.NetCore2.1 WebAPI 根据swagger.json自动生成客户端代码
前言
上一篇博客中我们可以得知通过Swagger插件可以很方便的提供给接口开发者在线调试,但是实际上Swagger附带的功能还有很多,
比如使用NSwag生成客户端调用代码,进一步解放接口开发者。
NSwag
NSwag是一个发布在GitHub上的开源项目,它可以根据Swagger说明页上的swagger.json文件生成C#、TypeScript客户端代码。
NSwag的项目地址:https://github.com/RSuter/NSwag
Nswag提供4种代码生成方法
1、使用 NSwagStudio,这是一款 Windows 桌面应用,用于在 C# 和 TypeScript 中为 API 生成客户端代码。
2、使用 NSwag.CodeGeneration.CSharp 或 NSwag.CodeGeneration.TypeScript NuGet 包在项目中执行代码生成。
3、使用命令行中的 NSwag。
4、使用 NSwag.MSBuild NuGet 包。
这里推荐使用NSwagStudio,可以从GitHub上下载该工具,地址:https://github.com/RSuter/NSwag/wiki/NSwagStudio
下载后开始安装,安装完毕后打开NSwagStudio,如下图,在左侧选择Tab页菜单里选择Documents
如上图框框选中的几点,我们需要留意。其中Swagger Specification URL就是我们WebAPI的swagger.json的在线地址。
如果点击【Create local Copy 】按钮时你的WebAPI未在线则代码生成工具会弹出错误对话框,如下图:
所以采取读取Swagger Specification URL 方式进行生成代码的前提条件是你必须保证swagger.json文件能在线读取!
其次你可以选择RunTime(运行时),这里应该是服务端WebAPI的运行时(毕竟TypeScript是不关心你服务端是.NET Core还是.NET Framework).
因为我的环境是.NET Core2.1,所以这里选择NET Core21。
接下来,点击【Create local Copy】按钮,点击后NSwagStudio会与WebAPI服务端进行交互,成功后会将swagger.json文件格式化到左边的文本编辑器中,如下图:
此时,你可以在右侧的Outputs中勾选你需要输出的文件格式,这里我选择TypeScript和CSharp Client,
这个地方有个C# WebAPI Controller,我有点纳闷,我都有swagger.json文件了绝壁是已经存在webapi了,
没有必要反向再去生成一遍webapi的控制器啦。 不懂,反正只管生成客户端代码就好。
我们勾选好后下面就会出现相应的输出配合页面,如下图:
我们选择CSharp Client页面,该页面左侧分为Setting和Output两个页面,Setting页可以对输出的cs文件进行配置,如命名空间、类名称、输出文件路径等等(很多配置我也不会....)
我们点击【Generate Outputs】后NSwagStudio会根据配置生成客户端操作类,在Output页面即可检查,检查无误后再点击【Generate Files】可将类文件导出到配置的输出目录。
TypeScript亦是如此,同时NSwagStudio也可支持加载DLL反射生成,具体方法可根据官网操作(毕竟可以直接使用json文件在线生成没必要再自己手工选择dll..)
