public ProductsDetailViewModel(IContainerExtension container) : base(container)
{
_categoryService = new CategoryService();
_brandService = new BrandInfoService();
LoadCategories();
LoadBrands();
}
private static void CreateIndex(List <ProductInfo> list)
{
IProductShopCategoryInfo shopBll = new ProductShopCategoryService();
IFreightTemplate freBll = new FreightTemplateService();
IProductInfo pBll = new ProductInfoService();
IProductAttributeInfo proAttrBll = new ProductAttributeService();
IAttributeValueInfo attrBll = new AttributeValueService();
string indexpath = ConfigurationManager.AppSettings["Indexpath"];
IProductDescriptionInfo desBll = new ProductDescriptionInfoService();
IBrandInfo braBll = new BrandInfoService();
FSDirectory directory = FSDirectory.Open(new DirectoryInfo(indexpath), new NativeFSLockFactory());
//IndexReader:对索引库进行读取的类
bool isExist = IndexReader.IndexExists(directory); //是否存在索引库文件夹以及索引库特征文件
if (isExist)
{
//如果索引目录被锁定（比如索引过程中程序异常退出或另一进程在操作索引库），则解锁
//Q:存在问题 如果一个用户正在对索引库写操作 此时是上锁的 而另一个用户过来操作时 将锁解开了 于是产生冲突 --解决方法后续
if (IndexWriter.IsLocked(directory))
{
IndexWriter.Unlock(directory);
}
}
IndexWriter writer = new IndexWriter(directory, new PanGuAnalyzer(), !isExist, IndexWriter.MaxFieldLength.UNLIMITED);
try
{
foreach (var pitem in list)
{
string shopcategoryid = "";
List <ProductShopCategoryInfo> shoplist = new List <ProductShopCategoryInfo>();
shoplist = shopBll.SearchbyProid(pitem.Id.ToString());
foreach (var shopitem in shoplist)
{
shopcategoryid += shopitem.ShopCategoryId.ToString() + ",";
}
FreightTemplateInfo freinfo = new FreightTemplateInfo();
freinfo = freBll.SearchByid(pitem.FreightTemplateId.ToString());
List <ProductAttributeInfo> attrlist = new List <ProductAttributeInfo>();
string proattr = ",";
string attrval = "";
string attr = "";
attrlist = proAttrBll.SearchByproductid(pitem.Id.ToString()); //产品属性
foreach (var attitem in attrlist)
{
proattr += attitem.ValueId + ","; //属性ID用于精确查找
attr = attrBll.GetAttributeValueById(attitem.ValueId);
attrval += attr + ","; //属性值用于模糊查询
}
string desinfo = "";
desinfo = desBll.GetByProductId(pitem.Id); //产品描述 用于模糊查询
string brand = "";
brand = braBll.GetNameById(pitem.BrandId); //品牌名字 用于模糊查询
attrval += brand; //品牌属性
Document document = new Document();
Field id = new Field("Id", pitem.Id.ToString(), Field.Store.YES, Field.Index.NOT_ANALYZED); //商品ID
Field ProductName = new Field("ProductName", pitem.ProductName, Field.Store.YES, Field.Index.ANALYZED, Field.TermVector.WITH_POSITIONS_OFFSETS); //商品名称
ProductName.SetBoost(0.5f);
//Field BrandName = new Field("BrandName", brand, Field.Store.YES, Field.Index.ANALYZED, Field.TermVector.WITH_POSITIONS_OFFSETS); //品牌名字
Field Description = new Field("Description", desinfo, Field.Store.YES, Field.Index.ANALYZED, Field.TermVector.WITH_POSITIONS_OFFSETS); //描述
Description.SetBoost(0.15f);
Field BrandAttribution = new Field("BrandAttribution", attrval, Field.Store.YES, Field.Index.ANALYZED, Field.TermVector.WITH_POSITIONS_OFFSETS); //品牌属性
BrandAttribution.SetBoost(0.35f);
