.net core WebAPI 获取客户端IP的地址-Toy模板网

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一、通过静态扩展方法

1、写个扩展方法在控制器里面：
注：不能创建外部类，否则会报错，HttpContext必须是和带有继承ControllerBase的类一起才行

namespace WebAPI.Controllers
{
	public static class Extension
	{
	    /// <summary>
	    /// 获取客户Ip
	    /// </summary>
	    /// <param name="context"></param>
	    /// <returns></returns>
	    public static string GetClientUserIp(this HttpContext context)
	    {
	        var ip = context.Connection.RemoteIpAddress.MapToIPv4().ToString();
	        if (string.IsNullOrEmpty(ip))
	        {
	            ip = context.Connection.RemoteIpAddress.ToString();
	        }
	        return ip;
	    }
	}
	
	/// <summary>
    /// 首页控制器
    /// </summary>
    [Route("api/[controller]/[action]")]
    [ApiController]
	public class HomeController : ControllerBase
	{
		public HomeController()
		{
		
		}
		
		[HttpGet]
	    public string Index()
	    {
	    	var ip = HttpContext.GetClientUserIp();
	    	return ip;
	    }
	}
}

二、通过注入服务方式

1.在Startup.cs文件里注入服务：

public void ConfigureServices(IServiceCollection services)
{
    services.AddControllers();
    services.AddMvc();
	
	//注入Http
    services.AddSingleton<IHttpContextAccessor, HttpContextAccessor>();
}

2、去控制器里面写入：文章来源地址https://www.toymoban.com/news/detail-770733.html

/// <summary>
/// 首页控制器
/// </summary>
[Route("api/[controller]/[action]")]
[ApiController]
public class HomeController : ControllerBase
{
	//声明
	private readonly IHttpContextAccessor httpContextAccessor;
	
	public HomeController(IHttpContextAccessor IHttpContextAccessor)
	{
	    this.httpContextAccessor = IHttpContextAccessor;
	}
	
	[HttpGet]
    public string Index()
    {
    	string ip = httpContextAccessor.HttpContext.Connection.RemoteIpAddress.ToString();
    	//string ip = httpContextAccessor.HttpContext.Connection.RemoteIpAddress.MapToIPv4().ToString();
    	return ip;
    }
}