这里截图看SwagerUI页和NSwagStudio生成后的客户端cs文件
生成的客户端C#代码:
//----------------------
// <auto-generated>
// Generated using the NSwag toolchain v11.17.19.0 (NJsonSchema v9.10.58.0 (Newtonsoft.Json v9.0.0.0)) (http://NSwag.org)
// </auto-generated>
//---------------------- namespace Test
{
#pragma warning disable // Disable all warnings [System.CodeDom.Compiler.GeneratedCode("NSwag", "11.17.19.0 (NJsonSchema v9.10.58.0 (Newtonsoft.Json v9.0.0.0))")]
public partial class Client
{
private string _baseUrl = "http://localhost:58985";
private System.Lazy<Newtonsoft.Json.JsonSerializerSettings> _settings; public Client()
{
_settings = new System.Lazy<Newtonsoft.Json.JsonSerializerSettings>(() =>
{
var settings = new Newtonsoft.Json.JsonSerializerSettings();
UpdateJsonSerializerSettings(settings);
return settings;
});
} public string BaseUrl
{
get { return _baseUrl; }
set { _baseUrl = value; }
} protected Newtonsoft.Json.JsonSerializerSettings JsonSerializerSettings { get { return _settings.Value; } } partial void UpdateJsonSerializerSettings(Newtonsoft.Json.JsonSerializerSettings settings);
partial void PrepareRequest(System.Net.Http.HttpClient client, System.Net.Http.HttpRequestMessage request, string url);
partial void PrepareRequest(System.Net.Http.HttpClient client, System.Net.Http.HttpRequestMessage request, System.Text.StringBuilder urlBuilder);
partial void ProcessResponse(System.Net.Http.HttpClient client, System.Net.Http.HttpResponseMessage response); /// <summary>巴拉巴拉</summary>
/// <returns>Success</returns>
/// <exception cref="SwaggerException">A server side error occurred.</exception>
public System.Threading.Tasks.Task ApiTestGetAsync()
{
return ApiTestGetAsync(System.Threading.CancellationToken.None);
} /// <summary>巴拉巴拉</summary>
/// <returns>Success</returns>
/// <exception cref="SwaggerException">A server side error occurred.</exception>
/// <param name="cancellationToken">A cancellation token that can be used by other objects or threads to receive notice of cancellation.</param>
public async System.Threading.Tasks.Task ApiTestGetAsync(System.Threading.CancellationToken cancellationToken)
{
var urlBuilder_ = new System.Text.StringBuilder();
urlBuilder_.Append(BaseUrl != null ? BaseUrl.TrimEnd('/') : "").Append("/api/Test"); var client_ = new System.Net.Http.HttpClient();
try
{
using (var request_ = new System.Net.Http.HttpRequestMessage())
{
request_.Method = new System.Net.Http.HttpMethod("GET"); PrepareRequest(client_, request_, urlBuilder_);
var url_ = urlBuilder_.ToString();
request_.RequestUri = new System.Uri(url_, System.UriKind.RelativeOrAbsolute);
PrepareRequest(client_, request_, url_); var response_ = await client_.SendAsync(request_, System.Net.Http.HttpCompletionOption.ResponseHeadersRead, cancellationToken).ConfigureAwait(false);
try
{
var headers_ = System.Linq.Enumerable.ToDictionary(response_.Headers, h_ => h_.Key, h_ => h_.Value);
if (response_.Content != null && response_.Content.Headers != null)
{
foreach (var item_ in response_.Content.Headers)
headers_[item_.Key] = item_.Value;
} ProcessResponse(client_, response_); var status_ = ((int)response_.StatusCode).ToString();
if (status_ == "200")
{
return;
}
else
if (status_ != "200" && status_ != "204")
{
var responseData_ = response_.Content == null ? null : await response_.Content.ReadAsStringAsync().ConfigureAwait(false);
throw new SwaggerException("The HTTP status code of the response was not expected (" + (int)response_.StatusCode + ").", (int)response_.StatusCode, responseData_, headers_, null);
