手持设备开发项目实例

之前开发手持设备(RF)在WINCE环境用EVC开发，在客户端在EVC用C开发客户端界面，通过socket通信调用

服务端，服务端中间件调用后台数据库存储过程，基本业务逻辑在存储过程中实现。

最近在.net环境通过http请求实现新一版的程序开发。服务端可以是.net，也可以是java的服务程序，业务

逻辑可以在程序中实现，同样也可以放在存储过程中实现。我这里服务端用的.net MVC框架来实现的。

客户端具体的代码如下。

HttpUtil 类

   1 using System;   2 using System.IO;   3 using System.Collections.Generic;   4 using System.Net;   5    6 namespace WMS   7 {   8 public sealed class HttpUtil   9 {  10 public int Timeout { get; set; }  11   12   13 public HttpUtil()  14 : this(100000)  15 {  16   17 }  18   19 public HttpUtil(int timeOut)  20 {  21 Timeout = timeOut;  22 }  23   24 public static T Post<T>(string reqUrl, object objParam)  25 {  26 HttpUtil httpClt = new HttpUtil(100000);  27   28 string responseContent = httpClt.Post(reqUrl, objParam);  29   30 if (!string.IsNullOrEmpty(responseContent))  31 return Json.Converter.Deserialize<T>(responseContent);   32 return default(T);  33 }  34   35 private string GetPostContent(object o)  36 {  37 if (o == null)  38 return null;  39   40 var parameters = new List<string>();  41 var t = o.GetType();  42 foreach (var pi in t.GetProperties())  43 {  44 var k = pi.Name;  45 if (pi.PropertyType.Name == "Int32[]")  46 {  47 var v = pi.GetValue(o, null);  48 if (v != null)  49 {  50 int[] ids = (int[])v;  51 for (int i = 0; i < ids.Length; i++)  52 parameters.Add(string.Format("{0}={1}", k + "[" + i + "]", ids[i]));  53 }  54 }  55 else  56 {  57 var v = pi.GetValue(o, null);  58 if (v != null)  59 parameters.Add(string.Format("{0}={1}", k, v));  60 }  61 }  62   63 return string.Join("&", parameters.ToArray());  64 }  65   66 private HttpWebRequest GetRequest(string url, string method, string postContent, string contentType)  67 {  68 HttpWebRequest req = WebRequest.Create(url) as HttpWebRequest;  69   70 req.AllowAutoRedirect = false;  71 req.Method = method;  72 req.ContentType = contentType;  73 req.Timeout = Timeout;  74 req.SendChunked = true;  75   76 return req;  77 }  78   79   80 public string Get(string url)  81 {  82 return Request(url, "GET", null);  83 }  84   85 public static T Get<T>(string url)  86 {  87 HttpUtil httpClt = new HttpUtil(10000);  88 string responseContent = httpClt.Get(url);  89   90 if (!string.IsNullOrEmpty(responseContent))  91 return Json.Converter.Deserialize<T>(responseContent);  92 return default(T);  93 }  94   95 public string Post(string url, object objParam)  96 {  97 return Request(url, "POST", GetPostContent(objParam));  98 }  99  100 public string Request(string url, string method, string postContent) 101 { 102 return Request(url, method, postContent, "application/x-www-form-urlencoded;charset=UTF-8"); 103 } 104  105 public string Request(string url, string method, string postContent, string contentType) 106 { 107  108 HttpWebRequest req = GetRequest(url, method, postContent, contentType); 109  110 //请求数据 111 if (string.Equals(method, "POST", StringComparison.InvariantCultureIgnoreCase)) 112 { 113 byte[] bytesToPost = System.Text.Encoding.UTF8.GetBytes(postContent); 114 req.ContentLength = bytesToPost.Length; 115  116 using (Stream s = req.GetRequestStream()) 117 { 118 s.Write(bytesToPost, 0, bytesToPost.Length); 119 } 120 } 121  122 using (HttpWebResponse responseObj = req.GetResponse() as HttpWebResponse) 123 { 124 using (Stream s = responseObj.GetResponseStream()) 125 { 126 using (StreamReader sr = new StreamReader(s)) 127 { 128 return sr.ReadToEnd(); 129 } 130 } 131 } 132  133 } 134 } 135 }    

