ios - Swift 3.0 和网络服务

Question

尝试将我们的 Web 服务读入 UITableViewController，它只将第一条记录返回给模拟器。所以希望有人能够查看代码并指导我走上正确的道路。最终目标是将它放入 UITableViewCell 中，这样我就可以很好地格式化但只是想获取所有记录。

这是将返回的部分 json 文件的 View 。

{
"Count":11518,
"Result":[
    {
     "cuName": "#1",
     "charter_Num": 
     "16328","City": 
     "Jonesboro",
     "State_id": "GA",
     "cuName_location": "#1 - Jonesboro, GA"
     },
     {
     "cuName": "@lantec Financial",
     "charter_Num": "7965",
     "City": "Virginia Beach",
     "State_id": "VA",
     "cuName_location": "@lantec Financial - Virginia Beach, VA"
     }]
}

这是读取 json 网络服务并尝试解析并放入表中的代码。

func get_data_from_url(_ link:String)
   {
    let url:URL = URL(string: link)!
    let session = URLSession.shared

    let request = NSMutableURLRequest(url: url)
    request.httpMethod = "GET"
    request.cachePolicy = NSURLRequest.CachePolicy.reloadIgnoringCacheData


    let task = session.dataTask(with: request as URLRequest, completionHandler: {
        (
        data, response, error) in

        guard let _:Data = data, let _:URLResponse = response  , error == nil else {
             return
        }


        self.extract_json(data!)
    })

    task.resume()
}


func extract_json(_ data: Data)
{
    let json: Any?

    do
    {
        json = try JSONSerialization.jsonObject(with: data, options: [])
    }
    catch
    {
        return
    }

    //Commented out the following lines because it doesn't return anything when using the modified code that works
    //
    //        guard let data_list = json as? NSArray else
    //        {
    //            return
    //        }

    //This code works but only gives me the 1st record back
    if let cu_list = try? json as? [String:Any],
        let result = cu_list?["Result"] as? [[String:Any]],
        let charter_num = result[0]["charter_Num"] as? String,
        let value = result[0]["cuName_location"] as? String, result.count > 0 {
        TableData.append(value + " (" + charter_num + ")")
    } else {
        print("bad json - do some recovery")
    }

    DispatchQueue.main.async(execute: {self.do_table_refresh()})

}

Answer 1

您正在引用 result 对象中的第 0 个索引元素，它只会返回 JSON 数据中的第一个记录。您需要运行循环并将数据附加到数组，您需要使用该数组来填充 UITableView 中的数据。