Java backend-WeChat Pay-pay by card-sandbox failed to verify the signature. Please verify whether the sandbox signature key is correct (generated by calling getsignkey)

when making payment by credit card, formal environment can return (sensitive information has been modified):

Pay Result:{nonce_str=IcVsdgs22Fsz46s, appid=wx53c4sd87dcdc, sign=9B7AE9DD7sdfs126FC3CC095, err_code=USERPAYING, return_msg=OK, result_code=FAIL, err_code_des=, mch_id=1485757572, return_code=SUCCESS}

but the sandbox environment keeps reporting errors , and the returned result is as follows:

Pay Result:{return_msg=keygetsignkey, return_code=FAIL}

tell me about the process I did

determine whether it is a sandbox environment; if it is a formal environment, directly use the Key set on the merchant platform to generate sign required for the payment request. If it is a sandbox environment, first go to https://api.mch.weixin.qq.com/sandboxnew/pay/getsignkey to request sandbox_signkey , and use the sandbox_signkey instead of the Key set on the merchant platform to generate sign required for the request. The main code is as follows (the method call retrieveSandboxSignKey code is also posted at the end):

WXPayConfigImpl config = WXPayConfigImpl.getInstance();
Boolean useSandbox = Boolean.valueOf(WxPropertiesUtil.getProperty("use_sandbox"));
String key;
if (useSandbox) {
    String sandboxSignkey = config.retrieveSandboxSignKey(config, wxPay);
    if (StringUtils.isBlank(sandboxSignkey)) {
        return ResponseObject.createErrorWithMessage("sandbox_signkey");
    }
    key = sandboxSignkey;
} else {
    key = config.getKey();
}
String sign = WXPayUtil.generateSignature(reqData, key, SignType.MD5);
reqData.put("sign", sign);
//...
Map<String, String> result = wxPay.microPay(reqData);
log.info("Pay Result:" + result.toString());

the code to get the sandbox key is as follows

public String retrieveSandboxSignKey(WXPayConfig config, WXPay wxPay) {
    try {
        Map<String, String> params = new HashMap<String, String>();
        params.put("mch_id", config.getMchID());
        params.put("nonce_str", WXPayUtil.generateNonceStr());
        params.put("sign", WXPayUtil.generateSignature(params, config.getKey()));
        String strXML = wxPay.requestWithoutCert("https://api.mch.weixin.qq.com/sandboxnew/pay/getsignkey",
                params, config.getHttpConnectTimeoutMs(), config.getHttpReadTimeoutMs());
        if (StringUtils.isBlank(strXML)) {
            return null;
        }
        Map<String, String> result = WXPayUtil.xmlToMap(strXML);
        log.info("retrieveSandboxSignKey:" + result);
        if ("SUCCESS".equals(result.get("return_code"))) {
            return result.get("sandbox_signkey");
        }
        return null;
    } catch (Exception e) {
        log.error("sandbox_signkey", e);
        return null;
    }
}

I don"t know if there is anything wrong with this logic. The official document does not specify how to use this sandbox key. I am looking it up myself. Thank you very much for your help in taking a look at this problem.

