Jquery 如何将图像放入SQLServer2005
我已经编写了以下代码来将映像路径放置到SQLServer2005中,但它不起作用,因为它们没有任何其他方法可以从客户端应用程序将映像放置到SQLServer中 example.htmlJquery 如何将图像放入SQLServer2005,jquery,html,sql-server-2005,asmx,Jquery,Html,Sql Server 2005,Asmx,我已经编写了以下代码来将映像路径放置到SQLServer2005中,但它不起作用,因为它们没有任何其他方法可以从客户端应用程序将映像放置到SQLServer中 example.html <form id="addresslistingform"> <fieldset id="fieldset1"><legend>Address for listing</legend> Zipcod
<form id="addresslistingform">
<fieldset id="fieldset1"><legend>Address for listing</legend>
Zipcode:<br/>
<input size="30" type="text" id="zipcode"/><br/>
Street No:<br/>
<input size="30" type="text" id="addstreetno" class="number" name="streetno"/><br/>
Street Name:<br/>
<input size="30" type="text" id="addstreetname" class="required" name="streetname"/><br/>
Upload a couple of pictures:<br>
<input size="30" type="file" id="addpicture"/> <br>
</fieldset>
<input id="Addresslisting" type="image" src="images/Submit.png" align="left" />
</form>
asmx Web服务文件
[WebMethod(EnableSession = true)]
[ScriptMethod(ResponseFormat = ResponseFormat.Json)]
public bool addresslisting(string zipcode, string streetnumber, string streetname, string Imagelocation)
{
SqlConnection con = new SqlConnection();
con.ConnectionString = "";
con.Open();
SqlCommand sqlcom = new SqlCommand();//declaring a new command
sqlcom.CommandText = "insert into Address_Listing(Zip_Code,Street_Number,Street_Name,Image_Location) values ('" + zipcode + "','" + streetnumber + "','" + streetname + "', '" + Imagelocation + "')"; //query for inserting data into contact table
sqlcom.Connection = con;//connecting to database
try
{
int success = sqlcom.ExecuteNonQuery();
con.Close();
if (success > 0)
{
return true;
}
else
{
return false;
}
}
catch (Exception e)
{
con.Close();
return false;
}
}
仅供参考,您的代码存在许多问题。应该是这样的:
public bool addresslisting(string zipcode, string streetnumber, string streetname, string Imagelocation)
{
using (SqlConnection con = new SqlConnection())
{
con.ConnectionString = "";
con.Open();
using (SqlCommand sqlcom = new SqlCommand())
{
sqlcom.CommandText =
string.Format(
"insert into Address_Listing(Zip_Code,Street_Number,Street_Name,Image_Location) " +
"values ('{0}','{1}','{2}', '{3}')",
zipcode, streetnumber, streetname, Imagelocation);
sqlcom.Connection = con;
int success = sqlcom.ExecuteNonQuery();
return success > 0;
}
}
}
使用
块将确保释放资源,即使引发异常也是如此public bool addresslisting(string zipcode, string streetnumber, string streetname, string Imagelocation)
{
using (SqlConnection con = new SqlConnection())
{
con.ConnectionString = "";
con.Open();
using (SqlCommand sqlcom = new SqlCommand())
{
sqlcom.CommandText =
string.Format(
"insert into Address_Listing(Zip_Code,Street_Number,Street_Name,Image_Location) " +
"values ('{0}','{1}','{2}', '{3}')",
zipcode, streetnumber, streetname, Imagelocation);
sqlcom.Connection = con;
int success = sqlcom.ExecuteNonQuery();
return success > 0;
}
}
}