ASP.NET Core下Ocelot的簡單使用

一、創建demo項目

1.新建webapi項目，命名為“DemoProject”

using Microsoft.AspNetCore.Mvc;
using System.Collections.Generic;

namespace DemoProject.Controllers
{
    [Route("api/[controller]/[action]")]
    [ApiController]
    public class DefaultController : ControllerBase
    {
        static List<Student> list = new List<Student>() {
             new Student(){ ID = "001", StudentName = "學生1", StudentAge = 16 },
             new Student(){ ID = "002", StudentName = "學生2", StudentAge = 18 },
             new Student(){ ID = "003", StudentName = "學生3", StudentAge = 17 }
         };

        [HttpGet]
        public List<Student> GetList()
        {
            return list;
        }

        [HttpGet]
        public Student GetModel(string id)
        {
            return list.Find(t => t.ID == id);
        }
    }

    public class Student
    {
        public string ID { get; set; }
        public string StudentName { get; set; }
        public int StudentAge { get; set; }
    }
}

 

2.通過VS啟動，並且保證能正常訪問

 

 

 

二、創建Ocelot項目

1.新建webapi項目，命名為“OcelotProject”，不需要Controller

 

2.打開程序包管理器控制台，執行命令：Install-Package Ocelot

 

3.在項目根目錄下，新建配置文件“ocelot.json”，填寫為你自己的“DemoProject”的端口號

{
  "ReRoutes": [
    {
      "DownstreamPathTemplate": "/api/Default/GetList",
      "DownstreamScheme": "http",
      "DownstreamHostAndPorts": [
        {
          "Host": "localhost",
          "Port": 5963
        }
      ],
      "UpstreamPathTemplate": "/GetList",
      "UpstreamHttpMethod": [ "Get" ]
    },
    {
      "DownstreamPathTemplate": "/api/Default/GetModel?id={s1}",
      "DownstreamScheme": "http",
      "DownstreamHostAndPorts": [
        {
          "Host": "localhost",
          "Port": 5963
        }
      ],
      "UpstreamPathTemplate": "/GetModel?id={s1}",
      "UpstreamHttpMethod": [ "Get" ]
    }
  ]
}

 

4.在Program.cs的CreateHostBuilder中加入

.ConfigureAppConfiguration(conf => {
    conf.AddJsonFile("ocelot.json", false, true);
})

 

5.找到Startup.cs

在ConfigureServices中加入：

services.AddOcelot(Configuration);

在Configure中加入：

app.UseOcelot().Wait();

 

 

三、請求

通過VS啟動“OcelotProject”，由於配置中對外的路由為“/GetList”，所以訪問地址為：http://ip:port/GetList

 

GetModel的訪問地址為：http://ip:port/GetModel?id=002

 

 

 

代碼：https://files.cnblogs.com/files/shousiji/OcelotDemo.rar