续《基于C# 开发的SOL SERVER 操作数据库类（SQLHelp》 ——第二弹
续上一节，本节给出SQLHelp的具体实现方法——《YSFSQLHelp》，个人根据自己需要新建适合的类，本节根据参考网上资料，根据自己的需要编写的SQL帮助类。下面直接给出具体实现：
//Data Source=.;Initial Catalog=SEFEvaluation;Persist Security Info=True;User ID=sa;Password=\*\*\*\*\*\*\*\*\*\*\*
public static string SqlHost = GetConfig.GetConfiguration("ConnectionStrings:SqlHost");
public static string SqlAdminName = GetConfig.GetConfiguration("ConnectionStrings:SqlAdminName");
public static string SqlAdminPswd = GetConfig.GetConfiguration("ConnectionStrings:SqlAdminPswd");
public static string SqlCatalogProFix = GetConfig.GetConfiguration("ConnectionStrings:SqlCatalogProFix");
public static string strcon = string.Format(@"Data Source={0};User ID={1};Password={2};Initial Catalog={3};Pooling=true", SqlHost, SqlAdminName, SqlAdminPswd, SqlCatalogProFix);
// public static string strcon = "Server=8.135.110.228;Initial Catalog=TestDB;User ID=sa;Password=QVq4iu=yV$ge7\*qQ.6e,yL|hg!8d-79.,@yv?P=hj/JB72sd567";
//数据库连接字符串(web.config来配置)
//<add key="ConnectionString" value="server=127.0.0.1;database=DATABASE;uid=sa;pwd=" />
#region 类中的全局变量-数据连接字符串
// public static string strcon = "Data Source=127.0.0.1;User ID=sa;Password=family962464QR;Initial Catalog=SEFEvaluation;Pooling=true";//连接字符串，使用Windows登录方式
// public static string strcon = ConfigurationManager.ConnectionStrings\["ApplicationServices"\].ConnectionString.ToString();//连接字符串，使用Windows登录方式
#endregion
#region 构造函数
/// <summary>
/// 构造函数，初始化时连接数据库
/// </summary>
public YSFSQLHelp()
{
strcon = strcon;// ConfigurationManager.ConnectionStrings\["ApplicationServices"\].ConnectionString.ToString();
}
#endregion
#region 其他转化与编码
/// <summary>
/// MD5加密
/// </summary>
/// <param name="strPwd">被加密的字符串</param>
/// <returns>返回加密后的字符串</returns>
public string GetMD5(string strPwd)
{
string pwd = "";
//实例化一个md5对象
MD5 md5 = MD5.Create();
// 加密后是一个字节类型的数组，这里要注意编码UTF8/Unicode等的选择
byte\[\] s = md5.ComputeHash(Encoding.UTF8.GetBytes(strPwd));
//翻转生成的MD5码
s.Reverse();
//通过使用循环，将字节类型的数组转换为字符串，此字符串是常规字符格式化所得
//只取MD5码的一部分，这样恶意访问者无法知道取的是哪几位
for (int i = 3; i < s.Length - 1; i++)
{
//将得到的字符串使用十六进制类型格式。格式后的字符是小写的字母，如果使用大写（X）则格式后的字符是大写字符
//进一步对生成的MD5码做一些改造
pwd = pwd + (s\[i\] < 198 ? s\[i\] + 28 : s\[i\]).ToString("X");
}
return pwd;
}
/// <summary>
/// table转化为数组
/// </summary>
/// <param name="table"> datatable对象</param>
/// <param name="status">M，只查一条数据，否则查多条</param>
/// <returns></returns>
public List<Dictionary<string, object>> QueryData(DataTable table, string status)
{
List<Dictionary<string, object>> outdata = new List<Dictionary<string, object>>();
Dictionary<string, object> dic = new Dictionary<string, object>();
List<Dictionary<string, object>> listdata = new List<Dictionary<string, object>>();
try
{
DataTable tb = new DataTable();
tb = table;
//如果数据库返回的总数据量少于一页显示的量，则循环次数为返回的数据量，反之就是规定的一页数据量
//strip 具体拿取 的信息条数
