Dan*_*lho 3 xml soap wsdl dart flutter
我需要使用 Flutter 向 .NET Webservice (WSDL) 发出 SOAP 请求。
该网络服务有一个基本的身份验证(用户、密码)和一些带有预定义信封的服务。
所以我尝试创建一个 SOAP 信封:
String requestBody = "<soapenv:Envelope xmlns:soapenv=\"http://schemas.xmlsoap.org/soap/envelope/\" xmlns:tot=\"http://www.totvs.com/\"> <soapenv:Header/> <soapenv:Body> <tot:RealizarConsultaSQL> <!--Optional:--> <tot:codSentenca>ETHOS.TESTE</tot:codSentenca> <!--Optional:--> <tot:codColigada>0</tot:codColigada> <!--Optional:--> <tot:codSistema>F</tot:codSistema> <!--Optional:--> <tot:parameters></tot:parameters> </tot:RealizarConsultaSQL> </soapenv:Body></soapenv:Envelope>";
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此信封有效。第二步是建立 http 连接:
http.Response response = await http.post(
request,
headers: {
"Accept-Encoding": "gzip,deflate",
"Content-Length": utf8.encode(requestBody).length.toString(),
"Content-Type": "text/xmlc",
"SOAPAction": "http://www.totvs.com/IwsConsultaSQL/RealizarConsultaSQL",
"Authorization": "Basic bWVzdHJlOnRvdHZz",
"Host": "totvs.brazilsouth.cloudapp.azure.com:8051",
"Connection": "Keep-Alive",
"User-Agent": "Apache-HttpClient/4.1.1 (java 1.5)"
},
body: utf8.encode(requestBody),
encoding: Encoding.getByName("UTF-8")).then((onValue)
{
print("Response status: ${onValue.statusCode}");
print("Response body: ${onValue.body}");
});
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此时我刚刚收到 411 代码:
<hr><p>HTTP Error 411. The request must be chunked or have a content length.</p>
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所以,我有两个很大的疑问:
我是 Dart/Flutter 新手
经过大量时间的测试,我通过使用此标头获得了成功:
"SOAPAction": "http://www.totvs.com/IwsConsultaSQL/RealizarConsultaSQL",
"Content-Type": "text/xml;charset=UTF-8",
"Authorization": "Basic bWVzdHJlOnRvdHZz",
"cache-control": "no-cache"
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看来 Content-Length 是自动发送的,所以,有效的代码是这样的:
http.Response response = await http.post(
request,
headers: {
"SOAPAction": "http://www.totvs.com/IwsConsultaSQL/RealizarConsultaSQL",
"Content-Type": "text/xml;charset=UTF-8",
"Authorization": "Basic bWVzdHJlOnRvdHZz",
"cache-control": "no-cache"
},
body: utf8.encode(requestBody),
encoding: Encoding.getByName("UTF-8")
).then((onValue)
{
print("Response status: ${onValue.statusCode}");
print("Response body: ${onValue.body}");
});
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感谢大家的帮助,我按照之前的建议通过邮递员代码得到了解决方案,谢谢。
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