55 lines
1.4 KiB
Plaintext
55 lines
1.4 KiB
Plaintext
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ASP.NET CORE中间件相关扩展。
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中间件基类`MiddlewareBase`
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可以自行继承并实现自己的中间件类。例如：
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```
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/// <summary>
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/// 测试中间件
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/// </summary>
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public class MiddlewareTest:MiddlewareBase
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{
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public MiddlewareTest(RequestDelegate next) : base(next) {
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}
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/// <summary>
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/// 在调用next之后执行
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/// </summary>
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/// <param name="context">请求上下文</param>
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public async override void InvokeNextAfter(HttpContext context) {
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await context.Response.WriteAsync("\nInvokeNextAfter");
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}
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/// <summary>
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/// 在调用next之前执行
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/// </summary>
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/// <param name="context">请求上下文</param>
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public async override void InvokeNextBefore(HttpContext context) {
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await context.Response.WriteAsync("InvokeNextBefore\n");
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}
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}
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```
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然后修改setup.cs
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```
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public void Configure(IApplicationBuilder app,IWebHostEnvironment env) {
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if(env.IsDevelopment()) {
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app.UseDeveloperExceptionPage();
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}
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app.UseRouting();
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app.UseMiddleware<MiddlewareTest>();
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app.UseEndpoints(endpoints => {
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endpoints.MapGet("/",async context => {
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await context.Response.WriteAsync("Hello World!");
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});
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});
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}
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```
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浏览器发送请求后：
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```
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InvokeNextBefore
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Hello World!
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InvokeNextAfter
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```
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