毕业设计_图书管理系统一、数据库设计数据库设CREATE DATABASE TSGLGOUSE TSGLGOCREATE TABLE Bmanage(bId varchar(10) PRIMARY KEY,bName varchar(50),--添加图书--图书编号--书名bNumber varchar(10),--书数目)GObSore varchar(50)--分类CREATE TABLE Madmin(mName varchar(10)PRIMARY KEY,mPwd varchar(25),mAge varchar(8),mSex varchar(4),mNumber varchar(15),mrole varchar(8))GO--图书员管理--图书管理员姓名--图书管理员密码--图书管理员年龄--图书管理员性别--图书管理员电话--图书管理员角色CREATE TABLE Reader(rSno varchar(10) PRIMARY KEY,rName varchar(10),rPwd varchar(25),rAge varchar(8),rSex varchar(4),rState varchar(8),rNumber varchar(15),rEmail varchar(25),--读者信息表reader--读者号--姓名--密码--年龄--性别--状态--电话号码--电子邮件rAdress varChar(50),--地址) GO rGrade varChar(15),rClass varchar(15),rRole varchar(8)--年级--班级--角色CREATE TABLE Rrecord(rSno varchar(10) PRIMARY KEY, rName varChar(10),bId varchar(10),bName varChar(50),bTime varchar(10),bBackTime varchar(10))GOCREATE TABLE SysSet(rRole varchar(8)PRIMARY KEY,rState varchar(8),Fine float(25),rDay varchar(8)--读者编号学号--读者姓名--图书编号--图书名称--借书时间--还书时间--读者角色--读者可借书数--过期罚款设置--可借书天数)二、界面截图及说明1) 登录窗口（实现管理员和馆长的登陆）3) 馆长窗口5) 新增图书窗口6) 新增管理员、查找及修改窗口7) 新增读者、查找及修改窗口8) 图书的查找及修改窗口9) 借阅窗口10)系统设置窗口三、主要代码主要代1) 登录窗口（实现管理员和馆长的登陆）登陆检查：using System;usingusing System.Linq;using System.Text;using System.Data;usingnamespace{class clsLoginCheck{public static DataTable CheckLogin(string UserId,string PWD) {{string SQLstmt="selectmName,mPwd,mRolefromMadminwheremName='"+UserId +"'andmPwd='"+PWD+"'";DataTable dt=clsGlobalVar.GetDataTable(SQLstmt);return dt;}}}}登陆：using System;usingusing ponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;usingusingnamespace prjTSGL.TSGL_UI{public partial class frmLogin:Form{public frmLogin(){InitializeComponent();}private void btnLogin_Click(object sender,EventArgs e){stringstringstring type="";try{DataTable dt=clsLoginCheck.CheckLogin(strUserID,strPWD);if{MessageBox.Show("登陆失败，请重新输入!");loginpwd.Focus();return; }else{type=dt.Rows[0]["mRole"].ToString().Trim();if"馆长"){if(type=="馆长"){this.Hide();frmManager objManager=new frmManager(); objManager.Show();}else{MessageBox.Show("您没有权限！"); loginpwd.Focus();return;}}else{if(type=="管理员"){this.Hide();frmAdmin objAdmin=new frmAdmin(); objAdmin.Show();}else{MessageBox.Show("您没有权限！"); loginpwd.Focus();return;}}}}catch(Exception ex) {throw ex;}}private void btnExit_Click(object sender,EventArgs e) {this.Close();}}}2) 管理员窗口using System;usingusing ponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;usingnamespace prjTSGL.TSGL_UI{public partial class frmAdmin:Form{public frmAdmin(){InitializeComponent();}private void ShowForm(Form frmToShow){this.Cursor=Cursors.WaitCursor;foreach(Form frmChild in this.MdiChildren){if(frmChild.GetType()==frmToShow.GetType()) {frmToShow.Dispose();frmChild.Activate();this.Cursor=Cursors.Default;return;}}frmToShow.MdiParent=this;frmToShow.Show();this.Cursor=Cursors.Default;}private void读者信息修改ToolStripMenuItem_Click(object sender,EventArgs e){ShowForm(new frmUpdateReader());}private void新增图书ToolStripMenuItem_Click(object sender,EventArgs e){ShowForm(new frmAddNewBook());}private void图书的查找和修改ToolStripMenuItem_Click(object sender,EventArgs e) {ShowForm(new frmUpdateBook());}private void流通管理ToolStripMenuItem_Click(object sender,EventArgs