Ocelot与.NETcore7.0部署（基于腾讯云）

资料链接：https://download.csdn.net/download/ly1h1/90731290

1.效果

基于Ocelot，实现对3个微服务的轮询调用，实现不停机更新，无缝更新；

2.环境要求

1.部署环境：腾讯云的轻量化应用服务器

2.系统环境：Window Server 2016

3..net托管包：dotnet-hosting-9.0.4-win.exe

3.配置开放端口号

3.1 端口号说明：端口5000（服务1），端口5001（服务2），端口5002（服务3），端口5010（Ocelot）

3.2 在服务器管理平台上的开放以上4个端口号

2.3 配置入站规则端口号

4.服务1的代码

4.1 Program.cs

var builder = WebApplication.CreateBuilder(args);

// 添加Swagger
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen(c =>
{
    c.SwaggerDoc("v1", new() { Title = "ServerAPI1", Version = "v1" });
});

builder.WebHost.ConfigureKestrel(serverOptions => { })
              .UseUrls("http://*:5000"); // 允许所有Host

builder.Services.AddControllers();
var app = builder.Build();

// 配置Swagger
if (app.Environment.IsDevelopment())
{
    app.UseSwagger();
    app.UseSwaggerUI(c => c.SwaggerEndpoint("/swagger/v1/swagger.json", "ServerAPI1 v1"));
}

app.UseRouting();
app.MapControllers();

app.Run();

4.2 接口

using Microsoft.AspNetCore.Mvc;
using ServerAPI1.Models;

namespace ServerAPI1.Controllers
{
    [ApiController]
    [Route("api/[controller]")]
    [Produces("application/json")]
    public class ValuesController : ControllerBase
    {
        /// <summary>
        /// 获取服务基本信息
        /// </summary>
        [HttpGet("info")]
        [ProducesResponseType(200)]
        public IActionResult GetInfo()
        {
            return Ok(new { Service = "ServerAPI1", Port = 5000 });
        }

        /// <summary>
        /// 计算服务 (A+B)
        /// </summary>
        /// <param name="model">输入参数</param>
        [HttpPost("calculate")]
        [ProducesResponseType(200)]
        [ProducesResponseType(400)]
        public IActionResult Calculate([FromBody] TestModel model)
        {
            if (!ModelState.IsValid) return BadRequest(ModelState);
            return Ok(new { Result = 123 + 321, Input = model });
        }
    }
}

4.2 数据模型

using System.ComponentModel.DataAnnotations;

namespace ServerAPI1.Models
{
    public class TestModel
    {
        [Required]
        [StringLength(100)]
        public string AAA { get; set; }

        [StringLength(200)]
        public string BBB { get; set; }
    }
}

5.服务2的代码

5.1 Program.cs

var builder = WebApplication.CreateBuilder(args);

// 添加Swagger
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen(c =>
{
    c.SwaggerDoc("v1", new() { Title = "ServerAPI2", Version = "v1" });
});

builder.WebHost.ConfigureKestrel(serverOptions => { })
              .UseUrls("http://*:5001"); // 允许所有Host

builder.Services.AddControllers();
var app = builder.Build();

// 配置Swagger
if (app.Environment.IsDevelopment())
{
    app.UseSwagger();
    app.UseSwaggerUI(c => c.SwaggerEndpoint("/swagger/v1/swagger.json", "ServerAPI2 v1"));
}

app.UseRouting();
app.MapControllers();

app.Run();

5.2 接口

using Microsoft.AspNetCore.Mvc;
using ServerAPI2.Models;

namespace ServerAPI2.Controllers
{
    [ApiController]
    [Route("api/[controller]")]
    [Produces("application/json")]
    public class ValuesController : ControllerBase
    {
        /// <summary>
        /// 获取服务元数据
        /// </summary>
        [HttpGet("info")]
        [ProducesResponseType(200)]
        public IActionResult GetInfo()
        {
            return Ok(new { Service = "ServerAPI2", Port = 8016 });
        }

        /// <summary>
        /// 字符串转换服务
        /// </summary>
        /// <param name="model">输入参数</param>
        [HttpPost("calculate")]
        [ProducesResponseType(200)]
        [ProducesResponseType(400)]
        public IActionResult Transform([FromBody] TestModel model)
        {
            if (!ModelState.IsValid) return BadRequest(ModelState);
            return Ok(new { Result = $"{model.AAA}-{model.BBB}".ToUpper() });
        }
    }
}

