sharepoint2010如何根据用户登录名获取有权限的列表记录？

大家都知道在sharepoint2010登录，系统自动根据登录用户给出有权限的列表记录？但是有些业务场景用户不能登录，如对外提供接口给业务系统调用列表数据，需要根据不同用户返回不同的列表记录。此时需要考虑如何根据登录名获取有权限的列表记录。下面我介绍2个方法来进行

1、通过DoesUserHavePermissions来获取有权限的记录

//申明集合

            List<EGNewsEntity> EGNewsEntityList = new List<EGNewsEntity>();

            try

            {

                //得到列表                

                SPList m_objList = web.Lists[listName];  

                //查询                

                SPQuery query = new SPQuery();

                query.Query = strWhere;

                //查询的字段                

                if (ViewField.Length > 0)

                {

                    query.ViewFields = BuildViewFields(ViewField);

                }

                SPListItemCollection m_objListItemColl = m_objList.GetItems(query);

                //根据当前用户判断是否有权限的记录条数

                foreach (SPListItem item in m_objListItemColl)

                {

                    //判断用户是否有有改记录的阅读权限(查看权限）

                    if (item.DoesUserHavePermissions(user, SPBasePermissions.ViewListItems))

                    {

                        //申明实体类

                        EGNewsEntity entity = new EGNewsEntity();

                        //赋值

                        entity.ID = item["ID"] == null ? string.Empty : item["ID"].ToString();

                        entity.Title = item["Title"] == null ? string.Empty : item["Title"].ToString();

                        entity.CreateTime = Convert.ToDateTime(item["ApplyDateTime"]);

                        entity.Content = item["Content"] == null ? string.Empty : item["Content"].ToString();

                        //加入集合

                        EGNewsEntityList.Add(entity);

                    }

                }

            }

            catch

            {

            }

            //

            return EGNewsEntityList;

        }

2、通过UserToken来获取有权限的记录

 //申明集合

            DataTable table =null;

            #region//账号是否存在

            if (web.AllUsers[UserAccount] != null)

            {

                //获取userToken

                SPUserToken userToken = web.AllUsers[UserAccount].UserToken;

                #region//***************************获取token,模拟当前账号登陆

                using (SPSite owSite = new SPSite(siteUrl, userToken))

                {

                    #region //模拟当前登陆用户打开站点

                    using (SPWeb owWeb = owSite.OpenWeb(webUrl))

                    {

                        try

                        {

                            #region//列表名称 

                            string listName = EGNewsConfig.NewsListName;

                            //如果是新闻

                            if (NewsType == EGNewsEntity.NewsType.News)

                            {

                                listName = EGNewsConfig.NewsListName;

                            }

                            //如果是公告

                            if (NewsType == EGNewsEntity.NewsType.Notice)

                            {

                                listName = EGNewsConfig.NoticeListName;

                            }

                            #endregion

                            //如果列表名称

                            if (!string.IsNullOrEmpty(listName))

                            {

                                #region//查询条件

                                string strWhere = "<OrderBy><FieldRef Name=\"ApplyDateTime\" Ascending=\"False\" /></OrderBy>";

                                //如果有关键字

                                if (!string.IsNullOrEmpty(Key))

                                {

                                    strWhere = "<Where><Eq><FieldRef Name=\"Title\" /><Value Type=\"Text\">" + Key + "</Value></Eq></Where>" + strWhere;

                                }

                                #endregion

                                //申明dataTable

                                table = MakeNamesTable();



                                #region//获取总的记录

                                SPQuery query = new SPQuery();

                                query.Query = strWhere;

                                query.ViewFields = BuildViewFields(new string[]{"Title"});

                                totalCount = owWeb.Lists[listName].GetItems(query).Count;

                                #endregion

                                //

                                int _totalcount = 0;

                                //得到记录

                                SPListItemCollection itemCollection = GetPageList(owWeb, listName, PageSize, PageIndex, out _totalcount, strWhere, new string[] { "ID", "Title", "ApplyDateTime", "Content" });

                                

                                #region//循环

                                foreach (SPListItem item in itemCollection)

                                {

                                    //datatable增加一条记录

                                    DataRow row = table.NewRow();

                                    //ID号码

                                    row["ID"] = item["ID"];

                                    //赋值标题

                                    row["Title"] = item["Title"];

                                    //内容

                                    row["Content"] = item["Content"];

                                    //赋值创建时间

                                    row["CreateTime"] = item["ApplyDateTime"];

                                    //增加记录

                                    table.Rows.Add(row);

                                }

                                #endregion

                            }



                        }

                        catch(Exception ex)

                        {

                            errMsg = ex.Message;

                        }

                    }

                    #endregion

                }

                #endregion

            }

            #endregion

            //

            return table;