if (tb.Rows.Count > 0)
{
if (status.Equals("M"))
{
for (int i = 0; i < tb.Rows.Count; i++)
{
//重置参数
listdata = new List<Dictionary<string, object>>();
dic = new Dictionary<string, object>();
for (int j = 0; j < tb.Columns.Count; j++)
{
dic.Add(tb.Columns\[j\].ColumnName, tb.Rows\[i\]\[j\].ToString());
}
outdata.Add(dic);
}
}
else
{
//每查询一次就存入一次Outdata中 i是行数，c是列数
for (int i = 0; i < 1; i++)
{
dic = new Dictionary<string, object>();
for (int c = 0; c < tb.Columns.Count; c++)
{
dic.Add(tb.Columns\[c\].ColumnName, tb.Rows\[i\]\[c\].ToString());
}
outdata.Add(dic);
}
}
}
}
catch (Exception ex)
{
}
return outdata;
}
/// <summary>
/// SqlDataReader转化为Table
/// </summary>
/// <param name="reader">SqlDataReader对象</param>
/// <returns></returns>
public DataTable ConvertDataReaderToDataTable(SqlDataReader reader)
{
try
{
DataTable objDataTable = new DataTable();
int intFieldCount = reader.FieldCount;
for (int intCounter = 0; intCounter < intFieldCount; ++intCounter)
{
objDataTable.Columns.Add(reader.GetName(intCounter), reader.GetFieldType(intCounter));
}
objDataTable.BeginLoadData();
object\[\] objValues = new object\[intFieldCount\];
while (reader.Read())
{
reader.GetValues(objValues);
objDataTable.LoadDataRow(objValues, true);
}
reader.Close();
objDataTable.EndLoadData();
return objDataTable;
}
catch (Exception ex)
{
throw new Exception("转换出错!", ex);
}
}
/// <summary>
/// SQL 语句查询转化为数组
/// </summary>
/// <param name="cmdstr"> SQL语句</param>
/// <param name="status">M，查多条数据，否则1条</param>
/// <returns></returns>
public List<Dictionary<string, object>> QueryDataSQL(string cmdstr, string status)
{
List<Dictionary<string, object>> outdata = new List<Dictionary<string, object>>();
Dictionary<string, object> dic = new Dictionary<string, object>();
List<Dictionary<string, object>> listdata = new List<Dictionary<string, object>>();
SqlConnection con = new SqlConnection(strcon);
SqlDataAdapter da = new SqlDataAdapter(cmdstr, con);
try
{
con.Open();
DataSet ds = new DataSet();
da.Fill(ds);
DataTable tb = new DataTable();
tb = ds.Tables\[0\];
//如果数据库返回的总数据量少于一页显示的量，则循环次数为返回的数据量，反之就是规定的一页数据量
//strip 具体拿取 的信息条数
if (tb.Rows.Count > 0)
{
if (status.Equals("M"))
{
for (int i = 0; i < tb.Rows.Count; i++)
{
//重置参数
listdata = new List<Dictionary<string, object>>();
dic = new Dictionary<string, object>();
for (int j = 0; j < tb.Columns.Count; j++)
{
dic.Add(tb.Columns\[j\].ColumnName, tb.Rows\[i\]\[j\].ToString());
}
outdata.Add(dic);
}
}
else
{
//每查询一次就存入一次Outdata中 i是行数，c是列数
for (int i = 0; i < 1; i++)
{
dic = new Dictionary<string, object>();
for (int c = 0; c < tb.Columns.Count; c++)
{
dic.Add(tb.Columns\[c\].ColumnName, tb.Rows\[i\]\[c\].ToString());
}
outdata.Add(dic);
}
}
}
}
catch (Exception ex)
{
con.Close();
CreateInLog("SQL 语句 " + cmdstr + "执行错误！" + ex.Message);
}
finally
{
con.Close();
}
return outdata;
