【www.gdgbn.com--word】
主要应用就是注册信息太多,以多个页面进行逐步注册操作,大概的原理就是一个actionform对应多个action
1,建立一个actionform,有3个域,分别是name,password,email,不用添加jsp教程
2.建立一个jsp,名字叫register1.jsp,代码如下
1
<
html:form
action
=
"/register1.do"
method
=
"post"
>
2
username:<
html:text
property
=
"username"
/>
3
<
html:errors
property
=
"username"
/>
4
password:<
html:text
property
=
"password"
/>
5
<
html:errors
property
=
"password"
/>
6
<
input
type
=
"hidden"
name
=
"page"
value
=
"1"
/>
7
<
html:submit
/>
3.建立另外一个jsp,名字叫register2.jsp,代码如下
username:
password:
4.建立2个action,分别是/register1和/register2,如下图所示
5.编辑actionform的validate方法写入针对表单域的验证代码
public actionerrors validate(actionmapping mapping,
https教程ervletrequest request) {
actionerrors errors=new actionerrors();
if (request.getparameter("page").equals("1")) {
if ("".equals(request.getparameter("username"))) {
errors.add("username",new actionmessage("usernamenull"));
}
if ("".equals(request.getparameter("password"))) {
errors.add("password", new actionmessage("passwordnull"));
}
}
if (request.getparameter("page").equals("2")) {
if ("".equals(request.getparameter("email"))) {
errors.add("email", new actionmessage("emailnull"));
}
}
return errors;
}
6.编辑资源文件
7.编辑register1action代码,主要是跳到输入email的页面,代码如下
personalform personalform = (personalform) form;// todo auto-generated method stub
system.out.println(personalform.getusername());
system.out.println(personalform.getpassword());
return mapping.findforward("step2");
8.编辑register2action代码,主要是输出用户名,密码,邮箱地址,完成注册
personalform personalform = (personalform) form;// todo auto-generated method stub
system.out.println(personalform.getusername());
system.out.println(personalform.getpassword());
system.out.println(personalform.getemail());
return null;
9.增加一个actionforward
10.最后就是测试,经过测试,完成功能实现