backbookaction.java

图书管理系统

package com.web.action;

import static com.common.BeanFactory.getBean;

import java.sql.Timestamp;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;

import javax.servlet.http.HttpServletRequest;

import org.apache.struts2.ServletActionContext;

import com.bean.BackBook;
import com.bean.Book;
import com.bean.BorrowBook;
import com.bean.Operator;
import com.opensymphony.xwork2.ActionSupport;
import com.service.BooksService;
import com.service.ReaderService;

public class BackBookAction extends ActionSupport {
	private String readerid;
	private String bookid;
	private int currentPage = 1;
	private int pageCount;
	private int messageCount;
	private List<BackBook> subBackRecord;
	
	public String getReaderid() {
		return readerid;
	}

	public void setReaderid(String readerid) {
		this.readerid = readerid;
	}

	public String getBookid() {
		return bookid;
	}

	public void setBookid(String bookid) {
		this.bookid = bookid;
	}

	public int getCurrentPage() {
		return currentPage;
	}

	public void setCurrentPage(int currentPage) {
		this.currentPage = currentPage;
	}

	public int getPageCount() {
		return pageCount;
	}

	public void setPageCount(int pageCount) {
		this.pageCount = pageCount;
	}

	public int getMessageCount() {
		return messageCount;
	}

	public void setMessageCount(int messageCount) {
		this.messageCount = messageCount;
	}

	public List<BackBook> getSubBackRecord() {
		return subBackRecord;
	}

	public void setSubBackRecord(List<BackBook> subBackRecord) {
		this.subBackRecord = subBackRecord;
	}

	public String backBook() throws Exception{
		HttpServletRequest request = ServletActionContext.getRequest();
		BooksService service = (BooksService)getBean("booksService");
		ReaderService rservice = (ReaderService)getBean("readerService");
		
		Integer readerid2 = Integer.parseInt(readerid);
		Integer bookid2 = Integer.parseInt(bookid);
		BorrowBook borrowBook = (BorrowBook)service.findReaderBorrowBook(readerid2, bookid2, null).get(0);
		Book book = borrowBook.getBook();
		
		Set bookset = book.getBorrowBooks();
		bookset.add(borrowBook);
		book.setBorrowBooks(bookset);
		book.setIsborrow("0");
		borrowBook.setBook(book);
		Integer borrowbookid = borrowBook.getId();
		BackBook backbook = new BackBook();
		backbook.setBorrowid(borrowBook.getId());
		backbook.setBackBooknumber(borrowBook.getBorrowBooknumber());
		backbook.setBackdate(new Timestamp(System.currentTimeMillis()));
		backbook.setBorrowBook(borrowBook);
		Operator operator = (Operator)request.getSession().getAttribute("operator");
		Operator op = (Operator)rservice.findOpertor(operator.getId(), operator.getCardid(), null, null).get(0);
		backbook.setOperator(op);
		Set set= borrowBook.getBackBooks();
		set.add(backbook);
		borrowBook.setBackBooks(set);
		service.saveOrUpdate(book);
		service.addBorrowBooksRecord(borrowBook);
		service.addBackRecord(backbook);
		return "success";
	}
	
	public String backRecord() throws Exception{
		HttpServletRequest request = ServletActionContext.getRequest();
		BooksService service = (BooksService)getBean("booksService");
		List list = service.findBackBooksRecord(null);
		if(list==null)
			return "success";
		List<BackBook> slist = new ArrayList<BackBook>();
		Integer readerid2 = null;
		Integer bookid2 = null;
		if(readerid==null||readerid.length()==0)
			readerid2 = 0;
		else
			readerid2 = Integer.parseInt(readerid);
		if(bookid==null||bookid.length()==0)
			bookid2 = 0;
		else
			bookid2 = Integer.parseInt(bookid);
		for(Object o : list){
			BackBook backBook = (BackBook)o;
			if(readerid2==0&&bookid2==0)
				slist.add(backBook);
			if(readerid2==backBook.getBorrowBook().getReader().getId()&&
					bookid2!=backBook.getBorrowBook().getBook().getId())
				slist.add(backBook);
			if(readerid2!=backBook.getBorrowBook().getReader().getId()&&
					bookid2==backBook.getBorrowBook().getBook().getId())
				slist.add(backBook);
		}		
		separatePage(slist);
		return "success";
	}
	
	private void separatePage(List<BackBook> list){
		if(list.isEmpty()){
			messageCount = 0;
			return;
		}
		messageCount = list.size();
		if(list.size()%4==0)
			pageCount = list.size()/4;
		else
			pageCount = list.size()/4 + 1;
		if(list.size()>currentPage*4)
			subBackRecord = list.subList((currentPage-1)*4, currentPage*4);
		else
			subBackRecord = list.subList((currentPage-1)*4, list.size());
	}
}