如何显示玻璃鱼文件夹中的图像? [英] How to display images located in glass fish folder?

问题描述

我正在使用JSF和glassfish 4.0.我知道可以直接访问放置在项目资源文件夹下的images目录中的所有图像.我想知道如何显示玻璃鱼文件夹中的图像.我在玻璃鱼域下创建了一个图像文件夹，并希望在JSF页面中显示此图像.谁能让我知道我该怎么做?我对此很陌生，因此需要一些帮助.

I am using JSF and glassfish 4.0. I know that all the images that are placed in images directory under the resources folder of the project can be accessed directly. I wanted to know how I can display images which are located in glass fish folder.I created a images folder under glass fish domains and I want to display this images in the JSF page. Could anyone let me know how I can do that? I am new to this so need some help.

<?xml version="1.0" encoding="UTF-8"?>
    <!DOCTYPE glassfish-web-app PUBLIC "-//GlassFish.org//DTD GlassFish Application Server 3.1 Servlet 3.0//EN" "http://glassfish.org/dtds/glassfish-web-app_3_0-1.dtd">
<glassfish-web-app error-url="">
    <property name="alternatedocroot_1" value="from=/images/* dir=/test/webapp" /> 
    <class-loader delegate="true"/>
    <jsp-config>
        <property name="keepgenerated" value="true">
            <description>
                Keep a copy of the generated servlet class' java code.
            </description>
        </property>
    </jsp-config>
</glassfish-web-app>

JSF页面:

<header>
    <h:graphicImage id="banner" style="width:700px;height: 52px;"  
                    value="/images/header.jpg" />
</header>

推荐答案

根据评论，

我尝试将其添加到glassfish-web.xml

<property name="alternatedocroot_1" value="from=/images/* dir=/test/webapp/images" /> 

假设您使用的Windows在C:\上安装了GlassFish，则此特定配置需要其中包含所有图像的文件夹C:\test\webapp\images\images.

Assuming that you're using Windows with GlassFish installed on C:\, then this specific configuration expects a folder C:\test\webapp\images\images with all the images therein.

如果您实际上有一个文件夹C:\test\webapp\images，则应按以下方式进行配置:

If you actually have a folder C:\test\webapp\images, then you should be configuring as follows:

<property name="alternatedocroot_1" value="from=/images/* dir=/test/webapp" /> 

还请注意，相对于GlassFish安装文件夹或Webapp的部署空间，这绝对没有任何关系，因此我在glass fish域下创建了一个图像文件夹" 这样行不通.

Also note that this is absolutely not in any way relative to the GlassFish installation folder or the webapp's deploy space, so "I created a images folder under glass fish domains" as per the question would absolutely not work this way.

如果实际上有一个C:\path\to\glassfish\domains\test\webapp\images文件夹，则应按以下方式对其进行配置:

If you actually have a C:\path\to\glassfish\domains\test\webapp\images folder, then you should be configuring it as follows:

<property name="alternatedocroot_1" value="from=/images/* dir=/path/to/glassfish/domains/test/webapp" /> 

另请参见:

• 从Web应用程序外部加载图像/webcontext/使用< h:graphicImage>部署文件夹或< img>标签
• 如何将文件写入应用程序的resource/images文件夹?

See also:

• Load images from outside of webapps / webcontext / deploy folder using <h:graphicImage> or <img> tag
• How to write a file to resource/images folder of the app?

更新:根据您随后在问题中编辑的glassfish-web.xml内容，不应将<property>放入<jsp-config>，但必须是.

Update: as per the glassfish-web.xml contents which you edited in your question afterwards, that <property> shouldn't go in <jsp-config>, but needs to be an immediate child of <glassfish-web-app>.

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