Java类读取一个Yaml Inside Jar [英] Java Class Read a Yaml Inside Jar

问题描述

我正在尝试从jar中的另一个类读取jar中的文件。但是我不断得到同样的错误：Caught：尝试读取指标时类java.io.FileNotFoundException：metrics.yml

I am trying to read a file inside my jar from another class inside the jar. However I am continually getting the same error: Caught: class java.io.FileNotFoundException while attempting to read metrics: metrics.yml

起初我的代码做了类似的事情这个，假设它来自类的路径：

At first I had my code do something like this, assuming it was from the path of the class:

String yamlPath = ".." + File.separator + ".." + File.separator + ".." + File.separator + ".." + File.separator + "myYaml.yml";

InputStream in = new FileInputStream(new File(yamlPath));
InputStreamReader isr = new InputStreamReader(in);
BufferedReader input = new BufferedReader(isr);
yamlObj = (HashMap) javaYAML.load(input);

我也这样做，假设它可能从jar的底部开始：

I also did this assuming it might take the path from the base of the jar:

String yamlPath = "myYaml.yml";

InputStream in = new FileInputStream(new File(yamlPath));
InputStreamReader isr = new InputStreamReader(in);
BufferedReader input = new BufferedReader(isr);
yamlObj = (HashMap) javaYAML.load(input);

然后我注意到这个帖子如何从Java中读取jar文件？并发现我在路径前需要一个/。我也使用斜杠尝试了上述两种方法。

I then noticed this thread How to read a file from jar in Java? and found out that I needed a "/" before my path. I tried both methods above using the slash as well.

String yamlPath = File.seperator + ".." + File.separator + ".." + File.separator + ".." + File.separator + ".." + File.separator + "myYaml.yml";

OR

String yamlPath = File.seperator + "myYaml.yml";

我现在完全失去了对此错误的处理方法。我有没有得到关于罐子结构的东西？为什么我的文件找不到。提前感谢您提供任何帮助/信息。

I am completely lost on what to do about this error now. Is there something I am not getting about the jar structure? Why can my file not be found. Thanks in advance for any help / information.

抱歉，我忘了提到它在JAR中的位置：
该课程位于以下路径：com /a/b/c/myclass.class
yaml位于以下路径中：myYaml.yml

Sorry, I forgot to mention where it is in the JAR: The class is in the following path: com/a/b/c/myclass.class The yaml is in the following path: myYaml.yml

推荐答案

Jar中的文件不再是文件，使用此更改inputStream创建

File inside Jar is no longer a File, Change inputStream creation with this

InputStream in = YourClass.class.getResourceAsStream("myYaml.yml");

假设您的 .yml 文件位于root jar

Assuming your .yml file is at root of jar

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