我正在阅读Thymeleaf + Spring 3 教程并尝试构建模块化应用程序。我的目标是能够从类路径中的 Jars 加载百里香模板。
为此,我SpringTemplateEngine
在下一个 xml 中配置了一个:
<bean id="templateEngine" class="org.thymeleaf.spring3.SpringTemplateEngine">
<property name="templateResolvers">
<util:set>
<ref bean="servletContextTemplateResolver" />
<ref bean="classpathPluginTemplateResolver" />
</util:set>
</property>
</bean>
<bean id="classpathPluginTemplateResolver"
class="org.mael.codex.arcana.web.thymeleaf.templates.ClasspathPluginTemplateResolver">
<property name="prefix" value="/META-INF/codexarcana/plugin/views" />
<property name="suffix" value=".html" />
<property name="templateMode" value="HTML5" />
</bean>
和 ClasspathPluginTemplateResolver 代码:
public class ClasspathPluginTemplateResolver extends TemplateResolver {
public ClasspathPluginTemplateResolver() {
super();
super.setResourceResolver(new ClasspathTemplateResolver());
}
@Override
public void setResourceResolver(IResourceResolver resourceResolver) {
throw new ConfigurationException("Cannot set a resource resolver on "
+ this.getClass().getName() + ". If "
+ "you want to set your own resource resolver, use "
+ TemplateResolver.class.getName() + "instead");
}
}
和 ClasspathTemplateResolver:
public class ClasspathTemplateResolver implements IResourceResolver {
@Override
public String getName() {
return this.getClass().getSimpleName();
}
@Override
public InputStream getResourceAsStream(
TemplateProcessingParameters templateProcessingParameters,
String resourceName) {
if (resourceName == null || resourceName.isEmpty()) {
throw new IllegalArgumentException("Resource name cannot be null");
}
try {
return new ClassPathResource(resourceName).getInputStream();
} catch (IOException e) {
throw new RuntimeException("Cannot open resource '" + resourceName
+ "'", e);
}
}
}
如何避免 ClasspathPluginTemplateResolver 解析的模板中的名称冲突?
例子:
假设我有 2 个具有此目录结构的插件:
codexarcana-poll-plugin.jar
----/META-INF/codexarcana/plugin/views/wizard.html
和
codexarcana-gravatar-plugin.jar
----/META-INF/codexarcana/plugin/views/wizard.html
在这种情况下,我相信 ClasspathTemplateResolver 会返回错误的视图,或者会出现解决此类问题的冲突。