feat(AjaxService): redesign AjaxService (#4570)

* refactor: 重构 AjaxService 服务

* refactor: 移除 Ajax 组件

* test: 完善单元测试

Author: ArgoZhang

src/BootstrapBlazor/Components/Ajax/Ajax.cs

@@ -104,9 +104,6 @@ private static RenderFragment RenderComponents() => builder =>
         builder.OpenComponent<Dialog>(0);
         builder.CloseComponent();
 
-        builder.OpenComponent<Ajax>(1);
-        builder.CloseComponent();
-
         builder.OpenComponent<SweetAlert>(2);
         builder.CloseComponent();
 

src/BootstrapBlazor/Components/Ajax/AjaxService.cs

@@ -0,0 +1,39 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the Apache 2.0 License
+// See the LICENSE file in the project root for more information.
+// Maintainer: Argo Zhang([email protected]) Website: https://www.blazor.zone
+
+using System.Text.Json;
+
+namespace BootstrapBlazor.Components;
+
+/// <summary>
+/// Ajax 服务类
+/// </summary>
+public class AjaxService(IJSRuntime jSRuntime)
+{
+    [NotNull]
+    private JSModule? _module = null;
+
+    private Task<JSModule> LoadModule() => jSRuntime.LoadModule("./_content/BootstrapBlazor/modules/ajax.js");
+
+    /// <summary>
+    /// 调用Ajax方法发送请求
+    /// </summary>
+    public async Task<JsonDocument?> InvokeAsync(AjaxOption option, CancellationToken token = default)
+    {
+        _module ??= await LoadModule();
+        return await _module.InvokeAsync<JsonDocument?>("execute", token, option);
+    }
+
+    /// <summary>
+    /// 调用 Goto 方法跳转其他页面
+    /// </summary>
+    /// <param name="url"></param>
+    /// <param name="token"></param>
+    public async Task Goto(string url, CancellationToken token = default)
+    {
+        _module ??= await LoadModule();
+        await _module.InvokeVoidAsync("goto", token, url);
+    }
+}

src/BootstrapBlazor/Components/BaseComponents/BootstrapBlazorRoot.razor.cs

@@ -22,9 +22,12 @@ public async Task Ajax_Test()
 
         var service = Context.Services.GetRequiredService<AjaxService>();
         await service.InvokeAsync(option);
+    }
 
-        Context.RenderComponent<Ajax>();
-        await service.InvokeAsync(option);
+    [Fact]
+    public async Task Goto_Test()
+    {
+        var service = Context.Services.GetRequiredService<AjaxService>();
         await service.Goto("http://www.blazor.zone");
     }
 }