"C:\Program Files\Java\jdk1.8.0_191\bin\java.exe" "-javaagent:F:\IntelliJ IDEA 2018.1.2\lib\idea_rt.jar=34212:F:\IntelliJ IDEA 2018.1.2\bin" -Dfile.encoding=UTF-8 -classpath "C:\Program Files\Java\jdk1.8.0_191\jre\lib\charsets.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\deploy.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\ext\access-bridge-64.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\ext\cldrdata.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\ext\dnsns.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\ext\jaccess.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\ext\jfxrt.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\ext\localedata.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\ext\nashorn.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\ext\sunec.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\ext\sunjce_provider.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\ext\sunmscapi.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\ext\sunpkcs11.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\ext\zipfs.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\javaws.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\jce.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\jfr.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\jfxswt.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\jsse.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\management-agent.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\plugin.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\resources.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\rt.jar;D:\spring-boot-weixinpay-demo\demo\target\classes;C:\Users\SeeClanUkyo\.m2\repository\org\springframework\boot\spring-boot-starter-web\2.1.1.RELEASE\spring-boot-starter-web-2.1.1.RELEASE.jar;C:\Users\SeeClanUkyo\.m2\repository\org\springframework\boot\spring-boot-starter\2.1.1.RELEASE\spring-boot-starter-2.1.1.RELEASE.jar;C:\Users\SeeClanUkyo\.m2\repository\org\springframework\boot\spring-boot\2.1.1.RELEASE\spring-boot-2.1.1.RELEASE.jar;C:\Users\SeeClanUkyo\.m2\repository\org\springframework\boot\spring-boot-autoconfigure\2.1.1.RELEASE\spring-boot-autoconfigure-2.1.1.RELEASE.jar;C:\Users\SeeClanUkyo\.m2\repository\org\springframework\boot\spring-boot-starter-logging\2.1.1.RELEASE\spring-boot-starter-logging-2.1.1.RELEASE.jar;C:\Users\SeeClanUkyo\.m2\repository\ch\qos\logback\logback-classic\1.2.3\logback-classic-1.2.3.jar;C:\Users\SeeClanUkyo\.m2\repository\ch\qos\logback\logback-core\1.2.3\logback-core-1.2.3.jar;C:\Users\SeeClanUkyo\.m2\repository\org\apache\logging\log4j\log4j-to-slf4j\2.11.1\log4j-to-slf4j-2.11.1.jar;C:\Users\SeeClanUkyo\.m2\repository\org\apache\logging\log4j\log4j-api\2.11.1\log4j-api-2.11.1.jar;C:\Users\SeeClanUkyo\.m2\repository\org\slf4j\jul-to-slf4j\1.7.25\jul-to-slf4j-1.7.25.jar;C:\Users\SeeClanUkyo\.m2\repository\javax\annotation\javax.annotation-api\1.3.2\javax.annotation-api-1.3.2.jar;C:\Users\SeeClanUkyo\.m2\repository\org\yaml\snakeyaml\1.23\snakeyaml-1.23.jar;C:\Users\SeeClanUkyo\.m2\repository\org\springframework\boot\spring-boot-starter-json\2.1.1.RELEASE\spring-boot-starter-json-2.1.1.RELEASE.jar;C:\Users\SeeClanUkyo\.m2\repository\com\fasterxml\jackson\core\jackson-databind\2.9.7\jackson-databind-2.9.7.jar