🎨 #2980【微信支付】增加部分回调相关的单元测试代码

weixin-java-pay/src/main/java/com/github/binarywang/wxpay/util/RequestUtils.java

@@ -0,0 +1,49 @@
+package com.github.binarywang.wxpay.util;
+
+import javax.servlet.http.HttpServletRequest;
+import java.io.BufferedReader;
+import java.io.IOException;
+
+/**
+ * <pre>
+ * 请求工具类.
+ * Created by Wang_Wong on 2023-04-14.
+ * </pre>
+ *
+ * @author <a href="https://github.com/0katekate0/">Wang_Wong</a>
+ */
+public class RequestUtils {
+
+  /**
+   * 获取请求头数据，微信V3版本回调使用
+   *
+   * @param request
+   * @return 字符串
+   */
+  public static String readData(HttpServletRequest request) {
+    BufferedReader br = null;
+    StringBuilder result = new StringBuilder();
+    try {
+      br = request.getReader();
+      for (String line; (line = br.readLine()) != null; ) {
+        if (result.length() > 0) {
+          result.append("\n");
+        }
+        result.append(line);
+      }
+    } catch (IOException e) {
+      e.printStackTrace();
+    } finally {
+      if (br != null) {
+        try {
+          br.close();
+        } catch (IOException e) {
+          e.printStackTrace();
+        }
+      }
+    }
+
+    return result.toString();
+  }
+
+}