login

   1 using System;   2 using System.Drawing;   3 using System.Runtime.InteropServices;   4 using System.Windows.Forms;    5    6 namespace WMS   7 {   8   public partial class Login : Form   9   {  10     public Login()  11     {  12       InitializeComponent();   13       txtName.Focus();  14     }  15   16     private void txtName_KeyDown(object sender, KeyEventArgs e)  17     {  18       if (e.KeyCode == Keys.Enter && !string.IsNullOrEmpty(txtName.Text))  19       {  20         lblMessage.Text = "";  21         txtPassword.Focus();  22         txtPassword.SelectAll();  23       }  24     }  25   26     private void txtPassword_KeyDown(object sender, KeyEventArgs e)  27     {  28       if (e.KeyCode == Keys.Enter && !string.IsNullOrEmpty(txtPassword.Text))  29       {  30         Login(txtName.Text.Trim(), txtPassword.Text.Trim());  31       }  32     }  33   34     private void btnLogin_Click(object sender, System.EventArgs e)  35     {  36       UserLogin(txtName.Text.Trim(), txtPassword.Text.Trim());  37     }  38   39     private void Login(string name, string password)  40     {  41       btnLogin.Enabled = false;  42       txtPassword.Enabled = false;  43   44       lblMessage.Text = "";  45       if (string.IsNullOrEmpty(name))  46       {  47         lblMessage.Text = "用户名不能为空！";  48         btnLogin.Enabled = true;  49         txtPassword.Enabled = true;  50         txtName.Focus();  51         txtName.SelectAll();  52         return;  53       }  54       if (string.IsNullOrEmpty(password))  55       {  56         lblMessage.Text = "密码不能为空！";  57         btnLogin.Enabled = true;  58         txtPassword.Enabled = true;  59         txtPassword.Focus();  60         txtPassword.SelectAll();  61         return;  62       }  63       try  64       {  65         HttpUtil.Post<ClientInfo>(url + "/Sys/Login", new  66         {  67           userName = name,  68           password = password  69         });  70         if (ClientInfo.User_Id == 0)  71         {  72           lblMessage.Text = "用户名或密码错误！";  73           btnLogin.Enabled = true;  74           txtPassword.Enabled = true;  75           txtName.Focus();  76           txtName.SelectAll();  77         }  78         else  79         {  80           Hide();  81           Menu fmMenu = new Menu();  82           fmMenu.ShowDialog();  83           fmMenu.MaximizeBox = true;  84         }  85       }  86       catch (Exception ex)  87       {  88         lblMessage.Text = ex.Message;  89         btnLogin.Enabled = true;  90         txtPassword.Enabled = true;  91         txtName.Focus();  92         txtName.SelectAll();  93       }  94     }  95   96        97   98     private void btnLogOut_Click(object sender, EventArgs e)  99     { 100       Hide(); 101       LoginOut fm = new LoginOut(); 102       fm.Show(); 103     } 104   } 105 }  服务端实现类   1 #region  2   3 using System;  4 using System.Web.Mvc;  5 using WMS.Enum;  6 using Wms.Utility;  7 using Wms.Services;   8 using Wms.DomainModel;   9 #endregion 10  11 namespace Wms.Controllers 12 { 13   [HandleError] 14   public class SysController : Controller 15   { 16       17  18     [HttpPost] 19     public string Login(string userName, string password) 20     { 21       ISys_UserService service = UnityHelper.GetInstance<ISys_UserService>("Wms"); 22       string result = service.Login(userName, password); 23       return result; 24     } 25   } 26 }    

如需要全部实现代码请联系 qq 1153755352