Field AuditStatus = new Field("AuditStatus", pitem.AuditStatus.ToString(), Field.Store.YES, Field.Index.ANALYZED, Field.TermVector.WITH_POSITIONS_OFFSETS); //
Field SaleStatus = new Field("SaleStatus", pitem.SaleStatus.ToString(), Field.Store.YES, Field.Index.ANALYZED, Field.TermVector.WITH_POSITIONS_OFFSETS); //销售状态
NumericField ShopId = new NumericField("ShopId", Field.Store.YES, true).SetLongValue(pitem.ShopId); //商家ID
Field CategoryPath = new Field("CategoryPath", pitem.CategoryPath, Field.Store.YES, Field.Index.ANALYZED, Field.TermVector.WITH_POSITIONS_OFFSETS); //分类路径
NumericField CategoryId = new NumericField("CategoryId", Field.Store.YES, true).SetLongValue(pitem.CategoryId); //分类ID
NumericField BrandId = new NumericField("BrandId", Field.Store.YES, true).SetLongValue(pitem.BrandId); //品牌ID
NumericField MinSalePrice = new NumericField("MinSalePrice", Field.Store.YES, true).SetDoubleValue(Convert.ToDouble(pitem.MinSalePrice)); //价格
NumericField SaleCounts = new NumericField("SaleCounts", Field.Store.YES, true).SetLongValue(pitem.SaleCounts); //销售数量
NumericField AddedDate = new NumericField("AddedDate", Field.Store.YES, true).SetLongValue(pitem.AddedDate.Ticks); //商品上架时间
Field FreightTemplateId = new Field("FreightTemplateId", pitem.FreightTemplateId.ToString(), Field.Store.YES, Field.Index.ANALYZED, Field.TermVector.WITH_POSITIONS_OFFSETS);
Field Shopcategoryid = new Field("Shopcategoryid", shopcategoryid, Field.Store.YES, Field.Index.NOT_ANALYZED); //商家分类ID
Field ProductAttribute = new Field("ProductAttribute", proattr, Field.Store.YES, Field.Index.ANALYZED, Field.TermVector.WITH_POSITIONS_OFFSETS); //商品属性
Field ProductImage = new Field("ProductImage", string.IsNullOrEmpty(pitem.ImagePath) ? "未知" : pitem.ImagePath, Field.Store.YES, Field.Index.NOT_ANALYZED);
Field SaleUnit = new Field("SaleUnit", string.IsNullOrEmpty(pitem.MeasureUnit) ? "未知" : pitem.MeasureUnit, Field.Store.YES, Field.Index.NOT_ANALYZED); //销售单位
int SourceAddress = 0;
if (freinfo.SourceAddress != null)
{
SourceAddress = (int)freinfo.SourceAddress;
}
NumericField AddressId = new NumericField("AddressId", Field.Store.YES, true).SetIntValue(SourceAddress); //地区ID
int commentnum = pBll.SearchComments(pitem.Id.ToString());
NumericField CommentNum = new NumericField("CommentNum", Field.Store.YES, true).SetIntValue(commentnum); //评论数
document.Add(id);
document.Add(ProductName);
//document.Add(BrandName);
document.Add(Description);
document.Add(BrandAttribution);
document.Add(AuditStatus);
document.Add(SaleStatus);
document.Add(ShopId);
document.Add(CategoryPath);
document.Add(CategoryId);
document.Add(BrandId);
document.Add(MinSalePrice);
document.Add(SaleCounts);
document.Add(AddedDate);
document.Add(FreightTemplateId);
document.Add(Shopcategoryid);
document.Add(ProductAttribute);
document.Add(ProductImage);
document.Add(SaleUnit);
document.Add(AddressId);
document.Add(CommentNum);
writer.AddDocument(document); //文档写入索引库
}
writer.Optimize();
writer.Close(); //会自动解锁
directory.Close(); //不要忘了Close，否则索引结果搜不到
}
catch (Exception ex)
{
Utility.writelog("创建索引出问题:" + ex + "");
}
}
