diff --git a/Docs/1.2.使用准则.ipynb b/Docs/1.2.使用准则.ipynb
index e9e3127..22d9485 100644
--- a/Docs/1.2.使用准则.ipynb
+++ b/Docs/1.2.使用准则.ipynb
@@ -26,7 +26,7 @@
},
{
"cell_type": "code",
- "execution_count": 1,
+ "execution_count": 2,
"metadata": {
"dotnet_interactive": {
"language": "csharp"
@@ -712,7 +712,7 @@
},
{
"cell_type": "code",
- "execution_count": null,
+ "execution_count": 29,
"metadata": {
"dotnet_interactive": {
"language": "csharp"
@@ -724,7 +724,24 @@
"languageId": "polyglot-notebook"
}
},
- "outputs": [],
+ "outputs": [
+ {
+ "data": {
+ "text/html": [
+ "<div><div></div><div></div><div><strong>Installed Packages</strong><ul><li><span>Microsoft.Extensions.Http.Resilience, 8.5.0</span></li><li><span>Polly, 8.4.0</span></li></ul></div></div>"
+ ]
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ },
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "共有9193个字符\r\n"
+ ]
+ }
+ ],
"source": [
"#r \"nuget:Polly\"\n",
"#r \"nuget:Microsoft.Extensions.Http.Resilience\"\n",
diff --git a/Docs/1.3.0.基础使用.管理客户端.ipynb b/Docs/1.3.0.基础使用.管理客户端.ipynb
index 3f5e1eb..ed547b1 100644
--- a/Docs/1.3.0.基础使用.管理客户端.ipynb
+++ b/Docs/1.3.0.基础使用.管理客户端.ipynb
@@ -20,7 +20,31 @@
"source": [
"HttpClient 旨在实例化一次，并在应用程序的整个生命周期内重复使用。\n",
"\n",
- "为实现复用，HttpClient类库默认使用连接池和请求管道，可以再结合IoC容器、工厂模式(提供了IHttpClientFactory类库)、复原库Polly"
+ "为实现复用，HttpClient类库默认使用连接池和请求管道，可以手动管理(连接池、配置管道、使用Polly); 结合IoC容器、工厂模式(提供了IHttpClientFactory类库)、复原库Polly,可以更加方便、完善的使用,这也是推荐的方法。"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "metadata": {
+ "dotnet_interactive": {
+ "language": "csharp"
+ },
+ "polyglot_notebook": {
+ "kernelName": "csharp"
+ },
+ "vscode": {
+ "languageId": "polyglot-notebook"
+ }
+ },
+ "outputs": [],
+ "source": [
+ "//全局设置，行运行一次，为后续准备\n",
+ "#r \"nuget:System.Net.Http.Json\"\n",
+ "#r \"nuget:Microsoft.Extensions.DependencyInjection\"\n",
+ "\n",
+ "global using System.Net.Http;\n",
+ "global using System.Net.Http.Headers;\n"
]
},
{
@@ -40,6 +64,64 @@
"## 1、手动管理：直接实例化-强烈不推荐"
]
},
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "下面这种每次使用都实例化的用法是最常见、最`不推荐的`：\n",
+ "\n",
+ "因为HttpClient刚推出时不成熟及微软官方文档的示例代码是这种用法，再加上这种是最简单方便的使用方法，就造成很多人使用这种用法。\n",
+ "这种方法有如下缺点：\n",
+ "+ 1. 每次使用都实例化，造成性能开销大、容易内存泄露；\n",
+ "+ 2. 并发量大、请求频繁时：网络端口会被耗尽 `Using包HttpClient,也只是在应用进程中释放了HttpClient实例，但http请求/响应是跨操作系统和网络的，而系统及网络问题在进程之上，不是进程所能处理的。`\n",
+ " \n",
+ "优点：\n",
+ "+ 1. 使用简单，好学易用；\n",
+ "+ 2. 并发量小且请求不频繁时，问题不大；"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "metadata": {
+ "dotnet_interactive": {
+ "language": "csharp"
+ },
+ "polyglot_notebook": {
+ "kernelName": "csharp"
+ },
+ "vscode": {
+ "languageId": "polyglot-notebook"
+ }
+ },
+ "outputs": [],
+ "source": [
+ "/*\n",
+ " 每次请求都实例化：并发量大、请求频繁进会耗尽套接字端口\n",
+ "*/\n",
+ "{ \n",
+ " using(var client = new HttpClient())\n",
+ " {\n",
+ " //发送请求\n",
+ " var response = await client.GetAsync(\"http://localhost\");\n",
+ " response.EnsureSuccessStatusCode();\n",
+ " }\n",
+ "\n",
+ " //显示句柄\n",
+ " var displayValue = display($\"第 1 次请求，成功！\");\n",
+ "\n",
+ " for(int i=0;i<10;i++)\n",
+ " {\n",
+ " using(var client = new HttpClient())\n",
+ " {\n",
+ " var response = await client.GetAsync(\"http://localhost\");\n",
+ " response.EnsureSuccessStatusCode();\n",
+ " displayValue.Update($\"第 {i+1} 次/ 共 10 次请求，成功！\");\n",
+ " }\n",
+ " }\n",
+ "}"
+ ]
+ },
{
"cell_type": "markdown",
"metadata": {},
@@ -58,7 +140,7 @@
"cell_type": "markdown",
"metadata": {},
"source": [
- "## 4、手动管理 + 可复原(Polly)"
+ "## 4、手动管理：可复原(Polly)请求"
]
},
{
diff --git a/HttpClientStudy.Core/HttpError.cs b/HttpClientStudy.Core/HttpError.cs
index 72ea0ed..6a19307 100644
--- a/HttpClientStudy.Core/HttpError.cs
+++ b/HttpClientStudy.Core/HttpError.cs
@@ -1,6 +1,7 @@
using HttpClientStudy.Config;
using Microsoft.Extensions.Options;
+using System.Net.Http.Json;
namespace HttpClientStudy.Core
{