输入校验

lijunaccp

浏览: 153709 次
性别:
来自: 杭州

最近访客更多访客>>

abc1997

zhouYunan2010

AD钙

flamezealot

博主相关

博客

微博

相册

留言

关于我

文章分类

社区版块

存档分类

博客分类：

javaEE

Struts JSP XML HTML 框架

一．基本校验
1. 页面：register.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib uri="/struts-tags" prefix="s" %>
<!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">
<title>Insert title here</title>
</head>
<body>
	<table width="40%" align="center" border="0">
		<tr>
			<td>
				<s:actionerror cssStyle="color:red"/>
				--------------------------------------------
				<s:fielderror cssStyle="color:blue"></s:fielderror>
			</td>
		</tr>
	</table>
	<form action="register.action" method="post">
		<table width="40%" align="center" border="1">
			<tr>
				<td>username:</td>
				<td><input type="text" name="username" size="20"/></td>
			</tr>
			<tr>
				<td>password:</td>
				<td><input type="password" name="password" size="20"/></td>
			</tr>
			<tr>
				<td>re-password:</td>
				<td><input type="password" name="repassword" size="20"/></td>
			</tr>
			<tr>
				<td>age:</td>
				<td><input type="text" name="age" size="20"/></td>
			</tr>
			<tr>
				<td>birthday:</td>
				<td><input type="text" name="birthday" size="20"/></td>
			</tr>
			<tr>
				<td>graduaction:</td>
				<td><input type="text" name="graduaction" size="20"/></td>
			</tr>
			<tr>
				<td><input type="submit" value="submit"/></td>
				<td><input type="reset" value="reset"/></td>
			</tr>
		</table>
	</form>
</body>
</html>

2.控制器：RegisterAction.java

package com.test.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 graduaction;
	
	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 getGraduaction() {
		return graduaction;
	}
	public void setGraduaction(Date graduaction) {
		this.graduaction = graduaction;
	}
	
	@Override
	public String execute() throws Exception {
		System.out.println("execute invoked");
		return SUCCESS;
	}
	
	@Override
	public void validate() {
		System.out.println("invalid=========================");
		
		if(null==username||username.length()<6||username.length()>10){
			this.addActionError("username invalid");
			//this.addFieldError("username", "field error: invalid username");
		}
		if(null==password||password.length()<6||password.length()>10){
			this.addActionError("password invalid");
		}else if(null==repassword||repassword.length()<6||repassword.length()>10){
			this.addActionError("repassword invalid");
		}else if(!password.equals(repassword)){
			this.addActionError("two password should be the same");
		}
		if(age<1||age>150){
			this.addActionError("age invalid");
			//this.addFieldError("age", "field error: invalid age");
		}
		if(null==birthday){
			this.addActionError("birthday invalid");
		}
		if(null==graduaction){
			this.addActionError("graduaction invalid");
		}
		if(null!=birthday&&null!=graduaction){
			Calendar c1=Calendar.getInstance();
			c1.setTime(birthday);
			Calendar c2=Calendar.getInstance();
			c2.setTime(graduaction);
			if(c1.after(c2)){
				this.addActionError("birthday should be before graduaction"); 
			}
		}
		
	}
}

3.配置文件：struts.xml

<action name="register" class="com.test.action.RegisterAction" >
			<result name="success">/success.jsp</result>
			<result name="input">/register.jsp</result>
		</action>

4. 友好提示(相当于国际化)：RegisterAction.properties（放到Action相同的包下）
注：这是类型转换错误时系统添加的提示,另invalid.fieldvalue.是固定的

invalid.fieldvalue.username=\u7528\u6237\u540D\u4E0D\u5408\u6CD5
invalid.fieldvalue.age=\u5E74\u9F84\u4E0D\u5408\u6CD5
invalid.fieldvalue.birthday=\u751F\u65E5\u4E0D\u5408\u6CD5
invalid.fieldvalue.graduaction=\u6BD5\u4E1A\u65F6\u95F4\u4E0D\u5408\u6CD5

二．同一个Action中，不同方法的不同验证
1．改配置文件:struts.xml

<action name="register" class="com.test.action.RegisterAction" method="test">
			<result name="success">/success.jsp</result>
			<result name="input">/register.jsp</result>
		</action>

2．改Action：RegisterAction.java
注：自定义校验方法名，是validate加上执行方法名,执行方法名首字母大写，另执行完自定义的校验后还会去执行默认的validate验证方法。

package com.test.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 graduaction;
	
	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 getGraduaction() {
		return graduaction;
	}
	public void setGraduaction(Date graduaction) {
		this.graduaction = graduaction;
	}
	
