C#综合揭秘——细说进程、应用程序域与上下文之间的关系

1         static void Main(string[] args)
2         {
3             Process process = Process.Start("notepad.exe","File.txt");
4             Thread.Sleep(2000);
5             process.Kill();
6         }

 1         static void Main(string[] args)
 2         {
 3             var processList = Process.GetProcesses()
 4                 .OrderBy(x=>x.Id)
 5                 .Take(10);
 6             foreach (var process in processList)
 7                 Console.WriteLine(string.Format("ProcessId is:{0} \t ProcessName is:{1}",
 8                     process.Id, process.ProcessName));
 9             Console.ReadKey();
10         }

 1         static void Main(string[] args)
 2         {
 3             try
 4             {
 5                 var process = Process.GetProcessById(1772);
 6                 Console.WriteLine("Process name is:" + process.ProcessName);
 7             }
 8             catch (ArgumentException ex)
 9             {
10                 Console.WriteLine("Process is nothing!");
11             }
12             Console.ReadKey();
13         }

注意：如果不能找到当前ID的进程，系统就会抛出ArgumentException异常。所以使用方法 GetProcessById 获取进程时应该包含在 try{...} catch{..} 之内。

1         static void Main(string[] args)
2         {
3             var moduleList = Process.GetCurrentProcess().Modules;
4             foreach (System.Diagnostics.ProcessModule module in moduleList)
5                 Console.WriteLine(string.Format("{0}\n  URL:{1}\n  Version:{2}",
6                     module.ModuleName,module.FileName,module.FileVersionInfo.FileVersion));
7             Console.ReadKey();
8         }

1         static void Main(string[] args)
2         {
3             var appDomain = AppDomain.CreateDomain("NewAppDomain");
4             appDomain.Load("Model");
5             foreach (var assembly in appDomain.GetAssemblies())
6                 Console.WriteLine(string.Format("{0}\n----------------------------",
7                     assembly.FullName));
8             Console.ReadKey();
9         }

注意：当加载程序集后，就无法把它从AppDomain中卸载，只能把整个AppDomain卸载。

 1         static void Main(string[] args)
 2         {
 3             //新建名为NewAppDomain的应用程序域
 4             AppDomain newAppDomain = AppDomain.CreateDomain("NewAppDomain");
 5             //建立AssemblyLoad事件处理方法
 6             newAppDomain.AssemblyLoad +=
 7                 (obj, e) =>
 8                 {
 9                     Console.WriteLine(string.Format("{0} is loading!", e.LoadedAssembly.GetName()));
10                 };
11             //建立DomainUnload事件处理方法
12             newAppDomain.DomainUnload +=
13                 (obj, e) =>
14                 {
15                     Console.WriteLine("NewAppDomain Unload!");
16                 };
17             //加载程序集
18             newAppDomain.Load("Model");
19             //模拟操作
20             for (int n = 0; n 21                 Console.WriteLine("  Do Work.......!");
22              //卸载AppDomain
23             AppDomain.Unload(newAppDomain);
24             Console.ReadKey();
25         }

 1 namespace Test
 2 {
 3      public class Program
 4     {
 5          static void Main(string[] args)
 6          {
 7              var person=(Person)AppDomain.CurrentDomain
 8                           .CreateInstance("Model","Model.Person").Unwrap();
 9              person.ID = 1;
10              person.Name = "Leslie";
11              person.Age = 29;
12              Console.WriteLine(string.Format("{0}‘s age is {1}!",person.Name,person.Age));
13              Console.ReadKey();
14          }
15     }
16 }
17 
18 namespace Model
19 {
20     public class Person
21     {
22           public int ID
23           {
24               get;
25               set;
26           }
27           public string Name
28           {
29                get;
30                set;
31           }
32           public int Age
33           {
34                get;
35                set;
36           }
37      }
38 }

