JSP中useBean动作

robinsoncrusoe · 发表于 2013-2-7 19:20:57

第1个例子 useBean1.jsp<%@ page language="java" contentType="text/html; charset=utf-8"%><html><head><title>Insert title here</title></head><body><form action="useBean2.jsp" method="post"><jsp:useBean id="stu1" scope="session" class="com.Student"/> <jsp:setProperty name="stu1" property="age" value="10000"/> <jsp:getProperty name="stu1" property="age"/> <%-- jsp:getProperty 表示获取属性值并显示出来--%><input type="submit" value="提交"></form></body></html> useBean2.jsp<%@ page language="java" contentType="text/html; charset=utf-8"%><html><head><title>Insert title here</title></head><body>传递过来的值为：<%--jsp:getProperty 表示获取属性值并显示出来--%><jsp:useBean id="stu1" scope="session" class="com.Student"/> <jsp:getProperty name="stu1" property="age"/></body></html> com.Studentpackage com;public class Student { private int sid; private String name; private int age; public int getSid() { return sid; } public void setSid(int sid) { this.sid = sid; } public String getName() { return name; } public void setName(String name) { this.name = name; } public int getAge() { return age; } public void setAge(int age) { this.age = age; } } 第2个例子 useBean3.jsp<%@ page language="java" contentType="text/html; charset=utf-8"%><html><head><title>Insert title here</title></head><body> <form action="useBean4.jsp" method="post"> <center>添加信息<br> 学生学号<input type="text" name="sid"><br> 学生姓名<input type="text" name="name"><br> 学生年龄<input type="text" name="age"><br> <input type="submit" value="确定"> </center> </form></body></html> useBean4.jsp<%@ page language="java" contentType="text/html; charset=utf-8"%><html><head><title>Insert title here</title></head><body><jsp:useBean id="stu2" scope="page" class="com.Student"></jsp:useBean><%--还有就是如果想一次设定所有参数，可以这样写 --%><jsp:setProperty name="stu2" property="*"/>添加的学号是：<jsp:getProperty name="stu2" property="sid"/><br>添加的姓名是：<jsp:getProperty name="stu2" property="name"/><br>添加的年龄是：<jsp:getProperty name="stu2" property="age"/><br></body></html>

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