}
}
finally
{
if (response_ != null)
response_.Dispose();
}
}
}
finally
{
if (client_ != null)
client_.Dispose();
}
} /// <returns>Success</returns>
/// <exception cref="SwaggerException">A server side error occurred.</exception>
public System.Threading.Tasks.Task ApiTestPostAsync(string value)
{
return ApiTestPostAsync(value, System.Threading.CancellationToken.None);
} /// <returns>Success</returns>
/// <exception cref="SwaggerException">A server side error occurred.</exception>
/// <param name="cancellationToken">A cancellation token that can be used by other objects or threads to receive notice of cancellation.</param>
public async System.Threading.Tasks.Task ApiTestPostAsync(string value, System.Threading.CancellationToken cancellationToken)
{
var urlBuilder_ = new System.Text.StringBuilder();
urlBuilder_.Append(BaseUrl != null ? BaseUrl.TrimEnd('/') : "").Append("/api/Test"); var client_ = new System.Net.Http.HttpClient();
try
{
using (var request_ = new System.Net.Http.HttpRequestMessage())
{
var content_ = new System.Net.Http.StringContent(Newtonsoft.Json.JsonConvert.SerializeObject(value, _settings.Value));
content_.Headers.ContentType = System.Net.Http.Headers.MediaTypeHeaderValue.Parse("multipart/form-data");
request_.Content = content_;
request_.Method = new System.Net.Http.HttpMethod("POST"); PrepareRequest(client_, request_, urlBuilder_);
var url_ = urlBuilder_.ToString();
request_.RequestUri = new System.Uri(url_, System.UriKind.RelativeOrAbsolute);
PrepareRequest(client_, request_, url_); var response_ = await client_.SendAsync(request_, System.Net.Http.HttpCompletionOption.ResponseHeadersRead, cancellationToken).ConfigureAwait(false);
try
{
var headers_ = System.Linq.Enumerable.ToDictionary(response_.Headers, h_ => h_.Key, h_ => h_.Value);
if (response_.Content != null && response_.Content.Headers != null)
{
foreach (var item_ in response_.Content.Headers)
headers_[item_.Key] = item_.Value;
} ProcessResponse(client_, response_); var status_ = ((int)response_.StatusCode).ToString();
if (status_ == "200")
{
return;
}
else
if (status_ != "200" && status_ != "204")
{
var responseData_ = response_.Content == null ? null : await response_.Content.ReadAsStringAsync().ConfigureAwait(false);
throw new SwaggerException("The HTTP status code of the response was not expected (" + (int)response_.StatusCode + ").", (int)response_.StatusCode, responseData_, headers_, null);
}
}
finally
{
if (response_ != null)
response_.Dispose();
}
}
}
finally
{
if (client_ != null)
client_.Dispose();
}
} /// <summary>我是get测试</summary>
/// <returns>Success</returns>
/// <exception cref="SwaggerException">A server side error occurred.</exception>
public System.Threading.Tasks.Task<string> ApiTestByIdGetAsync(int id)
{
return ApiTestByIdGetAsync(id, System.Threading.CancellationToken.None);
} /// <summary>我是get测试</summary>
/// <returns>Success</returns>
/// <exception cref="SwaggerException">A server side error occurred.</exception>
/// <param name="cancellationToken">A cancellation token that can be used by other objects or threads to receive notice of cancellation.</param>
public async System.Threading.Tasks.Task<string> ApiTestByIdGetAsync(int id, System.Threading.CancellationToken cancellationToken)
{
if (id == null)
throw new System.ArgumentNullException("id"); var urlBuilder_ = new System.Text.StringBuilder();
urlBuilder_.Append(BaseUrl != null ? BaseUrl.TrimEnd('/') : "").Append("/api/Test/{id}");
