prodinfobean.java~23~

一个很不错的电子商务后台管理系统 这是一个电子商务网站的后台管理系统 要运行此系统必须具备以下条件 1.首先要把SNSQL文本中的SQL脚本确保在SQL Server中执行 2.包Se

package xian.bin.product;

import javax.ejb.SessionBean;
import javax.ejb.SessionContext;
import javax.ejb.CreateException;

import java.util.*;
import javax.naming.*;
import javax.rmi.PortableRemoteObject;

public class ProdInfoBean
    implements SessionBean {
  SessionContext sessionContext;
  private ProductHome productHome;
  public void ejbCreate() throws CreateException {
  }

  public void ejbRemove() {
  }

  public void ejbActivate() {
  }

  public void ejbPassivate() {
  }

  public void setSessionContext(SessionContext sessionContext) {
    this.sessionContext = sessionContext;
  }

  public void setHome(){
    try{
      Properties pro=new Properties();
      pro.put(Context.INITIAL_CONTEXT_FACTORY,"weblogic.jndi.WLInitialContextFactory");
      pro.put(Context.PROVIDER_URL,"t3://localhost:7001");
      Context ctx=new InitialContext(pro);
      Object obj1=ctx.lookup("java:comp/env/ejb/product");
      productHome=(ProductHome)PortableRemoteObject.narrow(obj1,ProductHome.class);
    }
    catch(Exception e){
      e.printStackTrace();
    }
  }


  //添加商品信息
  public void addProduct(String pname, String brand, String spec, String unit, float price, float assprice, String pictrue, String explain, String bigcatalog, String smaillcatalog){
    try{
      productHome.create(pname,brand,spec,unit,price,assprice,pictrue,explain,bigcatalog,smaillcatalog);
    }
    catch(Exception e){
      e.printStackTrace();
    }
  }
  //获得所有商品信息
  public Collection getAllProduct(){
    Collection products=new ArrayList();
    try{
      Iterator its=productHome.findAllProduct().iterator();
      while(its.hasNext()){
        Product product=(Product)its.next();
        ProductDTO dto=new ProductDTO();
        dto.setPID(product.getPID());
        dto.setPname(product.getPname());
        dto.setBrand(product.getBrand());
        dto.setSpec(product.getSpec());
        dto.setUnit(product.getUnit());
        dto.setPrice(product.getPrice().floatValue());
        dto.setAssprice(product.getAssprice().floatValue());
        dto.setPictrue(product.getPictrue());
        dto.setExplain(product.getExplain());
        dto.setBigcatalog(product.getBigcatalog());
        dto.setSmaillcatalog(product.getSmaillcatalog());
        products.add(product);
      }
    }
    catch(Exception e){
      e.printStackTrace();
    }
    return products;
  }
  //删除一个商品信息
  public void delProduct(String pid){
    try{
      Product product=productHome.findProduct(pid);
      product.remove();
    }
    catch(Exception e){
      e.printStackTrace();
    }
  }
  //修改一个商品信息
  public void updateProduct(String pid,String pname, String brand, String spec, String unit, float price, float assprice, String pictrue, String explain, String bigcatalog, String smaillcatalog){
    try{
      Product product=productHome.findProduct(pid);
      product.setPname(pname);
      product.setBrand(brand);
      product.setSpec(spec);
      product.setUnit(unit);
      product.setPrice(new Float(price));
      product.setAssprice(new Float(assprice));
      product.setPictrue(pictrue);
      product.setExplain(explain);
      product.setBigcatalog(bigcatalog);
      product.setSmaillcatalog(smaillcatalog);
    }
    catch(Exception e){
      e.printStackTrace();
    }
  }
}