src/main/java/com/sztzjy/block_finance/mappers/StuSupplyOnchainMapper.java
+++ b/BlockFinanceCentral/src/main/java/com/sztzjy/block_finance/mappers/StuSupplyOnchainMapper.java
@@ -31,5 +31,5 @@ public interface StuSupplyOnchainMapper {
     int updateByPrimaryKey(StuSupplyOnchain record);
 
 
-    StuSupplyOnchain selectByTime(String userId);
+    StuSupplyOnchain selectByTimeSupply(String userId);
 }
\ No newline at end of file
diff --git a/BlockFinanceCentral/src/main/java/com/sztzjy/block_finance/service/impl/StuDigitalDebtVoucherServiceImpl.java b/BlockFinanceCentral/src/main/java/com/sztzjy/block_finance/service/impl/StuDigitalDebtVoucherServiceImpl.java
index 8a786d0..888aa35 100644
--- a/BlockFinanceCentral/src/main/java/com/sztzjy/block_finance/service/impl/StuDigitalDebtVoucherServiceImpl.java
+++ b/BlockFinanceCentral/src/main/java/com/sztzjy/block_finance/service/impl/StuDigitalDebtVoucherServiceImpl.java
@@ -215,7 +215,7 @@ public class StuDigitalDebtVoucherServiceImpl implements StuDigitalDebtVoucherSe
 
 
                     //追加在上一个区块链后面
-                    StuSupplyOnchain stuBlockOnChain1 = stuBlockOnChainMapper.selectByTime(dto.getUserId());
+                    StuSupplyOnchain stuBlockOnChain1 = stuBlockOnChainMapper.selectByTimeSupply(dto.getUserId());
                     StuSupplyOnchain onChain = stuBlockOnChainMapper.selectByPrimaryKey(stuBlockOnChain1.getId());
 
                     Integer sequence = onChain.getSequence();
diff --git a/BlockFinanceCentral/src/main/java/com/sztzjy/block_finance/service/impl/StuEncryptOnChainServiceImpl.java b/BlockFinanceCentral/src/main/java/com/sztzjy/block_finance/service/impl/StuEncryptOnChainServiceImpl.java
index 56f53b9..8841530 100644
--- a/BlockFinanceCentral/src/main/java/com/sztzjy/block_finance/service/impl/StuEncryptOnChainServiceImpl.java
+++ b/BlockFinanceCentral/src/main/java/com/sztzjy/block_finance/service/impl/StuEncryptOnChainServiceImpl.java
@@ -138,7 +138,7 @@ public class StuEncryptOnChainServiceImpl implements StuEncryptOnChainService {
 
 
                         //追加在上一个区块链后面
-                        StuSupplyOnchain stuBlockOnChain1 = stuBlockOnChainMapper.selectByTime(dto.getUserId());
+                        StuSupplyOnchain stuBlockOnChain1 = stuBlockOnChainMapper.selectByTimeSupply(dto.getUserId());
 
                         StuSupplyOnchain onChain = stuBlockOnChainMapper.selectByPrimaryKey(stuBlockOnChain1.getId());
 
@@ -157,7 +157,7 @@ public class StuEncryptOnChainServiceImpl implements StuEncryptOnChainService {
                     } else {
 
                         //追加在上一个区块链后面
-                        StuSupplyOnchain stuBlockOnChain1 = stuBlockOnChainMapper.selectByTime(dto.getUserId());
+                        StuSupplyOnchain stuBlockOnChain1 = stuBlockOnChainMapper.selectByTimeSupply(dto.getUserId());
 
                         StuSupplyOnchain onChain = stuBlockOnChainMapper.selectByPrimaryKey(stuBlockOnChain1.getId());
 
diff --git a/BlockFinanceCentral/src/main/java/com/sztzjy/block_finance/service/impl/StuSignFactorContractServiceImpl.java b/BlockFinanceCentral/src/main/java/com/sztzjy/block_finance/service/impl/StuSignFactorContractServiceImpl.java
index 593642c..1e6dea6 100644
--- a/BlockFinanceCentral/src/main/java/com/sztzjy/block_finance/service/impl/StuSignFactorContractServiceImpl.java
+++ b/BlockFinanceCentral/src/main/java/com/sztzjy/block_finance/service/impl/StuSignFactorContractServiceImpl.java
@@ -201,7 +201,7 @@ public class StuSignFactorContractServiceImpl implements StuSignFactorContractSe
             if (!blockOnChainList.isEmpty()){
 
                 //追加在上一个区块链后面
-                StuSupplyOnchain stuBlockOnChain1 = stuBlockOnChainMapper.selectByTime(dto.getUserId());
+                StuSupplyOnchain stuBlockOnChain1 = stuBlockOnChainMapper.selectByTimeSupply(dto.getUserId());
                 StuSupplyOnchain onChain = stuBlockOnChainMapper.selectByPrimaryKey(stuBlockOnChain1.getId());
 
                 Integer sequence = onChain.getSequence();
diff --git a/BlockFinanceCentral/src/main/resources/mappers/StuSupplyOnchainMapper.xml b/BlockFinanceCentral/src/main/resources/mappers/StuSupplyOnchainMapper.xml
index 4bb73a9..04deed6 100644
--- a/BlockFinanceCentral/src/main/resources/mappers/StuSupplyOnchainMapper.xml
+++ b/BlockFinanceCentral/src/main/resources/mappers/StuSupplyOnchainMapper.xml
@@ -306,7 +306,7 @@
 
 
 
-  <select id="selectByTime" resultType="com.sztzjy.block_finance.entity.StuSupplyOnchain">
+  <select id="selectByTimeSupply" resultType="com.sztzjy.block_finance.entity.StuSupplyOnchain">
 
     select   id, chain_name, block_hash, chain_time, pre_block_hash, buy_data, tax_number, sequence,
              user_id, plan_number, block_index from stu_block_onchain order by chain_time desc limit 1;