更新

OcelotStudy.Getway/OcelotStudy.Getway.csproj

@@ -9,6 +9,18 @@
   </ItemGroup>
 
   <ItemGroup>
+    <Content Update="ocelot.Empty.json">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </Content>
+    <Content Update="ocelot.Development.json">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </Content>
+    <Content Update="ocelot.Production.json">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </Content>
+    <Content Update="ocelot.Staging.json">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </Content>
     <Content Update="ocelot.json">
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
     </Content>

OcelotStudy.Getway/Program.cs

@@ -17,21 +17,56 @@ namespace OcelotStudy.Getway
             CreateHostBuilder(args).Build().Run();
         }
 
-        public static IHostBuilder CreateHostBuilder(string[] args) =>
-            Host.CreateDefaultBuilder(args)
+        public static IHostBuilder CreateHostBuilder(string[] args)
+        {
+            var builder = Host.CreateDefaultBuilder(args);
+            builder
             .ConfigureAppConfiguration((hostingContext, config) =>
              {
-                   //添加配置文件的使用
                  config
                      .SetBasePath(hostingContext.HostingEnvironment.ContentRootPath)
                      .AddJsonFile("appsettings.json", true, true)
                      .AddJsonFile($"appsettings.{hostingContext.HostingEnvironment.EnvironmentName}.json", true, true)
-                       .AddJsonFile("ocelot.json")
-                       .AddEnvironmentVariables();
-               })
-                .ConfigureWebHostDefaults(webBuilder =>
-                {
-                    webBuilder.UseStartup<Startup>();
+                     .AddEnvironmentVariables()
+                     .AddCommandLine(args);
+
+                 LoadOcelotConfig(config, hostingContext);
              });
+
+            return builder;
+        }
+
+        static IConfigurationBuilder LoadOcelotConfig(IConfigurationBuilder config, HostBuilderContext hostingContext)
+        {
+            var configFromCommandLine = config.Build().GetValue("config", string.Empty);
+
+            //ÃüÁîÐвÎÊýÓÅ»¯
+            if (!string.IsNullOrEmpty(configFromCommandLine))
+            {
+                if (configFromCommandLine.EndsWith(".json"))
+                {
+                    config.AddJsonFile($"{configFromCommandLine}", true, true);
+                }
+                else
+                {
+                    if (configFromCommandLine.StartsWith("ocelot."))
+                    {
+                        config.AddJsonFile($"{configFromCommandLine}.json", false, true);
+                    }
+                    else
+                    {
+                        config.AddJsonFile($"ocelot.{configFromCommandLine}.json", false, true);
+                    }
+                }
+            }
+            else
+            {
+                config
+                .AddJsonFile("ocelot.json", false, true)
+                .AddJsonFile($"ocelot.{hostingContext.HostingEnvironment.EnvironmentName}.json", true, true);
+            }
+
+            return config;
+        }
     }
 }

OcelotStudy.Getway/Properties/launchSettings.json

@@ -19,6 +19,7 @@
     },
     "OcelotStudy.Getway": {
       "commandName": "Project",
+      "commandLineArgs": "config=a.json",
       "launchBrowser": true,
       "launchUrl": "Index.html",
       "applicationUrl": "http://localhost:5000",

OcelotStudy.Getway/ocelot.Development.json

@@ -0,0 +1,32 @@
+{
+  "Routes": [
+    {
+      "DownstreamPathTemplate": "/api/ServiceA/ping",
+      "DownstreamScheme": "http",
+      "DownstreamHostAndPorts": [
+        {
+          "Host": "localhost",
+          "Port": 5101
+        }
+       ],
+      "UpstreamPathTemplate": "/api/ServiceA",
+      "UpstreamHttpMethod": [ "Get" ]
+    },
+    {
+      "DownstreamPathTemplate": "/api/ServiceB/ping",
+      "DownstreamHostAndPorts": [
+        {
+          "Host": "localhost",
+          "Port": 5102
+        }
+      ],
+      "DownstreamPort": 5102,
+      "UpstreamPathTemplate": "/api/ServiceB",
+      "UpstreamHttpMethod": [ "Get" ]
+    }
+  ],
+  "GlobalConfiguration": {
+    "RequestIdKey": "OcRequestId",
+    "AdministrationPath": "/administration"
+  }
+}

OcelotStudy.Getway/ocelot.Empty.json

@@ -0,0 +1,5 @@
+{
+  //没有任何功能，仅能使Ocelot程序启动
+  "Routes": [],
+  "GlobalConfiguration": {}
+}

OcelotStudy.Getway/ocelot.Production.json

@@ -0,0 +1,32 @@
+{
+  "Routes": [
+    {
+      "DownstreamPathTemplate": "/api/ServiceA/ping",
+      "DownstreamScheme": "http",
+      "DownstreamHostAndPorts": [
+        {
+          "Host": "localhost",
+          "Port": 5101
+        }
+       ],
+      "UpstreamPathTemplate": "/api/ServiceA",
+      "UpstreamHttpMethod": [ "Get" ]
+    },
+    {
+      "DownstreamPathTemplate": "/api/ServiceB/ping",
+      "DownstreamHostAndPorts": [
+        {
+          "Host": "localhost",
+          "Port": 5102
+        }
+      ],
+      "DownstreamPort": 5102,
+      "UpstreamPathTemplate": "/api/ServiceB",
+      "UpstreamHttpMethod": [ "Get" ]
+    }
+  ],
+  "GlobalConfiguration": {
+    "RequestIdKey": "OcRequestId",
+    "AdministrationPath": "/administration"
+  }
+}

OcelotStudy.Getway/ocelot.Staging.json

@@ -0,0 +1,32 @@
+{
+  "Routes": [
+    {
+      "DownstreamPathTemplate": "/api/ServiceA/ping",
+      "DownstreamScheme": "http",
+      "DownstreamHostAndPorts": [
+        {
+          "Host": "localhost",
+          "Port": 5101
+        }
+       ],
+      "UpstreamPathTemplate": "/api/ServiceA",
+      "UpstreamHttpMethod": [ "Get" ]
+    },
+    {
+      "DownstreamPathTemplate": "/api/ServiceB/ping",
+      "DownstreamHostAndPorts": [
+        {
+          "Host": "localhost",
+          "Port": 5102
+        }
+      ],
+      "DownstreamPort": 5102,
+      "UpstreamPathTemplate": "/api/ServiceB",
+      "UpstreamHttpMethod": [ "Get" ]
+    }
+  ],
+  "GlobalConfiguration": {
+    "RequestIdKey": "OcRequestId",
+    "AdministrationPath": "/administration"
+  }
+}