(7) 添加控制器

在添加控制器前，先增加一些用到的类

codeutilsMyResult.cs

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

namespace core_admin.utils
{
    public class MyResult
    {
        public string result { get; set; }

        public string err_msg { get; set; }

        public int total { get; set; }

        public int page_size {get;set;}

        public int page_id {get;set;}

        public object data { get; set; }

        public Hashtable viewbag { get; set; }
    }
}

codeutilsStringHelper.cs

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

namespace core_admin.utils
{
    public class StringHelper
    {


        public static string byteToBase64(byte[] b)
        {
            return System.Convert.ToBase64String(b);
        }

        public static byte[] base64ToByte(string b)
        {
            return System.Convert.FromBase64String(b);
        }

        public static object Convert(string str, string type)
        {
            switch (type)
            {
                case "string":
                    return str;
                case "int":
                    return Int32.Parse(str);
                case "long":
                    return Int64.Parse(str);
                case "DateTime":
                    try
                    {
                        return DateTime.Parse(str);
                    } catch (Exception ex)
                    {
                        Console.WriteLine(ex.StackTrace);
                        return DateTime.Now;
                    }
            }
            return "";
        }
        public static string showIfNotEmpty(string words,string all)
        {
            if (string.IsNullOrEmpty(words))
            {
                return "";
            }
            else
                return all;
        }

        public static string formatNumber(long num)
        {
            string str = num.ToString();
            string ret = "";
            int i = str.Length;
            while(i%3!=0){
                i=i+1;
                str =  " "+str;
            }
            for(int j=0;j0){
                    ret += ",";
                }
                ret += str.Substring(j,3);
            }
            
            return ret;
        }
    }
}

codeutilsPagerHelper.cs

using System.Text; namespace core_admin.utils { public class PagerHelper{ public static string getPagerHtml(int page_id,int page_size,int total,string url){ StringBuilder sb = new StringBuilder(); int page_count = total % page_size==0? total / page_size : total / page_size + 1; string a_url = url ; string b_url = url; string first_url = url; if(url.IndexOf("?")!=-1){ a_url = url + "&page_id="+(page_id-1).ToString(); b_url = url + "&page_id="+(page_id+1).ToString(); first_url = url + "&page_id=1"; } else { a_url = url + "?page_id="+(page_id-1).ToString(); b_url = url + "?page_id="+(page_id+1).ToString(); first_url = url + "?page_id=1"; } if(page_id==1){ sb.Append("
Previous
"); sb.Append("
1
"); } else { sb.Append("
Previous
"); sb.Append("
1
"); } bool in_ingore = false; for(int i=2;i<=page_count;i++){ if(url.IndexOf("?")!=-1){ a_url = url + "&page_id="+i.ToString(); } else { a_url = url + "?page_id="+i.ToString(); } int distance = i-page_id; if(distance<0){ distance = -distance; } if(distance<=7||page_count==i){ if(i==page_id){ sb.Append("
"+i.ToString()+"
"); } else { sb.Append("
"+i.ToString()+"
"); } in_ingore = false; } else { if(in_ingore==false){ sb.Append("
"+"..."+"
"); in_ingore = true; } } } if(page_id==page_count){ sb.Append("
Next
"); } else { sb.Append("
Next
"); } return sb.ToString(); } } }

codeutilsEncryp.cs

using System; using System.Data; using System.Configuration; using System.Web; using System.IO; using System.Security.Cryptography; using System.Text; namespace core_admin.utils { public class Encryp { public static string Get_MD5(string strSource) { System.Security.Cryptography.MD5 md5 = new System.Security.Cryptography.MD5CryptoServiceProvider(); //获取密文字节数组 byte[] bytResult = md5.ComputeHash(System.Text.Encoding.Default.GetBytes(strSource)); //转换成字符串，并取9到25位 string strResult = BitConverter.ToString(bytResult, 4, 8); //转换成字符串，32位 //string strResult = BitConverter.ToString(bytResult); //BitConverter转换出来的字符串会在每个字符中间产生一个分隔符，需要去除掉 strResult = strResult.Replace("-", ""); return strResult; } public static string GetFileMD5(string filepath) { FileStream fs = new FileStream(filepath, FileMode.Open, FileAccess.Read, FileShare.Read); int bufferSize = 1048576; byte[] buff = new byte[bufferSize]; MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider(); md5.Initialize(); long offset = 0; while (offset < fs.Length) { long readSize = bufferSize; if (offset + readSize > fs.Length) readSize = fs.Length - offset; fs.Read(buff, 0, Convert.ToInt32(readSize)); if (offset + readSize < fs.Length) md5.TransformBlock(buff, 0, Convert.ToInt32(readSize), buff, 0); else md5.TransformFinalBlock(buff, 0, Convert.ToInt32(readSize)); offset += bufferSize; } if (offset >= fs.Length) { fs.Close(); byte[] result = md5.Hash; md5.Clear(); StringBuilder sb = new StringBuilder(32); for (int i = 0; i < result.Length; i++) sb.Append(result[i].ToString("X2")); return sb.ToString(); } else { fs.Close(); return null; } } } }

