按照别人的博客写的代码
但是出错了,路径,名称,都不会错的
代码都是简单的,不复杂
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>
<package name="struts2" extends="struts-default">
<action name="new_validate" class="action.NewValidateAction">
<result name="input">/page/validate_form.jsp</result>
<result name="success">/page/validate_form.jsp</result>
</action>
</package>
</struts>validate_form.jsp<%@ page language="java" import="java.util.*" pageEncoding="GBK"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<html>
<head>
<title>验证数据</title>
</head>
<body>
<s:form action="new_validate" validate="true">
<s:textfield name="msg" label="姓名" />
<s:textfield name="age" label="年龄"/>
<s:submit/>
</s:form>
</body>
</html>NewValidateAction-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="msg">
<field-validator type="requiredstring">
<message>请输入信息</message>
</field-validator>
</field>
<field name="age">
<field-validator type="int">
<param name="min">13</param>
<param name="max">20</param>
<message>
必须在 13至20之间
</message>
</field-validator>
</field>
</validators>package action;
import com.opensymphony.xwork2.ActionSupport;public class NewValidateAction extends ActionSupport
{
private String msg; // 必须输入
private int age; // 在13和20之间
public String getMsg()
{
return msg;
}
public void setMsg(String msg)
{
this.msg = msg;
}
public int getAge()
{
return age;
}
public void setAge(int age)
{
this.age = age;
}
}这样的话,页面上出现500错误
网上说把<s:form action="new_validate" validate="true">改成<s:form action="new_validate.action" validate="true">但还是做不到验证,我不输入msg,age也输错,但没有提示,达到效果不会出现 请输入信息 必须在 13至20之间
但是出错了,路径,名称,都不会错的
代码都是简单的,不复杂
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>
<package name="struts2" extends="struts-default">
<action name="new_validate" class="action.NewValidateAction">
<result name="input">/page/validate_form.jsp</result>
<result name="success">/page/validate_form.jsp</result>
</action>
</package>
</struts>validate_form.jsp<%@ page language="java" import="java.util.*" pageEncoding="GBK"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<html>
<head>
<title>验证数据</title>
</head>
<body>
<s:form action="new_validate" validate="true">
<s:textfield name="msg" label="姓名" />
<s:textfield name="age" label="年龄"/>
<s:submit/>
</s:form>
</body>
</html>NewValidateAction-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="msg">
<field-validator type="requiredstring">
<message>请输入信息</message>
</field-validator>
</field>
<field name="age">
<field-validator type="int">
<param name="min">13</param>
<param name="max">20</param>
<message>
必须在 13至20之间
</message>
</field-validator>
</field>
</validators>package action;
import com.opensymphony.xwork2.ActionSupport;public class NewValidateAction extends ActionSupport
{
private String msg; // 必须输入
private int age; // 在13和20之间
public String getMsg()
{
return msg;
}
public void setMsg(String msg)
{
this.msg = msg;
}
public int getAge()
{
return age;
}
public void setAge(int age)
{
this.age = age;
}
}这样的话,页面上出现500错误
网上说把<s:form action="new_validate" validate="true">改成<s:form action="new_validate.action" validate="true">但还是做不到验证,我不输入msg,age也输错,但没有提示,达到效果不会出现 请输入信息 必须在 13至20之间
这个需要在web.xml
<filter>
<filter-name>struts2</filter-name>
<filter-class>
org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter
</filter-class>
</filter> <filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>*.action</url-pattern>
</filter-mapping>
<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_ID" version="2.4"
xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<display-name>Spec Builder</display-name>
<filter>
<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>
<%@ page language="java" import="java.util.*" pageEncoding="GBK"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<html>
<head>
<title>验证数据</title>
</head>
<body>
<s:form action="new_validate" validate="true">
<s:textfield name="msg" label="姓名" />
<s:textfield name="age" label="年龄"/>
<s:submit/>
</s:form>
</body>
</html>