Ios 如何以字符串形式返回此swiftHTTP函数的json属性？

我正在尝试学习如何将swiftHTTP与mishap api（）结合使用。这是我到目前为止的代码

import SwiftHTTP

    func splitSentenceIntoWordsUsingTextAnalysis (string: String) -> String {
    var request = HTTPTask()
    var params = ["text": "这是中文测试"] //: Dictionary<String,AnyObject>
    //request.requestSerializer = JSONRequestSerializer()
    request.requestSerializer.headers["X-Mashape-Key"] = "My-API-Key"
    request.requestSerializer.headers["Content-Type"] = "application/x-www-form-urlencoded"
    request.responseSerializer = JSONResponseSerializer()
    request.POST("https://textanalysis.p.mashape.com/segmenter", parameters: params, success: {(response: HTTPResponse) in if let json: AnyObject = response.responseObject { println("\(json)") } },failure: {(error: NSError, response: HTTPResponse?) in println("\(error)") })

// {
// result = "\U4f60 \U53eb \U4ec0\U4e48 \U540d\U5b57";
// }

return ?? // I want to return the "result" in the json as a string.

}

导入快捷http
func splitSentenceIntoWordsUsingTextAnalysis（string:string）->string{
var request=HTTPTask（）
变量参数=[“文本”：这是中文测试"] //: 字典
//request.requestSerializer=JSONRequestSerializer（）
request.requestSerializer.headers[“X-Mashape-Key”]=“我的API密钥”
request.requestSerializer.headers[“内容类型”]=“应用程序/x-www-form-urlencoded”
request.responseSerializer=JSONResponseSerializer（）
请求邮寄（”https://textanalysis.p.mashape.com/segmenter，参数：params，成功：{（response:HTTPResponse）in if let json:AnyObject=response.responseObject{println（\（json）”）}，失败：{（error:NSError，response:HTTPResponse？）in println（\（error）}）
// {
//结果=“\U4f60\U53eb\U4ec0\U4e48\U540d\U5b57”；
// }
return://我想将json中的“result”作为字符串返回。
}

---

如何将json中的“result”作为字符串返回？

在这段代码中，我发出了一个HTTP请求，并从示例php文件中获取json数据：

        // Making the HTTP request

        var post:NSString = "data=\(data)"

        NSLog("PostData: %@",post)

        var url:NSURL = NSURL(string: "http://domain.com/jsontest.php")!

        var postData:NSData = post.dataUsingEncoding(NSASCIIStringEncoding)!

        var postLength:NSString = String( postData.length )

        var request:NSMutableURLRequest = NSMutableURLRequest(URL: url)
        request.HTTPMethod = "POST"
        request.HTTPBody = postData
        request.setValue(postLength, forHTTPHeaderField: "Content-Length")
        request.setValue("application/x-www-form-urlencoded", forHTTPHeaderField: "Content-Type")
        request.setValue("application/json", forHTTPHeaderField: "Accept")


        var reponseError: NSError?
        var response: NSURLResponse?

        var urlData: NSData? = NSURLConnection.sendSynchronousRequest(request, returningResponse:&response, error:&reponseError)

        if ( urlData != nil ) {
            let res = response as NSHTTPURLResponse!

            NSLog("Response code: %ld", res.statusCode)

            if (res.statusCode >= 200 && res.statusCode < 300)
            {
                var responseData:NSString  = NSString(data:urlData!, encoding:NSUTF8StringEncoding)!

                NSLog("Response ==> %@", responseData)

                var error: NSError?


                // Here i make the JSON dictionary

                let jsonData:NSDictionary = NSJSONSerialization.JSONObjectWithData(urlData!, options:NSJSONReadingOptions.MutableContainers , error: &error) as NSDictionary

                // Like this you can access the values of the JSON dictionary as string

                name.text = jsonData.valueForKey("name") as NSString
                last.text = jsonData.valueForKey("last") as NSString

            }
        }

//发出HTTP请求
var post:NSString=“数据=\（数据）”
NSLog（“PostData:%@”，post）
变量url:NSURL=NSURL（字符串：http://domain.com/jsontest.php")!
var postData:NSData=post.dataUsingEncoding（NSASCIIStringEncoding）！
变量postLength:NSString=String（postData.length）
var请求：NSMutableURLRequest=NSMutableURLRequest（URL:URL）
request.HTTPMethod=“POST”
request.HTTPBody=postData
request.setValue（postLength，forHTTPHeaderField:“内容长度”）
request.setValue（“application/x-www-form-urlencoded”，forHTTPHeaderField:“内容类型”）
request.setValue（“application/json”，forHTTPHeaderField:“Accept”）
var REPORNSERROR:NSError？
var响应：nsurresponse？
变量urlData:NSData？=NSURLConnection.sendSynchronousRequest（请求、返回响应：&response、错误：&ResponseError）
if（urlData！=nil）{
让res=响应为NSHTTPURLResponse！
NSLog（“响应代码：%ld”，res.statusCode）
如果（res.statusCode>=200&&res.statusCode<300）
{
var responseData:NSString=NSString（数据：urlData！，编码：NSUTF8StringEncoding）！
NSLog（“响应==>%@”，响应数据）
var错误：N错误？
//这里我制作JSON字典
让jsonData:NSDictionary=NSJSONSerialization.JSONObjectWithData（urlData！，选项：NSJSONReadingOptions.MutableContainers，错误：&error）作为NSDictionary
//这样，您就可以以字符串的形式访问JSON字典的值
name.text=jsonData.valueForKey（“名称”）作为NSString
last.text=jsonData.valueForKey（“last”）作为NSString
}
}

---

希望有帮助：）

SwiftHTTP与NSURLSession一样，在设计上是异步的。这意味着您不能仅仅从该方法返回

import SwiftHTTP

func splitSentenceIntoWordsUsingTextAnalysis (string: String, finished:((String) -> Void)) {
    var request = HTTPTask()
    var params = ["text": "这是中文测试"] //: Dictionary<String,AnyObject>
    //request.requestSerializer = JSONRequestSerializer()
    request.requestSerializer.headers["X-Mashape-Key"] = "My-API-Key"
    request.requestSerializer.headers["Content-Type"] = "application/x-www-form-urlencoded"
    request.responseSerializer = JSONResponseSerializer()
    request.POST("https://textanalysis.p.mashape.com/segmenter", parameters: params, success: {
        (response: HTTPResponse) in
        if let res: AnyObject = response.responseObject {
            // decode res as string.
            let resString = res as String
            finished(resString)
        }
        }, failure: {(error: NSError, response: HTTPResponse?) in
            println(" error \(error)")
    })
}

也可以看到这个Github问题

splitSentenceIntoWordsUsingTextAnalysis("textToSplit", {(str:String) in
    println(str)
    // do stuff with str here.
})