支付处理 (未完成)

server/like-common/src/main/java/com/mdd/common/plugin/wechat/WxPayDriver.java

@@ -24,11 +24,17 @@ public class WxPayDriver {
 
     private static WxPayService wxPayService;
 
+    /**
+     * 注入支付配置依赖
+     */
     @Resource
     public void setDevPayConfigMapper(DevPayConfigMapper devPayConfigMapper) {
         WxPayDriver.devPayConfigMapper = devPayConfigMapper;
     }
 
+    /**
+     * 注入微信支付依赖
+     */
     @Resource
     public void setWxPayService(WxPayService wxPayService) {
         WxPayDriver.wxPayService = wxPayService;

server/like-common/src/main/java/com/mdd/common/util/AmountUtil.java

@@ -0,0 +1,61 @@
+package com.mdd.common.util;
+
+import com.baomidou.mybatisplus.core.toolkit.Assert;
+
+import java.math.BigDecimal;
+
+/**
+ * 金额处理工具
+ */
+public class AmountUtil {
+
+    private AmountUtil() {}
+
+    /**
+     * 将单位为元的金额转换为单位为分
+     *
+     * @param yuan 单位为元的字符型值
+     * @return int
+     */
+    public static int yuan2Fen(String yuan) {
+        int value;
+
+        try {
+            BigDecimal var1 = new BigDecimal(yuan);
+            BigDecimal var2 = new BigDecimal(100);
+            BigDecimal var3 = var1.multiply(var2);
+            value = Integer.parseInt(var3.stripTrailingZeros().toPlainString());
+        } catch (Exception e) {
+            throw new IllegalArgumentException(String.format("非法金额[%s]", yuan));
+        }
+
+        Assert.isTrue(value >= 0, String.format("非法金额[%s]", yuan));
+        return value;
+    }
+
+    /**
+     * 将单位为分的金额转换为单位为元
+     *
+     * @param fen 单位为分的字符型值
+     * @return String
+     */
+    public static String fen2Yuan(int fen) {
+        BigDecimal var1 = new BigDecimal(fen);
+        BigDecimal var2 = new BigDecimal(100);
+        BigDecimal var3 = var1.divide(var2, 3);
+        return var3.stripTrailingZeros().toPlainString();
+    }
+
+    /**
+     * 将单位为分的金额转换为单位为元
+     *
+     * @param fen 单位为分的字符型值
+     * @return BigDecimal
+     */
+    public static BigDecimal fen2YuanDecimal(int fen) {
+        BigDecimal var1 = new BigDecimal(fen);
+        BigDecimal var2 = new BigDecimal(100);
+        return var1.divide(var2, 3);
+    }
+
+}