拱拱Lite开发（1）：调用三翼API实现登陆、课表获取、饭卡信息……

拱拱Lite是我UWP上的第一个作品，我也很乐意分享在开发时的收获，因此写下这一系列的文章，也算作一种积累吧，期望能有所帮助~

（1）从官方文档开始

{"code":0,"msg":"成功","data":{"1":{"2":[{"course":"工程经济","location":"兴教楼C401","teacher":"刘兴旺副教授","week":"9,10,11,12,13,14,15,16","week_string":"9-16(周)","section_length":"2","section_start":"3","section_end":"4"}],"3":[{"course":"化工原理Ⅲ","location":"逸夫楼-409","teacher":"李勇飞讲师（高校）","week":"1,2,3,4,5,6,7,8,9,10,11","week_string":"1-11(周)","section_length":"2","section_start":"5","section_end":"6"}],"4":[{"course":"环境工程学3","location":"逸夫楼-402","teacher":"陈跃辉讲师（高校）","week":"1,2,3,4,5,6,7,8,9,10,11,12","week_string":"1-12(周)","section_length":"2","section_start":"7","section_end":"8"}]},"2":{"1":[{"course":"概率论Ⅲ","location":"计算中心B202","teacher":"刘金龙","week":"1,2,3,4,5,6,7,8","week_string":"1-8(周)","section_length":"2","section_start":"1","section_end":"2"}],"2":[{"course":"环境监测Ⅱ","location":"一教楼-319","teacher":"汪形艳副教授","week":"1,2,3,4,5,6,7,8","week_string":"1-8(周)","section_length":"2","section_start":"3","section_end":"4"}]},"3":{"1":[{"course":"化工原理Ⅲ","location":"逸夫楼-409","teacher":"李勇飞讲师（高校）","week":"1,2,3,4,5,6,7,8,9,10,11","week_string":"1-11(周)","section_length":"2","section_start":"1","section_end":"2"}],"3":[{"course":"大学体育4","location":"体育馆","teacher":"谭新莉教授","week":"1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16","week_string":"1-16(周)","section_length":"2","section_start":"5","section_end":"6"}]},"4":{"1":[{"course":"环保装备腐蚀与防护","location":"一教楼-403","teacher":"陈洪波讲师（高校）","week":"9,10,11,12,13,14,15","week_string":"9-15(周)","section_length":"2","section_start":"1","section_end":"2"},{"course":"环保设备CAD技术","location":"计算中心B402","teacher":"陈洪波讲师（高校）","week":"1,2,3,4,5,6,7,8","week_string":"1-8(周)","section_length":"2","section_start":"1","section_end":"2"}],"3":[{"course":"环境监测Ⅱ","location":"一教楼-319","teacher":"汪形艳副教授","week":"1,2,3,4,5,6,7,8","week_string":"1-8(周)","section_length":"2","section_start":"5","section_end":"6"}],"4":[{"course":"概率论Ⅲ","location":"逸夫楼-110","teacher":"刘金龙","week":"1,2,3,4,5,6,7,8","week_string":"1-8(周)","section_length":"2","section_start":"7","section_end":"8"}],"5":[{"course":"化工原理Ⅲ","location":"逸夫楼-409","teacher":"李勇飞讲师（高校）","week":"1,2,3,4,5,6,7,8,9,10","week_string":"1-10(周)","section_length":"2","section_start":"9","section_end":"10"}]},"5":{"1":[{"course":"环保设备CAD技术","location":"计算中心B402","teacher":"陈洪波讲师（高校）","week":"1,2,3,4,5,6,7,8","week_string":"1-8(周)","section_length":"2","section_start":"1","section_end":"2"}],"2":[{"course":"环境工程学3","location":"逸夫楼-402","teacher":"陈跃辉讲师（高校）","week":"1,2,3,4,5,6,7,8,9,10,11,12","week_string":"1-12(周)","section_length":"2","section_start":"3","section_end":"4"}],"3":[{"course":"环保装备腐蚀与防护","location":"一教楼-403","teacher":"陈洪波讲师（高校）","week":"9,10,11,12,13,14,15","week_string":"9-15(周)","section_length":"2","section_start":"5","section_end":"6"}]}}}

（2）用C#发送GET请求并得到JSON

public async static Task GetJson(string ID, string Passwords)
{
var http = new HttpClient();
string url = String.Format("https://api.sky31.com/edu-new/course.php?role=201213121&hash=0267cc37887e59dqwe2312ddfwe1&sid={0}&password={1}&style=3&token=HTTP/1.1", ID, Passwords);
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url); //创建一个请求示例
var response = await http.GetAsync(String.Format(url));//获取响应，即发送请求
var result = await response.Content.ReadAsStringAsync();
return result;
}

（3）处理JSON

public class CourseManager
{public async static Task Manager(string ID, string Passwords)
{
var result = await GetJson(ID,Passwords);//result中存储的就是获得的JSON
using (var ms = new MemoryStream(Encoding.Unicode.GetBytes(result)))
{
DataContractJsonSerializer deseralizer = new DataContractJsonSerializer(typeof(RootObject));
RootObject model = (RootObject)deseralizer.ReadObject(ms);// //反序列化ReadObject
return model;
} 
}

[DataContract]
public class RootObject//对应{"code":0,"msg":"成功","data":{}}
{
[DataMember]
public int code { get; set; }
[DataMember]
public string msg { get; set; }
[DataMember]
public List<>> data { get; set; }//应为JSON里data数据是嵌套了两层，所以这里我们嵌套List
}
[DataContract]
public class DataObject//对应{"1":[{"course":"环保装备腐蚀与防护","location":"一教楼-403","teacher":"陈洪波讲师（高校）",……
{
[DataMember]
public string course { get; set; }
[DataMember]
public string location { get; set; }
[DataMember]
public string teacher { get; set; }
[DataMember]
public string week { get; set; }
[DataMember]
public string week_string { get; set; }
[DataMember]
public string section_length { get; set; }
[DataMember]
public string section_start { get; set; }
[DataMember]
public string section_end { get; set; }
[DataMember]
public int day { get; set; }
}
}

（4）最后一步：呈现数据

现在我们已经把获得的数据存入对应类的实例中了，最后要做的就剩下把数据呈现在控件上，可以直接赋值，也可以用数据绑定的方式。这里我把值传入到绑定到控件的CourseModel：

CourseManager.RootObject courses = await CourseManager.Manager(IDTextBox.Text, IDPasswordBox.Password);
Int n=0;
If(courses.code==0)
{
foreach (List TheDayCourse in classes.data)
{
if (TheDayCourse[n] != null)
{
foreach (var course in TheDayCourse)
{
var addCourse = new CourseModel()
{
Course = TheDayCourse[n].course,
Teacher = TheDayCourse[n].teacher,
Location = TheDayCourse[n].location,
Day = TheDayCourse[n].day,
Week = WeekstringCut(TheDayCourse[n].week_string),
Start = int.Parse(TheDayCourse[n].section_start),
End = int.Parse(TheDayCourse[n].section_end)
};
database.AddData(addCourse);
n++;
}
}
}