JavaBean测试

最新推荐文章于 2021-09-18 11:33:26 发布

原创最新推荐文章于 2021-09-18 11:33:26 发布 · 643 阅读

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CC 4.0 BY-SA版权

本文介绍了如何使用JavaBean和JSP进行数据整合，通过创建一个包含图书名称的JavaBean类，并在JSP页面上展示和更新其内容，实现了动态数据展示的功能。

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一.创建JavaBean类 BooksBean.class

package bean;

public class BooksBean {
	private String[] bookName = {"书1", "书2", "书3", "书4", "书5", "书6"};

	public String[] getBookName() {
		return bookName;
	}

	public void setBookName(String[] bookName) {
		this.bookName = bookName;
	}
	
	public String getBookName(int index){
		return bookName[index];
	}
}

二.创建测试textBean.jsp

<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>JavaBean测试</title>
</head>
<body>
	<jsp:useBean id="booksbean" scope= "page" class="bean.BooksBean" />
	<%
		out.print("<div align='center'>");
		String[] bookName = booksbean.getBookName();
		out.print("BooksBean 中默认的图书清单：<br>");
		for(int i=0;i<bookName.length;i++){
			out.print(bookName[i]+"<br>");
		}
		String[] newBookName={"书A", "书B", "书C", "书D", "书E", "书F"};
		booksbean.setBookName(newBookName);
		out.print("<hr color='red'>");
		out.print("BooksBean 中修改后的图书清单：<br>");
		bookName =booksbean.getBookName();
		for(int i=0;i<bookName.length;i++){
			out.print(bookName[i]+"<br>");
		}
		out.print("</div>");
	%>
</body>
</html>

三.输入链接地址

http://localhost:8080/项目名/jsp/textBean.jsp