;C:\Users\SeeClanUkyo\.m2\repository\com\fasterxml\jackson\core\jackson-annotations\2.9.0\jackson-annotations-2.9.0.jar;C:\Users\SeeClanUkyo\.m2\repository\com\fasterxml\jackson\core\jackson-core\2.9.7\jackson-core-2.9.7.jar;C:\Users\SeeClanUkyo\.m2\repository\com\fasterxml\jackson\datatype\jackson-datatype-jdk8\2.9.7\jackson-datatype-jdk8-2.9.7.jar;C:\Users\SeeClanUkyo\.m2\repository\com\fasterxml\jackson\datatype\jackson-datatype-jsr310\2.9.7\jackson-datatype-jsr310-2.9.7.jar;C:\Users\SeeClanUkyo\.m2\repository\com\fasterxml\jackson\module\jackson-module-parameter-names\2.9.7\jackson-module-parameter-names-2.9.7.jar;C:\Users\SeeClanUkyo\.m2\repository\org\springframework\boot\spring-boot-starter-tomcat\2.1.1.RELEASE\spring-boot-starter-tomcat-2.1.1.RELEASE.jar;C:\Users\SeeClanUkyo\.m2\repository\org\apache\tomcat\embed\tomcat-embed-core\9.0.13\tomcat-embed-core-9.0.13.jar;C:\Users\SeeClanUkyo\.m2\repository\org\apache\tomcat\embed\tomcat-embed-el\9.0.13\tomcat-embed-el-9.0.13.jar;C:\Users\SeeClanUkyo\.m2\repository\org\apache\tomcat\embed\tomcat-embed-websocket\9.0.13\tomcat-embed-websocket-9.0.13.jar;C:\Users\SeeClanUkyo\.m2\repository\org\hibernate\validator\hibernate-validator\6.0.13.Final\hibernate-validator-6.0.13.Final.jar;C:\Users\SeeClanUkyo\.m2\repository\javax\validation\validation-api\2.0.1.Final\validation-api-2.0.1.Final.jar;C:\Users\SeeClanUkyo\.m2\repository\org\jboss\logging\jboss-logging\3.3.2.Final\jboss-logging-3.3.2.Final.jar;C:\Users\SeeClanUkyo\.m2\repository\com\fasterxml\classmate\1.4.0\classmate-1.4.0.jar;C:\Users\SeeClanUkyo\.m2\repository\org\springframework\spring-web\5.1.3.RELEASE\spring-web-5.1.3.RELEASE.jar;C:\Users\SeeClanUkyo\.m2\repository\org\springframework\spring-beans\5.1.3.RELEASE\spring-beans-5.1.3.RELEASE.jar;C:\Users\SeeClanUkyo\.m2\repository\org\springframework\spring-webmvc\5.1.3.RELEASE\spring-webmvc-5.1.3.RELEASE.jar;C:\Users\SeeClanUkyo\.m2\repository\org\springframework\spring-aop\5.1.3.RELEASE\spring-aop-5.1.3.RELEASE.jar;C:\Users\SeeClanUkyo\.m2\repository\org\springframework\spring-context\5.1.3.RELEASE\spring-context-5.1.3.RELEASE.jar;C:\Users\SeeClanUkyo\.m2\repository\org\springframework\spring-expression\5.1.3.RELEASE\spring-expression-5.1.3.RELEASE.jar;C:\Users\SeeClanUkyo\.m2\repository\org\slf4j\slf4j-api\1.7.25\slf4j-api-1.7.25.jar;C:\Users\SeeClanUkyo\.m2\repository\org\springframework\spring-core\5.1.3.RELEASE\spring-core-5.1.3.RELEASE.jar;C:\Users\SeeClanUkyo\.m2\repository\org\springframework\spring-jcl\5.1.3.RELEASE\spring-jcl-5.1.3.RELEASE.jar;C:\Users\SeeClanUkyo\.m2\repository\org\apache\httpcomponents\httpclient\4.5.3\httpclient-4.5.3.jar;C:\Users\SeeClanUkyo\.m2\repository\org\apache\httpcomponents\httpcore\4.4.10\httpcore-4.4.10.jar;C:\Users\SeeClanUkyo\.m2\repository\commons-codec\commons-codec\1.11\commons-codec-1.11.jar;C:\Users\SeeClanUkyo\.m2\repository\commons-lang\commons-lang\2.6\commons-lang-2.6.jar" com.wechat.demo.main.TestWxPay 14:29:49.449 [main] DEBUG org.apache.http.client.protocol.RequestAddCookies - CookieSpec selected: default 14:29:49.469 [main] DEBUG org.apache.http.client.protocol.RequestAuthCache - Auth cache not set in the context 14:29:49.471 [main] DEBUG org.apache.http.impl.conn.BasicHttpClientConnectionManager - Get connection for route {s}->https://api.mch.weixin.qq.com:443 