URL编码Alamofire GET参数与SwiftyJSON

我试图让Alamofire在GET请求中发送以下参数，但它发送乱码：

filters={"$and":[{"name":{"$bw":"duke"},"country":"gb"}]} //www.example.com/example?filters={"$and":[{"name":{"$bw":"duke"},"country":"gb"}]} //Obviously URL encoded 

这是我的代码：

 let jsonObject = ["$and":[["name":["$bw":string], "country":"gb"]]] let json = JSON(jsonObject) print(json) 

输出

{“$ and”：[{“name”：{“$ bw”：“duke”}，“country”：“gb”}]}

这是我的参数要求：

 let params = ["filters" : json.rawValue, "limit":"1", "KEY":"my_key"] 

这就是AlamoFire发送的内容：

 KEY=my_key& filters[$and][][country]=gb& filters[$and][][name][$bw]=duke& limit=1 

正如你所看到的filter参数是一个完整的混乱。 我究竟做错了什么？

Answer 1

默认情况下，Alamofire使用POST主体中的Parameter List对参数进行编码。 尝试将编码更改为JSON 。 这样Alamofire会按照您的期望将字典序列化为JSONstring：

 let parameters = [ "foo": [1,2,3], "bar": [ "baz": "qux" ] ] Alamofire.request(.POST, "http://httpbin.org/post", parameters: parameters, encoding: .JSON) // HTTP body: {"foo": [1, 2, 3], "bar": {"baz": "qux"}} 

或者使用你的代码：

 let string = "duke" let jsonObject = ["$and":[["name":["$bw":string], "country":"gb"]]] let json = JSON(jsonObject) let params = ["filters" : json.rawValue, "limit":"1", "KEY":"my_key"] Alamofire.request(.POST, "http://httpbin.org/post", parameters: params, encoding: .JSON) .responseString(encoding: NSUTF8StringEncoding) { request, response, content, error in NSLog("Request: %@ - %@\n%@", request.HTTPMethod!, request.URL!, request.HTTPBody.map { body in NSString(data: body, encoding: NSUTF8StringEncoding) ?? "" } ?? "") if let response = response { NSLog("Response: %@\n%@", response, content ?? "") } } 

获取输出：

 Request: POST - http://httpbin.org/post {"filters":{"$and":[{"name":{"$bw":"duke"},"country":"gb"}]},"limit":"1","KEY":"my_key"} 

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编辑：GET参数中的URL编码的JSON

如果要在GET参数中发送URL编码的JSON，则必须首先生成JSONstring，然后在参数字典中将其作为string传递：

SWIFT 1

 let string = "duke" let jsonObject = ["$and":[["name":["$bw":string], "country":"gb"]]] let json = JSON(jsonObject) // Generate the string representation of the JSON value let jsonString = json.rawString(encoding: NSUTF8StringEncoding, options: nil)! let params = ["filters" : jsonString, "limit": "1", "KEY": "my_key"] Alamofire.request(.GET, "http://httpbin.org/post", parameters: params) .responseString(encoding: NSUTF8StringEncoding) { request, response, content, error in NSLog("Request: %@ - %@\n%@", request.HTTPMethod!, request.URL!, request.HTTPBody.map { body in NSString(data: body, encoding: NSUTF8StringEncoding) ?? "" } ?? "") if let response = response { NSLog("Response: %@\n%@", response, content ?? "") } } 

SWIFT 2

 let string = "duke" let jsonObject = ["$and":[["name":["$bw":string], "country":"gb"]]] let json = JSON(jsonObject) // Generate the string representation of the JSON value let jsonString = json.rawString(NSUTF8StringEncoding)! let params = ["filters" : jsonString, "limit": "1", "KEY": "my_key"] Alamofire.request(.GET, "http://httpbin.org/post", parameters: params) .responseString(encoding: NSUTF8StringEncoding) { request, response, result in NSLog("Request: %@ - %@\n%@", request!.HTTPMethod!, request!.URL!, request!.HTTPBody.map { body in NSString(data: body, encoding: NSUTF8StringEncoding) ?? "" } ?? "") switch result { case .Success(let value): NSLog("Response with content: %@", value) case .Failure(let data, _): NSLog("Response with error: %@", data ?? NSData()) } } 

SWIFT 3和Alamofire 4.0

 let string = "duke" let jsonObject = ["$and":[["name":["$bw":string], "country":"gb"]]] let json = JSON(jsonObject) // Generate the string representation of the JSON value let jsonString = json.rawString(.utf8)! let params = ["filters" : jsonString, "limit": "1", "KEY": "my_key"] Alamofire.request("http://httpbin.org/post", method: .get, parameters: params) .responseString { response in #if DEBUG let request = response.request NSLog("Request: \(request!.httpMethod!) - \(request!.url!.absoluteString)\n\(request!.httpBody.map { body in String(data: body, encoding: .utf8) ?? "" } ?? "")") switch response.result { case .success(let value): print("Response with content \(value)") case .failure(let error): print("Response with error: \(error as NSError): \(response.data ?? Data())") } #endif } 

这会通过以下URL生成一个GET请求：

 http://httpbin.org/post?KEY=my_key&filters=%7B%22%24and%22%3A%5B%7B%22name%22%3A%7B%22%24bw%22%3A%22duke%22%7D%2C%22country%22%3A%22gb%22%7D%5D%7D&limit=1 

该URL解码是：

 http://httpbin.org/post?KEY=my_key&filters={"$and":[{"name":{"$bw":"duke"},"country":"gb"}]}&limit=1