Alamofire 响应返回 nil 但在 Postman 上工作答案

【问题标题】：Alamofire response return nil but work on PostmanAlamofire 响应返回 nil 但在 Postman 上工作
【发布时间】：2019-01-03 02:58:56
【问题描述】：

我有参数：

{"name": "oaseme dabo", "spouseName": "", "fatherName": "hajime kasuga", "income": "Please Choose", "homeAddress": "", "locationAccessibility": "Please Choose", "gender": "Please Choose", "exactOccupation": "", "maritalStatus": "Please Choose", "source_id": "123456", "dateOfBirth": "01 January 1900", "exactIncome": "1", "howInfluenceThisPerson": "Please Choose", "motherName": "shizuka kasuga", "knowThisPerson": "Please Choose", "prospectingStatus": "Please Choose", "ageBand": "Choose Age Band", "occupation": "Please Choose", "sourceOfProspect": "Family & Relatives", "agentCode": "123456", "totalChildren": "0", "howCloseAreYou": "Please Choose", "workAddress": "", "exactSourceOfProspect": ""}

我把它放进身体里：

class func sentContactBody(agentCode: String, source_id: String, dateOfBirth: String, ageBand: String, exactIncome: String, exactOccupation: String, fatherName: String, gender: String, homeAddress: String, howCloseAreYou: String, howInfluenceThisPerson: String, income: String, knowThisPerson: String, locationAccessibility: String, maritalStatus: String, motherName: String, name: String, occupation: String, prospectingStatus: String, sourceOfProspect: String, spouseName: String, totalChildren: String, workAddress: String, exactSourceOfProspect: String) -> Parameters{
    let sentContact : Parameters = [
        "agentCode": agentCode,
        "source_id": source_id,
        "dateOfBirth": dateOfBirth,
        "ageBand": ageBand,
        "exactIncome": exactIncome,
        "exactOccupation": exactOccupation,
        "fatherName": fatherName,
        "gender": gender,
        "homeAddress": homeAddress,
        "howCloseAreYou": howCloseAreYou,
        "howInfluenceThisPerson": howInfluenceThisPerson,
        "income": income,
        "knowThisPerson": knowThisPerson,
        "locationAccessibility": locationAccessibility,
        "maritalStatus": maritalStatus,
        "motherName": motherName,
        "name": name,
        "occupation": occupation,
        "prospectingStatus": prospectingStatus,
        "sourceOfProspect": sourceOfProspect,
        "spouseName": spouseName,
        "totalChildren": totalChildren,
        "workAddress": workAddress,
        "exactSourceOfProspect": exactSourceOfProspect
    ]

    return sentContact
}

我把它称为参数：

let param = HTTPBody.sentContactBody(agentCode: agentCode, source_id: source_id, dateOfBirth: dateOfBirth, ageBand: ageBand, exactIncome: exactIncome, exactOccupation: exactOccupation, fatherName: fatherName, gender: gender, homeAddress: homeAddress, howCloseAreYou: howCloseAreYou, howInfluenceThisPerson: howInfluenceThisPerson, income: income, knowThisPerson: knowThisPerson, locationAccessibility: locationAccessibility, maritalStatus: maritalStatus, motherName: motherName, name: name, occupation: occupation, prospectingStatus: prospectingStatus, sourceOfProspect: sourceOfProspect, spouseName: spouseName, totalChildren: totalChildren, workAddress: workAddress, exactSourceOfProspect: exactSourceOfProspect)

当我使用 Alamofire 调用时，它总是返回 nil，所以它被视为失败：

Alamofire.request(Constant.sentContactSAMDB(), method: .post, parameters: param, encoding: JSONEncoding.default, headers: ConnectionManager.sharedIns.getHTTPHeadersSAMDB())
        .responseObject{ (response: DataResponse<SAMDBModel>) in
            switch(response.result) {
            case .success(_):
                print("contact response result value:\(response.result.value)")
                if response.result.value != nil {
                    self.samDBModel = response.result.value
                    let status = self.samDBModel?.status
                    let statusCode = response.response?.statusCode
                    print("sent contact statusCode:\(String(describing: statusCode))")
                    if(statusCode == 200){
                        let result = self.samDBModel?.result
                        let samDBStatus = result![0].status
                        let samDBError = result![0].error
                        print("sent contact samDBStatus:\(samDBStatus)")
                    }
                }
                break

            case .failure(_):
                print("contact failure response result value:\(response.result.value)")
                self.samDBModel = response.result.value
                let status = self.samDBModel?.status ?? "Failed connect to Tokio Marine server"
                break

            }
    }

但它适用于邮递员：

标头只有 Content-Type : application/json

使它工作的正确代码是什么？我已经放了 plist 异常域并允许任意加载 YES。

【问题讨论】：

@Adrian 端点：api-samuat.tokiomarine-life.co.id/activities/contact
可以尝试编码：URLEncoding.default
@ZahirulIslam , URLEncoding.default 也得到了联系失败响应结果值：nil
这是您第一次使用 Alamofire 吗？不要将其反序列化为 DataResponse 尝试使用 DataResponse 。或代替 . responseObject 使用 .responseJSON 然后手动转换 response.result。我相信这是反序列化部分的问题
@AndrewJamesRamirez，我尝试使用 .responseJSON{ (response) 也得到了联系失败响应结果值：nil

标签： ios swift alamofire

【解决方案1】：

像这样正确设置请求正文和标头：

let data = try! JSONSerialization.data(withJSONObject: your_parameters, options: JSONSerialization.WritingOptions.prettyPrinted)
var request = URLRequest(url: your_URL)
request.httpBody = data
request.setValue("application/json", forHTTPHeaderField: "Content-Type")

【讨论】：

谢谢。它已经解决了，因为 http:// 在异常域中。你的回答也很好地利用了 NSURLSession

【解决方案2】：

让参数：[String:Any] = ["key":"Value"]

request(url, method: method, parameters: param, encoding: JSONEncoding.default, headers: yourheader).responseJSON { (response) in 
       if(response.result.isSuccess){
        }
       else{
        }
}

这将为您提供正确的 json 转换响应。再三考虑，请从 API 端确认所有参数和标头类型。

【讨论】：

谢谢。由于 http:// 在异常域中，它已经解决了。