urlBuilder_.Replace("{id}", System.Uri.EscapeDataString(ConvertToString(id, System.Globalization.CultureInfo.InvariantCulture))); var client_ = new System.Net.Http.HttpClient();
try
{
using (var request_ = new System.Net.Http.HttpRequestMessage())
{
request_.Method = new System.Net.Http.HttpMethod("GET");
request_.Headers.Accept.Add(new System.Net.Http.Headers.MediaTypeWithQualityHeaderValue("application/json")); PrepareRequest(client_, request_, urlBuilder_);
var url_ = urlBuilder_.ToString();
request_.RequestUri = new System.Uri(url_, System.UriKind.RelativeOrAbsolute);
PrepareRequest(client_, request_, url_); var response_ = await client_.SendAsync(request_, System.Net.Http.HttpCompletionOption.ResponseHeadersRead, cancellationToken).ConfigureAwait(false);
try
{
var headers_ = System.Linq.Enumerable.ToDictionary(response_.Headers, h_ => h_.Key, h_ => h_.Value);
if (response_.Content != null && response_.Content.Headers != null)
{
foreach (var item_ in response_.Content.Headers)
headers_[item_.Key] = item_.Value;
} ProcessResponse(client_, response_); var status_ = ((int)response_.StatusCode).ToString();
if (status_ == "200")
{
var responseData_ = response_.Content == null ? null : await response_.Content.ReadAsStringAsync().ConfigureAwait(false);
var result_ = default(string);
try
{
result_ = Newtonsoft.Json.JsonConvert.DeserializeObject<string>(responseData_, _settings.Value);
return result_;
}
catch (System.Exception exception_)
{
throw new SwaggerException("Could not deserialize the response body.", (int)response_.StatusCode, responseData_, headers_, exception_);
}
}
else
if (status_ != "200" && status_ != "204")
{
var responseData_ = response_.Content == null ? null : await response_.Content.ReadAsStringAsync().ConfigureAwait(false);
throw new SwaggerException("The HTTP status code of the response was not expected (" + (int)response_.StatusCode + ").", (int)response_.StatusCode, responseData_, headers_, null);
} return default(string);
}
finally
{
if (response_ != null)
response_.Dispose();
}
}
}
finally
{
if (client_ != null)
client_.Dispose();
}
} /// <returns>Success</returns>
/// <exception cref="SwaggerException">A server side error occurred.</exception>
public System.Threading.Tasks.Task ApiTestByIdPutAsync(int id, string value)
{
return ApiTestByIdPutAsync(id, value, System.Threading.CancellationToken.None);
} /// <returns>Success</returns>
/// <exception cref="SwaggerException">A server side error occurred.</exception>
/// <param name="cancellationToken">A cancellation token that can be used by other objects or threads to receive notice of cancellation.</param>
public async System.Threading.Tasks.Task ApiTestByIdPutAsync(int id, string value, System.Threading.CancellationToken cancellationToken)
{
if (id == null)
throw new System.ArgumentNullException("id"); var urlBuilder_ = new System.Text.StringBuilder();
urlBuilder_.Append(BaseUrl != null ? BaseUrl.TrimEnd('/') : "").Append("/api/Test/{id}");
urlBuilder_.Replace("{id}", System.Uri.EscapeDataString(ConvertToString(id, System.Globalization.CultureInfo.InvariantCulture))); var client_ = new System.Net.Http.HttpClient();
try
{
using (var request_ = new System.Net.Http.HttpRequestMessage())
{
var content_ = new System.Net.Http.StringContent(Newtonsoft.Json.JsonConvert.SerializeObject(value, _settings.Value));
content_.Headers.ContentType = System.Net.Http.Headers.MediaTypeHeaderValue.Parse("multipart/form-data");
request_.Content = content_;
