fix：发票bug

src/main/java/com/sunxung/factoring/entity/invoicemanage/PurchaseInvoiceInfo.java

@@ -30,7 +30,7 @@ public class PurchaseInvoiceInfo extends BaseEntity {
      **/
     @NotNull(message = "数量")
     @TableField(value = "invoice_num")
-    private Long nvoiceNum;
+    private BigDecimal nvoiceNum;
     /**
      * 金额
      */
@@ -72,11 +72,11 @@ public class PurchaseInvoiceInfo extends BaseEntity {
         this.nvoiceNumber = nvoiceNumber;
     }
 
-    public Long getNvoiceNum() {
+    public BigDecimal getNvoiceNum() {
         return nvoiceNum;
     }
 
-    public void setNvoiceNum(Long nvoiceNum) {
+    public void setNvoiceNum(BigDecimal nvoiceNum) {
         this.nvoiceNum = nvoiceNum;
     }