}
/// <summary>
/// SQL 语句查询转化为数组
/// </summary>
/// <param name="strconn"> 自定义连接串</param>
/// <param name="cmdstr"> SQL语句</param>
/// <param name="status">M，查多条数据，否则1条</param>
/// <returns></returns>
public List<Dictionary<string, object>> QueryDataSQL(string strconn, string cmdstr, string status)
{
List<Dictionary<string, object>> outdata = new List<Dictionary<string, object>>();
Dictionary<string, object> dic = new Dictionary<string, object>();
List<Dictionary<string, object>> listdata = new List<Dictionary<string, object>>();
SqlConnection con = new SqlConnection(strconn);
SqlDataAdapter da = new SqlDataAdapter(cmdstr, con);
try
{
con.Open();
DataSet ds = new DataSet();
da.Fill(ds);
DataTable tb = new DataTable();
tb = ds.Tables\[0\];
//如果数据库返回的总数据量少于一页显示的量，则循环次数为返回的数据量，反之就是规定的一页数据量
//strip 具体拿取 的信息条数
if (tb.Rows.Count > 0)
{
if (status.Equals("M"))
{
for (int i = 0; i < tb.Rows.Count; i++)
{
//重置参数
listdata = new List<Dictionary<string, object>>();
dic = new Dictionary<string, object>();
for (int j = 0; j < tb.Columns.Count; j++)
{
dic.Add(tb.Columns\[j\].ColumnName, tb.Rows\[i\]\[j\].ToString());
}
outdata.Add(dic);
}
}
else
{
//每查询一次就存入一次Outdata中 i是行数，c是列数
for (int i = 0; i < 1; i++)
{
dic = new Dictionary<string, object>();
for (int c = 0; c < tb.Columns.Count; c++)
{
dic.Add(tb.Columns\[c\].ColumnName, tb.Rows\[i\]\[c\].ToString());
}
outdata.Add(dic);
}
}
}
}
catch (Exception ex)
{
con.Close();
CreateInLog("SQL 语句 " + cmdstr + "在" + strconn + "执行错误！" + ex.Message);
}
finally
{
con.Close();
}
return outdata;
}
/// <summary>
/// SQL 执行本地查询存储过程转化为数组
/// </summary>
/// <param name="cmdstr"> SQL语句</param>
/// <param name="status">M，查多条数据，否则1条</param>
/// <returns></returns>
public List<Dictionary<string, object>> QueryDataParameter(string storedProcName, SqlParameter\[\] parameters, string status)
{
List<Dictionary<string, object>> outdata = new List<Dictionary<string, object>>();
Dictionary<string, object> dic = new Dictionary<string, object>();
List<Dictionary<string, object>> listdata = new List<Dictionary<string, object>>();
//DataTable dataTable2 = new DataTable();
try
{
DataTable dataTable2 = SqlQueryParameter(storedProcName, parameters);
DataTable tb = new DataTable();
tb = dataTable2;
//如果数据库返回的总数据量少于一页显示的量，则循环次数为返回的数据量，反之就是规定的一页数据量
//strip 具体拿取 的信息条数
if (tb.Rows.Count > 0)
{
if (status.Equals("M"))
{
for (int i = 0; i < tb.Rows.Count; i++)
{
//重置参数
listdata = new List<Dictionary<string, object>>();
dic = new Dictionary<string, object>();
for (int j = 0; j < tb.Columns.Count; j++)
{
dic.Add(tb.Columns\[j\].ColumnName, tb.Rows\[i\]\[j\].ToString());
}
outdata.Add(dic);
}
}
else
{
//每查询一次就存入一次Outdata中 i是行数，c是列数
for (int i = 0; i < 1; i++)
{
dic = new Dictionary<string, object>();
for (int c = 0; c < tb.Columns.Count; c++)
{
dic.Add(tb.Columns\[c\].ColumnName, tb.Rows\[i\]\[c\].ToString());
