標籤：
demo1
form表單的Action.java檔案和jsp之間資料傳遞 目標:以註冊為模版，描述資料傳遞過程1、jsp裡的struts2表單（WebContent目錄下）
reg.jsp
<s:form name="regForm" action="RegisterAction.action" method="post">
<s:textfield label="使用者名稱" name="user.userName" title="請輸入使用者名稱！"/>
<s:textfield label="密碼" name="user.passWord" title="請輸入密碼！"/>
<s:textfield label="年齡" name="user.age"/>
<s:textfield label="Email" name="user.email"/>
<s:radio label="性別" name="user.sex" list="#{‘nan‘:‘男‘,‘nv‘:‘女‘}"value="{‘nan‘}" />
<s:checkboxlist label="愛好" name="user.hobby" list="#{‘0‘:‘籃球‘,‘1‘:‘足球‘,‘2‘:‘排球‘}" value="{‘0‘}"/>
<s:select label="班級" name="user.cls" list="{‘12(移動)‘,‘12(技術)‘,‘12(測試)‘}"value="{‘12(測試)‘}"/>
<s:textarea label="簡介" name="user.remark" cols="20" rows="5" />
<s:submit value="提交"/>
<!--name屬性均是javaBean裡的一個屬性，這樣前台輸入的資料才會進入到背景java代碼裡-->2、javaBean詳情（src目錄下，可以建立包）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 age) {
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方法是必不可少的
return user;
}
public void setUser(User user) {
this.user = user;
}
public String register(){
//把註冊的資訊存入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配置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>
<!--如果註冊成功後就到struts2裡尋找LoginAction1對應的java類，如果註冊失敗，就提示不合法的輸入-->
5、使用RegisterAction-validation.xml校正輸入的資訊
<?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>使用者名稱必須輸入</message>
</field-validator>
<field-validator type="stringlength">
<param name="minLength">4</param>
<param name="maxLength">8</param>
<message>使用者名稱長度訪問4-8</message>
</field-validator>
</field>
<field name="user.passWord">
<field-validator type="requiredstring">
<message>密碼必須輸入!</message>
</field-validator>
<field-validator type="stringlength">
<param name="minLength">6</param>
<message>密碼的長度必須大於${minLength}!</message>
</field-validator>
</field>
<field name="user.age">
<field-validator type="int">
<param name="min">1</param>
<param name="max">130</param>
<message>年齡必須在${min}-${max}之間!</message>
</field-validator>
</field>
<field name="user.email">
<field-validator type="email">
<message>必須輸入正確的email地址!</message>
</field-validator>
</field>
</validators>
6、運行效果：成功p1 p2
form表單的Action.java檔案和jsp之間資料傳遞
