#584 修复企业付款到银行卡接口签名失败的问题

weixin-java-pay/src/main/java/com/github/binarywang/wxpay/bean/entpay/EntPayBankRequest.java

@@ -114,7 +114,11 @@ public class EntPayBankRequest extends BaseWxPayRequest {
 
   @Override
   protected void checkConstraints() throws WxPayException {
+  }
 
+  @Override
+  protected boolean ignoreSignType() {
+    return true;
   }
 
   @Override