[单选题]请看代码
Form.jsp
<s:form action=”myAction” namespace=”/” theme=”simple”>
用户名:<s:textfield name=”user.username” /><br/>
密码:<s:password name=”user.password” /><br/>
<s:submit value=”提交”/>
</s:form>
Struts.xml
<package name=”xxx” namespace=”/” extends=”struts-default”>
<action name=”myAction” class=”cn.itcast.web.action.MyAction”/>
</package>
User.java
Public class User {
Private String username;
Private String password;
Public void setUsername(String username) {
This. username = username;
}
Public void setPassword(String password) {
This. password = password;
}
}
MyAction.java
Package cn.itcast.web.action;
Public class MyAction extends ActionSupport {
Private User user = new User();
Public void setUser(User user) {
This.user = user;
}
Public User getUser() {
Return user;
}
Public String execute() {
System.out.println(user.getUsername() + “, “ + user.getPassword());
Return null;
}
}
当在form.jsp表单中,向用户名中输入zhangSan,向密码中输入123后提交,控制台会有什么样的输出结果?()
A.null,null
B.zhangSan,123
C.zhangSan,null
D.null,zhangSan
