java Struts2 xml 验证不起作用
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/13916385/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
Struts2 xml validation is not working
提问by user962206
Here is my Register-validation.xml
这是我的 Register-validation.xml
<!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">userBean.username</param>
<message>User name is required.</message>
</validator>
<validator type="required">
<param name="fieldname">profileBean.Age</param>
<message>Age is required.</message>
</validator>
</validators>
Here is my form.
这是我的表格。
<s:form action="register">
<label>UserName</label>
<s:textfield cssClass="formfield" name="userBean.username"
label="User Name" />
<br />
<label>Password</label>
<s:password cssClass="formfield" name="userBean.password"
label="Password" />
<br />
<label>First Name</label>
<s:textfield cssClass="formfield" name="profileBean.firstName"
label="First Name" />
<br />
<label>Last Name</label>
<s:textfield cssClass="formfield" name="profileBean.lastName"
label="Last Name" />
<br />
<label>Age</label>
<s:textfield cssClass="formfield" name="profileBean.age" label="Age" />
<s:submit />
</s:form>
Even though I not enter a value for username and age the form still keeps going in the success page. why is it not working?
即使我没有输入用户名和年龄的值，表单仍然会在成功页面中继续显示。为什么它不起作用？
EDIT
编辑
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.devMode" value="false" />
<constant name="struts.ui.theme" value="simple" />
<package name="basicstruts2" namespace="/Welcome" extends="struts-default">
<action name="index">
<result>WEB-INF/index.jsp</result>
</action>
<action name="HelloWorld" class="actions.HelloWorldAction"
method="execute">
<result name="success">/HelloWorld.jsp</result>
</action>
</package>
<package name="Registration" namespace="/" extends="struts-default">
<action name="register" class="actions.Register"
method="execute">
<result name="success">/thankyou.jsp</result>
</action>
</package>
</struts>
Profile Bean
配置文件 Bean
package model;
public class Profile {
private String firstName;
private String lastName;
private int age;
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
}
and User Bean
和用户豆
package model;
public class User {
private String username;
private String password;
private int accountType;//Admin - 0; User - 1;
private Profile profile;
public User(){
accountType = 1;
}
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 int getAccountType() {
return accountType;
}
public void setAccountType(int accountType) {
this.accountType = accountType;
}
public Profile getProfile() {
return profile;
}
public void setProfile(Profile profile) {
this.profile = profile;
}
}
Register Action
注册操作
public class Register extends ActionSupport implements ServletRequestAware{
public String execute(){
userBean.setProfile(getProfileBean());
return "success";
}
private User userBean;
private Profile profileBean;
HttpServletRequest request;
public User getUserBean() {
return userBean;
}
public void setUserBean(User userBean) {
this.userBean = userBean;
}
public Profile getProfileBean() {
return profileBean;
}
public void setProfileBean(Profile profileBean) {
this.profileBean = profileBean;
}
public void setServletRequest(HttpServletRequest request) {
this.request = request;
}
public HttpServletRequest getServletRequest() {
return this.request;
}
}
回答by KyelJmD
I have tried to run your code. your error is that you need to provide a result named input.will look for this result if validation fails.
我试图运行你的代码。您的错误是您需要提供一个名为input.will 的结果，如果验证失败，将查找此结果。
<package name="Registration" namespace="/" extends="struts-default">
<action name="register" class="actions.Register"
method="execute">
<result name ="input">erropage.jsp</result>
<result name="success">/thankyou.jsp</result>
</action>
</package>
回答by Viral Patel
In your Register-validation.xml file can you change the dtd definition from:
在您的 Register-validation.xml 文件中，您可以更改 dtd 定义：
<!DOCTYPE validators PUBLIC
"-//OpenSymphony Group//XWork Validator 1.0.2//EN"
"http://www.opensymphony.com/xwork/xwork-validator-1.0.2.dtd">
to
到
<!DOCTYPE validators PUBLIC "-//Apache Struts//XWork Validator 1.0.3//EN"
"http://struts.apache.org/dtds/xwork-validator-1.0.3.dtd">
So that your Register-validation.xml looks like:
这样您的 Register-validation.xml 看起来像：
<!DOCTYPE validators PUBLIC "-//Apache Struts//XWork Validator 1.0.3//EN"
"http://struts.apache.org/dtds/xwork-validator-1.0.3.dtd">
<validators>
<validator type="requiredstring">
<param name="fieldname">userBean.username</param>
<message>User name is required.</message>
</validator>
<validator type="required">
<param name="fieldname">profileBean.Age</param>
<message>Age is required.</message>
</validator>
</validators>
回答by Andrea Ligios
I use XML Validation like this (different syntax):
我像这样使用 XML 验证（不同的语法）：
<validators>
<field name="profileBean.age">
<field-validator type="required">
<message><![CDATA[ Age is required ]]></message>
</field-validator>
</field>
<field name="userBean.username">
<field-validator type="requiredstring">
<message><![CDATA[ Username is required ]]></message>
</field-validator>
</field>
</validators>
Try it.
试试看。
P.S: I've written something about this here.
EDIT:
编辑：
Try changing this
尝试改变这个
<s:form action="register">
to this
对此
<s:form action="/register">
(or eventually to <s:form action="register" namespace="/">)
（或最终到<s:form action="register" namespace="/">）
including the namespace. The error you reported in comments to AleksandrM's answer is telling you that namespaces are messed up... (and thinking about it, you are on "/Welcome", looking up for an action located in "/" without specifying a namespace... this could fire some lookup mechanism that bypass the validation file and just find the Action)
包括命名空间。您在对 AleksandrM 的回答的评论中报告的错误是告诉您名称空间被搞砸了......（考虑一下，您在“/Welcome”上，在未指定名称空间的情况下查找位于“/”中的操作.. 。这可能会触发一些查找机制，绕过验证文件，只找到操作）
I hope is this, I've run out of ideas :)
我希望是这样，我已经没有想法了:)
回答by Aleksandr M
You are using non-field validator and parameter for field name must be fieldNameinstead of fieldname. BTW it is preferable to use field validator syntax.
您正在使用非字段验证器，并且字段名称的参数必须是fieldName而不是fieldname。顺便说一句，最好使用字段验证器语法。
<field name="userBean.username">
<field-validator type="requiredstring">
<message>User name is required.</message>
</field-validator>
</field>
回答by kalai
I had the same issue.I resolved it putting actionClass-validation.xml under the same folder where my actionClass.java was residing.
我遇到了同样的问题。我解决了它，将 actionClass-validation.xml 放在我的 actionClass.java 所在的同一文件夹下。
