微信支付回调接口返回的结果有一部分是正确的Json格式，{"appid":"wx4e86556f58608aa1","attach":"pay","bank_type":"OTHERS","cash_fee":"29900","fee_type":"CNY","is_subscribe":"N","mch_id":"1633816732","nonce_str":"5lPoLop1n8nz5wHg","openid":"o7vBj6ChZxDedTVBgn_OLPcZH9Wg","out_trade_no":"20241023120511880110","result_code":"SUCCESS","return_code":"SUCCESS","time_end":"20241023120529","total_fee":"29900","trade_type":"JSAPI","transaction_id":"4200002336202410236227909211"}

有些返回的不是Json格式

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