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发布于 2025-01-04 21:34:46 字数 189 浏览 2 评论 0原文

我是否可以覆盖的默认实现，以始终隐式地使用 display="text" 而不是及时完整地输入？

<p:message for="hotelName" display="text" />

原文

Can I override the default implementation of <p:message ../> to always implicitly have display="text" instead of typing out in full in time?

<p:message for="hotelName" display="text" />

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完美的未来在梦里 2025-01-11 21:34:46

您可以为此扩展 PrimeFaces 的 MessageRenderer。只需重写 encodeEnd() 方法，在调用 super 方法之前设置默认属性即可。

这是一个独立的启动示例：

package com.example;

import java.io.IOException;

import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;

import org.primefaces.component.message.MessageRenderer;

public class CustomMessageRenderer extends MessageRenderer {

    @Override
    public void encodeEnd(FacesContext facesContext, UIComponent component) throws IOException {
        component.getAttributes().put("display", "text"); // You might want to check first if it isn't already set.
        super.encodeEnd(facesContext, component);
    }

}

您需要在 faces-config.xml 中注册，如下所示（不，注释魔法无法覆盖现有的渲染器，这些渲染器本身是由 XML 注册的，所以 XML 是绝对必要的）：

<render-kit>
    <renderer>
        <component-family>org.primefaces.component</component-family>
        <renderer-type>org.primefaces.component.MessageRenderer</renderer-type>
        <renderer-class>com.example.CustomMessageRenderer</renderer-class>
    </renderer>
</render-kit>

但更简单的方法是添加一点 CSS 来隐藏图标。

.ui-message-error-icon {
    display: none;
}

按照另一个答案的建议创建复合组件并不完全是微不足道的，因为的 for 目标不包含在同一复合材料中。

You could extend the PrimeFaces' MessageRenderer for that. Just override the encodeEnd() method wherein you set the default attribute before calling the super method.

Here's a self-containing kickoff example:

package com.example;

import java.io.IOException;

import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;

import org.primefaces.component.message.MessageRenderer;

public class CustomMessageRenderer extends MessageRenderer {

    @Override
    public void encodeEnd(FacesContext facesContext, UIComponent component) throws IOException {
        component.getAttributes().put("display", "text"); // You might want to check first if it isn't already set.
        super.encodeEnd(facesContext, component);
    }

}

which you need to register in faces-config.xml as follows (no, annotation magic won't work in overriding the existing renderers which are by itself registered by XML, so the XML is absolutely necessary):

<render-kit>
    <renderer>
        <component-family>org.primefaces.component</component-family>
        <renderer-type>org.primefaces.component.MessageRenderer</renderer-type>
        <renderer-class>com.example.CustomMessageRenderer</renderer-class>
    </renderer>
</render-kit>

But easier would be to just throw in a little bit of CSS to hide the icon.

.ui-message-error-icon {
    display: none;
}

Creating a composite component as suggested by the other answer isn't exactly trivial because the for target of the <p:message> isn't contained within the same composite.

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