Demo1
data passing between the Action.java file of the form form and the JSPgoal: To register as a template to describe the data transfer process1. Struts2 form in JSP (WebContent directory)
reg.jsp
<s:form name= "RegForm" action= "registeraction.action" method= "POST" >
<s:textfield label= "User name" Name= "user.username" title= "Please enter your username! "/>
<s:textfield label= "Password" name= "User.password" title= "Please enter the password! "/>
<s:textfield label= "Age" name= "User.age"/>
<s:textfield label= "Email" name= "User.email"/>
<s:radio label= "Gender" name= "User.sex" list= "#{' nan ': ' Male ', ' NV ': ' Female '}" value= "{' Nan '}"/>
<s:checkboxlist label= "Hobby" name= "User.hobby" list= "#{' 0 ': ' Basketball ', ' 1 ': ' Foot Ball ', ' 2 ': ' Volleyball '} ' value= ' {' 0 '} '/>
<s:select label= "class" Name= "User.cls" list= "{' 12 (mobile) ', ' 12 (Technology) ', ' 12 (Test) '}" value= "{' 12 (test) '}"/>
<s:textarea label= "Introduction" Name= "User.remark" cols= "5" rows=
<s:submit value= "Submit"/>
<!--The Name property is a property in JavaBean so that data entered in the foreground is entered into the Java code in the background- -2, JavaBean details (src directory, you can create a new package)Package Com.lin.pojo;Public class User {private int UserID;
Private String UserName;
Private String PassWord;
Private String sex;
Private String [] hobby;
private int age;
Private String CLS;
Private String remark;
Private String Email;
public int GetUserID () {
return UserID;
}
public void Setuserid (int userID) {
This.userid = UserID;
}
Public String GetUserName () {
return userName;
}
public void Setusername (String userName) {
This.username = UserName;
}
Public String GetPassword () {
return PassWord;
}
public void SetPassword (String passWord) {
This.password = PassWord;
}
Public String Getsex () {
return sex;
}
public void Setsex (String sex) {
This.sex = sex;
}
Public string[] Gethobby () {
return hobby;
}
public void Sethobby (string[] hobby) {
This.hobby = hobby;
}
public int getage () {
return age;
}
public void Setage (int.) {
This.age = age;
}
Public String Getcls () {
return CLS;
}
public void Setcls (String cls) {
This.cls = CLS;
}
Public String Getremark () {
return remark;
}
public void Setremark (String remark) {
This.remark = remark;
}
Public String Getemail () {
return email;
}
public void Setemail (String email) {
This.email = email;
}
｝3, package com.lin.test;
Import Java.util.Map; import Com.lin.pojo.User;
Import Com.opensymphony.xwork2.ActionContext;
Import Com.opensymphony.xwork2.ActionSupport; public class Registeraction extends Actionsupport {
User user;
Public User GetUser () {//getset method is essential
return user;
}
public void SetUser (user user) {
This.user = user;
}
Public String Register () {
Depositing registered information in session
SYSTEM.OUT.PRINTLN ("Registeraction Register" +user.getusername ());
SYSTEM.OUT.PRINTLN ("Registeraction Register" +user.getpassword ());
Map<string,object> Map2=actioncontext.getcontext (). GetSession ();
Map2.put ("UserName", User.getusername ());
Map2.put ("PassWord", User.getpassword ());
Return "Success";
}}
4. Struts2 Configure action <action name= "registeraction" class= "com.lin.test.RegisterAction" method= "register" >
<result name= "Success" type= "Chain" >LoginAction1</result>
<result name= "Input" >/register/reg.jsp</result>
</action>
<!--If the registration is successful, you can find the Java class of LoginAction1 in Struts2, if the registration fails, theMethod Input--
5. Using Registeraction-validation.xml to verify the input information
<?xml version= "1.0" encoding= "UTF-8"?>
<! DOCTYPE validators Public "-//apache struts//xwork Validator 1.0.2//en"
"HTTP://STRUTS.APACHE.ORG/DTDS/XWORK-VALIDATOR-1.0.2.DTD">
<validators>
<field name= "User.username" >
<field-validator type= "Requiredstring" >
<message> user name must be entered </message>
</field-validator>
<field-validator type= "Stringlength" >
<param name= "MinLength" >4</param>
<param name= "MaxLength" >8</param>
<message> User name length access 4-8</message>
</field-validator>
</field>
<field name= "User.password" >
<field-validator type= "Requiredstring" >
<message> Password must be entered!</message>
</field-validator>
<field-validator type= "Stringlength" >
<param name= "MinLength" >6</param>
The length of the <message> password must be greater than ${minlength}!</message>
</field-validator>
</field>
<field name= "User.age" >
<field-validator type= "int" >
<param name= "min" >1</param>
<param name= "Max" >130</param>
<message> age must be between ${min}-${max}!</message>
</field-validator>
</field>
<field name= "User.email" >
<field-validator type= "Email" >
<message> must enter the correct email address!</message>
</field-validator>
</field>
</validators>
6. Operation Effect: SuccessP1P2
Data passing between the Action.java file of the form form and the JSP
