// 同じソース内に複数の問題の解答も書いているので、Employee2というクラスを定義して、それを利用している。
private static void Exercise1_4(string file)
{
var emps = new Employee2[] {
new Employee2 {
Id = 123,
Name = "出井 秀行",
HireDate = new DateTime(2001, 5, 10)
},
new Employee2 {
Id = 139,
Name = "大橋 孝仁",
HireDate = new DateTime(2004, 12, 1)
},
};
using (var stream = new FileStream(file, FileMode.Create,
FileAccess.Write)) {
// DateTimeの書式を変更することもできる。
var serializer = new DataContractJsonSerializer(
emps.GetType(),
new DataContractJsonSerializerSettings {
DateTimeFormat = new DateTimeFormat("yyyy-MM-dd'T'HH:mm:ssZ")
}
);
serializer.WriteObject(stream, emps);
}
}
static void Main(string[] args)
{
var employee = new Employee {
Id = 1, Name = "James", HireDate = new DateTime(1980, 2, 28)
};
// 12.1.1
var settings = new XmlWriterSettings
{
Encoding = new UTF8Encoding(false),
Indent = true,
IndentChars = " ",
};
using (var writer = XmlWriter.Create("employee.xml", settings))
{
var serializer = new XmlSerializer(employee.GetType());
serializer.Serialize(writer, employee);
}
// 12.1.2
var employees = new List <Employee> {
};
employees.Add(employee);
employees.Add(new Employee {
Id = 2, Name = "Kirby", HireDate = new DateTime(2018, 2, 28)
});
using (var writer = XmlWriter.Create("employees.xml", settings))
{
var serializer = new DataContractSerializer(employees.GetType());
serializer.WriteObject(writer, employees);
}
// 12.1.3
using (XmlReader reader = XmlReader.Create("employees.xml"))
{
var serializer = new DataContractSerializer(typeof(Employee[]));
var desirializedEmployees = serializer.ReadObject(reader) as Employee[];
desirializedEmployees.ToList()
.ForEach(e => Console.WriteLine($"{e.Id.ToString()}\t{e.Name}\t{e.HireDate.ToString()}"));
}
// 12.1.4
var employees2 = new Employee2[]
{
new Employee2 {
Id = 3, Name = "Mai", HireDate = new DateTime(2016, 9, 4)
},
new Employee2 {
Id = 4, Name = "Azrael", HireDate = new DateTime(2016, 9, 7)
},
};
using (var stream = new FileStream("enployee2.json", FileMode.Create, FileAccess.Write))
{
var serializer = new DataContractJsonSerializer(employees2.GetType());
serializer.WriteObject(stream, employees2);
}
}