以下では、1 つの学生/グループ サービスを実行していますが、ここでは、「グループ」を保持するサービスと「学生」を保持するサービスの 2 つのサービスを実行したいと考えています。しかし、生徒をグループに追加したいときに混乱が生じます。どうすればよいcross serviceですか?
たとえば、このコードは学生をグループに追加し、残りの Web サービスはすべて 1 つにします。
public void AddStudentToGroup(string group, string studentID, string firstName, string lastName)
{
var result = Groups.Where(n => String.Equals(n.GroupName, group)).FirstOrDefault();
var result1 = students.Where(n => String.Equals(n.StudentID, studentID)).FirstOrDefault();
if (result != null)
{
result.Groupsz.Add(new Student() { StudentID = studentID, FirstName = firstName, LastName = lastName });
}
if (result1 != null)
{
result1.StudentGroup.Add(new Group() { GroupName = group });
}
}
したがって、私の質問は、サービスをグループを保持するサービスと学生を保持するサービスの 2 つに分割した場合、上記のコードで行ったこと (グループに学生を追加する) を 2 つのサービスにまたがって達成するにはどうすればよいかということです。そして、これを達成しようとして、クライアントはどこに POST しますか?
私の 1 つのサービス全体は以下のコードのように見えますが、グループを取り出して学生情報のみを残し、グループを独自の安らかな Web サービスに変えることを考えています。上記を達成しようとしているときに、あるサービスから別のサービスにどのように通信するのかわかりませんか?
using System;
using System.Collections.Generic;
using System.Text;
using System.ServiceModel;
using System.ServiceModel.Web;
using System.ServiceModel.Description;
using System.IO;
using System.Net;
using System.Drawing;
using System.Runtime.Serialization;
using System.Linq;
namespace WcfServiceLibrary1
{
[ServiceContract(Namespace = "http://tempuri.org")]
[XmlSerializerFormat]
public interface IReceiveData
{
#region DELETE
[OperationContract]
[WebInvoke(Method = "DELETE", BodyStyle = WebMessageBodyStyle.Bare, RequestFormat = WebMessageFormat.Xml, ResponseFormat = WebMessageFormat.Xml, UriTemplate = "/Student/{studentID}")]
void removeStudent(string studentID);
#endregion
#region POST
[OperationContract]
[WebInvoke(Method = "POST", BodyStyle = WebMessageBodyStyle.Bare, RequestFormat = WebMessageFormat.Xml, ResponseFormat = WebMessageFormat.Xml, UriTemplate = "/Group")]
void AddGroup(Group group);
[OperationContract]
[WebInvoke(Method = "POST", BodyStyle = WebMessageBodyStyle.Bare, RequestFormat = WebMessageFormat.Xml, ResponseFormat = WebMessageFormat.Xml, UriTemplate = "/Student")]
void AddStudent(Student student);
[OperationContract]
[WebInvoke(Method = "POST", BodyStyle = WebMessageBodyStyle.Bare, RequestFormat = WebMessageFormat.Xml, ResponseFormat = WebMessageFormat.Xml, UriTemplate = "/AddStudentToGroup/{group}/{studentID}/{firstName}/{lastName}")]
void AddStudentToGroup(string group, string studentID, string firstName, string lastName);
#endregion
#region GET
[OperationContract]
[WebInvoke(Method = "GET", BodyStyle = WebMessageBodyStyle.Wrapped, ResponseFormat = WebMessageFormat.Xml, UriTemplate = "picture/{width}/{height}")]
Stream GetImage(string width, string height);
[OperationContract]
[WebInvoke(Method = "GET", BodyStyle = WebMessageBodyStyle.Bare, RequestFormat = WebMessageFormat.Xml, ResponseFormat = WebMessageFormat.Xml, UriTemplate = "/Student")]
List<Student> GetStudentCollection();
[OperationContract]
[WebInvoke(Method = "GET", BodyStyle = WebMessageBodyStyle.Bare, RequestFormat = WebMessageFormat.Xml, ResponseFormat = WebMessageFormat.Xml, UriTemplate = "/Group")]
List<Group> GetGroups();
[OperationContract]
[WebInvoke(Method = "GET", BodyStyle = WebMessageBodyStyle.Bare, RequestFormat = WebMessageFormat.Xml, ResponseFormat = WebMessageFormat.Xml, UriTemplate = "/GetStudentCollectionByGroup/{anything}")]