e){ShowForm(new frmBorrow());}private void帮助ToolStripMenuItem_Click(object sender,EventArgs e) {ShowForm(new frmAbout());}private void退出ToolStripMenuItem_Click(object sender,EventArgs e) {Application.Exit();}}}3) 馆长窗口using System;usingusing ponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;usingnamespace prjTSGL.TSGL_UI{public partial class frmManager:Form {public frmManager(){InitializeComponent();}private void ShowForm(Form frmToShow){this.Cursor=Cursors.WaitCursor;foreach(Form frmChild in this.MdiChildren){if(frmChild.GetType()==frmToShow.GetType()){frmToShow.Dispose();frmChild.Activate();this.Cursor=Cursors.Default;return;}}frmToShow.MdiParent=this;frmToShow.Show();this.Cursor=Cursors.Default;}private void frmManager_FormClosed(object sender,FormClosedEventArgs e){Application.Exit();}private void管理员信息管理ToolStripMenuItem_Click_1(object sender,EventArgs e) {ShowForm(new frmSelectAdmin());}private void系统设置ToolStripMenuItem_Click_1(object sender,EventArgs e) {ShowForm(new frmSys());}private void关于ToolStripMenuItem_Click(object sender,EventArgs e){ShowForm(new frmAbout());}private void退出ToolStripMenuItem_Click_1(object sender,EventArgs e){Application.Exit();}}}4) 关于窗口using System;usingusing ponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;usingnamespace prjTSGL.TSGL_UI{public partial class frmAbout:Form{public frmAbout(){InitializeComponent();}private void button1_Click(object sender,EventArgs e){this.Close(); }}}5) 新增图书窗口using System;usingusing ponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;usingusingnamespace prjTSGL.TSGL_UI{public partial class frmAddNewBook:Form {public frmAddNewBook(){InitializeComponent();}private bool ValidatInput(){if(textBox1.Text==""){MessageBox.Show("请输入图书编号！","输入提示",MessageBoxButtons.OK, rmation);textBox1.Focus();return false;}if(textBox2.Text==""){MessageBox.Show("请输入图书名称！","输入提示",MessageBoxButtons.OK, rmation);textBox2.Focus();return false;}if(textBox3.Text==""){MessageBox.Show("请输入图书数目！","输入提示",MessageBoxButtons.OK,rmation);textBox3.Focus();return false;}if(comboBox1.Text==""){MessageBox.Show("请选择图书类别！","输入提示",MessageBoxButtons.OK, rmation);textBox3.Focus();return false;}return true;}private void btnOK_Click_1(object sender,EventArgs e){if(ValidatInput())//stringid=textBox1.Text;//stringname=textBox2.Text;//stringNumber=textBox3.Text;//stringsore=comboBox1.Text;string sql="SELECT*FROMBmanageWHEREbId='""'";DataTable dt=clsGlobalVar.GetDataTable(sql);if{string SQL="insertintoBmanage(bId,bName,bNumber,bSore)values('"+ "','"()+"','""','""')";try{bool result=clsGlobalVar.ExecSQL(SQL);if(result)MessageBox.Show("添加成功！","操作提示",MessageBoxButtons.OK, rmation);textBox1.Text="";textBox2.Text="";textBox3.Text="";comboBox1.Text="";textBox1.Focus();}else{MessageBox.Show("添加失败！","操作提示",MessageBoxButtons.OK, MessageBoxIcon.Error);}}catch(Exception ex){MessageBox.Show("操作数据库出错！","操作演示",MessageBoxButtons.OK,MessageBoxIcon.Error);Console.WriteLine(ex.Message);}}else{MessageBox.Show("图书编号已存在！","操作提示",MessageBoxButtons.OK, rmation);textBox1.Focus();}}}private void btnCancel_Click(object sender,EventArgs e){this.Close();}}}6) 新增管理员、查找及修改窗口using System;usingusing ponentModel; using System.Data;using