使用 SOAP 的 IOS Swift 调用 Web 服务 [英] IOS Swift Call Web Service using SOAP

问题描述

我浏览了有关如何通过 Internet 上的 SOAP 表单 swift 调用 Web 服务的答案，并找到了一些答案.我试图实现我在这些答案中找到的代码，但不断得到一个 http 400 状态代码.我试图弄清楚我做错了什么.

I have looked through the answers to how to call a web service via SOAP form swift on the internet and found some answers. I have tried to implement the code I have found in those answers but continually get a http 400 status code. I am trying to figure our what I am doing wrong.

我已将问题提炼为视图控制器中的几行代码，如下所示，当按下 UI 上的按钮时调用该代码.我试图调用的网络服务可以在 http://www.cgsapi.com/CGSWebService.asmx 找到.

I have distilled the problem down to a few lines of code in a view controller as seen below an the code is called when a button on the UI is pressed. The web service I am trying to call can be found at http://www.cgsapi.com/CGSWebService.asmx.

(要查看 WSDL 文件，请将 ?wsdl 附加到 URL 的末尾.)

(To view the WSDL file append ?wsdl to the end of the URL.)

import UIKit

class ViewController: UIViewController {
var is_SoapMessage: String = "<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:cgs="http://www.cgsapi.com/"><soapenv:Header/><soapenv:Body><cgs:GetSystemStatus/></soapenv:Body></soapenv:Envelope>"

override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib.
}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}

@IBAction func btnClicked(sender: AnyObject)
{
    var is_URL: String = "http://www.cgsapi.com/CGSWebService.asmx"

    var lobj_Request = NSMutableURLRequest(URL: NSURL(string: is_URL)!)
    var session = NSURLSession.sharedSession()
    var err: NSError?

    lobj_Request.HTTPMethod = "POST"
    lobj_Request.addValue("www.cgsapi.com", forHTTPHeaderField: "Host")
    lobj_Request.addValue("text/xml; charset=utf-8", forHTTPHeaderField: "Content-Type")
    //lobj_Request.addValue(String(count(is_SoapMessage)), forHTTPHeaderField: "Content-Length")
    lobj_Request.addValue("223", forHTTPHeaderField: "Content-Length")
    lobj_Request.addValue("http://www.cgsapi.com/GetSystemStatus", forHTTPHeaderField: "SOAPAction")

    var task = session.dataTaskWithRequest(lobj_Request, completionHandler: {data, response, error -> Void in
        println("Response: (response)")
        var strData = NSString(data: data, encoding: NSUTF8StringEncoding)
        println("Body: (strData)")

        if error != nil
        {
            println("Error: " + error.description)
        }

    })
    task.resume()
}

}

知道为什么我调用它时会得到 http 400 状态吗?

Any idea why I am getting http 400 status when I call this?

推荐答案

所以我太傻了.主要的事情是我错过了将消息正文设置为 SOAP 请求.我更新后的更正代码如下:

So i was being silly. The main thing was that I missed setting the body of the message to the SOAP request. My updated corrected code is below:

//
//  ViewController.swift
//  TestWebServiceSoap
//
//  Created by George M. Ceaser Jr on 6/2/15.
//  Copyright (c) 2015 George M. Ceaser Jr. All rights reserved.
//

import UIKit

class ViewController: UIViewController {
var is_SoapMessage: String = "<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:cgs="http://www.cgsapi.com/"><soapenv:Header/><soapenv:Body><cgs:GetSystemStatus/></soapenv:Body></soapenv:Envelope>"

override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib.
}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}

@IBAction func btnClicked(sender: AnyObject)
{
    var is_URL: String = "http://www.cgsapi.com/CGSWebService.asmx"

    var lobj_Request = NSMutableURLRequest(URL: NSURL(string: is_URL)!)
    var session = NSURLSession.sharedSession()
    var err: NSError?

    lobj_Request.HTTPMethod = "POST"
    lobj_Request.HTTPBody = is_SoapMessage.dataUsingEncoding(NSUTF8StringEncoding)
    lobj_Request.addValue("www.cgsapi.com", forHTTPHeaderField: "Host")
    lobj_Request.addValue("text/xml; charset=utf-8", forHTTPHeaderField: "Content-Type")
    lobj_Request.addValue(String(count(is_SoapMessage)), forHTTPHeaderField: "Content-Length")
    //lobj_Request.addValue("223", forHTTPHeaderField: "Content-Length")
    lobj_Request.addValue("http://www.cgsapi.com/GetSystemStatus", forHTTPHeaderField: "SOAPAction")

    var task = session.dataTaskWithRequest(lobj_Request, completionHandler: {data, response, error -> Void in
        println("Response: (response)")
        var strData = NSString(data: data, encoding: NSUTF8StringEncoding)
        println("Body: (strData)")

        if error != nil
        {
            println("Error: " + error.description)
        }

    })
    task.resume()
}

}

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