数据校验DataValiation

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struts2

Struts JSP Java Apache XML

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.enable.DynamicMethodInvocation" value="false" />
    <constant name="struts.devMode" value="false" />

    
<package name="default" namespace="/" extends="struts-default">
        <action name="register" class="com.demo.struts2.action.RegisterAction">
            <result name="success">
/result.jsp
            </result>
            <result name="input">
/register.jsp
            </result>
        </action>
    </package>
</struts>

RegisterAction.java
package com.demo.struts2.action;
import java.util.Calendar;
import java.util.Date;
import com.opensymphony.xwork2.ActionSupport;

public class RegisterAction extends ActionSupport{
private String username;
private String password;
private String repassword;
private int age;
private Date birthday;
private Date graduate;
@Override
public String execute() throws Exception {
// TODO Auto-generated method stub
return SUCCESS;
}
@Override
public void validate() {
// TODO Auto-generated method stub
if(username==null || username.length()<4 || username.length()>6)
{
this.addActionError("username invalid");
this.addFieldError("username","username invalid in field");
}
if(password==null || password.length()<4 || password.length()>6)
{
this.addActionError("password invalid");
this.addFieldError("password","password invalid in field");
}
else if(repassword==null || repassword.length()<4 || repassword.length()>6)
{
this.addActionError("repassword invalid");
this.addFieldError("repassword","password invalid in field");
}
else if(!password.equals(repassword))
{
this.addActionError("the passwords not the same");
}
if(age<10 || age>50)
{
this.addActionError("age invalid");
}
if(birthday==null)
{
this.addActionError("birthday invalid");
}
if(graduate==null){
this.addActionError("graduate invalid");
}
if(birthday!=null && graduate!=null)
{
Calendar c1=Calendar.getInstance();
c1.setTime(birthday);
Calendar c2=Calendar.getInstance();
c2.setTime(graduate);
if(!c1.before(c2))
{
this.addActionError("birthday should be before graduate");
}
}
super.validate();
}
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 getRepassword() {
return repassword;
}
public void setRepassword(String repassword) {
this.repassword = repassword;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public Date getBirthday() {
return birthday;
}
public void setBirthday(Date birthday) {
this.birthday = birthday;
}
public Date getGraduate() {
return graduate;
}
public void setGraduate(Date graduate) {
this.graduate = graduate;
}
}

register.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@taglib prefix="s" uri="/struts-tags" %>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
    <base href="<%=basePath%>">

    <title>My JSP 'register.jsp' starting page</title>

<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">


</head>

<body>
    <s:form action="register" method="post">
    <s:textfield name="username" label="username"></s:textfield>
    <s:password name="password" label="password"/>
    <s:password name="repassword" label="repassword"/>
    <s:textfield name="age" label="age"/>
    <s:textfield name="birthday" label="birthday"/>
    <s:textfield name="graduate" label="graduate"/>
    <s:submit valude="submit"></s:submit>
    </s:form>
    <s:actionerror/>
    -------------------------------------------------------------------------
    <s:fielderror></s:fielderror>
</body>
</html>

result.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<%@taglib prefix="s" uri="/struts-tags" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
    <base href="<%=basePath%>">

    <title>My JSP 'result.jsp' starting page</title>

<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">


</head>

<body>
    username:<s:property value="username"/>
    password:<s:property value="password"/>
    repassword:<s:property value="repassword"/>
    age:<s:property value="age"/>
    birthday:<s:property value="birthday"/>
    graduate:<s:property value="graduate"/>
</body>
</html>

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struts开发小结 | JAVA Calendar详解

2011-03-20 14:46
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