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当HtmlInputText组件不为空时,“无法验证具有空值的组件”警告

icefaces-3 myfaces jsf-2 jsf java

Thraydor · 技术社区 · 7 年前

在WAS 8.5、IceFaces 3.3(JSF 2.1-MyFaces 2.1.17)上运行

<f:facet name="body">
    <ice:panelGrid columns="3">
        <ice:outputText value="User Id"></ice:outputText>
        <ice:inputText id="CreateNewUserPopUp-UserId" binding="#{menuBean.userPanel.userN}" action="#{menuBean.userPanel.checkUserId}"
            disabled="#{menuBean.userPanel.validUserId and !menuBean.userPanel.userIdExists}" maxlength="30" value="#{menuBean.userPanel.userN}">
        </ice:inputText>
        <ice:message for="CreateNewUserPopUp-UserId" id="CreateNewUserPopUp-UserIdMessage" style="color: Red; font-style: italic; font-size: 12px;"/>

        <ice:outputText value="User Name"></ice:outputText>
        <ice:inputText id="CreateNewUserPopUp-UserName"  binding="#{menuBean.userPanel.userNameT}" 
            disabled="#{!menuBean.userPanel.validUserId or (menuBean.userPanel.validUserId and menuBean.userPanel.userIdExists)}"
            style="width:300px" maxlength="30">
        </ice:inputText>
        <ice:message for="CreateNewUserPopUp-UserName" id="CreateNewUserPopUp-UserNameMessage" style="color: Red; font-style: italic; font-size: 12px;"/>
        ...
        ...
    </ice:panelGrid>
</f:facet>

private HtmlInputText userN;
private HtmlInputText userNameT

呈现弹出框时,所有字段都会初始化,并为用户Id输入框请求焦点

public void clearNewUser()
{
    setValidUserId(false);
    setUserIdExists(false);
    getUserN().setValue("");
    getUserNameT().resetValue();
    ...
    ...
    getUserN().requestFocus();
}

public void checkUserId()
{
    ...
    ...
    if (getUserN().getValue().toString().trim().length() < 1)
    {
        setMessage("User Id required");
    }
    else
    {
        DtcUsersTable dtcUsersTable = usersTableService.findById(getUserN().getValue().toString().toLowerCase());

        if (dtcUsersTable != null)
        {
            setValidUserId(true);
            setUserIdExists(true);
            setMessage("User Already Exists");
        }
        else
        {
            setValidUserId(true);
            setUserIdExists(false);
            getUserNameT().requestFocus();
            setMessage("Please Enter User Details");
        }
    }
}

如果输入框为空,则会正确显示我给用户的警告消息,说明“需要用户Id”。

如果我填充该框并按ENTER键,我的所有处理都会正确完成,输入框会被验证和禁用,因此在验证后无法编辑用户ID,用户名输入框会被选择为新焦点。然后控制台日志中会显示一条消息,说明:

000001a1 BeanValidator W   cannot validate component with empty value: APP:CreateNewUserPopUp-UserId

0000019d BeanValidator W   cannot validate component with empty value: APP:CreateNewUserPopUp-UserName

有人知道我能做些什么来解决这个问题吗?

1 回复 | 直到 7 年前

Thraydor 7 年前

我找到了答案。它在抱怨 value 属性。

我已经改变了 userN userNameT 成为 String 然后把他们转移到所有物我还将两个新命名的组件添加到 binding

<f:facet name="body">
    <ice:panelGrid columns="3">
        <ice:outputText value="User Id"></ice:outputText>
        <ice:inputText id="CreateNewUserPopUp-UserId" binding="#{menuBean.userPanel.userInputN}" action="#{menuBean.userPanel.checkUserId}"
            disabled="#{menuBean.userPanel.validUserId and !menuBean.userPanel.userIdExists}" maxlength="30"
            value="#{menuBean.userPanel.userN}">
        </ice:inputText>
        <ice:message for="CreateNewUserPopUp-UserId" id="CreateNewUserPopUp-UserIdMessage" style="color: Red; font-style: italic; font-size: 12px;"/>

        <ice:outputText value="User Name"></ice:outputText>
        <ice:inputText id="CreateNewUserPopUp-UserName"  binding="#{menuBean.userPanel.userNameInputT}" 
            disabled="#{!menuBean.userPanel.validUserId or (menuBean.userPanel.validUserId and menuBean.userPanel.userIdExists)}"
            style="width:300px" maxlength="30"
            value="#{menuBean.userPanel.userNameT}">
        </ice:inputText>
        <ice:message for="CreateNewUserPopUp-UserName" id="CreateNewUserPopUp-UserNameMessage" style="color: Red; font-style: italic; font-size: 12px;"/>
        ...
        ...
    </ice:panelGrid>
</f:facet>

我在Java类中添加了2个新的HtmlInputText组件

private HtmlInputText userNameInputT;
private HtmlInputText updateUserNameInputT;

private String userN;
private String userNameT;

更新了初始化字段的方法

public void clearNewUser()
{
    setValidUserId(false);
    setUserIdExists(false);
    setUserN("");
    setUserNameT("");
    ...
    ...
    getUserInputN().requestFocus();
}

更新了请求焦点的验证代码,并更改了用于 .getValue().toString() 在输入字段上。因为它们现在是字符串,所以不需要这样做。

public void checkUserId()
{
    ...
    ...
    if (getUserN().trim().length() < 1)
    {
        setMessage("User Id required");
    }
    else
    {
        ...
        ...
        else
        {
            setValidUserId(true);
            setUserIdExists(false);
            getUserNameInputT().requestFocus();
            setMessage("Please Enter User Details");
        }
    }
}