我写了一个服务器／客户端模式的局域网内的类似ＱＱ的聊天系统．
可以进行注册与登陆．
在登陆时客户端总是没有响应．
请教大家帮忙看一下．
数据库是用的ＳＱＬ２０００ 下面建立了一个myqq的数据库．在ＪＢＺＬ表里面包含若干列．其中USERID与pw为用户帐号与密码．已经写入的帐号密码为 1000 1000．
下面是原代码．
客户端：
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Net;
using System.Net.Sockets;
using System.IO;
using System.Text;
namespace mc
{
/// <summary>
/// Form1 的摘要说明。
/// </summary>
public class Form1 : System.Windows.Forms.Form
{
private System.Windows.Forms.Label label1;
private System.Windows.Forms.Label label2;
private System.Windows.Forms.Label label3;
private System.Windows.Forms.TextBox textBox1;
private System.Windows.Forms.TextBox textBox2;
private System.Windows.Forms.TextBox textBox3;
private System.Windows.Forms.Label label4;
private System.Windows.Forms.TextBox textBox4;
private System.Windows.Forms.Button button1;
private System.Windows.Forms.Button button2;
private string str,str1;
/// <summary>
/// 必需的设计器变量。
/// </summary>
private System.ComponentModel.Container components = null;
public Form1()
{
//
// Windows 窗体设计器支持所必需的
//
InitializeComponent();
//
// TODO: 在 InitializeComponent 调用后添加任何构造函数代码
//
}
/// <summary>
/// 清理所有正在使用的资源。
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
#region Windows 窗体设计器生成的代码
/// <summary>
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
/// 此方法的内容。
/// </summary>
private void InitializeComponent()
{
this.label1 = new System.Windows.Forms.Label();
this.label2 = new System.Windows.Forms.Label();
this.label3 = new System.Windows.Forms.Label();
this.textBox1 = new System.Windows.Forms.TextBox();
this.textBox2 = new System.Windows.Forms.TextBox();
this.textBox3 = new System.Windows.Forms.TextBox();
this.label4 = new System.Windows.Forms.Label();
this.textBox4 = new System.Windows.Forms.TextBox();
this.button1 = new System.Windows.Forms.Button();
this.button2 = new System.Windows.Forms.Button();
this.SuspendLayout();
//
// label1
//
this.label1.Location = new System.Drawing.Point(8, 7);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(80, 23);
this.label1.TabIndex = 0;
this.label1.Text = "帐号";
this.label1.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
//
// label2
//
this.label2.Location = new System.Drawing.Point(8, 47);
this.label2.Name = "label2";
this.label2.Size = new System.Drawing.Size(80, 23);
this.label2.TabIndex = 1;
this.label2.Text = "密码";
this.label2.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
//
// label3
//
this.label3.Location = new System.Drawing.Point(8, 95);
this.label3.Name = "label3";
this.label3.Size = new System.Drawing.Size(80, 23);
this.label3.TabIndex = 2;
this.label3.Text = "服务器IP";
this.label3.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
//
// textBox1
//
this.textBox1.Location = new System.Drawing.Point(128, 8);
this.textBox1.Name = "textBox1";
this.textBox1.TabIndex = 3;
this.textBox1.Text = "";
//
// textBox2
//
this.textBox2.Location = new System.Drawing.Point(128, 48);
this.textBox2.Name = "textBox2";
this.textBox2.TabIndex = 4;
this.textBox2.Text = "";
//
// textBox3
//
this.textBox3.Location = new System.Drawing.Point(128, 96);
this.textBox3.Name = "textBox3";
this.textBox3.TabIndex = 5;
this.textBox3.Text = "";
//
// label4
//
this.label4.Location = new System.Drawing.Point(8, 127);
this.label4.Name = "label4";
this.label4.Size = new System.Drawing.Size(80, 23);
this.label4.TabIndex = 6;
this.label4.Text = "服务器端口";
this.label4.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
//
// textBox4
//
this.textBox4.Location = new System.Drawing.Point(128, 128);
this.textBox4.Name = "textBox4";
this.textBox4.TabIndex = 7;
this.textBox4.Text = "";
//
// button1
//
this.button1.Location = new System.Drawing.Point(168, 176);
this.button1.Name = "button1";
this.button1.TabIndex = 8;
this.button1.Text = "登陆";
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// button2
//
this.button2.Location = new System.Drawing.Point(32, 176);
this.button2.Name = "button2";
this.button2.TabIndex = 9;
this.button2.Text = "注册";
this.button2.Click += new System.EventHandler(this.button2_Click);
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
this.ClientSize = new System.Drawing.Size(292, 221);
this.Controls.Add(this.button2);
this.Controls.Add(this.button1);
this.Controls.Add(this.textBox4);
this.Controls.Add(this.label4);
this.Controls.Add(this.textBox3);
this.Controls.Add(this.textBox2);
this.Controls.Add(this.textBox1);
this.Controls.Add(this.label3);
this.Controls.Add(this.label2);
this.Controls.Add(this.label1);
this.Name = "Form1";
this.Text = "Form1";
this.ResumeLayout(false);
}
#endregion
/// <summary>
/// 应用程序的主入口点。
/// </summary>
[STAThread]
static void Main()
{
Application.Run(new Form1());
}
private void button1_Click(object sender, System.EventArgs e)
{
str1="login";
str=str1+","+textBox1.Text+","+textBox2.Text;
TcpClient tcp1=new TcpClient();
tcp1.Connect(textBox3.Text,Int32.Parse(textBox4.Text));
Stream stm=tcp1.GetStream(); //得到客户端的流
//向服务器发送字符串
ASCIIEncoding asen=new ASCIIEncoding();
byte []b=asen.GetBytes(str);
stm.Write(b,0,b.Length);
//接收服务器返回信息
byte []bb=new byte[100];
int k=stm.Read(bb,0,100);
string st=System.Text.Encoding.UTF8.GetString(bb);
textBox1.Text=st;
string str2=textBox1.Text;
if(str2=="right")
{
Form3 child=new Form3();
child.Show();
}
else if(str2=="wrong")
{
MessageBox.Show("error");
}
}
private void button2_Click(object sender, System.EventArgs e)
{
Form2 child=new Form2();
child.Show();
}
}
}
