ASP.net+sqlserver企业网站设计+流程图+用例ER图(16)
（3） 输入正确，系统将通过访问数据库，直接进入到网站个人首页。
功能实现代码：
// 登录
public partial class login : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}//加载页面
protected void btLogin_Click(object sender, ImageClickEventArgs e)
{
}//点击登录按钮
protected void ImageButton1_Click(object sender, ImageClickEventArgs e)
{
if (TextBox2.Text.ToString().Trim() == "" || TextBox1.Text.ToString().Trim() == "")
{
Response.Write("<script>javascript:alert('请输入完整 ');history.back();</script>");
Response.End();
}
string sql;
sql = "select * from allusers where username='" + TextBox2.Text.ToString().Trim() + "' and pwd='" + TextBox1.Text.ToString().Trim() + "'";
DataSet result = new DataSet();
result = new Class1().hsggetdata(sql);
// result = new TestOnline.Class1().hsggetdata(sql);
if (result != null)
{
if (result.Tables[0].Rows.Count > 0)
{
Session["username"] = TextBox2.Text.ToString().Trim();
Session["role"] = result.Tables[0].Rows[0]["cx"].ToString().Trim();
Response.Redirect("default.htm");
}
else
{
Response.Write("<script>javascript:alert('对不起，用户名或密码不 正确!');</script>");
}
}
else