本文demo下载地址:http://www.wisdomdd.cn/Wisdom/resource/articleDetail.htm?resourceId=1068
实例使用C# 实现基于角色的权限菜单管理系统, 管理员可以添加用户,删除用户, 添加分组,删除分组, 添加角色,删除角色,为角色关联权限等功能, 管理员用户自定义各个操作员的权限菜单标题
项目对应的实例代码可以通过右侧【下载实例】按钮获取
开发工具: VS2012 数据库: SQLServer
【项目包含内容】(见下图):
【实例代码】
【DBScript】 脚本
【WinForm中实现基于角色的权限菜单详解.txt】 代码详解
【实例简介】
C# WinForm中实现基于角色的权限菜单的完整源码,数据库脚本在DBscript目录下,在sql server 依次执行如下脚本即可
执行完毕后 修改下 app.config中的数据库连接串 为你本机的即可
【实例截图】
下面为管理员登陆后的效果
管理员账号:admin
密码:666666
下面为普通用户登陆后的效果:
普通用户名:user 密码 111111
【核心代码】
/// <summary>
/// 根据操作员名称和密码获取操作员实体
/// </summary>
/// <param name="name">操作员名称</param>
/// <param name="pwd">操作员密码</param>
/// <returns>操作员实体</returns>
public Model.Operator GetOperatorInfoByName(string name, string pwd)
{
//SQL命令
string sqltxt = string.Format( "Select Id, OperatorName, Password, RightsList, State From Operator Where OperatorName = '{0}' And Password = '{1}'" , name, pwd);
//创建操作员实体
Model.Operator tmpOperator = new Model.Operator();
// 转换数据库存储的 二进制数据为 Byte[] 数组 以便进而转换为操作员权限集合
// 从配置文件读取连接字符串
string connectionString = ConfigurationManager.ConnectionStrings[ "SQLSERVER" ].ConnectionString;
// 执行 SQL 命令
using (SqlConnection conn = new SqlConnection(connectionString))
{
SqlCommand cmd = new SqlCommand(sqltxt, conn);
conn.Open();
using (SqlDataReader myReader = cmd.ExecuteReader(
CommandBehavior.CloseConnection |
CommandBehavior.SingleResult |
CommandBehavior.SingleRow))
{
if (myReader.Read())
{
//将数据集转换成实体集合
tmpOperator.Id = Convert.ToInt32(myReader[ "Id" ]);
tmpOperator.ModelName = Convert.ToString(myReader[ "OperatorName" ]);
tmpOperator.Password = Convert.ToString(myReader[ "Password" ]);
tmpOperator.State = Convert.ToBoolean(myReader[ "State" ]);
// 读取权限集合
System.Data.SqlTypes.SqlBytes bytes = myReader.GetSqlBytes( 3 ); // 只能指定列序号
// 将流反序列化为权限集合对象
BinaryFormatter bf = new BinaryFormatter();
if (!bytes.IsNull)
tmpOperator.RightsCollection = (bf.Deserialize(bytes.Stream) as Dictionary<string, Model.Rights>);
//else
// throw new Exception(string.Format("操作员 [{0}] 没有任何权限,禁止登录!", tmpOperator.ModelName));
}
else
//如果没有读取到内容则抛出异常
throw new Exception( "登录名称或用户密码不正确!" );
}
}
// 如果操作员已经被禁用
if (!tmpOperator.State)
throw new Exception(string.Format( "操作员 [{0}] 已被禁用,请与管理员联系!" , tmpOperator.ModelName));
// 返回结果
return tmpOperator;
}
/// <summary>
/// 添加操作员
/// </summary>
/// <param name="addOperator">要添加的操作员实体</param>
/// <returns>True:成功/False:失败</returns>
public bool AddOperator(Model.Operator addOperator)
{
// 验证密码长度
if (addOperator.Password.Trim().Length < 6 )
throw new Exception( "用户密码长度不能小于六位!" );
// 转换操作员权限集合为数据库可存取的 Byte[] 数组
MemoryStream ms = new MemoryStream();
BinaryFormatter bf = new BinaryFormatter();
bf.Serialize(ms, addOperator.RightsCollection);
byte [] rigthsByteArray = new byte [( int )(ms.Length)];
