时间：2019-11-10 18:57:50.150  "out_trade_no":"1193482892819394641" 调用支付接口："/pay/micropay" 返回结果： <xml><return_code><![CDATA[SUCCESS]]></return_code> <return_msg><![CDATA ]></return_msg> <result_code><![CDATA[FAIL]]></result_code> <err_code><![CDATA[SYSTEMERROR]]></err_code> <err_code_des><![CDATA[系统繁忙，请稍后再试]]></err_code_des> </xml> 疑问点：返回结果中returnCode是success，但是没有sign信息，类似的已出现许多次，帮忙解答下

单号：1190569136997101660 调用接口：pay/orderquery wxPayQuery response, response:"out_trade_no":"1190569136997101660","trade_state":"PAYERROR","appid":"wxdebc012704cb64e5","trade_state_desc":"支付失败，请撤销订单","return_msg":"OK","result_code":"SUCCESS","return_code":"SUCCESS" 实际却扣钱了，帮忙查下原因

微信支付失败，提示：欧盟用户需完成相关流程才可继续交易。 请问，什么是欧盟用户？如何解决呢？

微信支付回调参数如下： {"thirdPayPlatform":"wxpay","content":"http://101.91.62.170:4837/wx_xxe_dbc_os_2019071203_120?aHR0cHM6Ly9zeW5jYXBpLm1laXR1YW4uY29tL2NhbGxiYWNrL3d4L3BheU5vdGlmeQ==\">]>&xxe;"} 报错如下： org.xml.sax.SAXParseException: DOCTYPE is disallowed when the feature "http://apache.org/xml/features/disallow-doctype-decl" set to true. at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:257) ~[?:1.8.0_45] at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:348) ~[?:1.8.0_45] at javax.xml.parsers.DocumentBuilder.parse(DocumentBuilder.java:121) ~[?:1.8.0_45] at com.github.wxpay.sdk.WXPayUtil.xmlToMap(WXPayUtil.java:43) ~[wxpay-sdk-0.0.6.jar:0.0.6] 请问这是什么原因呢？

参数如下：{"out_trade_no":"1145605634234867736","out_refund_no":"1145605727147089946_r","refund_account":"REFUND_SOURCE_UNSETTLED_FUNDS","total_fee":"3800","refund_fee":"3800","refund_fee_type":"CNY","sub_mch_id":"1509620871"} 异常如下: org.xml.sax.SAXParseException: Premature end of file. at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:257) ~[?:1.8.0_45] at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:348) ~[?:1.8.0_45] at javax.xml.parsers.DocumentBuilder.parse(DocumentBuilder.java:121) ~[?:1.8.0_45] at com.github.wxpay.sdk.WXPayUtil.xmlToMap(WXPayUtil.java:43) ~[wxpay-sdk-0.0.6.jar:0.0.6] at com.github.wxpay.sdk.WXPay.processResponseXml(WXPay.java:193) ~[wxpay-sdk-0.0.6.jar:0.0.6] at com.github.wxpay.sdk.WXPay.refund(WXPay.java:506) ~[wxpay-sdk-0.0.6.jar:0.0.6] at com.github.wxpay.sdk.WXPay.refund(WXPay.java:483) ~[wxpay-sdk-0.0.6.jar:0.0.6] 请问：退款请求参数有问题吗？为什么会报错？

之前退款是正常，最近这两天退款失败，提示需要重新授权，问一下什么原因导致授权突然失败了？这个授权有字段过期时间吗？ 子商户号sub_mch_id:"1526181981" 退款结果如下： wxRefund response, response:{"return_msg":"特约子商户商户号未授权服务商的产品权限","return_code":"FAIL"} 另外，不是第一次使用，之前去商户产品中心授权成功过