}
outdata.Add(dic);
}
}
}
}
catch (Exception ex)
{
CreateInLog("SQL 存储过程 " + storedProcName + "执行错误！" + ex.Message);
}
finally
{
}
return outdata;
}
/// <summary>
/// SQL 执行非本地查询存储过程转化为数组
/// </summary>
/// <param name="strconn"> 自定义连接串</param>
/// <param name="cmdstr"> SQL语句</param>
/// <param name="status">M，查多条数据，否则1条</param>
/// <returns></returns>
public List<Dictionary<string, object>> QueryDataParameter(string strconn, string storedProcName, SqlParameter\[\] parameters, string status)
{
List<Dictionary<string, object>> outdata = new List<Dictionary<string, object>>();
Dictionary<string, object> dic = new Dictionary<string, object>();
List<Dictionary<string, object>> listdata = new List<Dictionary<string, object>>();
//DataTable dataTable2 = new DataTable();
try
{
DataTable dataTable2 = SqlQueryParameter(strconn, storedProcName, parameters);
DataTable tb = new DataTable();
tb = dataTable2;
//如果数据库返回的总数据量少于一页显示的量，则循环次数为返回的数据量，反之就是规定的一页数据量
//strip 具体拿取 的信息条数
if (tb.Rows.Count > 0)
{
if (status.Equals("M"))
{
for (int i = 0; i < tb.Rows.Count; i++)
{
//重置参数
listdata = new List<Dictionary<string, object>>();
dic = new Dictionary<string, object>();
for (int j = 0; j < tb.Columns.Count; j++)
{
dic.Add(tb.Columns\[j\].ColumnName, tb.Rows\[i\]\[j\].ToString());
}
outdata.Add(dic);
}
}
else
{
//每查询一次就存入一次Outdata中 i是行数，c是列数
for (int i = 0; i < 1; i++)
{
dic = new Dictionary<string, object>();
for (int c = 0; c < tb.Columns.Count; c++)
{
dic.Add(tb.Columns\[c\].ColumnName, tb.Rows\[i\]\[c\].ToString());
}
outdata.Add(dic);
}
}
}
}
catch (Exception ex)
{
CreateInLog("SQL 存储过程 " + storedProcName + "执行错误！" + ex.Message);
}
finally
{
}
return outdata;
}
#endregionpublic static string SqlHost = GetConfig.GetConfiguration("ConnectionStrings:SqlHost");//获取配置的服务器
public static string SqlAdminName = GetConfig.GetConfiguration("ConnectionStrings:SqlAdminName");//数据库账号
public static string SqlAdminPswd = GetConfig.GetConfiguration("ConnectionStrings:SqlAdminPswd");//数据库密码
public static string SqlCatalogProFix = GetConfig.GetConfiguration("ConnectionStrings:SqlCatalogProFix");//数据库
public static string strcon = string.Format(@"Data Source={0};User ID={1};Password={2};Initial Catalog={3};Pooling=true", SqlHost, SqlAdminName, SqlAdminPswd, SqlCatalogProFix);
ConnectionStrings appsettings文件配置的数据库连接串
GetConfiguration//获取配置的数据库连接信息
也可以使用依赖注入调用
public static string GetConfiguration(string configKey)
{
var builder = new ConfigurationBuilder()
.SetBasePath(Directory.GetCurrentDirectory())
.AddJsonFile("appsettings.json");
var config = builder.Build();
if (configKey.Contains(":"))
{
return config.GetSection(configKey).Value;//获取分级参数值
}
else
{
return config\[configKey\];//获取直级参数值
}
//youdianwenti w xiangxiang
}如有侵权，请联系作者，将进行整改
今日分享结束
能帮朋友解决问题的记得给个关注支持一下，以后将多多分享SQL SERVER 相关知识
手机扫一扫
移动阅读更方便
你可能感兴趣的文章