ms.Position = 0 ;
ms.Read(rigthsByteArray, 0 , ( int )(ms.Length));
ms.Close();
// 拼接 SQL 命令
string sqlTxt = "Insert Into Operator (OperatorName, Password, RightsList, State) Values "
"(@OperatorName, @Password, @RightsList, @State)" ;
// 从配置文件读取连接字符串
string connectionString = ConfigurationManager.ConnectionStrings[ "SQLSERVER" ].ConnectionString;
// 执行 SQL 命令
using (SqlConnection conn = new SqlConnection(connectionString))
{
SqlCommand cmd = new SqlCommand(sqlTxt, conn);
SqlParameter prm1 = new SqlParameter( "@OperatorName" , SqlDbType.NVarChar, 50 );
prm1.Value = addOperator.ModelName;
SqlParameter prm2 = new SqlParameter( "@Password" , SqlDbType.NVarChar, 50 );
prm2.Value = addOperator.Password;
SqlParameter prm3 = new SqlParameter( "@RightsList" , SqlDbType.VarBinary, rigthsByteArray.Length,
ParameterDirection.Input, false , 0 , 0 , null , DataRowVersion.Current, rigthsByteArray);
SqlParameter prm4 = new SqlParameter( "@State" , SqlDbType.Bit);
prm4.Value = addOperator.State;
cmd.Parameters.AddRange( new SqlParameter[] { prm1, prm2, prm3, prm4 });
conn.Open();
if (cmd.ExecuteNonQuery() >= 1 )
return true ;
else
return false ;
}
}
/// <summary>
/// 删除操作员
/// </summary>
/// <param name="id">要删除的操作员 ID</param>
/// <returns>True:成功/False:失败</returns>
public bool DeleteOperatorByID( int id)
{
// 删除单个信息 SQL 命令
string sqlTxt = string.Format( "Delete From Operator Where Id = {0}" , id);
// 创建 SQL 执行对象
DBUtility.AbstractDBProvider dbProvider = DBUtility.AbstractDBProvider.Instance();
// 执行 删除操作
int rowsAffected;
dbProvider.RunCommand(sqlTxt, out rowsAffected);
if (rowsAffected >= 1 )
return true ;
else
return false ;
}
/// <summary>
/// 修改操作员
/// </summary>
/// <param name="currentOperator">要修改的操作员实体</param>
/// <returns>True:成功/False:失败</returns>
public bool ModifyOperator(Model.Operator currentOperator)
{
// 验证密码长度
if (currentOperator.Password.Trim().Length < 6 )
throw new Exception( "用户密码长度不能小于六位!" );
// 转换操作员权限集合为数据库可存取的 Byte[] 数组
MemoryStream ms = new MemoryStream();
BinaryFormatter bf = new BinaryFormatter();
bf.Serialize(ms, currentOperator.RightsCollection);
byte [] rigthsByteArray = new byte [( int )(ms.Length)];
ms.Position = 0 ;
ms.Read(rigthsByteArray, 0 , ( int )(ms.Length));
ms.Close();
// 拼接 SQL 命令
string sqlTxt = "Update Operator Set OperatorName = @OperatorName, "
"Password = @Password, RightsList = @RightsList, State = @State Where Id = @Id" ;
// 从配置文件读取连接字符串
string connectionString = ConfigurationManager.ConnectionStrings[ "SQLSERVER" ].ConnectionString;
// 执行 SQL 命令
using(SqlConnection conn = new SqlConnection(connectionString))
{
SqlCommand cmd = new SqlCommand(sqlTxt, conn);
SqlParameter prm1 = new SqlParameter( "@OperatorName" , SqlDbType.NVarChar, 50 );
