關於ResourceBundle的找不到資源的問題

 

 

1)        目錄結構：

|   build.xml
+---build
|   /---classes
|       /---com
|           /---nana
|               /---test
|                       Scrap.class
|
+---src
|   /---com
|       /--- nana
|           /--- test
|                   autogen.properties
|                   Scrap.java

 

2)        問題描述：

ResourceBundle rb = ResourceBundle.getBundle("autogen.properties",Locale.getDefault());

 

Exception in thread "main" java.util.MissingResourceException: Can't find bundle for base name autogen.properties, locale zh_CN

    at java.util.ResourceBundle.throwMissingResourceException(Unknown Source)

    at java.util.ResourceBundle.getBundleImpl(Unknown Source)

    at java.util.ResourceBundle.getBundle(Unknown Source)

    at com.nana.test.AutoGen.main(AutoGen.java:25)

 

3)        問題解決：

1.這類resource properties文件是由classloader裝載的，和java文件很類似，所以應該把這類文件加到classpath中。

2. ResourceBundle.getBundle("com.nana.test.autogen")告訴classloader裝載一個資源，其名字是 "autogen"，包名爲 "com.nana.test"。 

3. 如果想不寫包名，直接獲取autogen.properties，則需要把autogen.properties文件拷貝到classes/com/nana/test/目錄下，和調用它的類文件一起。

ResourceBundle rb = ResourceBundle.getBundle("autogen",Locale.getDefault());