[fix] 通用模块

重写金额大小写转换工具类：解决之前带角和分出现的多余值：零零角；解决例如.06和.60这种带小数的数值区分不了的问题
修改采购订单导出供应商合同后端接口，使用新的金额工具类

ruoyi-admin/src/main/java/com/ruoyi/purchase/service/impl/PurchaseOrderServiceImpl.java

@@ -1116,7 +1116,7 @@ public class PurchaseOrderServiceImpl implements IPurchaseOrderService
                     .map(item -> item.getMaterialRealRmbSum())
                     .reduce(BigDecimal.ZERO, BigDecimal::add);
             //转换成中文金额 //汉字大写合计金额
-            String ChineseCharacterAmount = MoneyUtils.toChineseCapitalized(totalAmount);
+            String ChineseCharacterAmount = MoneyUtils.amountConversion(totalAmount.toString());
             AtomicInteger index = new AtomicInteger(1);
             for (PurchaseOrderChild item : purchaseOrderChildList) {
                 Map<String, Object> detailMap = new HashMap<>();

ruoyi-common/src/main/java/com/ruoyi/common/utils/MoneyUtils.java

@@ -1,61 +1,97 @@
 package com.ruoyi.common.utils;
 
 import java.math.BigDecimal;
+import java.text.DecimalFormat;
 
+
+/**
+*   金额大小写转换
+* @author 刘晓旭
+* */
 public class MoneyUtils {
-    private static final String[] CHINESE_DIGITS = {"零", "壹", "贰", "叁", "肆", "伍", "陆", "柒", "捌", "玖"};
-    private static final String[] UNITS = {"", "拾", "佰", "仟", "万", "亿"};
 
-    public static String toChineseCapitalized(BigDecimal amount) {
-        if (amount == null || amount.compareTo(BigDecimal.ZERO) == 0) {
-            return "零元整";
-        }
+    private static final String[] cnNums = { "零", "壹", "贰", "叁", "肆", "伍", "陆", "柒", "捌", "玖" }; // 汉字的数字
+    private static final String[] cnIntRadice = { "", "拾", "佰", "仟" }; // 基本单位
+    private static final String[] cnIntUnits = { "", "万", "亿", "兆" }; // 对应整数部分扩展单位
+    private static final String[] cnDecUnits = { "角", "分"}; // 对应小数部分单位
+    private static final String cnInteger = "整"; // 整数金额时后面跟的字符
+    private static final String cnIntLast = "元"; // 整型完以后的单位
 
-        StringBuilder result = new StringBuilder();
-        boolean isNegative = amount.signum() == -1;
-        amount = amount.abs();
+    /**
+     * 金额大小写转换，将数字转换为汉字
+     * @param money 支持最大16位整数2位小数
+     * @return
+     */
+    public static String amountConversion(String money){
+        //如果传入为空，则返回null
+        if(StringUtils.isBlank(money)){
+            return "null";
+        }
+        String result = "";
+        //整数部分
+        String integer="";
+        //小数部分
+        String point="";
+        if(money.matches("^[0-9]{0,16}|[0-9]{0,16}+([.]{0,1}[0-9]{0,2})$")){
+            BigDecimal bigDecimal = new BigDecimal(money);
+            //对金额进行格式化，统一小数点后面保留两位。 此举能去除整数部分多余的0，以及小数部分统一保留两位 如：00456.1-->456.10
+            money = new DecimalFormat("##0.00").format(bigDecimal);
+            //整数部分
+            integer = money.split("\\.").length==1?money:money.split("\\.")[0];
+            //小数部分
+            point = money.split("\\.").length==1?"00":money.split("\\.")[1];
 
-        // 将金额转换为整数部分和小数部分
-        long integerPart = amount.longValue();
-        BigDecimal decimalPart = amount.remainder(BigDecimal.ONE).setScale(2, BigDecimal.ROUND_HALF_UP);
 
-        // 处理整数部分
-        int unitIndex = 0;
-        while (integerPart > 0) {
-            int digit = (int) (integerPart % 10);
-            if (digit != 0 || result.length() > 0) { // 避免多个"零"
-                result.insert(0, UNITS[unitIndex]);
+            if("0".equals(integer)){
+                result = "零"+cnIntLast;
+            }else{
+                int zeroCount = 0;
+                char[] array = integer.toCharArray();
+                String n="";
+                int p=0,q=0,m=0;
+                for (int i = 0; i < integer.length(); i++) {
+                    n = Character.toString(array[i]);
+                    p = integer.length() - i - 1;
+                    q = p / 4;
+                    m = p % 4;
+                    if (n.equals("0")) {
+                        zeroCount++;
+                    } else {
+                        if (zeroCount > 0) {
+                            result += cnNums[0];
                         }
-            result.insert(0, CHINESE_DIGITS[digit]);
-            integerPart /= 10;
-            unitIndex++;
-            if (unitIndex == 4) {
-                unitIndex = 0;
-                result.insert(0, "万");
+                        zeroCount = 0; // 归零
+                        result += cnNums[Integer.parseInt(n)] + cnIntRadice[m];
                     }
+                    if (m == 0 && zeroCount < 4) {
+                        result += cnIntUnits[q];
+                    }
+                }
+                result += cnIntLast;
             }
 
-        // 添加单位“元”
-        result.append("元");
-
-        // 处理小数部分
-        if (decimalPart.compareTo(BigDecimal.ZERO) > 0) {
-            result.append("零").append(CHINESE_DIGITS[decimalPart.intValue()]);
-            result.append("角");
-            BigDecimal cents = decimalPart.remainder(BigDecimal.ONE).multiply(BigDecimal.TEN);
-            if (cents.compareTo(BigDecimal.ZERO) > 0) {
-                result.append("零").append(CHINESE_DIGITS[cents.intValue()]);
-                result.append("分");
+            //组装小数部分
+            if ("00".equals(point)) {
+                result += cnInteger;
+            }else{
+                String n="";
+                char[] array = point.toCharArray();
+                for (int i = 0; i < point.length(); i++) {
+                    n = Character.toString(array[i]);
+                    if (!n.equals("0")) {
+                        result += cnNums[Integer.parseInt(n)] + cnDecUnits[i];
+                    }
                 }
-        } else {
-            result.append("整");
             }
 
-        if (isNegative) {
-            result.insert(0, "负");
+
+        }else{
+            return "请检查金额（整数位不能超过16位,小数不能超过2位）";
         }
 
-        return result.toString();
+        return result;
     }
 
 }
+
+