prm1.Value = currentOperator.ModelName;
SqlParameter prm2 = new SqlParameter( "@Password" , SqlDbType.NVarChar, 50 );
prm2.Value = currentOperator.Password;
SqlParameter prm3 = new SqlParameter( "@RightsList" , SqlDbType.VarBinary, rigthsByteArray.Length,
ParameterDirection.Input, false , 0 , 0 , null , DataRowVersion.Current, rigthsByteArray);
SqlParameter prm4 = new SqlParameter( "@State" , SqlDbType.Bit);
prm4.Value = currentOperator.State;
SqlParameter prm5 = new SqlParameter( "@Id" , SqlDbType.Int);
prm5.Value = currentOperator.Id;
cmd.Parameters.AddRange( new SqlParameter[] { prm1, prm2, prm3, prm4, prm5 });
conn.Open();
if (cmd.ExecuteNonQuery() >= 1 )
return true ;
else
return false ;
}
}
/// <summary>
/// 获取所有操作员信息
/// </summary>
/// <returns>操作员实体集合</returns>
public Dictionary<string, Model.Operator> GetAllOperatorInfo()
{
//SQL命令
string sqltxt = "Select Id, OperatorName, Password, RightsList, State From Operator" ;
//创建操作员实体集合
Dictionary<string, Model.Operator> operatorCollection = new Dictionary<string, Model.Operator>();
//定义操作员实体
Model.Operator tmpOperator = null ;
// 转换数据库存储的 二进制数据为 Byte[] 数组 以便进而转换为操作员权限集合
// 从配置文件读取连接字符串
string connectionString = ConfigurationManager.ConnectionStrings[ "SQLSERVER" ].ConnectionString;
// 执行 SQL 命令
using (SqlConnection conn = new SqlConnection(connectionString))
{
SqlCommand cmd = new SqlCommand(sqltxt, conn);
conn.Open();
using (SqlDataReader myReader = cmd.ExecuteReader(
CommandBehavior.CloseConnection))
{
while (myReader.Read())
{
// 创建操作员实体
tmpOperator = new Model.Operator();
//将数据集转换成实体集合
tmpOperator.Id = Convert.ToInt32(myReader[ "Id" ]);
tmpOperator.ModelName = Convert.ToString(myReader[ "OperatorName" ]);
tmpOperator.Password = Convert.ToString(myReader[ "Password" ]);
tmpOperator.State = Convert.ToBoolean(myReader[ "State" ]);
// 读取权限集合
System.Data.SqlTypes.SqlBytes bytes = myReader.GetSqlBytes( 3 ); // 只能指定列序号
// 将流反序列化为权限集合对象
BinaryFormatter bf = new BinaryFormatter();
if (!bytes.IsNull)
tmpOperator.RightsCollection = (bf.Deserialize(bytes.Stream) as Dictionary<string, Model.Rights>);
// 添加到操作员实体集合
operatorCollection.Add(tmpOperator.ModelName, tmpOperator);
}
}
}
// 返回结果
return operatorCollection;
}
/// <summary>
/// 根据操作员名称校验操作员是否存在
/// </summary>
/// <param name="operatorName">操作员名称</param>
/// <returns>True:存在/Flase:不存在</returns>
public bool CheckOperatorExist(string operatorName)
{
//创建查询信息的 SQL
string sqlTxt = string.Format(
"Select Count(*) From Operator Where OperatorName = '{0}'" ,
operatorName);
//创建SQL执行对象
DBUtility.AbstractDBProvider dbProvider = DBUtility.AbstractDBProvider.Instance();
//执行查询操作
int result = Convert.ToInt32(dbProvider.RunCommand(sqlTxt));
if (result >= 1 )
return true ;
else
return false ;
}
#endregion
|