jstl标签库示例一

package app05a;

/**
* 书籍对象
* @author Administrator
*
*/
public class Book {

   private String isbn; // 码
   private String title; // 主题
   private double price; // 价格

   public Book(String isbn, String title, double price) {
       super();
       this.isbn = isbn;
       this.title = title;
       this.price = price;
   }
   public String getIsbn() {
       return isbn;
   }
   public void setIsbn(String isbn) {
       this.isbn = isbn;
   }
   public String getTitle() {
       return title;
   }
   public void setTitle(String title) {
       this.title = title;
   }
   public double getPrice() {
       return price;
   }
   public void setPrice(double price) {
       this.price = price;
   }



}

package app05a;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
* 书籍业务控制类(init --> service --> doget --> dopost)
*/
@WebServlet( name = "BooksServlet", urlPatterns = "/books")
public class BooksServlet extends HttpServlet {
   private static final long serialVersionUID = 1L;

    /**
     * @see HttpServlet#HttpServlet()
     */
    public BooksServlet() {
        super();
        // TODO Auto-generated constructor stub
    }

   /**
   * doget做业务处理并重定向
   */
   protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

　　　//创建对象集合,便于foreach遍历
       List<Book> books = new ArrayList<Book>();
       Book book1 = new Book("978-0980839616",
                "Java 7: A Beginner's Tutorial", 45.00);
        Book book2 = new Book("978-0980331608",
                "Struts 2 Design and Programming: A Tutorial",
                49.95);
        Book book3 = new Book("978-0975212820",
                "Dimensional Data Warehousing with MySQL: A "
                + "Tutorial", 39.95);

　　//添加入集合
        books.add(book1);
        books.add(book2);
        books.add(book3);

　　//向页面传递参数
request.setAttribute("books", books);

　　//重定向
        RequestDispatcher rd = request.getRequestDispatcher("/BookList.jsp");
        rd.forward(request, response);
   }

}

jsp页面展示:(需要引入两个jar包,可以百度搜索)

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib uri = "http://java.sun.com/jsp/jstl/core" prefix = "c" %>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
<style>
   table,tr,td{
       border: 1px solid brown;
   }
</style>
</head>
<body>
Books in Simple Table
<table>
   <tr>
       <td>ISBN</td>
       <td>Title</td>
   </tr>
   
   <c:forEach items = "${ requestScope.books}" var = "book">
   <tr>
       <td>${ book.isbn}</td>
       <td>${book.title}</td>
   </tr>
   </c:forEach>
</table>
<br/>
Books in Styled Table
<table>
   <tr style="background: #ababff;">
       <td>ISBN</td>
       <td>Title</td>
   </tr>
   
   <c:forEach items = "${ requestScope.books}" var="book" varStatus="status">
       
       <c:if test="${ status.count%2==0}">
           <tr style="background:#eef">
       </c:if>
       <c:if test="${ status.count%2 != 0}">
           <tr style="background:#dedeff">
       </c:if>
       <td>${book.isbn}</td>
       <td>${book.title}</td>
   </tr>
   </c:forEach>

</table>
<br/>
   ISBNs only:
       <c:forEach items = "${ requestScope.books}" var="book" varStatus="status">
           ${book.isbn }<c:if test="${!status.last}">,</c:if> 
       </c:forEach>
</body>
</html>

秒客网

jstl标签库示例一

相关文章