package tags;

import javax.servlet.jsp.tagext.BodyTagSupport;
import javax.servlet.jsp.JspWriter;
import java.io.IOException;
import javax.servlet.jsp.tagext.BodyContent;

import db.AdminOperation;

public class GetBookInfo extends BodyTagSupport {
	JspWriter out = null;

	/**
	 * 覆蓋doAfterBody（）類
	 * 
	 * @see javax.servlet.jsp.tagext.IterationTag#doAfterBody()
	 */
	public int doAfterBody() {
		// 取得BodyContent對(duì)象
		BodyContent body = getBodyContent();
		// 取得Body中的內(nèi)容
		String content = body.getString();
		// 取得JspWriter對(duì)象
		out = body.getEnclosingWriter();
		// 初始化AdminOperation對(duì)象
		AdminOperation db = new AdminOperation();
		int bookId = Integer.parseInt(content);
		// 根據(jù)bookId從數(shù)據(jù)庫(kù)中查詢圖書等級(jí)的信息
		String name = db.getBookBean(bookId).getBookType();
		// 關(guān)閉數(shù)據(jù)庫(kù)連接
		db.Close();
		try {
			out.print(name);
		} catch (IOException e) {
			e.printStackTrace();
		}
		return (SKIP_BODY);
	}
}