少有人走的路

勇哥注：

主要是阅读时的代码由java转为C#。

（一）简单示例

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApplication7
{
    class Program
    {
        static void Main(string[] args)
        {
            var movie = new MovieLister();
            var list= movie.MoviesDirectedBy("史蒂文·斯皮尔伯格");

            foreach(var m in list)
            {
                Console.WriteLine($"{m.movieName}\t{m.director}");
            }
            Console.ReadKey();
        }
    }

    public class MovieLister
    {
        private MovieFinder finder;

        public MovieLister()
        {
            finder = new ColonDelimitedMovieFinder("movie.txt");
        }

        public List<Movie> MoviesDirectedBy(string arg)
        {
            var allMovies = finder.findAll();
            var list2 =new List<Movie>();
            foreach (var m in allMovies)
            {
                if(m.director == arg)
                {
                    list2.Add(new Movie() { movieName = m.movieName, director = m.director });
                }
            }
            return list2;
        }
    }

    public class ColonDelimitedMovieFinder: MovieFinder
    {
        private string fnamePath = "";

        public ColonDelimitedMovieFinder(string name)
        {
            this.fnamePath = name;
        }

        public List<Movie> findAll()
        {
            var list = new List<Movie>();
            var txt= File.ReadAllText(this.fnamePath).Split(new string[] { "\n" },StringSplitOptions.RemoveEmptyEntries);

            foreach(var m in txt)
            {
                var ary = m.Split(',');
                if (ary.Length == 2)
                {
                    list.Add(new Movie() { movieName = ary[0].Trim(), director = ary[1].Trim() });
                }
            }
            return list;
        }
    }

    public class Movie
    {
        /// <summary>
        /// 影片名
        /// </summary>
        public string movieName { get; set; }
        /// <summary>
        /// 导演
        /// </summary>
        public string director { get; set; }

      
    }

    public interface MovieFinder
    {
        List<Movie> findAll();
    }



}

/*
movie.txt

星球大战,乔治·卢卡斯
教父,弗朗西斯·福特·科波拉
肖申克的救赎,弗兰克·德拉邦特
阿甘正传,罗伯特·泽米吉斯
楚门的世界,彼得·威尔
泰坦尼克号,詹姆斯卡梅隆
罗马假日,威廉·惠勒
黑暗骑士,克里斯托弗·诺兰
疯狂原始人,埃米尔·库斯图里卡
辛德勒的名单,史蒂文·斯皮尔伯格
侏罗纪公园,史蒂文·斯皮尔伯格
夺宝奇兵,史蒂文·斯皮尔伯格
拯救大兵瑞恩,史蒂文·斯皮尔伯格

*/

（二）控制反转

using Autofac;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApplication7
{
    class Program
    {

        static void Main(string[] args)
        {

            var builder = new ContainerBuilder();
            builder.RegisterType<ColonDelimitedMovieFinder>().As<IMovieFinder>().UsingConstructor(typeof(string));
           
            var container = builder.Build();
            using (var ioc = container.BeginLifetimeScope())
            {
                var service = ioc.Resolve<IMovieFinder>(new NamedParameter("name","movie.txt"));
                var movie = new MovieLister(service);
                var list = movie.MoviesDirectedBy("史蒂文·斯皮尔伯格");

                foreach (var m in list)
                {
                    Console.WriteLine($"{m.movieName}\t{m.director}");
                }
            }
            Console.ReadKey();
        }
    }



    public class MovieLister
    {
        private IMovieFinder finder;

        public MovieLister(IMovieFinder _finder)
        {
            this.finder = _finder;
        }

        public List<Movie> MoviesDirectedBy(string arg)
        {
            var allMovies = finder.findAll();
            var list2 = new List<Movie>();
            foreach (var m in allMovies)
            {
                if (m.director == arg)
                {
                    list2.Add(new Movie() { movieName = m.movieName, director = m.director });
                }
            }
            return list2;
        }
    }

    public class ColonDelimitedMovieFinder : IMovieFinder
    {
        private string fnamePath = "";

        public ColonDelimitedMovieFinder(string name)
        {
            this.fnamePath = name;
        }

        public List<Movie> findAll()
        {
            var list = new List<Movie>();
            var txt = File.ReadAllText(this.fnamePath).Split(new string[] { "\n" }, StringSplitOptions.RemoveEmptyEntries);

            foreach (var m in txt)
            {
                var ary = m.Split(',');
                if (ary.Length == 2)
                {
                    list.Add(new Movie() { movieName = ary[0].Trim(), director = ary[1].Trim() });
                }
            }
            return list;
        }
    }

    public class Movie
    {
        /// <summary>
        /// 影片名
        /// </summary>
        public string movieName { get; set; }
        /// <summary>
        /// 导演
        /// </summary>
        public string director { get; set; }


    }

    public interface IMovieFinder
    {
        List<Movie> findAll();
    }



}

未完待续。。。

autoFac教程：

依赖注入和控制反转的使用

https://www.cnblogs.com/yanbigfeg/archive/2018/10/28/9855960.html

Autofac支持配置文件

https://www.cnblogs.com/yakniu/p/16282880.html

--------------------- 

作者：hackpig

来源：www.skcircle.com

版权声明：本文为博主原创文章，转载请附上博文链接！

本文出自勇哥的网站《少有人走的路》wwww.skcircle.com，转载请注明出处！讨论可扫码加群：