JSP复习整理（五）JavaBean使用表单处理数据

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一、先建立用户输入的数据

usingGetparameter.html

<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Users to input date</title> </head> <body> <form action="usingGetParameter.jsp" method="post"></form> <table border="2" bgcolor="#F8DBE5"> <tr><td bgcolor="#F9BADA">姓名：</td> <td><input type="text" name="name"></td></tr> <tr><td bgcolor="#F9BADA">电话：</td> <td><input type="text" name="tel"></td></tr> <tr><td bgcolor="#F9BADA">电子邮箱：</td> <td><input type="text" name="email"></td></tr> <tr><td colspan="2" align="center"> <input type="submit" value="确定"> <input type="reset" value="重置"> </td></tr> </table> </body> </html>

二、服务器获取信息

usingGetParemeter.jsp

<%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%> <!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=ISO-8859-1"> <title>Jsp page show dates</title> </head> <body> <% String name = request.getParameter("name"); String email = request.getParameter("email"); String tel = request.getParameter("tel"); %> Hello~~~<%=name %>Here....<br> <br> What you input are as follows: <p> 姓名：<%=name %><br><br> 电子邮箱：<%=email %><br><br> 电话：<%=tel %> </body> </html>

三、运行结果：

上面是比较简单的介绍JavaBean处理表单的例子。。

四、JSP+JavaBean

一、用户输入信息：

showInf.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>Show users' information</title> </head> <body> <jsp:useBean id="user" scope="session" class="jsp.test.show"></jsp:useBean> <jsp:setProperty property="*" name="user"/> <%if(request.getParameter("name")==null){ %> <form action="" name="Example"method="post"> <p>姓名： <input type="text" name="name" size="17" maxlength="17"></p> <p>密码： <input type="password" name="password" size="17" maxlength="17"></p> <p>性别：<input type="radio" name="sex" value="F" checked>女 <input type="radio" name="sex" value="M">男 </p> <p>年龄： <select name="age"> <option value="10">10~20</option> <option value="20" selected>21~30</option> <option value="30">31~40</option> <option value="40">41~70</option> </select> </p> <p>特长： <input type="checkbox" name="specialty" value="Music"> 音乐 <input type="checkbox" name="specialty" value="Write"> 写作 <input type="checkbox" name="specialty" value="SoftWare"> 软件 <input type="checkbox" name="specialty" value="Photo"> 摄影 </p> <p> <input type="submit" value="传送"> <input type="submit" value="清除"> </p> </form> <%}else{ %> 姓名：<%=user.getName() %><br><br> 密码：<%=user.getPassword() %><br><br> 性别：<%=user.getSex() %><br><br> 年龄：<%=user.getAge() %><br><br> 特长：<%=user.getHobby() %><br><br> <%} %> </body> </html>

二、服务器接收信息：

show.java

package jsp.test; public class show { private String name; private String password; private String sex; private String age; private String hobby; private String[] specialty; public String getHobby() { return hobby; } public void setHobby(String hobby) { this.hobby = hobby; } public void setSpecialty(String[] specialty) { hobby=""; for(int i = 0; i<specialty.length; i++) { if(specialty[i].equals("Music")) { hobby += "音乐"; } if(specialty[i].equals("Write")) { hobby += "写作"; } if(specialty[i].equals("SoftWare")) { hobby += "软件"; } if(specialty[i].equals("Photo")) { hobby += "摄影"; } } } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getPassword() { return password; } public void setPassword(String password) { this.password = password; } public String getSex() { return sex; } public void setSex(String sex) { if(sex.equals("Male")){ this.sex="男"; } else{ this.sex="女"; } } public String getAge() { return age; } public void setAge(String age) { int age1=Integer.parseInt(age); switch(age1) { case 10: this.age="10~20"; break; case 20: this.age="21~30"; break; case 30: this.age="31~40"; break; case 40: this.age="41~70"; break; default: this.age="error"; break; } } public String[] getSpecialty() { return specialty; } }

三、运行结果：