• C#实现中国天气网JSON接口测试


    接上一篇,经过反复的查看,最终从这篇文章中找到了一个可用的JSON接口,于是研究了一下中国天气网JSON接口的测试:

    和上一篇XML接口测试的原理是一样的,只是需要安装一下Newtonsoft.Json:

    这个就是传说中的JSON.Net!在项目右键点击“管理NuGet程序包”中搜索json.net然后安装即可,等到项目的引用中出现这个东西的时候就可以在程序里using Newtonsoft.Json了。

    还是老套路,不管有用没用,先把接口返回的JSON内容保存到本地一份。这里为了查看方便我直接在控制台打印出来了,方便查看JSON的结构并加以分析:

    通过JSON.Net对字符串进行反序列化(也可以强转),然后对内容加以分析即可,至于想测试,一般是比较值。这里就做一次遍历,不做比较了。代码如下:

    using System;
    using System.Text;
    using Newtonsoft.Json;
    using System.Net;
    using System.IO;
    using Newtonsoft.Json.Linq;
    
    namespace JsonInterfaceTest
    {
        class Program
        {
            static void Main(string[] args)
            {
                test(101010100);
            }
    
            private static void test(int interfaceNumber)
            {
                string url = "http://www.weather.com.cn/adat/cityinfo/" + interfaceNumber + ".html";
                string localContent = Environment.GetFolderPath(Environment.SpecialFolder.DesktopDirectory) + @"	est.txt";
                try
                {
                    WebClient MyWebClient = new WebClient();
                    Byte[] pageData = MyWebClient.DownloadData(url);
                    string pageHtml = Encoding.UTF8.GetString(pageData);
                    using (StreamWriter sw = new StreamWriter(localContent))
                    {
                        sw.WriteLine(pageHtml);
                    }
                    //JObject jObj = JObject.Parse(pageHtml);
                    JObject jObj = JsonConvert.DeserializeObject(pageHtml) as JObject;
                    Console.WriteLine(jObj.ToString());
                    ReadJson(jObj);
                    Console.ReadLine();
                }
                catch (WebException webEx)
                {
                    Console.WriteLine(webEx.Message.ToString());
                }
            }
    
            private static void ReadJson(JObject jObj)
            {
                foreach (var o in jObj)
                {
                    Console.Write(o.Key+":");
                    if (o.Value is JObject)
                    {
                        Console.WriteLine();
                        ReadJson(JsonConvert.DeserializeObject(o.Value.ToString()) as JObject);
                    }
                    else
                    {
                        Console.WriteLine(o.Value);
                    }
                }
            }
        }
    }

    换汤不换药,稍微改一下上面的接口测试程序就可以通过快递接口查快递了(通过快递公司代号和快递单号):

    using System;
    using System.Text;
    using Newtonsoft.Json;
    using System.Net;
    using System.IO;
    using Newtonsoft.Json.Linq;
    
    namespace JsonInterfaceTest
    {
        class Program
        {
            static void Main(string[] args)
            {
                test("zhongtong", 368583049476);
                Console.Read();
            }
    
            private static void test(string  a, long b)
            {
                string url = "http://www.kuaidi100.com/query?type=" + a + "&postid=" + b; 
                string localContent = Environment.GetFolderPath(Environment.SpecialFolder.DesktopDirectory) + @"	est.txt";
                try
                {
                    WebClient MyWebClient = new WebClient();
                    Byte[] pageData = MyWebClient.DownloadData(url);
                    string pageHtml = Encoding.UTF8.GetString(pageData);
                    using (StreamWriter sw = new StreamWriter(localContent))
                    {
                        sw.WriteLine(pageHtml);
                    }
                    JObject jObj = JObject.Parse(pageHtml);
                    //JObject jObj = JsonConvert.DeserializeObject(pageHtml) as JObject;
                    Console.WriteLine(jObj.ToString());
                    ReadJson(jObj);
                    Console.ReadLine();
                }
                catch (WebException webEx)
                {
                    Console.WriteLine(webEx.Message.ToString());
                }
            }
    
            private static void ReadJson(JObject jObj)
            {
                foreach (var o in jObj)
                {
                    Console.Write(o.Key + ":");
                    if (o.Value is JObject)
                    {
                        Console.WriteLine();
                        ReadJson(JsonConvert.DeserializeObject(o.Value.ToString()) as JObject);
                    }
                    else
                    {
                        Console.WriteLine(o.Value);
                    }
                }
            }
        }
    }

    其实用PowerShell脚本来完成这个测试是更加方便的!微软给我们提供了很方便的“ConvertFrom-Json”这一cmdlet来实现我们对Json对象的交互!代码如下:

    function test()
    {
        param($interfaceNumber)
        $url = "http://www.weather.com.cn/adat/cityinfo/" + $interfaceNumber + ".html";
        $jsonObject = Invoke-WebRequest -Uri $url | %{$_.Content} | ConvertFrom-Json
        if($jsonObject.weatherinfo.img1 -eq "d1.gif"){Write-Host "Test pass!" -ForegroundColor Green}
    }
    test -interfaceNumber 101010100

    调用脚本执行效果如下:

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  • 原文地址:https://www.cnblogs.com/LanTianYou/p/5042224.html
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