使用AFNetworking框架傳x-www-form-urlencode資料伺服器一直返回引數不存在的錯誤。

let manager = AFHTTPSessionManager()
manager.requestSerializer = AFHTTPRequestSerializer()
manager.requestSerializer.setValue(token, forHTTPHeaderField: "Authorization")
manager.requestSerializer.setValue("5", forHTTPHeaderField: "beId"
 
)
manager.requestSerializer.setValue("application/x-www-form-urlencode", forHTTPHeaderField: "Content-Type")
manager.post(url, parameters: dict, progress: nil, success: { task, responseObject in

    if let anObject = responseObject {
        print("上傳成功 === \(anObject)")
    }
}, failure: { task, error in
 

    print("上傳錯誤 == error == \(error)")
})

看了這篇https://stackoverflow.com/questions/35239506/afnetworking-3-x-www-form-urlencoded-post-data才找到解決的辦法。

對比之後發現他沒加manager.requestSerializer.setValue("application/x-www-form-urlencode", forHTTPHeaderField: "Content-Type")這句程式碼，試著去掉果然能正常返回。
修改後完整程式碼：

let manager = AFHTTPSessionManager()
manager.requestSerializer
 
 = AFHTTPRequestSerializer()
manager.requestSerializer.setValue(token, forHTTPHeaderField: "Authorization")
manager.requestSerializer.setValue("5", forHTTPHeaderField: "beId")
//        manager.requestSerializer.setValue("application/x-www-form-urlencode", forHTTPHeaderField: "Content-Type")
manager.post(url, parameters: dict, progress: nil, success: { task, responseObject in

    if let anObject = responseObject {
        print("上傳成功 === \(anObject)")
    }
}, failure: { task, error in
    print("上傳錯誤 == error == \(error)")
})

想要post x-www-form-urlencode資料反而不能加請求頭宣告Content-Type為x-www-form-urlencode。