实例介绍
【实例简介】
【实例截图】
【实例截图】
【核心代码】
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 | using System;using System.Data;using System.Configuration;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Web.UI.HtmlControls;using Microsoft.Practices.Unity;using Microsoft.Practices.Unity.Configuration;using MyObjects;public partial class _Default : System.Web.UI.Page { private IUnityContainer myContainer = null; private String outMessage = String.Empty; protected void Page_Load(object sender, EventArgs e) { // get the existing populated Unity container from Application object if available Object retrievedContainer = Application["MyContainer"]; if (retrievedContainer == null) { outMessage = "ERROR: Unity Container not populated in Global.asax.<p />"; } else { // found an existing container, so cast it to the correct type myContainer = retrievedContainer as IUnityContainer; outMessage = "Retrieved the populated Unity Container from the Application object.<p />"; } lbl_Output.Text = outMessage; } protected void btn_GetInterface_Click(object sender, EventArgs e) { // resolve an instance of the class registered for IMyInterface IMyInterface myInstance = myContainer.Resolve<IMyInterface>(); // display the result of calling the class method lbl_Output.Text = myInstance.GetObjectStringResult(); } protected void btn_RegisterNew_Click(object sender, EventArgs e) { // register a new default (un-named) mapping with the container // this replaces the existing mapping in the container for IMyInterface myContainer.RegisterType<IMyInterface, MyOtherObject>(); lbl_Output.Text = "Registered a new mapping for IMyInterface to MyOtherObject."; } protected void btn_GetLogger_Click(object sender, EventArgs e) { // get the logger name selected in the list box // this name specifies the type of logger required String loggerType = lst_LoggerType.SelectedValue; // resolve an instance of the appropriate class registered for ILogger // using the specified mapping name (may be empty for the default mapping) ILogger myInstance = myContainer.Resolve<ILogger>(loggerType); // get the logger to write a message and display the result lbl_Output.Text = myInstance.WriteMessage("HELLO UNITY!"); } protected void btn_ConstructorInjection_Click(object sender, EventArgs e) { // resolve an instance of the concrete MyObjectWithInjectedLogger class // this class contains a reference to ILogger in the constructor parameters MyObjectWithInjectedLogger myInstance = myContainer.Resolve<MyObjectWithInjectedLogger>(); // get the injected logger to write a message and display the result lbl_Output.Text = myInstance.GetObjectStringResult(); } protected void btn_ReloadContainer_Click(object sender, EventArgs e) { // reload the existing Unity container configuration from the Web.config file UnityConfigurationSection section = (UnityConfigurationSection)ConfigurationManager.GetSection("unity"); section.Containers["containerOne"].Configure(myContainer); Application["MyContainer"] = myContainer; lbl_Output.Text = "Reloaded the original Unity Container configuration."; }} |
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