📄 showgoodbooks.java
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package scwcd.lab04;
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
public class ShowGoodBooks extends HttpServlet {
public void doGet(HttpServletRequest request,
HttpServletResponse response)
throws IOException {
ServletContext context = getServletContext();
// 从 ServletContext 对象取出 allBooks 属性
// （参考 InitializeBookList.java 第 43 行）
GoodBooks books = (GoodBooks) context.getAttribute("allBooks");
Iterator items = books.getBookList();
response.setContentType("text/html;charset=GB2312");
PrintWriter out = response.getWriter();
out.println("<HTML>");
out.println("<HEAD>");
out.println("<TITLE>Java 好书推荐</TITLE>");
out.println("</HEAD>");
out.println("<H2>Java 好书推荐</H2>");
out.println("<TABLE border=1 WIDTD=100%");
// 显示栏位名称
out.println("<TR>");
out.println("<TD bgcolor=#C0C0C0>书名</TD>");
out.println("<TD bgcolor=#C0C0C0>作者</TD>");
out.println("<TD bgcolor=#C0C0C0>出版社</TD>");
out.println("<TD bgcolor=#C0C0C0>ISBN</TD>");
out.println("<TD bgcolor=#C0C0C0>售价</TD>");
out.println("</TR>");
// 显示每一条书籍数据
while ( items.hasNext() ) {
Book book = (Book) items.next();
out.println("<TR>");
out.println("<TD>" + book.getName() + "</TD>");
out.println("<TD>" + book.getAuthor() + "</TD>");
out.println("<TD>" + book.getPublisher() + "</TD>");
out.println("<TD>" + book.getIsbn() + "</TD>");
out.println("<TD>" + book.getPrice() + "</TD>");
out.println("</TR>");
}
out.println("</TABLE>");
out.println("</BODY>");
out.println("</HTML>");
}
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