 1     class Program
 2     {
 3         public class Example
 4         {
 5             public void Test()
 6             {
 7                 ContextMessage("Example Test\n");
 8             }
 9             //访问上下文绑定对象测试
10             public void Sync(ContextBound contextBound)
11             {
12                 contextBound.Test("Example call on contextBound\n");
13             }
14         }
15 
16         [Synchronization]
17         public class ContextBound:ContextBoundObject
18         {
19             public void Test(string message)
20             {
21                 ContextMessage(message);
22             }
23         }
24 
25         static void Main(string[] args)
26         {
27             Example example = new Example();
28             example.Test();
29             ContextBound contextBound = new ContextBound();
30             contextBound.Test("ContentBound Test\n");
31             example.Sync(contextBound);
32             Console.ReadKey();
33         }
34 
35         //显示上下文信息
36         public static void ContextMessage(string data)
37         {
38             Context context = Thread.CurrentContext;
39             Console.WriteLine(string.Format("{0}ContextId is {1}", data, context.ContextID));
40             foreach (var prop in context.ContextProperties)
41                 Console.WriteLine(prop.Name);
42             Console.WriteLine();
43         }
44     }

 1         static void Main(string[] args)
 2         {
 3             Console.WriteLine("CurrentAppDomain start!");
 4             //建立新的应用程序域对象
 5             AppDomain newAppDomain = AppDomain.CreateDomain("newAppDomain");
 6             //绑定CrossAppDomainDelegate的委托方法
 7             CrossAppDomainDelegate crossAppDomainDelegate=new CrossAppDomainDelegate(MyCallBack);
 8             //绑定DomainUnload的事件处理方法
 9             newAppDomain.DomainUnload += (obj, e) =>
10             {
11                 Console.WriteLine("NewAppDomain unload!");
12             };
13             //调用委托
14             newAppDomain.DoCallBack(crossAppDomainDelegate);
15             AppDomain.Unload(newAppDomain) ;
16             Console.ReadKey();
17         }
18 
19         static public void MyCallBack()
20         {
21             string name = AppDomain.CurrentDomain.FriendlyName;
22             for(int n=0;n23             Console.WriteLine(string.Format( "  Do work in {0}........" , name));
24         }

1         static void Main(string[] args)
2         {
3             var message = string.Format("  CurrentThreadID is:{0}\tAppDomainID is:{1}",
4                 Thread.CurrentThread.ManagedThreadId, AppDomain.CurrentDomain.Id);
5             Console.WriteLine(message);
6             Console.Read();
7         }

 1         static void Main(string[] args)
 2         {
 3             //当前应用程序域信息
 4             Console.WriteLine("CurrentAppDomain start!");
 5             ShowMessage();
 6             
 7             //建立新的应用程序域对象
 8             AppDomain newAppDomain = AppDomain.CreateDomain("newAppDomain");
 9             //在新的应用程序域中执行Example.exe
10             newAppDomain.ExecuteAssembly("Example.exe");
11 
12             AppDomain.Unload(newAppDomain);
13             Console.ReadKey();
14         }
15 
16         public static void ShowMessage()
17         {
18             var message = string.Format("  CurrentThreadID is:{0}\tAppDomainID is:{1}",
19                 Thread.CurrentThread.ManagedThreadId, AppDomain.CurrentDomain.Id);
20             Console.WriteLine(message);
21         }

 1     class Program
 2     {
 3         [Synchronization]
 4         public class ContextBound : ContextBoundObject
 5         {
 6             public void Test()
 7             {
 8                 ShowMessage();
 9             }
10         }
11 
12         static void Main(string[] args)
13         {
14             //当前应用程序域信息
15             Console.WriteLine("CurrentAppDomain start!");
16             ShowMessage();
17 
18             //在上下文绑定对象中运行线程
19             ContextBound contextBound = new ContextBound();
20             contextBound.Test();
21             Console.ReadKey();
22         }
23 
24         public static void ShowMessage()
25         {
26             var message = string.Format("  CurrentThreadID is:{0}\tContextID is:{1}",
27                  Thread.CurrentThread.ManagedThreadId, Thread.CurrentContext.ContextID);
28             Console.WriteLine(message);
29         }
30     }