我尝试在JBossFuse / karaf上运行的Java中加载属性文件。
该文件位于$ [karaf.home] /etc/bean.properties
Code能够很好地加载bundle中的属性,但现在我尝试从项目本身中排除属性,代码抛出Nullpointer-Exception。
路径已在我的开发计算机上正确解析为
C:\ Users \用户有人\ DEVSTUDIO \运行时\ JBoss的熔丝-6.3.0.redhat-135 \等\ bean.properties
可以在blueprint-XML中加载property-File来配置bean,但是为了访问bean,我的代码需要CamelContext。由于我有一些在没有交换/上下文/注册表的情况下访问的静态代码块,我还希望能够在Java中加载属性。
两个函数抛出NullPointerException,我想,这是因为代码在Fuse中运行。
public static Properties getProperties(String location) {
Properties prop = new Properties();
InputStream input = null;
try {
input = PropertyLoader.class.getClassLoader().getResourceAsStream(location);
prop.load(input);
} catch (IOException ex) {
log.error("Error loading properties file from: " + location, ex);
return null;
} finally {
if (input != null) {
try {
input.close();
} catch (IOException e) {
log.error(e);
}
}
}
return prop;
}
public static Properties getPropertiesFromFilesystem(String location) {
Properties prop = new Properties();
InputStream input = null;
try {
input = new FileInputStream(location);
prop.load(input);
} catch (IOException ex) {
log.error("Error loading properties file from: " + location, ex);
return null;
} finally {
if (input != null) {
try {
input.close();
} catch (IOException e) {
log.error(e);
}
}
}
return prop;
}
例外:
显示java.lang.NullPointerException at java.util.Properties $ LineReader.readLine(Properties.java:434)[:1.8.0_91] 在java.util.Properties.load0(Properties.java:353)[:1.8.0_91] 在java.util.Properties.load(Properties.java:341)[:1.8.0_91] 在com.mycompany.util.PropertyLoader.getProperties(PropertyLoader.java:19)[319:camel-archetype-blueprint:0.0.14] 在com.mycompany.camel.blueprint.MyProcessor.process(MyProcessor.java:21)[319:camel-archetype-blueprint:0.0.14] 在org.apache.camel.processor.DelegateSyncProcessor.process(DelegateSyncProcessor.java:63)[231:org.apache.camel.camel-core:2.17.0.redhat-630135] 在org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:77)[231:org.apache.camel.camel-core:2.17.0.redhat-630135] at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:468)[231:org.apache.camel.camel-core:2.17.0.redhat-630135] 在org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:196)[231:org.apache.camel.camel-core:2.17.0.redhat-630135] 在org.apache.camel.processor.Pipeline.process(Pipeline.java:121)[231:org.apache.camel.camel-core:2.17.0.redhat-630135] 在org.apache.camel.processor.Pipeline.process(Pipeline.java:83)[231:org.apache.camel.camel-core:2.17.0.redhat-630135] 在org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:196)[231:org.apache.camel.camel-core:2.17.0.redhat-630135] at org.apache.camel.component.timer.TimerConsumer.sendTimerExchange(TimerConsumer.java:192)[231:org.apache.camel.camel-core:2.17.0.redhat-630135] 在org.apache.camel.component.timer.TimerConsumer $ 1.run(TimerConsumer.java:76)[231:org.apache.camel.camel-core:2.17.0.redhat-630135] 在java.util.TimerThread.mainLoop(Timer.java:555)[:1.8.0_91] 在java.util.TimerThread.run(Timer.java:505)[:1.8.0_91]
任何帮助都将受到高度赞赏。
答案 0 :(得分:1)
不要这样做。你正在寻找麻烦。
property-placeholder
bean)如果某些“ static ”代码需要属性,则表示它是有状态,并且此类值得实例化为bean。
答案 1 :(得分:0)
如果没有更完整的示例,不确定为什么要获得NPE。如果您需要使用没有路径的属性,您应该使用Camel的属性占位符工具: