Java 使用Struts2中的ModelDriven进行注释验证
我试图在服务器端使用注释使用Java 使用Struts2中的ModelDriven进行注释验证,java,validation,jsp,struts2,model-driven,Java,Validation,Jsp,Struts2,Model Driven,我试图在服务器端使用注释使用ModelDriven方法+验证。但似乎注释根本不起作用。我有一个简单的用户类,有姓名,姓氏,电子邮件,等等: @Entity @Table(name = "USER") @Validation public class User { private Long id; private String name; private String gender; private String country; pri
ModelDriven
方法+验证。但似乎注释根本不起作用。我有一个简单的用户
类,有姓名
,姓氏
,电子邮件
,等等:
@Entity
@Table(name = "USER")
@Validation
public class User {
private Long id;
private String name;
private String gender;
private String country;
private String aboutYou;
private Boolean mailingList;
...
@Column(name = "USER_NAME")
@RequiredStringValidator(message = "User Name field is empty.")
public String getName() {
return name;
}
@Column(name = "USER_GENDER")
@RequiredStringValidator(message = "User Gender field is empty.")
public String getGender() {
return gender;
}
...
}
我使用@RequiredStringValidator
对gender
和name
字段进行验证
处理请求的MyUserAction
类是:
@Validation
public class UserAction extends ActionSupport implements ModelDriven<User> {
private static final long serialVersionUID = -6659925652584240539L;
private User user = new User();
private List<User> userList = new ArrayList<User>();
private UserDAO userDAO = new UserDAOImpl();
@VisitorFieldValidator(message = "", appendPrefix = false)
public User getModel() {
return user;
}
/**
* To save or update user.
*
* @return String
*/
@VisitorFieldValidator(message = "", appendPrefix = false)
public String saveOrUpdate() {
userDAO.saveOrUpdateUser(user);
return SUCCESS;
}
/**
* To list all users.
*
* @return String
*/
public String list() {
userList = userDAO.listUser();
return SUCCESS;
}
@VisitorFieldValidator(message = "", appendPrefix = false)
public User getUser() {
return user;
}
...
}
我已经读到需要定义
进行验证
下面是我的register.jsp
,其中定义了必须验证的字段:
<s:form action="saveOrUpdateUser" method = "POST" validate="true">
<s:actionerror/>
<s:fielderror />
<s:push value="user">
<s:hidden name="id" />
<s:textfield name="name" label="User Name" />
<s:radio name="gender" label="Gender" list="{'Male','Female'}" />
<s:select name="country" list="{'India','USA','UK'}" headerKey=""
headerValue="Select" label="Select a country" />
<s:textarea name="aboutYou" label="About You" />
<s:checkbox name="mailingList"
label="Would you like to join our mailing list?" />
<s:submit />
</s:push>
</s:form>
问题是所有这些都不起作用。我仍然为此奋斗了4个小时,我脑子里唯一的想法告诉我,让
我自己的自行车
验证比使用这种方便的验证解决方案更容易。首先,验证
注释不受欢迎
其次,字段名应该精确映射动作中的对象。因此,push
标记是无用的,User
对象被
validate=“true”
通知Struts您正在使用客户端javascript验证
确保在JSP中启用了
s:head
标记和javascript。我不知道validate=“true”表示客户端的验证。我应该写什么来在服务器端进行验证?谢谢。删除它,它将继续。我已经添加了我的web.xml定义。可能有一些问题。我应该在删除validate=“true”后定义s:head吗?是的,您有问题-FilterDispatcher
不推荐使用。
<s:form action="saveOrUpdateUser" method = "POST" validate="true">
<s:actionerror/>
<s:fielderror />
<s:push value="user">
<s:hidden name="id" />
<s:textfield name="name" label="User Name" />
<s:radio name="gender" label="Gender" list="{'Male','Female'}" />
<s:select name="country" list="{'India','USA','UK'}" headerKey=""
headerValue="Select" label="Select a country" />
<s:textarea name="aboutYou" label="About You" />
<s:checkbox name="mailingList"
label="Would you like to join our mailing list?" />
<s:submit />
</s:push>
</s:form>
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
<description>struts2</description>
<display-name>struts2</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>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>