List<Group> GetStudentCollectionByGroup(string anything);
[OperationContract]
[WebInvoke(Method = "GET", BodyStyle = WebMessageBodyStyle.Bare, RequestFormat = WebMessageFormat.Xml, ResponseFormat = WebMessageFormat.Xml, UriTemplate = "/GetGroupCollectionByStudent/{groupName}")]
List<Student> GetGroupCollectionByStudent(string groupName);
#endregion
}
#region Data Contacts
[DataContract(Name="Student")]
public class Student
{
public Student()
{
StudentGroup = new List<Group>();
}
[DataMember(Name = "StudentID")]
public string StudentID { get; set; }
[DataMember(Name = "FirstName")]
public string FirstName { get; set; }
[DataMember(Name = "LastName")]
public string LastName { get; set; }
[DataMember(Name = "TimeAdded")]
public DateTime TimeAdded;
public string TimeAddedString
{
get
{
return this.TimeAdded.ToString("dd/MM/yyyy hh:mm:ss");
}
}
public List<Group> StudentGroup { get; set; }
}
[DataContract(Name = "Group")]
public class Group
{
public Group()
{
Groupsz = new List<Student>();
}
[DataMember(Name = "GroupName")]
public string GroupName { get; set; }
public List<Student> Groupsz { get; set; }
}
#endregion
#region Service work
[ServiceBehavior(InstanceContextMode = InstanceContextMode.Single)]
public class Service : IService
{
#region Lists
List<Student> students = new List<Student>();
List<Group> Groups = new List<Group>();
int eCount = 0;
#endregion
#region Do Work
public void AddStudent(Student student)
{
student.StudentID = (++eCount).ToString();
student.TimeAdded = DateTime.Now;
students.Add(student);
}
public void UpdateStudent(Student student)
{
var findStudent = students.Where(s => s.StudentID == student.StudentID).FirstOrDefault();
if (findStudent != null)
{
///findStudent values with student values --- like
findStudent.FirstName = student.FirstName;
findStudent.LastName = student.LastName;
}
}
public void AddGroup(Group group)
{
Groups.Add(group);
}
public void removeStudent(string studentID)
{
students.RemoveAll(s => s.StudentID == studentID);
Groups.ForEach(g => g.Groupsz.RemoveAll(gs => gs.StudentID == studentID));
}
public void AddStudentToGroup(string group, string studentID, string firstName, string lastName)
{
var result = Groups.Where(n => String.Equals(n.GroupName, group)).FirstOrDefault();
var result1 = students.Where(n => String.Equals(n.StudentID, studentID)).FirstOrDefault();
if (result != null)
{
result.Groupsz.Add(new Student() { StudentID = studentID, FirstName = firstName, LastName = lastName });
}
if (result1 != null)
{
result1.StudentGroup.Add(new Group() { GroupName = group });
}
}
public List<Student> GetStudentCollection()
{
return students;
}
public List<Group> GetGroups()
{
return Groups;
}
public List<Student> GetGroupCollectionByStudent(string groupName)
{
List<Student> student = (from g in students
where
(from t in g.StudentGroup where t.GroupName == groupName select t).Count() > 0
select g).ToList();
return student;
}
public List<Group> GetStudentCollectionByGroup(string anything)
{
List<Group> groups = (from g in Groups
where
(from t in g.Groupsz where
string.Equals(t.StudentID, anything, StringComparison.CurrentCultureIgnoreCase)
|| string.Equals(t.FirstName, anything, StringComparison.CurrentCultureIgnoreCase)
|| string.Equals(t.LastName, anything, StringComparison.CurrentCultureIgnoreCase)
select t).Count() > 0
select g).ToList();
return groups;
}
#endregion
}
}
#endregion