	@Override
	public String execute() throws Exception {
		System.out.println("execute invoked");
		return SUCCESS;
	}
	
	public String test() throws Exception {
		System.out.println("test invoked");
		return SUCCESS;
	}
	
	public void validateTest(){
		System.out.println("invalidTest=========================");
		
		if(null==username||username.length()<6||username.length()>10){
			this.addActionError("username invalid");
			//this.addFieldError("username", "field error: invalid username");
		}
		if(null==password||password.length()<6||password.length()>10){
			this.addActionError("password invalid");
		}else if(null==repassword||repassword.length()<6||repassword.length()>10){
			this.addActionError("repassword invalid");
		}else if(!password.equals(repassword)){
			this.addActionError("two password should be the same");
		}
		if(age<1||age>150){
			this.addActionError("age invalid");
			//this.addFieldError("age", "field error: invalid age");
		}
		if(null==birthday){
			this.addActionError("birthday invalid");
		}
		if(null==graduaction){
			this.addActionError("graduaction invalid");
		}
		if(null!=birthday&&null!=graduaction){
			Calendar c1=Calendar.getInstance();
			c1.setTime(birthday);
			Calendar c2=Calendar.getInstance();
			c2.setTime(graduaction);
			if(c1.after(c2)){
				this.addActionError("birthday should be before graduaction"); 
			}
		}
	}
	
	@Override
	public void validate() {
		
		System.out.println("invalid=========================");
		
		if(null==username||username.length()<6||username.length()>10){
			this.addActionError("username invalid");
			//this.addFieldError("username", "field error: invalid username");
		}
		if(null==password||password.length()<6||password.length()>10){
			this.addActionError("password invalid");
		}else if(null==repassword||repassword.length()<6||repassword.length()>10){
			this.addActionError("repassword invalid");
		}else if(!password.equals(repassword)){
			this.addActionError("two password should be the same");
		}
		if(age<1||age>150){
			this.addActionError("age invalid");
			//this.addFieldError("age", "field error: invalid age");
		}
		if(null==birthday){
			this.addActionError("birthday invalid");
		}
		if(null==graduaction){
			this.addActionError("graduaction invalid");
		}
		if(null!=birthday&&null!=graduaction){
			Calendar c1=Calendar.getInstance();
			c1.setTime(birthday);
			Calendar c2=Calendar.getInstance();
			c2.setTime(graduaction);
			if(c1.after(c2)){
				this.addActionError("birthday should be before graduaction"); 
			}
		}
	}
}

三． Struts2标签库自带获取fielderror
1. login2.jsp

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<%@ 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=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>

	<s:form action="login">
			<s:textfield name="username" label="username" ></s:textfield>
			<s:password name="password" label="password"></s:password>
			<s:submit value="submit"></s:submit>
	</s:form>
	
</body>
</html>

2. LoginAction.java

package com.test.action;

import com.opensymphony.xwork2.ActionSupport;

public class LoginAction extends ActionSupport{

	private String username;
	private String password;
	
	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 execute() throws Exception{
		return "success";
	}
	
	@Override
	public void validate() {
		if(username!=null&&-1!=username.indexOf("hello")){
			this.addFieldError("username", "username invalid");
		}
		if(password!=null&&password.length()<4){
			this.addFieldError("password", "password invalid");
		}
	}
}

四．验证框架
1. 修改下RegisterAction.java

package com.test.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 graduaction;
	
	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 getGraduaction() {
		return graduaction;
	}
	public void setGraduaction(Date graduaction) {
		this.graduaction = graduaction;
	}
	
	@Override
	public String execute() throws Exception {
		System.out.println("execute invoked");
		return SUCCESS;
	}
	
//	public String test() throws Exception {
//		System.out.println("test invoked");
//		return SUCCESS;
//	}
//	
//	public void validateTest(){
//		System.out.println("invalidTest=========================");
//		
//		if(null==username||username.length()<6||username.length()>10){
//			this.addActionError("username invalid");
//			//this.addFieldError("username", "field error: invalid username");
//		}
//		if(null==password||password.length()<6||password.length()>10){
//			this.addActionError("password invalid");
//		}else if(null==repassword||repassword.length()<6||repassword.length()>10){
//			this.addActionError("repassword invalid");
//		}else if(!password.equals(repassword)){
//			this.addActionError("two password should be the same");
//		}
//		if(age<1||age>150){
//			this.addActionError("age invalid");
//			//this.addFieldError("age", "field error: invalid age");
//		}
//		if(null==birthday){
//			this.addActionError("birthday invalid");
//		}
//		if(null==graduaction){
//			this.addActionError("graduaction invalid");
//		}
//		if(null!=birthday&&null!=graduaction){
//			Calendar c1=Calendar.getInstance();
//			c1.setTime(birthday);
//			Calendar c2=Calendar.getInstance();
//			c2.setTime(graduaction);
//			if(c1.after(c2)){
//				this.addActionError("birthday should be before graduaction"); 
//			}
//		}
//	}
//	
//	@Override
//	public void validate() {
//		
//		System.out.println("invalid=========================");
//		
//		if(null==username||username.length()<6||username.length()>10){
//			this.addActionError("username invalid");
//			//this.addFieldError("username", "field error: invalid username");
//		}
//		if(null==password||password.length()<6||password.length()>10){
//			this.addActionError("password invalid");
//		}else if(null==repassword||repassword.length()<6||repassword.length()>10){
//			this.addActionError("repassword invalid");
//		}else if(!password.equals(repassword)){
//			this.addActionError("two password should be the same");
//		}
//		if(age<1||age>150){
//			this.addActionError("age invalid");
//			//this.addFieldError("age", "field error: invalid age");
//		}
//		if(null==birthday){
//			this.addActionError("birthday invalid");
//		}
//		if(null==graduaction){
//			this.addActionError("graduaction invalid");
//		}
//		if(null!=birthday&&null!=graduaction){
//			Calendar c1=Calendar.getInstance();
//			c1.setTime(birthday);
//			Calendar c2=Calendar.getInstance();
//			c2.setTime(graduaction);
//			if(c1.after(c2)){
//				this.addActionError("birthday should be before graduaction"); 
//			}
//		}
//	}
}