request_.Method = new System.Net.Http.HttpMethod("PUT"); PrepareRequest(client_, request_, urlBuilder_);
var url_ = urlBuilder_.ToString();
request_.RequestUri = new System.Uri(url_, System.UriKind.RelativeOrAbsolute);
PrepareRequest(client_, request_, url_); var response_ = await client_.SendAsync(request_, System.Net.Http.HttpCompletionOption.ResponseHeadersRead, cancellationToken).ConfigureAwait(false);
try
{
var headers_ = System.Linq.Enumerable.ToDictionary(response_.Headers, h_ => h_.Key, h_ => h_.Value);
if (response_.Content != null && response_.Content.Headers != null)
{
foreach (var item_ in response_.Content.Headers)
headers_[item_.Key] = item_.Value;
} ProcessResponse(client_, response_); var status_ = ((int)response_.StatusCode).ToString();
if (status_ == "200")
{
return;
}
else
if (status_ != "200" && status_ != "204")
{
var responseData_ = response_.Content == null ? null : await response_.Content.ReadAsStringAsync().ConfigureAwait(false);
throw new SwaggerException("The HTTP status code of the response was not expected (" + (int)response_.StatusCode + ").", (int)response_.StatusCode, responseData_, headers_, null);
}
}
finally
{
if (response_ != null)
response_.Dispose();
}
}
}
finally
{
if (client_ != null)
client_.Dispose();
}
} /// <summary>小魔仙</summary>
/// <returns>Success</returns>
/// <exception cref="SwaggerException">A server side error occurred.</exception>
public System.Threading.Tasks.Task ApiTestByIdDeleteAsync(int id)
{
return ApiTestByIdDeleteAsync(id, System.Threading.CancellationToken.None);
} /// <summary>小魔仙</summary>
/// <returns>Success</returns>
/// <exception cref="SwaggerException">A server side error occurred.</exception>
/// <param name="cancellationToken">A cancellation token that can be used by other objects or threads to receive notice of cancellation.</param>
public async System.Threading.Tasks.Task ApiTestByIdDeleteAsync(int id, System.Threading.CancellationToken cancellationToken)
{
if (id == null)
throw new System.ArgumentNullException("id"); var urlBuilder_ = new System.Text.StringBuilder();
urlBuilder_.Append(BaseUrl != null ? BaseUrl.TrimEnd('/') : "").Append("/api/Test/{id}");
urlBuilder_.Replace("{id}", System.Uri.EscapeDataString(ConvertToString(id, System.Globalization.CultureInfo.InvariantCulture))); var client_ = new System.Net.Http.HttpClient();
try
{
using (var request_ = new System.Net.Http.HttpRequestMessage())
{
request_.Method = new System.Net.Http.HttpMethod("DELETE"); PrepareRequest(client_, request_, urlBuilder_);
var url_ = urlBuilder_.ToString();
request_.RequestUri = new System.Uri(url_, System.UriKind.RelativeOrAbsolute);
PrepareRequest(client_, request_, url_); var response_ = await client_.SendAsync(request_, System.Net.Http.HttpCompletionOption.ResponseHeadersRead, cancellationToken).ConfigureAwait(false);
try
{
var headers_ = System.Linq.Enumerable.ToDictionary(response_.Headers, h_ => h_.Key, h_ => h_.Value);
if (response_.Content != null && response_.Content.Headers != null)
{
foreach (var item_ in response_.Content.Headers)
headers_[item_.Key] = item_.Value;
} ProcessResponse(client_, response_); var status_ = ((int)response_.StatusCode).ToString();
if (status_ == "200")
{
return;
}
else
if (status_ != "200" && status_ != "204")
{
var responseData_ = response_.Content == null ? null : await response_.Content.ReadAsStringAsync().ConfigureAwait(false);
throw new SwaggerException("The HTTP status code of the response was not expected (" + (int)response_.StatusCode + ").", (int)response_.StatusCode, responseData_, headers_, null);
