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@ -11,7 +11,22 @@
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}
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},
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"source": [
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"# HttpClient 使用原则"
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"# HttpClient 使用Json数据"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"现代Web中，Json是最常用的前后端交互数据。\n",
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"\n",
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"手动处理Json数据，也是可以的，只不过需要服务端配合、比较繁杂，与使用框架提供的相关类库操作并没有本质区别，只不过使用框架更方便、稳定！\n",
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"\n",
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".Net HttpClient 提供了一流的Json数据支持：\n",
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"\n",
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"+ System.Net.Http.Json 提供了序列化和反序列化 Json 数据功能\n",
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"+ Microsoft.Extensions.Http 扩展库，提供了发送请求和接收响应时，对Json数据的扩展支持\n",
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"+ Microsoft.Net.Http.Headers 提供请求或响应头的一些枚举及帮功能"
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]
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},
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{
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@ -28,7 +43,260 @@
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}
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},
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"source": [
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"## 1、复用"
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"## 初始化"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {
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"polyglot_notebook": {
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"kernelName": "csharp"
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},
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"vscode": {
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"languageId": "polyglot-notebook"
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}
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},
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"outputs": [],
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"source": [
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"#!import \"./Ini.ipynb\""
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"## 手动管理 Json 数据"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"借助 `System.Net.Http.Json` 或者 `Newtonsoft.Json`类库，手动管理(序列化、反序列化等)Json数据也是可以的。"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"+ 在请求中使用Json数据"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"> 在请求中使用json数据，基本就是指在请求体中使用json。url参数、路由参数、请求头中，很少使用json数据；当然，如果使用也是可以的，只要服务端配合就行！"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {
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"polyglot_notebook": {
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"kernelName": "csharp"
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},
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"vscode": {
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"languageId": "polyglot-notebook"
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}
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},
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"outputs": [],
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"source": [
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"#r \"nuget:Newtonsoft.Json\"\n",
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"\n",
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"{ //手动管理json\n",
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"\n",
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" //参数对象\n",
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" var postData = new \n",
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" {\n",
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" id = 1,\n",
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" name = \"小品王\"\n",
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" };\n",
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"\n",
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" //手动转为json字符串\n",
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" var textJsonData = Newtonsoft.Json.JsonConvert.SerializeObject(postData);\n",
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"\n",
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" //请求内容\n",
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" var requestContent = new StringContent(textJsonData, Encoding.UTF8, System.Net.Mime.MediaTypeNames.Application.Json); \n",
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"\n",
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" //发送请求\n",
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" var response = await SharedClient.PostAsync(\"/api/AdvancedPost/JsonData\", requestContent);\n",
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"\n",
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" //读取响应内容\n",
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" var content = await response.Content.ReadAsStringAsync();\n",
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"\n",
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" //输出响应内容\n",
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" Console.WriteLine(content);\n",
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"}"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"+ 使用Json格式响应数据"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {
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"polyglot_notebook": {
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"kernelName": "csharp"
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},
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"vscode": {
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"languageId": "polyglot-notebook"
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}
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},
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"outputs": [],
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"source": [
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"#r \"nuget:Newtonsoft.Json\"\n",
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"\n",
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"{ //手动管理json\n",
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"\n",
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" //参数对象\n",
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" var postData = new \n",
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" {\n",
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" id = 2,\n",
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" name = \"线程张\"\n",
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" };\n",
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"\n",
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" //手动转为json字符串\n",
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" var textJsonData = Newtonsoft.Json.JsonConvert.SerializeObject(postData);\n",
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"\n",
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" //请求内容\n",
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" var requestContent = new StringContent(textJsonData, Encoding.UTF8, System.Net.Mime.MediaTypeNames.Application.Json); \n",
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"\n",
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" //发送请求\n",
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" var response = await SharedClient.PostAsync(\"/api/AdvancedPost/JsonData\", requestContent);\n",
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"\n",
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" //读取响应内容\n",
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" var content = await response.Content.ReadAsStringAsync();\n",
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"\n",
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" //手动反序列化Json为匿名对象(System.Text.Json不支持)\n",
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" var responseObj = Newtonsoft.Json.JsonConvert.DeserializeAnonymousType(content,postData);\n",
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"\n",
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" //输出响应内容\n",
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" Console.WriteLine(content);\n",
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"}"
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]
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},
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{
|
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"## 使用相关类库, 管理Json数据"
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]
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},
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{
|
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|
"cell_type": "markdown",
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"metadata": {},
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"source": [
|
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".Net框架，提供了丰富的 Json 类库，使得在HttpClient中进行jsonr操作非常方便、好用!\n",
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"\n",
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"确保引入了 Microsoft.Extensions.Http 类库"
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]
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},
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{
|
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"cell_type": "markdown",
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"metadata": {},
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"source": [
|
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"+ 在请求中使用json数据"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {
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"polyglot_notebook": {
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"kernelName": "csharp"
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},
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"vscode": {
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"languageId": "polyglot-notebook"
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}
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},
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"outputs": [],
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"source": [
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"{ //引入 Microsoft.Extensions.Http\n",
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"\n",
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" //参数对象\n",
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" var postData = new \n",
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" {\n",
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" id = 2,\n",
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" name = \"线程张\"\n",
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" };\n",
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"\n",
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" //请求内容\n",
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" var requestContent = JsonContent.Create(postData); \n",
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"\n",
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" //发送请求\n",
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" var response = await SharedClient.PostAsync(\"/api/AdvancedPost/JsonData\", requestContent);\n",
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"\n",
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" //读取响应内容\n",
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" var content = await response.Content.ReadAsStringAsync();\n",
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"\n",
|
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|
|
|
" //手动反序列化Json为匿名对象(System.Text.Json不支持)\n",
|
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|
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" var responseObj = Newtonsoft.Json.JsonConvert.DeserializeAnonymousType(content,postData);\n",
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"\n",
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" //输出响应内容\n",
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" Console.WriteLine(content);\n",
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"}"
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]
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},
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{
|
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"+ 使用响应中的json数据"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {
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"polyglot_notebook": {
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"kernelName": "csharp"
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},
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"vscode": {
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"languageId": "polyglot-notebook"
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}
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},
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"outputs": [],
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"source": [
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"{ //引入 Microsoft.Extensions.Http\n",
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"\n",
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" //参数对象\n",
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" var postData = new \n",
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" {\n",
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" id = 2,\n",
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" name = \"线程张\"\n",
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" };\n",
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"\n",
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" //请求内容\n",
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" var requestContent = JsonContent.Create(postData); \n",
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"\n",
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" //发送请求\n",
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" var response = await SharedClient.PostAsync(\"/api/AdvancedPost/JsonData\", requestContent);\n",
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"\n",
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|
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" //读取响应内容,并且转为对象\n",
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" var contentObject = await response.Content.ReadFromJsonAsync(postData.GetType());\n",
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"\n",
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" contentObject.Display();\n",
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"}"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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|
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"## 总结\n",
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"\n",
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|
"不论是手动管理json，还是利用框架类库来管理，其原理都是一样的，无非是接受和响应json这种特定格式的数据。\n",
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"\n",
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"只要熟悉了\"发送请求\"和\"接受响应\"，json数据就非常容易。\n",
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"\n",
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"当然了，还是推荐使用框架提供的类库，非常方便、快捷，且不容出错！毕竟，框架类库的质量还是非常高的！"
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]
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}
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],
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