添加一个bean和dao类，添加了每月还款并存储信息，保证数据库的及时更新，包括等额本金的提前还款

demo/src/test/java/com/example/demo/Dao/managerMapper.java

@@ -21,4 +21,5 @@ public interface managerMapper {
 
 //    @Delete("delete from manager where managerNum=#{managerNum}")
 //    public void deleteManager(String managerNum);
+
 }

demo/src/test/java/com/example/demo/Dao/paymentMapper.java

@@ -13,4 +13,5 @@ public interface paymentMapper {
 
     @Update("update repayment set repAmount = {#repAmount} ,repSum = {#repSum} where checkNum = {#checkNum}")
     public void updateRepayment(Repayment repayment);
+
 }

demo/src/test/java/com/example/demo/Dao/productMapper.java

@@ -27,6 +27,7 @@ public interface productMapper {
             "productDescription=#{productDescription},pictureAddress=#{pictureAddress}")
     public void updateProduct(Product products);
 
+
     @Delete("delete from product where productNum=#{productNum}")
     public void deleteProduct(int productNum);
 }

demo/src/test/java/com/example/demo/Dao/transMapper.java

@@ -26,4 +26,5 @@ public interface transMapper {
 
     @Delete("delete from audit where transactionNum=#{transactionNum}")
     public void deleteTransaction(long transactionNum);
+
 }

demo/src/test/java/com/example/demo/Dao/usageDateMapper.java

@@ -27,4 +27,5 @@ public interface usageDateMapper {
 
     @Delete("delete from usagedate where checkNum=#{checkNum}")
     public void deleteUsageDate(long checkNum);
+
 }

demo/src/test/java/com/example/demo/bean/Audit.java

@@ -24,5 +24,6 @@ public class Audit {
     private  int year;
     private int equation;
 
+
     public Audit(){};
 }

demo/src/test/java/com/example/demo/bean/Bank.java

@@ -14,5 +14,6 @@ public class Bank {
     private String bankName;
     private String contact;//联系方式
 
+
     public Bank(){};
 }

demo/src/test/java/com/example/demo/bean/Manager.java

@@ -20,6 +20,7 @@ public class Manager {
     private String managerRight;
     private String telephoneNum;
 
+
     public Manager(){};
 
     public long getManagerNum() {

demo/src/test/java/com/example/demo/bean/Product.java

@@ -80,3 +80,4 @@ public class Product {
         this.productNum = productNum;
     }
 }
+

demo/src/test/java/com/example/demo/bean/ProductHistroy.java

@@ -52,6 +52,7 @@ public class ProductHistroy {
         this.alterTime = alterTime;
     }
 
+
     public String getDeleteTime() {
         return deleteTime;
     }

demo/src/test/java/com/example/demo/bean/Repayment.java

@@ -12,4 +12,5 @@ public class Repayment {
     private long checkNum;
     private double repAmount;
     private double repSum;
+
 }

demo/src/test/java/com/example/demo/bean/Transaction.java

@@ -28,5 +28,6 @@ public class Transaction {
         this.payer = payer;
         this.payee = payee;
         this.transactionAmount=transactionNum;
+
     }
 }

demo/src/test/java/com/example/demo/bean/UsageDate.java

@@ -20,4 +20,5 @@ public class UsageDate {
 
     public UsageDate(){};
     private int equation;
+
 }

demo/src/test/java/com/example/demo/bean/User.java

@@ -25,5 +25,6 @@ public class User {
     private String isIdentify;
     private String registerTime;
 
+
     public User(){};
 }

demo/src/test/java/com/example/demo/bean/UserBankIdentify.java

@@ -10,4 +10,5 @@ public class UserBankIdentify {
     private String userName;
     private String bankAccount;
     private short bankAccountIdentify;
+
 }

demo/src/test/java/com/example/demo/circulator/service/EPAIR_CirService.java

@@ -36,6 +36,7 @@ public class EPAIR_CirService extends CirService{
             e.printStackTrace();
         }finally {
 
+
         }
         return -1;
     }

demo/src/test/java/com/example/demo/circulator/service/EPR_CirService.java

@@ -37,6 +37,7 @@ public class EPR_CirService extends CirService{
             e.printStackTrace();
         }finally {
 
+
         }
         return -1;
     }

demo/src/test/java/com/example/demo/circulator/service/PayCirService.java

@@ -34,6 +34,7 @@ public class PayCirService {
             e.printStackTrace();
         }finally {
 
+
         }
         return 0;
     }

demo/src/test/java/com/example/demo/circulator/service/controller/NextCirController.java

@@ -34,6 +34,7 @@ public class NextCirController {
             request.setAttribute("next",next_principal_and_intrate);
         }else{
             return "/计算失败";
+
         }
 
         return "/next";

demo/src/test/java/com/example/demo/circulator/service/controller/PayCirController.java

@@ -15,6 +15,7 @@ public class PayCirController {
             return "/还款成功";
         }else{
             return"/还款失败";
+
         }
 
     }

demo/src/test/java/com/example/demo/circulator/service/controller/SumCirController.java

@@ -39,6 +39,7 @@ public class SumCirController {
             return "/计算失败";
         }
 
+
         return "/circulator";
     }
 }