项目搭建篇：数据接口

Dear 丶 2021-06-24 16:11 538阅读 0赞

开始之前新建github代码库：  
[https://github.com/956159241/MyBlogNew.git][https_github.com_956159241_MyBlogNew.git]  
数据接口：

新建mvc 4项目，选择web api，更改项目结构，参照：  
[http://www.jianshu.com/p/ace233099692][http_www.jianshu.com_p_ace233099692]

添加实体数据模型，参照（code first），创建表类，和联系上下文类：  
[http://www.jianshu.com/p/3858f56e6f0d][http_www.jianshu.com_p_3858f56e6f0d]

文件结构：

![2789632-c7e0f2748d179a74.png][]

bll:作为中间处理层  
dal：数据处理层  
Controler：接口  
models：放置返回给前端的实体  
entity：放置表类  
首先创建博客的主题，和导航，两张表  
theme，navigation  
支持多个get，post等接口方法：  
[http://www.jianshu.com/p/15736010bf67][http_www.jianshu.com_p_15736010bf67]  
创建一个IndexController,先写两个接口：获取博客主题，获取导航列表,之后再做规范……  
代码：

using System;
    using MyBlogNew.Models;
    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Net;
    using System.Net.Http;
    using System.Text;
    using System.Web;
    using System.Web.Http;
    using System.Web.Mvc;
    using MyBlogNew.Common;
    using MyBlogNew.Entity;
    
    namespace MyBlogNew.Controllers
    {
        public class IndexController : ApiController
        {
            /// <summary>
            /// 获取博客主题
            /// </summary>
            /// <returns></returns>
            public theme GetTheme()
            {
                try
                {
                    using (var entity = new MyBlogNewEntities())
                    {
                        theme them = entity.themes.FirstOrDefault();
                        return them;
                    }
                }
                catch (Exception ex)
                {
                    throw (ex);
                }
    
            }
            /// <summary>
            /// 获取导航列表
            /// </summary>
            /// <returns></returns>
            public List<navigation> GetNavigation()
            {
                try
                {
                    using (var entity = new MyBlogNewEntities())
                    {
                        List<navigation> ls_nav = entity.navigations.ToList();                  
                        return ls_nav;
                    }
                }
                catch (Exception ex)
                {
                    throw (ex);
                }
            }
        
    
        }
    }

![2789632-913410115287871f.png][]

![2789632-a273a7c883974209.png][]

发布在iis上面，之后进行前端数据接收的代码编写。

[https_github.com_956159241_MyBlogNew.git]: https://link.jianshu.com?t=https://github.com/956159241/MyBlogNew.git
[http_www.jianshu.com_p_ace233099692]: https://www.jianshu.com/p/ace233099692
[http_www.jianshu.com_p_3858f56e6f0d]: https://www.jianshu.com/p/3858f56e6f0d
[2789632-c7e0f2748d179a74.png]: /images/20210615/30b8a97a2bca44188d752203643e8f40.png
[http_www.jianshu.com_p_15736010bf67]: https://www.jianshu.com/p/15736010bf67
[2789632-913410115287871f.png]: /images/20210615/c593d9a156dd4956ac58a9bfb99f3e7c.png
[2789632-a273a7c883974209.png]: /images/20210615/e8c98a49a9624605a647956cd0814d13.png