ASPX操作数据库

<?xml version="1.0" encoding="utf-8"?>

<!--
有关如何配置 ASP.NET 应用程序的详细信息，请访问 http://go.microsoft.com/fwlink/?LinkId=169433 -->

<configuration>
<system.web>
<customErrors mode="Off"/>
</system.web>
<system.web>
<compilation debug="true" targetFramework="4.5" />
<httpRuntime targetFramework="4.5" />
</system.web>
<connectionStrings>
<add name="TestConnStr1" connectionString="user id=hgjg@sa;password=jhyrf765_67;Data Source=localhost;Initial Catalog=DB1;" providerName="System.Data.SqlClient" />
<add name="TestConnStr2" connectionString="user id=hgjg@sa;password=jhyrf765_67;Data Source=localhost;Initial Catalog=DB2;" providerName="System.Data.SqlClient" />
</connectionStrings>
</configuration>

protected void Page_Load(object sender, EventArgs e)
{
String  outstr="";
string sqlstr = "SELECT * FROM [TestDB].[dbo].[t_apply]";
SqlConnection conn = new SqlConnection(System.Configuration.ConfigurationManager.ConnectionStrings["TestConnStr1"].ConnectionString);

SqlCommand cmd = new SqlCommand();
SqlDataReader reader;

cmd.CommandText = sqlstr;
cmd.CommandType = CommandType.Text;
cmd.Connection = conn;

conn.Open();
using (conn)
{
reader = cmd.ExecuteReader();
if (reader.HasRows)
{
while (reader.Read())
{
outstr += "UserID:" + reader.GetInt32(0) + ";";
outstr += "Diamond:" + reader.GetInt64(1) + ";";
outstr += "isAndroiod:" + reader.GetValue(2) + ";";
outstr += "Date:" + reader.GetDateTime(3) + "\n\r";
}
outstr = "hasRow";
}
else
{
outstr = "null";
}
Response.Write(outstr);
reader.Close();
}
}

protected void execProd()
{
SqlConnection conn = new SqlConnection(System.Configuration.ConfigurationManager.ConnectionStrings["TestConnStr2"].ConnectionString);

SqlCommand cmd = new SqlCommand();
cmd.CommandText = "t_test_add";
cmd.CommandType = CommandType.StoredProcedure;

try
{
conn.Open();
using (conn)
{
SqlParameter param1 = new SqlParameter("@uname", SqlDbType.NVarChar, 10);
param1.Value = "zhang";
cmd.Parameters.Add(param1);

SqlParameter param2 = new SqlParameter("@munt", SqlDbType.Int, 4);
param2.Value = 566;
cmd.Parameters.Add(param2);

SqlParameter param3 = new SqlParameter("@out", SqlDbType.NVarChar, 50);
param3.Direction = ParameterDirection.Output;
cmd.Parameters.Add(param3);

SqlParameter param4 = new SqlParameter("RETURN_VALUE", SqlDbType.NVarChar, 50);
param4.Direction = ParameterDirection.ReturnValue;
cmd.Parameters.Add(param4);
cmd.Connection = conn;
object returnValue = cmd.ExecuteScalar();
string s = cmd.Parameters["RETURN_VALUE"].Value.ToString();
Response.Write(s + "==" + param3.Value.ToString());//返回值+output
}
}
catch(System.Data.SqlClient.SqlException e)
{
Response.Write(e.Message);
}
}