Java 使用 ClassLoader 的绝对路径 getResourceAsStream()
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Use Absolute path for ClassLoader getResourceAsStream()
提问by user3018487
I am trying to use ClassLoader getResourceAsStream()
我正在尝试使用 ClassLoader getResourceAsStream()
My Direcory structure is like below:
我的目录结构如下：
Project1
-src
-main
-java
-webapp
-WEB-INF
-MYLOC
-someprops.properties
For classloader.getResourceAsStream("MYLOC/someprops.properties")works fine.
对于classloader.getResourceAsStream("MYLOC/someprops.properties")工作正常。
But now I have to move the properties file outside of the .war, like in C:\someprops.properties
但是现在我必须将属性文件移到 .war 之外，例如 C:\someprops.properties
But, classloader.getResourceAsStream("C:\someprops.properties")does not work.
Can it not use an absolute path?
但是，classloader.getResourceAsStream("C:\someprops.properties")不起作用。不能使用绝对路径吗？
采纳答案by Ian Roberts
If you have a native file path then you don't need to use getResourceAsStream, just create a FileInputStreamin the normal way.
如果您有本机文件路径，则不需要使用getResourceAsStream，只需FileInputStream以正常方式创建。
Properties props = new Properties();
FileInputStream in = new FileInputStream("C:\someprops.properties");
try {
props.load(in);
} finally {
in.close();
}
(you may want to wrap the FileInputStreamin a BufferedInputStreamif the file is large)
（如果文件很大，您可能希望将其包装FileInputStream在 a 中BufferedInputStream）
回答by benjamin.d
The method classloader.getResourceAsStreamlooks up resources on the classpath. If you want to load your someprops.propertiesfile with classloader.getResourceAsStreamthen add it to your classpath. Otherwise, if this is a properties file, you could always use the Properties.loadmethod.
该方法classloader.getResourceAsStream在类路径上查找资源。如果要加载someprops.properties文件，classloader.getResourceAsStream请将其添加到类路径中。否则，如果这是一个属性文件，您始终可以使用Properties.load方法。