补充两个包引用：

dotnet add package System.Drawing.Common dotnet add package MetadataExtractor

在MyWebApp.csproj里增加了

ControllersAdminBlogController.cs

using System; using System.Collections.Generic; using Microsoft.AspNetCore.Mvc; using Newtonsoft.Json; using System.Collections; using core_admin.db; using core_admin.utils; using core_admin.i; using core_admin.m; using core_admin.d; using Autofac; namespace core_admin.Controllers { public class AdminBlogController : Controller { [HttpGet] public IActionResult Index(int page_id = 1,string filter="") { int total = 0; MyResult r = new MyResult(); Hashtable viewbag = new Hashtable(); viewbag.Add("filter", filter); using (var scope = AutofacConfig.Container.BeginLifetimeScope()) { IBlog c = scope.Resolve(); Filter f = new Filter(); Hashtable containSet = new Hashtable(); containSet.Add("filter", filter); f.containSet = containSet; List list = c.GetList(f, page_id, WebHelper.page_size, out total); r.total = total; r.page_id = page_id; r.page_size = WebHelper.page_size; r.result = "success"; r.data = list; r.viewbag = viewbag; } SessionHelper helper = new SessionHelper(HttpContext); helper.SetSession("filter",filter); helper.SetSession("page_id",page_id.ToString()); return View(r); } [HttpGet] public IActionResult Add() { return View(); } [HttpPost] public string EditSave() { try { long i_blog_id = (long)StringHelper.Convert(Request.Form["blog_id"],"long"); using (var scope = AutofacConfig.Container.BeginLifetimeScope()) { IBlog c = scope.Resolve(); blog bean = c.Get(i_blog_id); if (bean == null) { return "未找到编辑项"; } bean.blog_title = (string)StringHelper.Convert(Request.Form["blog_title"], "string"); bean.blog_image = (string)StringHelper.Convert(Request.Form["blog_image"], "string"); bean.blog_desc = (string)StringHelper.Convert(Request.Form["blog_desc"], "string"); bean.blog_content = (string)StringHelper.Convert(Request.Form["blog_content"], "string"); bean.blog_content_text = (string)StringHelper.Convert(Request.Form["blog_content_text"], "string"); bean.add_date = (DateTime)StringHelper.Convert(Request.Form["add_date"], "DateTime"); bean.blog_sort = (int)StringHelper.Convert(Request.Form["blog_sort"], "int"); bean.blog_tags = (string)StringHelper.Convert(Request.Form["blog_tags"], "string"); c.Update(bean); } } catch (Exception ex) { return ex.Message; } return "success"; } public IActionResult Ret(){ SessionHelper helper = new SessionHelper(HttpContext); string filter = helper.GetSession("filter"); string page_id = helper.GetSession("page_id"); if(page_id==""){ page_id = "1"; } return RedirectToAction("Index",new {filter=filter,page_id=page_id}); } [HttpPost] public string AddSave() { try { blog bean = new blog(); using (var scope = AutofacConfig.Container.BeginLifetimeScope()) { IBlog c = scope.Resolve(); bean.blog_title = (string)StringHelper.Convert(Request.Form["blog_title"], "string"); bean.blog_image = (string)StringHelper.Convert(Request.Form["blog_image"], "string"); bean.blog_desc = (string)StringHelper.Convert(Request.Form["blog_desc"], "string"); bean.blog_content = (string)StringHelper.Convert(Request.Form["blog_content"], "string"); bean.blog_content_text = (string)StringHelper.Convert(Request.Form["blog_content_text"], "string"); bean.add_date = (DateTime)StringHelper.Convert(Request.Form["add_date"], "DateTime"); bean.blog_sort = (int)StringHelper.Convert(Request.Form["blog_sort"], "int"); bean.blog_tags = (string)StringHelper.Convert(Request.Form["blog_tags"], "string"); c.Insert(bean); } } catch (Exception ex) { return ex.Message; } return "success"; } [HttpGet] public IActionResult Edit(string blog_id) { MyResult r = new MyResult(); Hashtable viewbag = new Hashtable(); Filter filter = new Filter(); r.result = "error"; r.viewbag = viewbag; using (var scope = AutofacConfig.Container.BeginLifetimeScope()) { IBlog c = scope.Resolve(); blog bean = c.Get((long)StringHelper.Convert(blog_id, "long")); if (bean != null) { r.result = "success"; r.data = bean; } else { r.err_msg = "未找到数据"; } } return View(r); } [HttpGet] public IActionResult Detail(string blog_id) { MyResult r = new MyResult(); Hashtable viewbag = new Hashtable(); Filter filter = new Filter(); r.result = "error"; r.viewbag = viewbag; using (var scope = AutofacConfig.Container.BeginLifetimeScope()) { IBlog c = scope.Resolve(); blog bean = c.Get((long)StringHelper.Convert(blog_id, "long")); if (bean != null) { r.result = "success"; r.data = bean; } else { r.err_msg = "未找到数据"; } } return View(r); } [HttpGet] public string Delete(string blog_id) { MyResult result = new MyResult(); result.result = "error"; using (var scope = AutofacConfig.Container.BeginLifetimeScope()) { IBlog c = scope.Resolve(); blog bean = c.Get((long)StringHelper.Convert(blog_id, "long")); if (bean != null) { c.Delete((long)StringHelper.Convert(blog_id, "long")); result.result = "success"; } else { result.err_msg = "未找到要删除的数据"; } } return JsonConvert.SerializeObject(result); } } }

(7) 添加控制器

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