WebApi个人理解概要

WebApi概要

1. Global文件的作用：

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   public class MvcApplication : System.Web.HttpApplication {     protected void Application_Start()     {         //1.注册区域路由         AreaRegistration.RegisterAllAreas();         //2.注册webApi的路由         WebApiConfig.Register(GlobalConfiguration.Configuration);         //3.注册全局过滤器         FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);         //4.注册网站路由         RouteConfig.RegisterRoutes(RouteTable.Routes);         //5.优化js、cs         BundleConfig.RegisterBundles(BundleTable.Bundles);     } }

2. WebApi特点

1. 类必须继承ApiController            

2. 返回类型不再是ActionResult

3. 默认是请求WebApi控制器中的和HttpMethod同名的方法

3. 设置当前WebApi的默认返回格式为json--移除xml格式

1. config.Formatters.Remove(config.Formatters.XmlFormatter);

4. 网站访问WebApi，要提供相应的url接口

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   //http://localhost:4221/api/values/getpiglist protected void Page_Load(object sender, EventArgs e) {     //1.拼装要请求数据的url     string url = "http://localhost:4221/api/values/getpiglist";     //2.利用C#模拟浏览器发出请求     WebRequest request = WebRequest.Create(url);     //2.1设置请求方式，如果不设置则默认为get     request.Method = "get";     //3.获取响应报文     WebResponse response = request.GetResponse();     //4.获取相应报文体的字节数据byte[]     System.IO.Stream responseBody = response.GetResponseStream();     //5.将字节数据转换为字符串     using(StreamReader sr=new StreamReader(responseBody))     {         //5.1将相应报文体转换为json字符串         string responseBodyText = sr.ReadToEnd();         //5.2利用json序列化器将json字符串反序列化为list集合         System.Web.Script.Serialization.JavaScriptSerializer jss = new System.Web.Script.Serialization.JavaScriptSerializer();         List<Entity> list = jss.Deserialize(responseBodyText, typeof(List<Entity>)) as List<Entity>;         GridView1.DataSource = list;         GridView1.DataBind();     } }

5. 动态页面转静态

   private void MakeStaticPage(string url)
   {
   string txtHtml = "";
   string fileName = Guid.NewGuid().ToString() + ".html";
   //1.C#模拟浏览器发出请求
   WebRequest Request = WebRequest.Create(url);
   //2.获取Response对象
   WebResponse response = Request.GetResponse();
   //3.根据响应报文获取字节流
   Stream stream = response.GetResponseStream();
   //4.字节流转换为html文本，并存储到相应文本中
   using (StreamReader sr = new StreamReader(stream))
   {
   txtHtml = sr.ReadToEnd();
   File.WriteAllText(Server.MapPath("/staticPage/" + fileName), txtHtml);
   }
   Response.Write("<script>alert('静态化成功 !');</script>");
   }

三、MVC插件系统