jsp调用javabean实例
goodsbean.javapackage sale;
public class goodsbean{
String Product;
double Price;
public goodsbean (){
this.Product = "box";
this.Price = 5.0;
}
public void setProduct (String ProductName){
this.Product = ProductName;
}
public String getProduct(){
return (this.Product);
}
public void setPrice (double priceValue){
this.Price = priceValue;
}
public double getPrice(){
return (this.Price);
}
}
编译完生成的.class文件，放到：Tomcat 5.5\webapps\ROOT\WEB-INF\classes\sale 目录下。
调用方法：
<%@ page contentType="text/html;charset=GB2312"%>
<%//request.setCharacterEncoding("iso_8859_1");%>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>goodsbean</title>
</head>
<body>
<jsp:useBean id="goodsbean" scope="application" class="sale.goodsbean" />
<%
goodsbean.setProduct("clock");
goodsbean.setPrice(17);
%>
使用方法1：
产品：<%= goodsbean.getProduct()%><br>
税率：<%= goodsbean.getPrice()%>
<%goodsbean.setProduct("chair");
goodsbean.setPrice(3);
%>
<br>使用方法2：
产品：<jsp:getProperty name="goodsbean" property = "Product" />
<br>
税率：<jsp:getProperty name="goodsbean" property = "Price" />
</body>
</html>
注意：设置bean的属性如下
<jsp:setProperty name="goodsbean" property = "Product" value="asdf"/>
<jsp:setProperty name="goodsbean" property = "Price" value="adad" />