struts2 validation入门
好长时间没做struts2项目了，最近在做的时候在带select的数据校验这块居然卡壳了，所以写了个小例子，收藏起来。
用到的jar：
- commons-fileupload-1.2.1.jar
- commons-io-1.3.2.jar
- freemarker-2.3.15.jar
- jstl.jar
- ognl-2.7.3.jar
- standard.jar
- struts2-core-2.1.8.1.jar
- xwork-core-2.1.6.jar
jsp页面代码：
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@taglib prefix="s" uri="/struts-tags"%>
<!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">
<style type="text/css">
.errorMessage{
color: red;
}
</style>
<title>添加人员</title>
</head>
<body>
<h3>添加人员</h3>
<s:fielderror></s:fielderror>
<s:action name="initBooks" var="initBooks" />
<s:action name="initCities" var="initCities" />
<s:form id="form" namespace="/person" action="save" method="post">
编号：<input type="text" id="personId" name="person.id" value="${person.id }"/></br>
姓名：<input type="text" id="personName" name="person.name" value="${person.name }"/></br>
<s:select list="#initCities.cities" id="cityId" name="person.city.id" listKey="id" listValue="name" label="籍贯" value="%{person.city.id}">
</s:select>
<s:select list="#initBooks.books" id="bookId" name="bookIds" listKey="id" listValue="name" label="读过的书" multiple="true">
</s:select>
<input type="submit"/> <input type="reset"/>
</s:form>
</body>
</html>
Action代码：
package org.penguin.study.struts2.action;
import java.util.ArrayList;
import java.util.List;
import org.penguin.study.struts2.model.Book;
import org.penguin.study.struts2.model.City;
import org.penguin.study.struts2.model.Person;
import org.penguin.study.struts2.service.BookService;
import org.penguin.study.struts2.service.CityService;
import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.Preparable;
public class PersonAction extends ActionSupport {
private int personId;
private Person person;
private List<Integer> bookIds;
private List<Book> books;
private List<City> cities;
private BookService bookService = new BookService();
private CityService cityService = new CityService();
private List<Person> persons = new ArrayList<Person>() {
{
City shiJiaZhuang = new City(40, "秦皇岛");
List<Book> readedBooks = new ArrayList<Book>();
Book thinkInJava = new Book(100, "Java编程思想第四版");
Book springInAction = new Book(400, "Spring In Action第二版");
Book coreJava1 =new Book(200, "核心Java卷一第八版");
readedBooks.add(springInAction);
readedBooks.add(thinkInJava);
readedBooks.add(coreJava1);
Person yingHuaCheng = new Person(1000, "程英华");
yingHuaCheng.setCity(shiJiaZhuang);
yingHuaCheng.setBooks(readedBooks);
add(yingHuaCheng);
}
};
public String initCities() {
cities = cityService.getAll();
return SUCCESS;
}
public String initBooks(){
books = bookService.getAll();
return SUCCESS;
}
public String create() {
System.out.println("create执行了");
cities = cityService.getAll();
books = bookService.getAll();
return SUCCESS;
}
public String save() {
System.out.println("save执行了");
System.out.println(person);
return SUCCESS;
}
public String edit() {
System.out.println("edit执行了");
if (personId != 0) {
person = persons.get(0);
}
List<Book> readedBooks = person.getBooks();
if(readedBooks != null){
bookIds= new ArrayList<Integer>();
for(Book b: readedBooks){
bookIds.add(b.getId());
}
}
return SUCCESS;
}
public String view() {
System.out.println("view执行了");
return SUCCESS;
}
public int getPersonId() {
return personId;
}
public void setPersonId(int personId) {
this.personId = personId;
}
public Person getPerson() {
return person;
}
public void setPerson(Person person) {
this.person = person;
}
public List<Book> getBooks() {
return books;
}
public void setBooks(List<Book> books) {
this.books = books;
}
public List<Integer> getBookIds() {
return bookIds;
}
public void setBookIds(List<Integer> bookIds) {
this.bookIds = bookIds;
}
public List<Person> getPersons() {
return persons;
}
public void setPersons(List<Person> persons) {
this.persons = persons;
}
public List<City> getCities() {
return cities;
}
public void setCities(List<City> cities) {
this.cities = cities;
}
public BookService getBookService() {
return bookService;
}
public void setBookService(BookService bookService) {
this.bookService = bookService;
}
public CityService getCityService() {
return cityService;
}
public void setCityService(CityService cityService) {
this.cityService = cityService;
}
}
校验文件：PersonAction-save-validation.xml
<!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="person.id">
<field-validator type="int">
<param name="min">10</param>
<param name="max">1000</param>
<message>编号必须在整数 ${min}和${max}之间</message>
</field-validator>
</field>
<field name="person.name">
<field-validator type="requiredstring">
<message>人员姓名必须录入</message>
</field-validator>
</field>
</validators>
struts.xml
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<constant name="struts.action.extension" value="do" />
<package name="example" extends="struts-default" namespace="/person">
<action name="create" class="org.penguin.study.struts2.action.PersonAction"
method="create">
<result>/person/create.jsp</result>
</action>
<action name="save" class="org.penguin.study.struts2.action.PersonAction"
method="save">
<result name="input">/person/create.jsp</result>
<result name="success">/person/view.jsp</result>
</action>
<action name="edit" class="org.penguin.study.struts2.action.PersonAction"
method="edit">
<result>/person/create.jsp</result>
</action>
<action name="view" class="org.penguin.study.struts2.action.PersonAction"
method="view">
<result>/person/view.jsp</result>
</action>
<action name="initCities" class="org.penguin.study.struts2.action.PersonAction"
method="initCities">
<interceptor-ref name="basicStack" />
</action>
<action name="initBooks" class="org.penguin.study.struts2.action.PersonAction"
method="initBooks">
<interceptor-ref name="basicStack" />
</action>
</package>
</struts>