2. 在RegisterAction.java包下增加校验文件RegisterAction-validation.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE validators PUBLIC 
  		"-//OpenSymphony Group//XWork Validator 1.0.2//EN" 
  		"http://www.opensymphony.com/xwork/xwork-validator-1.0.2.dtd">
<validators>
	<field name="username">
		<field-validator type="requiredstring">
			<param name="trim">true</param>
			<message>username required</message>
		</field-validator>
		<field-validator type="stringlength">
			<param name="minLength">6</param>
			<param name="maxLength">12</param>
			<message>username should be between ${minLength} and ${maxLength}</message>
		</field-validator>
	</field>
	
	<field name="password">
		<field-validator type="requiredstring">
			<param name="trim">true</param>
			<message>password required</message>
		</field-validator>
		
		<field-validator type="stringlength">
			<param name="minLength">6</param>
			<param name="maxLength">12</param>
			<message>password should be between ${minLength} and ${maxLength}</message>
		</field-validator>
	</field>
	
	<field name="repassword">
		<field-validator type="requiredstring">
			<param name="trim">true</param>
			<message>repassword required</message>
		</field-validator>
		
		<field-validator type="stringlength">
			<param name="minLength">6</param>
			<param name="maxLength">12</param>
			<message>repassword should be between ${minLength} and ${maxLength}</message>
		</field-validator>
	</field>
	
	<field name="age">
		<field-validator type="required">
			<message>age required</message>
		</field-validator>
		<field-validator type="int">
			<param name="min">1</param>
			<param name="max">150</param>
			<message>age should be between ${min} and ${max}</message>
		</field-validator>
	</field>
	
	<field name="birthday">
		<field-validator type="required">
			<message>birthday required</message>
		</field-validator>
		<field-validator type="date">
			<param name="min">1900-1-1</param>
			<param name="max">2200-1-1</param>
			<message>birthday should be between ${min} and ${max}</message>
		</field-validator>
	</field>
	
	<field name="graduaction">
		<field-validator type="required">
			<message>graduaction required</message>
		</field-validator>
		<field-validator type="date">
			<param name="min">1920-1-1</param>
			<param name="max">2200-1-1</param>
			<message>graduaction should be between ${min} and ${max}</message>
		</field-validator>
	</field>
</validators>

注：以上是field级别的校验，还有validator级别的校验，两种级别效果是一样的，如下：

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE validators PUBLIC 
  		"-//OpenSymphony Group//XWork Validator 1.0.2//EN" 
  		"http://www.opensymphony.com/xwork/xwork-validator-1.0.2.dtd">
<validators>
	<validator type="requiredstring">
		<param name="fieldName">username</param>
		<message>username required</message>
	</validator>
	
	<validator type="stringlength">
		<param name="fieldName">username</param>
		<param name="minLength">6</param>
		<param name="maxLength">12</param>
		<message>username should be between ${minLength} and ${maxLength}</message>
	</validator>
<validators>

总结：
1.首先执行类型转换
2.执行对应的校验框架
3.执行特定方法对应的validate验证(test,validateTest)
4.执行validate()方法
如果在以上所有过程中，发现了任何错误，都不会再去执行execute()方法或
指定的特定方法(test)，页面转向了struts.xml中input这个result所指向的页面。

分享到：

类型转换与输入校验总结 | 类型转换

2010-10-26 14:42
浏览 780
评论(0)
分类:企业架构
查看更多

发表评论

您还没有登录,请您登录后再发表评论

最近访客更多访客>>

博主相关

文章分类

社区版块

存档分类

最新评论

输入校验

评论

发表评论

相关推荐

最近访客 更多访客>>

博主相关

文章分类

社区版块

存档分类

最新评论

输入校验

评论

发表评论

相关推荐

struts2.1改变配置文件默认位置

整合SSH2时需注意几点

ssh2

spring整合hibernate

代理模式

单例模式

spring整合struts2

反射案例

spring配置文件中集合类型的配置

spring用到的设计模式-工厂模式

读取applicationContext.xml的两种方式

用图形查看spring配置文件依赖关系

spring的基本操作IOC

spring的基本操作-反射

Struts2整合Hibernate

hibernate级联操作

hibernate基本操作

JDBC

文件上传

调用指定Action的方法

最近访客更多访客>>