}
}
finally
{
if (response_ != null)
response_.Dispose();
}
}
}
finally
{
if (client_ != null)
client_.Dispose();
}
} private string ConvertToString(object value, System.Globalization.CultureInfo cultureInfo)
{
if (value is System.Enum)
{
string name = System.Enum.GetName(value.GetType(), value);
if (name != null)
{
var field = System.Reflection.IntrospectionExtensions.GetTypeInfo(value.GetType()).GetDeclaredField(name);
if (field != null)
{
var attribute = System.Reflection.CustomAttributeExtensions.GetCustomAttribute(field, typeof(System.Runtime.Serialization.EnumMemberAttribute))
as System.Runtime.Serialization.EnumMemberAttribute;
if (attribute != null)
{
return attribute.Value;
}
}
}
}
else if (value is byte[])
{
return System.Convert.ToBase64String((byte[]) value);
}
else if (value != null && value.GetType().IsArray)
{
var array = System.Linq.Enumerable.OfType<object>((System.Array) value);
return string.Join(",", System.Linq.Enumerable.Select(array, o => ConvertToString(o, cultureInfo)));
} return System.Convert.ToString(value, cultureInfo);
}
} [System.CodeDom.Compiler.GeneratedCode("NSwag", "11.17.19.0 (NJsonSchema v9.10.58.0 (Newtonsoft.Json v9.0.0.0))")]
public partial class SwaggerException : System.Exception
{
public int StatusCode { get; private set; } public string Response { get; private set; } public System.Collections.Generic.Dictionary<string, System.Collections.Generic.IEnumerable<string>> Headers { get; private set; } public SwaggerException(string message, int statusCode, string response, System.Collections.Generic.Dictionary<string, System.Collections.Generic.IEnumerable<string>> headers, System.Exception innerException)
: base(message, innerException)
{
StatusCode = statusCode;
Response = response;
Headers = headers;
} public override string ToString()
{
return string.Format("HTTP Response: \n\n{0}\n\n{1}", Response, base.ToString());
}
} [System.CodeDom.Compiler.GeneratedCode("NSwag", "11.17.19.0 (NJsonSchema v9.10.58.0 (Newtonsoft.Json v9.0.0.0))")]
public partial class SwaggerException<TResult> : SwaggerException
{
public TResult Result { get; private set; } public SwaggerException(string message, int statusCode, string response, System.Collections.Generic.Dictionary<string, System.Collections.Generic.IEnumerable<string>> headers, TResult result, System.Exception innerException)
: base(message, statusCode, response, headers, innerException)
{
Result = result;
}
} }
在线生成客户端|服务端调用代码
如果嫌代码生成工具需要下载或你们前端的电脑操作系统是MacOs则可以考虑使用Swagger在线代码生成,地址: https://editor.swagger.io/
Swagger线上代码生成支持导入swagger.json文件和引用SwaggerUI线上地址两种模式。
推荐使用Import File,我使用Import URL压根就没成功过。。。。
导入方法如下图
导入后可以选择导出的方式(服务端 OR 客户端),并且这个比前面的代码生成器exe要强大啊,它支持导出的语言真是把我惊呆了,牛逼啊。
没图我会乱说?? 是不是很牛逼。
选择生成后,浏览器就会下载代码啦~~~~~~真的牛批啊~~!~!!!
给你们贴一张线上生成TypeScript-angular的代码,真的比那个exe生成出来的代码规范多了,线上生成的会根据每一个Controller生成一个Service.ts,
exe工具是把所有Controllser的action都生成在一个Service.ts文件里(尼玛,这也能不同。。我还是以后都从线上生成算了....)
结语
不得不赞叹Swagger的强大,它的出现解放了多少程序员啊,后续但凡有客户端码农说不会调用哥的API,哥都可以直接给他代码生成器生成的代码,一个字:爽。
.NetCore2.1 WebAPI 根据swagger.json自动生成客户端代码的更多相关文章
- ionic + asp.net core webapi + keycloak实现前后端用户认证和自动生成客户端代码
概述 本文使用ionic/angular开发网页前台,asp.net core webapi开发restful service,使用keycloak保护前台页面和后台服务,并且利用open api自动 ...
- WebApi使用swagger ui自动生成接口文档
之前就写到.最近正在使用webapi.这里介绍一个实用的东西swageer ui现在开发都是前后端分开.我们这里是给前端提供api.有时候对于一个api的描述,并不想专门写一份文档.很浪费时间.swa ...
- As/IDEA json自动生成java bean
1.先安装GsonFormat插件:File-->Setting-->Plugins-->GsonFormat-->OK 2.new 一个新的Class空文件,然后 Alt+I ...