5.3 数据模型

    using System.ComponentModel.DataAnnotations;

    namespace ServerAPI2.Models
    {
        public class TestModel
        {
            [Required]
            [StringLength(100)]
            public string AAA { get; set; }

            [StringLength(200)]
            public string BBB { get; set; }
        }
    }

6.服务3的代码

6.1 Program.cs

var builder = WebApplication.CreateBuilder(args);

// 添加Swagger
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen(c =>
{
    c.SwaggerDoc("v1", new() { Title = "ServerAPI3", Version = "v1" });
});

builder.WebHost.ConfigureKestrel(serverOptions => { })
              .UseUrls("http://*:5002"); // 允许所有Host

builder.Services.AddControllers();
var app = builder.Build();

// 配置Swagger
if (app.Environment.IsDevelopment())
{
    app.UseSwagger();
    app.UseSwaggerUI(c => c.SwaggerEndpoint("/swagger/v1/swagger.json", "ServerAPI3 v1"));
}

app.UseRouting();
app.MapControllers();

app.Run();

6.2 接口

using Microsoft.AspNetCore.Mvc;
using ServerAPI3.Models;

namespace ServerAPI3.Controllers
{
    [ApiController]
    [Route("api/[controller]")]
    [Produces("application/json")]
    public class ValuesController : ControllerBase
    {
        /// <summary>
        /// 获取服务元数据
        /// </summary>
        [HttpGet("info")]
        [ProducesResponseType(200)]
        public IActionResult GetInfo()
        {
            return Ok(new { Service = "ServerAPI4", Port = 8016 });
        }

        /// <summary>
        /// 字符串转换服务
        /// </summary>
        /// <param name="model">输入参数</param>
        [HttpPost("calculate")]
        [ProducesResponseType(200)]
        [ProducesResponseType(400)]
        public IActionResult Transform([FromBody] TestModel model)
        {
            if (!ModelState.IsValid) return BadRequest(ModelState);
            return Ok(new { Result = $"{model.AAA}-{model.BBB}".ToUpper() });
        }
    }
}

6.3 数据模型

    using System.ComponentModel.DataAnnotations;

    namespace ServerAPI3.Models
    {
        public class TestModel
        {
            [Required]
            [StringLength(100)]
            public string AAA { get; set; }

            [StringLength(200)]
            public string BBB { get; set; }
        }
    }

7.Ocelot的代码

7.1 Program.cs

using Ocelot.DependencyInjection;
using Ocelot.Middleware;

var builder = WebApplication.CreateBuilder(args);

// 强制指定 Kestrel 端口（优先级最高）
builder.WebHost.ConfigureKestrel(serverOptions =>
{
    serverOptions.ListenAnyIP(5010); // 监听所有IP的5010端口
});

builder.Configuration.AddJsonFile("ocelot.json", optional: false, reloadOnChange: true);
builder.Services.AddOcelot(builder.Configuration);

var app = builder.Build();
await app.UseOcelot();
app.Run();

7.2 ocelot.json

{
  "Routes": [
    {
      "DownstreamPathTemplate": "/api/values/{action}",
      "DownstreamScheme": "http",
      "DownstreamHostAndPorts": [
        {
          "Host": "192.168.0.102",
          "Port": 5000
        }, // ServerAPI1
        {
          "Host": "192.168.0.102",
          "Port": 5001
        } ,// ServerAPI2
        {
          "Host": "192.168.0.102",
          "Port": 5002
        } // ServerAPI3
      ],
      "UpstreamPathTemplate": "/balanced-api/values/{action}",
      "UpstreamHttpMethod": [ "GET", "POST" ],
      "LoadBalancerOptions": {
        "Type": "RoundRobin" // 轮询策略
      }
    }
  ],
  "GlobalConfiguration": {
    "BaseUrl": "http://192.168.0.102:5010"
  }
}

8.生成发布文件

8.1 选中发布项目，右键点击发布

8.2 选择文件发布，选择文件路径，部署模式为独立，目标运行时为win-x64。

8.3 生成publish文件

9.文件拷贝到服务器的制定目录下

10.点击5个文件夹内部的exe，即可运行；