Struts2输入校验实例

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Struts JSP JavaEE XML Web

web.xml

<?xml version="1.0" encoding="UTF-8"?>

<web-app version="2.5"

xmlns="http://java.sun.com/xml/ns/javaee"

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

xsi:schemaLocation="http://java.sun.com/xml/ns/javaee

http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">

<filter-name>struts2</filter-name>

<filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>

</filter>

<filter-mapping>

<filter-name>struts2</filter-name>

<url-pattern>/*</url-pattern>

</filter-mapping>

</web-app>

struts.xml

<?xml version="1.0" encoding="GBK" ?>

<!DOCTYPE struts PUBLIC

"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"

"http://struts.apache.org/dtds/struts-2.0.dtd">

<result name="input">/helloworld/index.jsp</result>

<result name="success">/helloworld/welcome.jsp</result>

<result name="error">/helloworld/error.jsp</result>

</action>

</package>

</struts>

LoginAction

package HelloWorld;

import com.opensymphony.xwork2.Action;

import com.opensymphony.xwork2.ActionContext;

import com.opensymphony.xwork2.ActionSupport;

public class LoginAction extends ActionSupport{

private String username;

private String password;

private String[] books;

public String[] getBooks() {

return books;

}

public void setBooks(String[] books) {

this.books = books;

}

public String execute() throws Exception{

if(this.getUsername().equals("admin")&&this.getPassword().equals("1234")){

ActionContext.getContext().getSession().put("user", this.getUsername());

BookService bs=new BookService();

this.setBooks(bs.getBooks());

return SUCCESS;

}else{

return ERROR;

}

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;

}

BookService.java

package HelloWorld;

public class BookService {

private String[] books=new String[]{

"Spring 2.0",

"Hibernate 3.2",

"Struts 2.0"

};

public String[] getBooks(){

return books;

}

LoginAction-validation.xml

<?xml version="1.0" encoding="GBK"?>

<!DOCTYPE validators PUBLIC "-//OpenSymphony Group//XWork Validator 1.0.2//EN"

"http://www.opensymphony.com/xwork/xwork-validator-1.0.2.dtd">

<field-validator type="requiredstring">

</field-validator>

</field>

<field-validator type="requiredstring">

</field-validator>

</field>

</validators>

<%@ page language="java" contentType="text/html; charset=gb2312"

pageEncoding="gb2312"%>

<%@ taglib prefix="s" uri="/struts-tags" %>

<html>

<head>

</head>

<body>

<s:form action="Login">

<s:textfield name="username" key="username"></s:textfield>

<s:password name="password" key="password"></s:password>

<s:submit value="login"></s:submit>

</s:form>

</body>

</html>

welcome.jsp

<%@ page language="java" contentType="text/html; charset=gb2312"

pageEncoding="gb2312"%>

<%@ page isELIgnored="false" %>

<%@ taglib prefix="s" uri="/struts-tags" %>

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>

<html>

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SQL中IN,NOT IN,EXISTS,NOT EXISTS的用法 ... | Struts2入门实例

2008-02-19 11:35
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