我正在做一个发帖请求,我想在其中键入问题,并通过发帖请求获得最常见的答案

时间:2019-04-19 12:47:45

标签: swift post request

我已经完成了请求后的工作,但不确定如何发送完整的问题以及将最常见的答案返回给我的应用程序。

我的程序中非常需要此代码,因此希望获得一些有关如何使其工作的示例

试图用“ +”号代替空格将问题改成参数,结果什么也没有。

 @IBAction func GetAnswer(_ sender: Any) {

        let myUrl = URL(string: "http://www.google.com/search?q=");

        var request = URLRequest(url:myUrl!)

        request.httpMethod = "POST"

        let postString = questionAsked;
        request.httpBody = postString.data(using: String.Encoding.utf8);
        let task = URLSession.shared.dataTask(with: request) { (data: Data?, response: URLResponse?, error: Error?) in

            if error != nil
            {

                print("error=\(String(describing: error))")
                return
            }
            print("response = \(String(describing: response))")
            do {
                let json = try JSONSerialization.jsonObject(with: data!, options: .mutableContainers) as? NSDictionary
                if let parseJSON = json {
                    let answer = parseJSON[" Answer "] as? String
                    self.AnswerView.text = ("Anwer: \(String(describing: answer))")
                }
            } catch {
                print(error)
            }
        }
        task.resume()
    }

1 个答案:

答案 0 :(得分:0)

您不使用google.com/search,请检查api documentation

在操场上粘贴以下内容,应该是一个好的开始

struct Constants {
    static let apiKey = "YOUR_API_KEY"
    static let bundleId = "YOUR_IOS_APP_BUNDLE_ID"
    static let searchEngineId = "YOUR_SEARCH_ENGINE_ID"
}

func googleSearch(term: String, callback:@escaping ([(title: String, url: String)]?) -> Void) {
    let urlString = String(format: "https://www.googleapis.com/customsearch/v1?q=%@&cx=%@&key=%@", term, Constants.searchEngineId, Constants.apiKey)
    let encodedUrl = urlString.addingPercentEncoding(withAllowedCharacters: .urlQueryAllowed)

    guard let url = URL(string: encodedUrl ?? urlString) else {
        print("invalid url \(urlString)")
        return
    }

    let request = NSMutableURLRequest(url: url, cachePolicy: .useProtocolCachePolicy, timeoutInterval: 10)
    request.httpMethod = "GET"
    request.setValue(Constants.bundleId, forHTTPHeaderField: "X-Ios-Bundle-Identifier")

    let session = URLSession.shared
    let datatask = session.dataTask(with: request as URLRequest) { (data, response, error) in
        guard
            error == nil,
            let data = data,
            let json = try? JSONSerialization.jsonObject(with: data, options: .allowFragments) as? [String : Any]
        else {
            // error handing here
            callback(nil)
            return
        }

        guard let items = json["items"] as? [[String : Any]], items.count > 0 else {
            print("no results")
            return
        }

        callback(items.map { ($0["title"] as! String, $0["formattedUrl"] as! String) })
    }

    datatask.resume()
}

用法

googleSearch(term: "George Bush") { results in
    print(results ?? [])
}

使用以下网址创建新的搜索引擎

https://cse.google.com/cse/create/new

如果您想搜索整个网络,请执行以下步骤

  1. 使用https://cse.google.com/cse/setup/basic?cx=SEARCH_ENGINE_ID
  2. 编辑您的引擎
  3. 删除要搜索的站点
  4. 下列出的所有页面
  5. 打开搜索整个网络