hasemomega.blogg.se - Java inputstream file path

JAVA INPUTSTREAM FILE PATH ARCHIVE

I suggest using this method on the ClassLoader instance. Use the getResource() method to get the File instance when reading a file from inside a war file. Reading file from resources folder packaged as. Now, run the main() method from the console. ReadFileFromResourcesUsingGetResourceAsStream Also, provide the mainClass attribute to maven-jar-plugin and set its value to the class which has main() method and the test code. To test the above code, package the application as jar file using mvn clean package command.

Try (InputStreamReader isr = new InputStreamReader(is) īufferedReader br = new BufferedReader(isr) ) Private void printFileContent(InputStream is) throws IOException Is = instance.getFileAsIOStream("data/demo.txt") InputStream is = instance.getFileAsIOStream("demo.txt") = new ReadFileFromResourcesUsingGetResourceAsStream() ReadFileFromResourcesUsingGetResourceAsStream instance Creating instance to avoid static member methods Public static void main(final String args) throws IOException Public class ReadFileFromResourcesUsingGetResourceAsStream Once we have the InputStream reference, we can use it to read the file content or pass it to any resource handler class.

Throw new IllegalArgumentException(fileName + " is not found") Private InputStream getFileAsIOStream(final String fileName) The second file data/demo.txt folder is inside a nested folder data in the resources folder. The first file demo.txt is at the root of resources folder. In the given examples, we are reading two files present in the resources folder. We can refer to this file using File instance and can use any suitable method to read the file content.

JAVA INPUTSTREAM FILE PATH ARCHIVE

So, in this case, we are reading the file outside a zipped archive so we can refer the file using relative path.

When packaging the application as war file, the file present in the resources folder are copied in the root target/app-name folder.Īfter the deployment, war files are extracted in a server work ditrectory.

We should directly read this file as InputStream. In this case, the file location is inside a zipped archive like jar-filename.jar/!filename.txt.

When packaging the application as jar file, the file present in the resources folder are copied in the root target/classes folder.

The location of the folder is “ src/main/resources“. The resources folder belongs to the maven project structure where we place the configuration and data files related to the application. Packaging the file into resources folderĢ. We will learn to read the file present inside the jar file and outside the Jar file as well.Ī file outside the jar file may be present as a war file or an Eclipse project in the development environment. Learn to read a file from the resources folder in a Java application.