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  • jsp调用javabean实例

    jsp调用javabean实例

    goodsbean.java

    package 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" />

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  • 原文地址:https://www.cnblogs.com/qqnnhhbb/p/877356.html
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