System.Drawing;using System.Linq;using System.Text;usingusingnamespace prjTSGL.TSGL_UI{public partial class frmSelectAdmin:Form {public frmSelectAdmin(){InitializeComponent();}string name="";string SQL="";string PWD="";string Age="";string Sex="";string Tel="";string Role="";private void SelectAdmin(){string strfilter="";string SQL="selectmNameAS用户名,mPwdAS密码,mAgeAS年龄,mSexAS性别,mNumber AS电话,mRoleAS角色fromMadmin";if(txtName.Text=="")strfilter="";elsestrfilter="wheremName='""'";try{DataTable dt=clsGlobalVar.GetDataTable(SQL+strfilter);int intIndex=0;if{MessageBox.Show("抱歉，没有您要找的用户！","结果提示", MessageBoxButtons.OK,rmation);txtName.Text=""; txtPWD.Text=""; txtAge.Text=""; cboSex.Text=""; txtTel.Text=""; cboRole.Text=""; }else{{"序号",100,HorizontalAlignment.Center);for(int{HorizontalAlignment.Center);}for(int{intIndex=intI+1;LV.Items[intI].SubItems.Add(dt.Rows[intI]["用户名"].ToString().Trim());LV.Items[intI].SubItems.Add(dt.Rows[intI]["密码"].ToString().Trim());LV.Items[intI].SubItems.Add(dt.Rows[intI]["年龄"].ToString().Trim());LV.Items[intI].SubItems.Add(dt.Rows[intI]["性别"].ToString().Trim());LV.Items[intI].SubItems.Add(dt.Rows[intI]["电话"].ToString().Trim());LV.Items[intI].SubItems.Add(dt.Rows[intI]["角色"].ToString().Trim());}}}}//连接数据库，将数据读取出放入MadminDatacatch(Exception ex){MessageBox.Show("查询数据库出错！","提示",MessageBoxButtons.OK, MessageBoxIcon.Error);Console.WriteLine(ex.Message);}}private void btnSearch_Click(object sender,EventArgs e) {SelectAdmin();//调用函数}//实现修改功能private void btnUpdata_Click(object sender,EventArgs e){if(txtName.Text==""||cboRole.Text==""){MessageBox.Show("请选择要修改的用户!");}else{SQL="UPDATEMadminSETmName='""',mPwd='"+"',mAge='""',mSex='""',mNumber='""',mRole='""'wheremName='"+name+"'ANDmPwd='"+PWD+"'ANDmAge='"+Age+"'ANDmSex='"+Sex+"'ANDmNumber='"+Tel+"'AND mRole='"+Role+"'";try{bool result=clsGlobalVar.ExecSQL(SQL);if(result){//txtName.Text="";txtPWD.Text="";txtAge.Text="";cboSex.Text="";txtTel.Text="";cboRole.Text="";MessageBox.Show("修改已成功"); SelectAdmin();}else{MessageBox.Show("更新失败！","操作提示",MessageBoxButtons.OK, MessageBoxIcon.Error);}}catch(Exception ex){MessageBox.Show("操作数据库出错！","操作演示",MessageBoxButtons.OK, MessageBoxIcon.Error);Console.WriteLine(ex.Message);}}}private void btnExit_Click(object sender,EventArgs e){this.Close();}private void LV_SelectedIndexChanged_1(object sender,EventArgs e){}private void frmSelectAdmin_Load(object sender,EventArgs e){this.btnSearch_Click(sender,e);}private void btnAdd_Click(object sender,EventArgs e){if(txtName.Text==""||txtPWD.Text==""||txtAge.Text==""||cboSex.Text== ""||txtTel.Text==""||cboRole.Text==""){}MessageBox.Show("请至少输入用户名，密码和角色!");else{SQL="SELECTmName,mPwd,mAge,mSex,mNumber,mRolefromMadminWHEREmName='"+ "'";DataTable dt=clsGlobalVar.GetDataTable(SQL);if{SQL="INSERTINTOMadminVALUES('""','"+"','""','""','"+"','""')";if(clsGlobalVar.ExecSQL(SQL)==true){//txtName.Text="";txtPWD.Text="";txtAge.Text="";cboSex.Text="";txtTel.Text="";cboRole.Text="";MessageBox.Show("成功添加新管理员!");SelectAdmin();}else{Exception ex=new Exception();MessageBox}}else{MessageBox.Show("用户名已存在，请选择其他用户名！","结果提示",MessageBoxButtons.OK,rmation); txtName.Text="";}}}private void btnDelete_Click(object sender,EventArgs e) {。