碰到一个properties的资源文件,读取报空指针,什么原因?我使用下面2中方式读取,都是空指针。Properties pro = new Properties(); pro.load(Demo.class.getResourceAsStream("/project/db.properties")); pro.load(Thread.currentThread().getContextClassLoader().getResourceAsStream("project/db.properties"));Exception:Exception in thread "main" java.lang.NullPointerException at java.util.Properties$LineReader.readLine(Unknown Source) at java.util.Properties.load0(Unknown Source) at java.util.Properties.load(Unknown Source) at project.HashMap.Demo.main(Demo.java:23)
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