【新增】 protection 模块新增 signature 实现 API 签名

yudao-framework/yudao-spring-boot-starter-web/src/main/java/cn/iocoder/yudao/framework/web/core/filter/CacheRequestBodyWrapper.java

@@ -23,6 +23,10 @@ public class CacheRequestBodyWrapper extends HttpServletRequestWrapper {
      */
     private final byte[] body;
 
+    public byte[] getBody() {
+        return body;
+    }
+
     public CacheRequestBodyWrapper(HttpServletRequest request) {
         super(request);
         body = ServletUtils.getBodyBytes(request);