用struts和hibernate编写的学校购书系统

package com.sh.action; import java.util.Iterator; import java.util.List; import java.util.Date; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpSession; import org.apache.struts2.ServletActionContext; import com.opensymphony.xwork2.ActionSupport; import com.sh.dboperation.BookDAO; import com.sh.model.Book; import com.sh.model.Order; import com.sh.model.User; public class BookAction extends ActionSupport { private int b_id; private String b_name; private double b_price; private int b_num; private int o_num; public int getB_id() { return b_id; } public void setB_id(int b_id) { this.b_id = b_id; } public String getB_name() { return b_name; } public void setB_name(String b_name) { this.b_name = b_name; } public int getB_num() { return b_num; } public void setB_num(int b_num) { this.b_num = b_num; } public int getO_num() { return o_num; } public void setO_num(int o_num) { this.o_num = o_num; } public double getB_price() { return b_price; } public void setB_price(double b_price) { this.b_price = b_price; } //添加教材action public String saveAction() throws Exception { Book book = new Book(); book.setB_name(this.b_name); book.setB_price(this.b_price); book.setB_num(this.b_num); book.setO_num(this.o_num); BookDAO.save(book); return SUCCESS; } //处理统一订购教材action public String orderCheckedAction() throws Exception { HttpServletRequest request = ServletActionContext.getRequest(); String tem[] = request.getParameterValues("o_num"); int[] o_nums = new int[tem.length]; for(int i=0;i<tem.length;i++) o_nums[i] = Integer.parseInt(tem[i]); request.setAttribute("o_nums", o_nums); Iterator bookList = null; bookList = BookDAO.ListAllBooks().iterator(); int price = 0; for(int i=0;i<o_nums.length;i++) { Book book = new Book(); book = (Book)bookList.next(); price+=price+o_nums[i]*book.getB_price(); } request.setAttribute("price", price); showAction(); return SUCCESS; } //提交订单action public String submitOrderAction() throws Exception { HttpSession session = ServletActionContext.getRequest().getSession(); int o_nums[] = (int[])session.getAttribute("o_nums"); User user = (User)session.getAttribute("user");; Iterator bookList = null; bookList = BookDAO.ListAllBooks().iterator(); Order order = new Order(); String o_detail = ""; int o_price = 0; for(int i=0;i<o_nums.length;i++) { Book book = new Book(); book = (Book)bookList.next(); book.setO_num(o_nums[i]); book.setB_num(book.getB_num()-o_nums[i]); BookDAO.updateBook(book); if(o_nums[i]!=0){ o_detail+=book.getB_name()+book.getO_num()+"本; "; o_price+=o_price+o_nums[i]*book.getB_price(); } } order.setU_name(user.getU_name()); order.setO_detail(o_detail); order.setO_date(new Date()); order.setO_price(o_price); BookDAO.saveOrder(order); showAction(); return SUCCESS; } //显示所有教材action public String showAction() throws Exception { List bookList = null; bookList = BookDAO.ListAllBooks(); HttpServletRequest request = ServletActionContext.getRequest(); request.setAttribute("bookList", bookList); return SUCCESS; } //显示所有教材action public String preAddAction() throws Exception { List bookList = null; bookList = BookDAO.ListAllBooks(); HttpServletRequest request = ServletActionContext.getRequest(); request.setAttribute("bookList", bookList); return SUCCESS; } //添加教材action public String addAction() throws Exception { Book book = new Book(); book.setB_name(this.b_name); book.setB_price(this.b_price); book.setB_num(this.b_num); book.setO_num(this.o_num); BookDAO.save(book); List bookList = null; bookList = BookDAO.ListAllBooks(); HttpServletRequest request = ServletActionContext.getRequest(); request.setAttribute("bookList", bookList); return SUCCESS; } //预跟新教材action public String preUpdateAction() throws Exception { Book book = BookDAO.getBookByB_id(b_id); HttpServletRequest request = ServletActionContext.getRequest(); request.setAttribute("book", book); return SUCCESS; } //添加教材action public String update_bookAction() throws Exception { Book book = BookDAO.getBookByB_id(this.b_id); book.setB_name(this.b_name); book.setB_price(this.b_price); book.setB_num(this.b_num); BookDAO.updateBook(book); List bookList = null; bookList = BookDAO.ListAllBooks(); HttpServletRequest request = ServletActionContext.getRequest(); request.setAttribute("bookList", bookList); return SUCCESS; } }