超级管理员现在可在“组织与权限 → 运维与审计 → 系统性能”中直接查看：
请求量、5xx 比例、HTTP/数据库 P95 请求速率与延迟趋势 最慢接口排行 慢查询与数据库查询排行 Grafana 原始调用链入口
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@@ -7,6 +7,7 @@ using Jiaowu.Api.Domain.System;
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using Jiaowu.Api.Infrastructure.BackgroundJobs;
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using Jiaowu.Api.Infrastructure.Caching;
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using Jiaowu.Api.Infrastructure.Operations;
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using Jiaowu.Api.Infrastructure.Observability;
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using Jiaowu.Api.Infrastructure.Persistence;
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using Microsoft.AspNetCore.Authorization;
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using Microsoft.AspNetCore.Hosting;
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@@ -201,6 +202,7 @@ public sealed class OperationsControllerTests
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var services = new ServiceCollection()
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.AddLogging()
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.AddMemoryCache()
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.BuildServiceProvider();
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var logger = services.GetRequiredService<
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ILogger<DatabaseBackupService>>();
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@@ -224,10 +226,19 @@ public sealed class OperationsControllerTests
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configuration,
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environment,
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logger);
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var performance = new PerformanceReportService(
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new HttpClient(),
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services.GetRequiredService<
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Microsoft.Extensions.Caching.Memory.IMemoryCache>(),
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new PerformanceReportingOptions(),
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new ObservabilityOptions(),
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services.GetRequiredService<
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ILogger<PerformanceReportService>>());
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var controller = new OperationsController(
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db,
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health,
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backups,
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performance,
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operationsOptions);
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return new OperationsFixture(services, db, controller, backups);
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}
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@@ -0,0 +1,188 @@
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using System.Net;
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using System.Text;
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using Jiaowu.Api.Infrastructure.Observability;
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using Microsoft.Extensions.Caching.Memory;
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using Microsoft.Extensions.Logging.Abstractions;
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namespace Jiaowu.Api.Tests;
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public sealed class PerformanceReportServiceTests
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{
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[Fact]
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public async Task Configured_source_returns_cached_native_report()
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{
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var handler = new PrometheusHandler();
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using var httpClient = new HttpClient(handler);
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using var cache = new MemoryCache(new MemoryCacheOptions());
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var service = new PerformanceReportService(
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httpClient,
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cache,
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new PerformanceReportingOptions
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{
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Enabled = true,
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PrometheusBaseUrl = "https://prometheus.test/",
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BearerToken = "read-only-token",
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GrafanaBaseUrl = "https://grafana.test/",
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CacheSeconds = 30
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},
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new ObservabilityOptions { ServiceName = "jiaowu-api" },
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NullLogger<PerformanceReportService>.Instance);
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var first = await service.GetAsync("1h", CancellationToken.None);
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var second = await service.GetAsync("1h", CancellationToken.None);
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Assert.Equal("ready", first.Status);
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Assert.Equal("prometheus", first.DataSource);
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Assert.Equal("https://grafana.test/", first.DashboardUrl);
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Assert.NotNull(first.Headline);
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Assert.Equal(5, first.Headline.RequestCount);
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Assert.Equal(2, first.Timeline.Count);
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Assert.Equal(
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"/api/timetables/classes/{classId}",
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Assert.Single(first.Endpoints).Name);
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Assert.Equal(
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"Timetable.LoadScheduleEntries",
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Assert.Single(first.DatabaseQueries).Name);
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Assert.Same(first, second);
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Assert.Equal(14, handler.RequestCount);
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Assert.True(handler.AllRequestsAuthenticated);
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}
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[Fact]
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public async Task Missing_source_returns_directed_empty_state()
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{
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using var cache = new MemoryCache(new MemoryCacheOptions());
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var service = new PerformanceReportService(
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new HttpClient(new RejectingHandler()),
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cache,
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new PerformanceReportingOptions(),
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new ObservabilityOptions(),
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NullLogger<PerformanceReportService>.Instance);
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var report = await service.GetAsync("24h", CancellationToken.None);
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Assert.Equal("not_configured", report.Status);
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Assert.Contains("Prometheus", report.Detail);
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Assert.Empty(report.Timeline);
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}
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[Fact]
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public async Task Unsupported_range_is_rejected_before_querying_source()