- 使用xorm工具,根据数据库自动生成 go 代码
使用xorm工具,根据数据库自动生成 go 代码 引入 使用 golang 操作数据库的同学都会遇到一个问题 -- 根据数据表结构创建对应的 struct 模型.因为 golang 的使用首字母控制可 ...
- [Dynamic Language] 用Sphinx自动生成python代码注释文档
用Sphinx自动生成python代码注释文档 pip install -U sphinx 安装好了之后,对Python代码的文档,一般使用sphinx-apidoc来自动生成:查看帮助mac-abe ...
- wsdl自动生成Java代码,根据wsdl生成Java代码
wsdl自动生成Java代码,根据wsdl生成Java代码 >>>>>>>>>>>>>>>>>&g ...
- mybatis自动生成java代码
SSM框架没有DB+Record模式,写起来特别费劲,只能用下面的方法勉强凑合. 上图中,*.jar为下载的,src为新建的空白目录,.xml配置如下. <?xml version=" ...
- 使用mybatis-generator工具自动生成mybatis代码
使用mybatis-generator工具自动生成mybatis代码 步骤如下: 1.引入maven 依赖,在项目pom.xml文件中添加 <plugin> <groupId> ...
- vs code自动生成html代码
在dreamveawer中新建一个htm自动会生成一个标准的html代码,那在vscode得一行一行写吗?太烦了吧,各种关键词搜,哎妈 终于找到了办法,现在这里记录下: 第一步:在空文档中输入! 第二 ...
随机推荐
- Hibernate HQL ②
分页查询: - setFirstResult(int firstResult):设定从哪一个对象开始检索,参数 firstResult 表示这个对象在查询结果中的索引位置,索引位置的起始值为零.默认情 ...
- 到位App_jQuery_art-template
到位 App 不写 node 服务器,本地模拟 ajax 获取 json 数据 源代码 ---- 参见 ---- 使用 webstorm 运行 index.html 本地静态的 data.json 前 ...
- 【原创】XAF Winfrom 支持4K分辨率
Program.cs 添加以下代码 [STAThread] static void Main() { //支持4K显示 DevExpress.XtraEditors.WindowsFormsSetti ...
- Redis安装完整步骤
安装: 1.获取redis资源 wget http://download.redis.io/releases/redis-4.0.8.tar.gz 2.解压 tar xzvf redis-4.0.8. ...
- js-day06-jQuery事件和DOM操作-练习题
jQuery事件绑定 js中绑定事件,三种方式: 方式1: 直接在元素上,增加onXxx事件属性. <button onclick="alert(1);">点我< ...
- JS DOM与BOM
DOM知识点 [DOM(文档对象模型)是 HTML 和 XML 的应用程序接口(API).DOM代表着被加载到浏览器窗口里的当前网页:浏览器向我们提供了当前网页的地图(或者说模型),而我们可以通过js ...
- 【RL-TCPnet网络教程】第23章 RL-TCPnet之地址解析协议ARP
第23章 RL-TCPnet之地址解析协议ARP 本章节为大家讲解ARP(Address Resolution Protocol,地址解析协议),通过前面章节对TCP和UDP的学习,需要大家 ...
- TCP与UDP区别总结
TCP与UDP区别总结:1.TCP面向连接(如打电话要先拨号建立连接);UDP是无连接的,即发送数据之前不需要建立连接2.TCP提供可靠的服务.也就是说,通过TCP连接传送的数据,无差错,不丢失,不重 ...
- SEO需要掌握的基础知识
什么是SEO? 官方解释: SEO是指通过对网站内部调整优化及站外优化,使网站满足搜索引擎收录排名需求,在搜索引擎中提高关键词排名, 从而把精准用户带到网站,获得免费流量,产生直接销售或品牌推广 ...
- [Swift]LeetCode42. 接雨水 | Trapping Rain Water
Given n non-negative integers representing an elevation map where the width of each bar is 1, comput ...