if(username!=""&&password!="")
{
temp=0;
temp=link.select(sql);
if(temp>0)
{
session.setAttribute("name",username);
response.sendRedirect("rsgl.jsp");
}
else
{
session.setAttribute("error","用户名或密码输入错误!!!");
response.sendRedirect("errorpage.jsp");
}
}你这里是不是应该改为if(temp >= 0)?
{
temp=0;
temp=link.select(sql);
if(temp>0)
{
session.setAttribute("name",username);
response.sendRedirect("rsgl.jsp");
}
else
{
session.setAttribute("error","用户名或密码输入错误!!!");
response.sendRedirect("errorpage.jsp");
}
}你这里是不是应该改为if(temp >= 0)?
temp=link.select(sql);
if(temp>0)
{
session.setAttribute("name",username);
response.sendRedirect("rsgl.jsp");
}
else
{
session.setAttribute("error","用户名或密码输入错误!!!");
response.sendRedirect("errorpage.jsp");
}
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你先temp=0,然后temp没有任何改变就判断,当然会进入else的语句了