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{
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using var cache = new MemoryCache(new MemoryCacheOptions());
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var service = new PerformanceReportService(
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new HttpClient(new RejectingHandler()),
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cache,
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new PerformanceReportingOptions(),
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new ObservabilityOptions(),
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NullLogger<PerformanceReportService>.Instance);
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await Assert.ThrowsAsync<ArgumentOutOfRangeException>(() =>
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service.GetAsync("30d", CancellationToken.None));
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await Assert.ThrowsAsync<ArgumentOutOfRangeException>(() =>
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service.GetAsync(null, CancellationToken.None));
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}
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[Fact]
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public async Task Source_timeout_returns_unavailable_report()
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{
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using var cache = new MemoryCache(new MemoryCacheOptions());
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var service = new PerformanceReportService(
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new HttpClient(new TimeoutHandler()),
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cache,
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new PerformanceReportingOptions
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{
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Enabled = true,
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PrometheusBaseUrl = "https://prometheus.test/"
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},
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new ObservabilityOptions(),
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NullLogger<PerformanceReportService>.Instance);
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var report = await service.GetAsync("1h", CancellationToken.None);
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Assert.Equal("unavailable", report.Status);
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Assert.Contains("暂时不可用", report.Detail);
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}
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private sealed class PrometheusHandler : HttpMessageHandler
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{
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private int requestCount;
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private int authenticatedCount;
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public int RequestCount => requestCount;
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public bool AllRequestsAuthenticated =>
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authenticatedCount == requestCount;
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protected override Task<HttpResponseMessage> SendAsync(
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HttpRequestMessage request,
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CancellationToken cancellationToken)
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{
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Interlocked.Increment(ref requestCount);
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if (request.Headers.Authorization?.Scheme == "Bearer" &&
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request.Headers.Authorization.Parameter == "read-only-token")
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{
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Interlocked.Increment(ref authenticatedCount);
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}
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var isRange = request.RequestUri!.AbsolutePath.EndsWith(
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"/query_range",
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StringComparison.Ordinal);
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var now = DateTimeOffset.UtcNow.ToUnixTimeSeconds();
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var json = isRange
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? $$"""
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{
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"status": "success",
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"data": {
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"resultType": "matrix",
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"result": [{
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"metric": {},
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"values": [
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[{{now - 60}}, "2"],
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[{{now}}, "3"]
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]
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}]
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}
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}
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"""
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: $$"""
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{
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"status": "success",
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"data": {
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"resultType": "vector",
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"result": [{
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"metric": {
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"http_route": "/api/timetables/classes/{classId}",
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"db_query_name": "Timetable.LoadScheduleEntries"
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},
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"value": [{{now}}, "5"]
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}]
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}
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}
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""";
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return Task.FromResult(new HttpResponseMessage(HttpStatusCode.OK)
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{
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Content = new StringContent(
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json,
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Encoding.UTF8,
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"application/json")
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});
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}
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}
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private sealed class RejectingHandler : HttpMessageHandler
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{
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protected override Task<HttpResponseMessage> SendAsync(
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HttpRequestMessage request,
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CancellationToken cancellationToken) =>
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throw new InvalidOperationException(
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"未配置时不应访问外部数据源。");
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}
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private sealed class TimeoutHandler : HttpMessageHandler
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{
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protected override Task<HttpResponseMessage> SendAsync(
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HttpRequestMessage request,
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CancellationToken cancellationToken) =>
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throw new TaskCanceledException("Prometheus query timed out.");
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}
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}
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