ProductMgr.java
资源名称:JAVAshop.rar [点击查看]
上传用户:sxychgz
上传日期:2019-04-21
资源大小:4772k
文件大小:3k
源码类别:
电子政务应用
开发平台:
Java
- package com.bjsxt.shopping.product;
- import java.util.List;
- public class ProductMgr {
- private static ProductMgr mgr = null;
- private static ProductDAO dao = new ProductMySQLDAO();
- private ProductMgr() {}
- public static ProductMgr getInstance() {
- if(mgr == null) {
- mgr = new ProductMgr();
- }
- return mgr;
- }
- public List<Product> getProducts() {
- return dao.getProducts();
- }
- public int getProducts(List<Product> products, int pageNo, int pageSize, boolean lazy) {
- return dao.getProducts(products, pageNo, pageSize, lazy);
- }
- public void add(Product p) {
- dao.add(p);
- }
- public void update(Product p) {
- dao.update(p);
- }
- public void delete(int id) {
- dao.delete(id);
- }
- public Product loadById(int id) {
- return dao.loadById(id);
- }
- public void delete(String[] idArray) {
- String conditionStr = " where id in (";
- for (int i = 0; i < idArray.length; i++) {
- conditionStr += idArray[i];
- conditionStr += ",";
- }
- conditionStr = conditionStr.replaceAll(".$", ")");
- //conditionStr = conditionStr.substring(0, conditionStr.length() - 1) + ")";
- System.out.println(conditionStr);
- dao.delete(conditionStr);
- }
- public int find(List<Product> products, int pageNo, int pageSize, int categoryId) {
- String queryStr = " where p.categoryid = " + categoryId;
- return dao.find(products, pageNo, pageSize, queryStr);
- }
- public int find(List<Product> products, int pageNo, int pageSize, String keyword) {
- String queryStr = " where p.name like '%" + keyword + "%' or p.descr like '%" + keyword + "%'";
- return dao.find(products, pageNo, pageSize, queryStr);
- }
- public int find(List<Product> products, int pageNo, int pageSize, ProductSearchFormBean bean) {
- String queryStr = " where 1=1 ";
- if(bean.getCategoryId() != -1) {
- queryStr += " and p.categoryid = " + bean.getCategoryId();
- }
- if(bean.getName() != null && !bean.getName().trim().equals("")) {
- queryStr += " and p.name like '%" + bean.getName() + "%'";
- }
- if(bean.getLowNormalPrice() != 0.0) {
- queryStr += " and p.normalprice >= " + bean.getLowNormalPrice();
- }
- if(bean.getHighNormalPrice() != 0.0) {
- queryStr += " and p.normalprice <= " + bean.getHighNormalPrice();
- }
- if(bean.getLowMemberPrice() != 0.0) {
- queryStr += " and p.memberprice >= " + bean.getLowMemberPrice();
- }
- if(bean.getHighMemberPrice() != 0.0) {
- queryStr += " and p.memberprice <= " + bean.getHighMemberPrice();
- }
- if(bean.getStartDate() != null && !bean.getStartDate().trim().equals("")) {
- queryStr += " and p.pdate >= '" + bean.getStartDate() + " 00:00:00'";
- }
- if(bean.getEndDate() != null && !bean.getEndDate().trim().equals("")) {
- queryStr += " and p.pdate <= '" + bean.getEndDate() + " 00:00:00'";
- }
- return dao.find(products, pageNo, pageSize, queryStr);
- }
- public List<Product> loadById(int[] ids) {
- return null;
- }
- public static void main(String[] args) {
- String[] idArray = {"1", "2", "3"};
- ProductMgr.getInstance().delete(idArray);
- }
- }