productbean.java

JSF+Hibernate+Spring三层架构的一个例子

package pizzaria;

import javax.faces.context.FacesContext;
import javax.servlet.ServletContext;

public class ProductBean {
  private String id;
  private String name;
  private String description;
  private float price;

  public ProductBean() {
    FacesContext facesContext = FacesContext.getCurrentInstance();
    if (facesContext!=null) {
      String productId = (String) facesContext.getExternalContext().
        getRequestParameterMap().get("productId");
      if (productId!=null) {
        // get DatabaseUtil instance
        ServletContext servletContext = (ServletContext)
          facesContext.getExternalContext().getContext();
        DatabaseUtil dbUtil = (DatabaseUtil)
          servletContext.getAttribute("DATABASE_UTIL");
        ProductBean product = dbUtil.getProductDetails(productId);
        setId(productId);
        setName(product.getName());
        setDescription(product.getDescription());
        setPrice(product.getPrice());
      }
    }
  }

  public ProductBean(String id, String name, float price) {
    this.id = id;
    this.name = name;
    this.price = price;
  }

  public ProductBean(String id, String name, String description, float price) {
    this.id = id;
    this.name = name;
    this.description = description;
    this.price = price;
  }

  public String getId() {
    return id;
  }
  public void setId(String id) {
    this.id = id;
  }
  public String getName() {
    return name;
  }
  public void setName(String name) {
    this.name = name;
  }
  public String getDescription() {
    return description;
  }
  public void setDescription(String description) {
    this.description = description;
  }
  public float getPrice() {
    return price;
  }
  public void setPrice(float price) {
    this.price = price;
  }
}