如何调用 asp.net core razor pages 项目中控制器中定义的函数

Question

我是 asp.net 核心的新手，我正在探索对控制器中定义的函数进行 api 调用的不同方法。

我有一个基本的新闻控制器，如下所示，如果我在这个控制器中只保留一个功能 GetAll() 那么我可以使用 https://localhost:44364/api/news[= 成功调用 api 16=]

并且当我添加其他两个函数时，相同的 https://localhost:44364/api/news 会收到如下错误消息，这很明显，因为我没有在我的 url.

中不提及函数名称

我的问题是如何为每个函数定义路由，以便我可以通过 url 和从 ajax 函数调用每个函数

错误

 BookListRazor.Controllers.NewsController.GetSingleNews (BookListRazor)
    BookListRazor.Controllers.NewsController.GetAll (BookListRazor)
    BookListRazor.Controllers.NewsController.GetAllNews (BookListRazor)

代码

 using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Threading.Tasks;
    using BookListRazor.Model;
    using Microsoft.AspNetCore.Mvc;
    using Microsoft.EntityFrameworkCore;

    namespace BookListRazor.Controllers
    {
        [Route("api/News")]
        [ApiController]
        public class NewsController : Controller
        {
            private readonly ApplicationDbContext _db;

            public NewsController(ApplicationDbContext db)
            {
                _db = db;
            }

            //get all news by languageID
            [HttpGet]
           // [Route("api/news/getallnews/{1}")]
            public async Task<IActionResult> GetAllNews(int langID)
            {
                //var query = await _db.News.OrderByDescending(x => x.NewsDate).Where(x => x.LanguageID == 1 && x.NewsActive==true && x.NewsVisible==true).ToListAsync();

                return Json(new { data = await _db.News.OrderByDescending(x => x.NewsDate).Where(x => x.LanguageID == langID && x.NewsActive == true && x.NewsVisible == true).ToListAsync() });
            }

            //get all news 
            [HttpGet]
            public async Task<IActionResult> GetAll()
            {
                return Json(new { data = await _db.News.OrderByDescending(x => x.NewsDate).Where(x => x.LanguageID == 1 && x.NewsActive == true && x.NewsVisible == true).ToListAsync() });
            }


            //get single news by newsID
            [HttpGet]
            public async Task<IActionResult> GetSingleNews(int id)
            {
                return Json(new { data = await _db.News.FirstOrDefaultAsync(x=>x.NewsID == id) });
            }

        }
    }

Answer 1

您可以为每个方法设置 [Route] 属性，

像这样

    public class TestController : Controller
    {
        [Route("api/Test")]
        public IActionResult Index1()
        {
            return Json("Hello World 1");
        }

        [Route("api/Test/Index2")]
        public IActionResult Index2()
        {
            return Json("Hello World 2");
        }
    }

请试一试，

希望对您有所帮助

Answer 2

您可以像下面这样更改：

[Route("api/News/[action]")]
[ApiController]

请求 url 如下所示：

//https://localhost:44364/api/news/GetAllNews?langID=1
[HttpGet]
public async Task<IActionResult> GetAllNews(int langID)
{
}

//https://localhost:44364/api/news/GetAll
[HttpGet]
public async Task<IActionResult> GetAll()
{       
}

//https://localhost:44364/api/news/GetSingleNews?id=1
[HttpGet]
public async Task<IActionResult> GetSingleNews(int id)
{       
}

如何调用 asp.net core razor pages 项目中控制器中定义的函数

How to call funtions defined in controller in asp.net core razor pages project

c#

asp.net

asp.net-core

razor-pages