14:29:49.490 [main] DEBUG org.apache.http.impl.execchain.MainClientExec - Opening connection {s}->https://api.mch.weixin.qq.com:443 14:29:49.558 [main] DEBUG org.apache.http.impl.conn.DefaultHttpClientConnectionOperator - Connecting to api.mch.weixin.qq.com/123.151.79.109:443 14:29:49.559 [main] DEBUG org.apache.http.conn.ssl.SSLConnectionSocketFactory - Connecting socket to api.mch.weixin.qq.com/123.151.79.109:443 with timeout 6000 14:29:49.640 [main] DEBUG org.apache.http.conn.ssl.SSLConnectionSocketFactory - Enabled protocols: [TLSv1, TLSv1.1, TLSv1.2] 14:29:49.640 [main] DEBUG org.apache.http.conn.ssl.SSLConnectionSocketFactory - Enabled cipher suites:[TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384, TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384, TLS_RSA_WITH_AES_256_CBC_SHA256, TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384, TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384, TLS_DHE_RSA_WITH_AES_256_CBC_SHA256, TLS_DHE_DSS_WITH_AES_256_CBC_SHA256, TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA, TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA, TLS_RSA_WITH_AES_256_CBC_SHA, TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA, TLS_ECDH_RSA_WITH_AES_256_CBC_SHA, TLS_DHE_RSA_WITH_AES_256_CBC_SHA, TLS_DHE_DSS_WITH_AES_256_CBC_SHA, TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256, TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256, TLS_RSA_WITH_AES_128_CBC_SHA256, TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256, TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256, TLS_DHE_RSA_WITH_AES_128_CBC_SHA256, TLS_DHE_DSS_WITH_AES_128_CBC_SHA256, TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA, TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA, TLS_RSA_WITH_AES_128_CBC_SHA, TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA, TLS_ECDH_RSA_WITH_AES_128_CBC_SHA, TLS_DHE_RSA_WITH_AES_128_CBC_SHA, TLS_DHE_DSS_WITH_AES_128_CBC_SHA, TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384, TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384, TLS_RSA_WITH_AES_256_GCM_SHA384, TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384, TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384, TLS_DHE_RSA_WITH_AES_256_GCM_SHA384, TLS_DHE_DSS_WITH_AES_256_GCM_SHA384, TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, TLS_RSA_WITH_AES_128_GCM_SHA256, TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256, TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256, TLS_DHE_RSA_WITH_AES_128_GCM_SHA256, TLS_DHE_DSS_WITH_AES_128_GCM_SHA256, TLS_EMPTY_RENEGOTIATION_INFO_SCSV] 14:29:49.640 [main] DEBUG org.apache.http.conn.ssl.SSLConnectionSocketFactory - Starting handshake 14:29:49.746 [main] DEBUG org.apache.http.conn.ssl.SSLConnectionSocketFactory - Secure session established 14:29:49.746 [main] DEBUG org.apache.http.conn.ssl.SSLConnectionSocketFactory - negotiated protocol: TLSv1.2 14:29:49.746 [main] DEBUG org.apache.http.conn.ssl.SSLConnectionSocketFactory - negotiated cipher suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 14:29:49.746 [main] DEBUG org.apache.http.conn.ssl.SSLConnectionSocketFactory - peer principal: CN=payapp.weixin.qq.com, OU=R&D, O=Tencent Technology (Shenzhen) Company Limited, L=Shenzhen, ST=Guangdong, C=CN 14:29:49.747 [main] DEBUG org.apache.http.conn.ssl.SSLConnectionSocketFactory - peer alternative names: [payapp.weixin.qq.com, api2.mch.weixin.qq.com, apihk.mch.weixin.qq.com, log.weixin.qq.com, fraud.mch.weixin.qq.com, za.pay.wechat.com, action.weixin.qq.com, mch.weixin.qq.com, api.mch.weixin.qq.com, apius.mch.weixin.qq.com, fraudus.mch.weixin.qq.com, apitest.mch.weixin.qq.com, oz.weixin.qq.com, fraudhk.mch.weixin.qq.com, act.weixin.qq.com, pay.weops.qq.com, wx.gtimg.com, api.oz.weixin.qq.com, api.pay.weixin.qq.com, pay.weixin.qq.com] 14:29:49.747 [main] DEBUG org.apache.http.conn.ssl.SSLConnectionSocketFactory - issuer principal: CN=GeoTrust RSA CA 2018, OU=www.digicert.com, O=DigiCert Inc, C=US 14:29:49.752 [main] DEBUG org.apache.http.impl.conn.DefaultHttpClientConnectionOperator - Connection established 192.168.1.88:34217<->123.151.79.109:443 14:29:49.752 [main] DEBUG org.apache.http.impl.conn.DefaultManagedHttpClientConnection - http-outgoing-0: set socket timeout to 8000 14:29:49.752 [main] DEBUG org.apache.http.impl.execchain.MainClientExec - Executing request POST /sandboxnew/pay/getsignkey HTTP/1.1 14:29:49.752 [main] DEBUG org.apache.http.impl.execchain.MainClientExec - Target auth state: UNCHALLENGED 14:29:49.753 [main] DEBUG org.apache.http.impl.execchain.MainClientExec - Proxy auth state: UNCHALLENGED 14:29:49.754 [main] DEBUG org.apache.http.headers - http-outgoing-0 >> POST /sandboxnew/pay/getsignkey HTTP/1.1 14:29:49.754 [main] DEBUG org.apache.http.headers - http-outgoing-0 >> Content-Type: text/xml 14:29:49.757 [main] DEBUG org.apache.http.headers - http-outgoing-0 >> User-Agent: WXPaySDK/3.0.9 (amd64 Windows 10 10.0) Java/1.8.0_191 HttpClient/4.5.3 1391042002 14:29:49.757 [main] DEBUG org.apache.http.headers - http-outgoing-0 >> Content-Length: 204 14:29:49.757 [main] DEBUG org.apache.http.headers - http-outgoing-0 >> Host: api.mch.weixin.qq.com 14:29:49.757 [main] DEBUG org.apache.http.headers - http-outgoing-0 >> Connection: Keep-Alive 14:29:49.757 [main] DEBUG org.apache.http.headers - http-outgoing-0 >> Accept-Encoding: gzip,deflate 14:29:49.758 [main] DEBUG org.apache.http.wire - http-outgoing-0 >> "POST /sandboxnew/pay/getsignkey HTTP/1.1[\r][\n]" 14:29:49.758 [main] DEBUG org.apache.http.wire - http-outgoing-0 >> "Content-Type: text/xml[\r][\n]" 14:29:49.758 [main] DEBUG org.apache.http.wire - http-outgoing-0 >> "User-Agent: WXPaySDK/3.0.9 (amd64 Windows 10 10.0) Java/1.8.0_191 HttpClient/4.5.3 1391042002[\r][\n]" 14:29:49.758 [main] DEBUG org.apache.http.wire - http-outgoing-0 >> "Content-Length: 204[\r][\n]" 14:29:49.758 [main] DEBUG org.apache.http.wire - http-outgoing-0 >> "Host: api.mch.weixin.qq.com[\r][\n]" 14:29:49.758 [main] DEBUG org.apache.http.wire - http-outgoing-0 >> "Connection: Keep-Alive[\r][\n]" 14:29:49.758 [main] DEBUG org.apache.http.wire - http-outgoing-0 >> "Accept-Encoding: gzip,deflate[\r][\n]" 14:29:49.759 [main] DEBUG org.apache.http.wire - http-outgoing-0 >> "[\r][\n]" 14:29:49.759 [main] DEBUG org.apache.http.wire - http-outgoing-0 >> "<?xml version="1.0" encoding="UTF-8" standalone="no"?