Wro4j自定義XML模型位置

我已經將wro.xml放在src/main/resources中，因爲還有一些其他資源，在單元測試中訪問它們更容易。Wro4j自定義XML模型位置

我需要擴展一些Wro類以便能夠從另一個地方讀取模型，但無法使其工作。

必要的代碼

web.xml中：

<context-param> 
    <param-name>contextConfigLocation</param-name> 
    <param-value>classpath:applicationContext.xml</param-value> 
</context-param> 

<listener> 
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> 
</listener> 

<filter> 
    <filter-name>WebResourceOptimizer</filter-name> 
    <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class> 
    <init-param> 
     <param-name>targetBeanName</param-name> 
     <param-value>wroFilter</param-value> 
    </init-param> 
    <init-param> 
     <param-name>targetFilterLifecycle</param-name> 
     <param-value>true</param-value> 
    </init-param> 
</filter> 

<filter-mapping> 
    <filter-name>WebResourceOptimizer</filter-name> 
    <url-pattern>/resources/*</url-pattern> 
</filter-mapping>

applicationContext.xml中：

<bean id="wroFilter" class="ro.isdc.wro.http.ConfigurableWroFilter"> 
    <property name="properties" ref="wroProperties" /> 
</bean> 

<bean id="wroProperties" class="org.springframework.beans.factory.config.PropertiesFactoryBean"> 
    <property name="location" value="classpath:wro.properties" /> 
</bean>

wro.properties：

managerFactoryClassName=com.example.web.wro.manager.factory.MyWroManagerFactory; 
preProcessors=cssUrlRewriting,cssImport,semicolonAppender,lessCss 
postProcessors=cssMin,jsMin 
debug=true

MyWroManagerFactory：

public class MyWroManagerFactory extends CopyrightKeeperConfigurableWroManagerFactory { 
    private static final Logger LOG = LoggerFactory.getLogger(MyWroManagerFactory.class); 

    @Override 
    protected WroModelFactory newModelFactory() { 
     LOG.debug("Load wro.xml directly from classpath"); 
     return new XmlModelFactory() { 
      @Override 
      protected InputStream getModelResourceAsStream() throws IOException { 
       final String resourceLocation = getDefaultModelFilename(); 
       final InputStream stream = getClass().getResourceAsStream(resourceLocation); 

       if (stream == null) { 
        throw new IOException("Invalid resource requested: " + resourceLocation); 
       } 

       return stream; 
      } 
     }; 
    } 
}

CopyrightKeeperConfigurableWroManagerFactory：

public class CopyrightKeeperConfigurableWroManagerFactory extends ConfigurableWroManagerFactory { 
    private static final Logger LOG = LoggerFactory.getLogger(CopyrightKeeperConfigurableWroManagerFactory.class); 

    private static final String[] PROCESSORS = { 
     CssImportPreProcessor.ALIAS, 
     JawrCssMinifierProcessor.ALIAS, 
     CssMinProcessor.ALIAS, 
     JSMinProcessor.ALIAS 
    }; 

    @Override 
    protected void contributePreProcessors(final Map<String, ResourcePreProcessor> map) { 
     for (String processor : PROCESSORS) { 
      if (map.containsKey(processor)) { 
       LOG.debug("Apply CopyrightKeeperProcessorDecorator on " + processor); 
       map.put(processor, CopyrightKeeperProcessorDecorator.decorate(map.get(processor))); 
      } 
     } 
    } 
}

爲什麼它不能找到classes/wro.xml /如何使用自定義位置wro.xml？

編輯下面是完整的日誌輸出：http://pastebin.com/NeNy1NH4

來源

2013-05-29 dtrunk

的問題是，您是相對於MyWroManagerFactory類模型加載：

final InputStream stream = getClass().getResourceAsStream(resourceLocation);

這意味着，它會尋找模型在類所在的文件夾中。由於您的wro.xml位於類文件夾（這是類路徑根），你應該使用下列內容：

ClassLoader.getSystemResourceAsStream(resourceLocation);

另外，您可以使用ClasspathUriLocator：

new ClasspathUriLocator().locate("classpath:" + resourceLocation)

EDITED：顯然這個例子發現了一個問題，描述如下issue：直到修復準備就緒，以下選項可用：

來源

2013-05-29 14:08:27

這並沒有解決它:-(見上文EDIT部分。 – dtrunk

這是因爲getDefaultModelFilename（）;返回/WEB-INF/wro.xml，而在classes文件夾中有wro.xml。請在您的類路徑中創建一個WEB-INF文件夾，或者不要使用getDefaultModelFilename（）方法。 –

不，getDefaultModelFilename（）返回wro.xml：https://github.com/alexo/wro4j/blob/1.6.x/wro4j-core/src/main/java/ro/isdc/wro/model/factory/XmlModelFactory .java＃L394 – dtrunk

Wro4j自定義XML模型位置

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