MOSS根据名字得到SPUser

public static SPFieldUserValue GetUserValue(string name)
        {
            SPFieldUserValue userColl = new SPFieldUserValue();
            SPSecurity.RunWithElevatedPrivileges(delegate
            {
                using (var site = new SPSite(_rootUrl))
                {
                    using (SPWeb web = site.OpenWeb())
                    {
                        SPList splist1 = web.Lists["用户信息列表"];
                        SPQuery query = new SPQuery();
                        query.Query = @"<Where>
                                          <Eq>
                                             <FieldRef Name='Title' />
                                             <Value Type='Text'>" + name + @"</Value>
                                          </Eq>
                                       </Where>";
                        SPListItemCollection userSpListColl = splist1.GetItems(query);
                        if (userSpListColl.Count == 1)//如果判断非空，害怕出现多个的问题
                        {
                            userColl = new SPFieldUserValue(web, userSpListColl[0].ID, userSpListColl[0].Title);
                        }
                    }
                }
            });
            return userColl;
        }