>[\r][\n]" 14:29:49.759 [main] DEBUG org.apache.http.wire - http-outgoing-0 >> "<xml>[\r][\n]" 14:29:49.759 [main] DEBUG org.apache.http.wire - http-outgoing-0 >> "<nonce_str>lT32nr8c25R2gHJiNId2UY80MXaM6Jig</nonce_str>[\r][\n]" 14:29:49.759 [main] DEBUG org.apache.http.wire - http-outgoing-0 >> "<sign>D11F3CBE102948E827312A49036AC0BC</sign>[\r][\n]" 14:29:49.759 [main] DEBUG org.apache.http.wire - http-outgoing-0 >> "<mch_id>1391042002</mch_id>[\r][\n]" 14:29:49.759 [main] DEBUG org.apache.http.wire - http-outgoing-0 >> "</xml>[\r][\n]" 14:29:51.554 [main] DEBUG org.apache.http.wire - http-outgoing-0 << "HTTP/1.1 200 OK[\r][\n]" 14:29:51.554 [main] DEBUG org.apache.http.wire - http-outgoing-0 << "Server: nginx[\r][\n]" 14:29:51.554 [main] DEBUG org.apache.http.wire - http-outgoing-0 << "Date: Wed, 19 Dec 2018 06:29:54 GMT[\r][\n]" 14:29:51.554 [main] DEBUG org.apache.http.wire - http-outgoing-0 << "Content-Type: text/plain;charset=utf-8[\r][\n]" 14:29:51.554 [main] DEBUG org.apache.http.wire - http-outgoing-0 << "Content-Length: 185[\r][\n]" 14:29:51.554 [main] DEBUG org.apache.http.wire - http-outgoing-0 << "Connection: keep-alive[\r][\n]" 14:29:51.554 [main] DEBUG org.apache.http.wire - http-outgoing-0 << "Keep-Alive: timeout=8[\r][\n]" 14:29:51.554 [main] DEBUG org.apache.http.wire - http-outgoing-0 << "from: sandbox[\r][\n]" 14:29:51.554 [main] DEBUG org.apache.http.wire - http-outgoing-0 << "[\r][\n]" 14:29:51.554 [main] DEBUG org.apache.http.wire - http-outgoing-0 << "<xml>[\n]" 14:29:51.554 [main] DEBUG org.apache.http.wire - http-outgoing-0 << " <return_code><![CDATA[SUCCESS]]></return_code>[\n]" 14:29:51.554 [main] DEBUG org.apache.http.wire - http-outgoing-0 << " <return_msg><![CDATA[ok]]></return_msg>[\n]" 14:29:51.554 [main] DEBUG org.apache.http.wire - http-outgoing-0 << " <sandbox_signkey><![CDATA[a24d43852df9d28af467151605a0bbf9]]></sandbox_signkey>[\n]" 14:29:51.554 [main] DEBUG org.apache.http.wire - http-outgoing-0 << "</xml>" 14:29:51.556 [main] DEBUG org.apache.http.headers - http-outgoing-0 << HTTP/1.1 200 OK 14:29:51.556 [main] DEBUG org.apache.http.headers - http-outgoing-0 << Server: nginx 14:29:51.556 [main] DEBUG org.apache.http.headers - http-outgoing-0 << Date: Wed, 19 Dec 2018 06:29:54 GMT 14:29:51.556 [main] DEBUG org.apache.http.headers - http-outgoing-0 << Content-Type: text/plain;charset=utf-8 14:29:51.556 [main] DEBUG org.apache.http.headers - http-outgoing-0 << Content-Length: 185 14:29:51.556 [main] DEBUG org.apache.http.headers - http-outgoing-0 << Connection: keep-alive 14:29:51.556 [main] DEBUG org.apache.http.headers - http-outgoing-0 << Keep-Alive: timeout=8 14:29:51.556 [main] DEBUG org.apache.http.headers - http-outgoing-0 << from: sandbox 14:29:51.561 [main] DEBUG org.apache.http.impl.execchain.MainClientExec - Connection can be kept alive for 8000 MILLISECONDS 14:29:51.563 [main] DEBUG org.apache.http.impl.conn.BasicHttpClientConnectionManager - Releasing connection 192.168.1.88:34217<->123.151.79.109:443 14:29:51.563 [main] DEBUG org.apache.http.impl.conn.BasicHttpClientConnectionManager - Connection can be kept alive for 8000 MILLISECONDS 14:29:51.566 [main] INFO wxpay java sdk - report v1.1,WXPaySDK/3.0.9,lT32nr8c25R2gHJiNId2UY80MXaM6Jig,1545200991,2983,api.mch.weixin.qq.com,true,6000,8000,0,0,0,191B4E07E7F203580C6CB6E0CDAD513D46EE6C7CF6088B9301FB9960E02DAD07 14:29:51.577 [main] INFO wxpay java sdk - retrieveSandboxSignKey:{sandbox_signkey=a24d43852df9d28af467151605a0bbf9, return_msg=ok, return_code=SUCCESS} a24d43852df9d28af467151605a0bbf9