I had to manually add the resources dir to the jar artifact using the Project Structure window. Open Project Structures window Select Artifacts and click on the + button and then select Directory Content Choose resources directory
- Open Project Structures window.
- Select Artifacts and click on the + button and then select Directory Content.
- Choose resources directory.
- Press Apply then OK.
Can I see the entries in a JAR file?
To see the entries in your jar file yes. You must then use the entry as presented in there to load it as a resource (either absolute aka. starting with '/' or relative to the class that is loading the resource aka not started with '/').
How do I add a new entry to a JAR file?
It isn't possible to add a new entry to a zip archive (which is what a jar file is). You should really try to set up your complete jar file in the first place rather than fixing it after the fact.
How to get the resource as a stream in Java?
If you are using JExcel then you can call Workbook.getWorkbook (java.io.InputStream is) and get your resource as a Stream via Class's getResourceAsStream (...) method. public void GetValues () throws Exception { Workbook w1; //reads from file w1 = Workbook.getWorkbook (WindageLogic.class. getResourceAsStream ("/Calculator/table1.xls") ); //...
How to list all jar entries in a class?
The simplest way is to put the src folder in the run classpath java -classpath src:%CLASSPATH% <your.class.name> then make sure the path is correct and included in the classpath. Use this command to list the jar entries: jar -tf <your.jar.file> You should probably use this path: "/Calculator/table1.xls" to retrieve the file.
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Is resources folder included in jar?
Introduction. When you build a java project and pack it into a jar (or a war), the files under the resources folder are included into the jar.
How do I view the resources folder in a JAR file?
This works when running inside and outside of a Jar file. PathMatchingResourcePatternResolver r = new PathMatchingResourcePatternResolver(); Resource[] resources = r. getResources("/myfolder/*"); Then you can access the data using getInputStream and the filename from getFilename .
How do you reference a resource file in Java?
In Java, we can use getResourceAsStream or getResource to read a file or multiple files from a resources folder or root of the classpath. The getResourceAsStream method returns an InputStream . // the stream holding the file content InputStream is = getClass(). getClassLoader().
How do I add a resource folder to my classpath?
URL resource = getClass()....Right-click the project.Select Properties.Select Sources.Click Add Folder for the Source Package Folders.Select the the directory where the resources exist.Click Open on the directory name.Click OK to close the Project Properties dialog.
How do you load a resource in Java?
Preferred way of loading resources in Javathis. getClass(). getResource() (or getResourceAsStream()) ,Thread. currentThread(). getContextClassLoader(). getResource(name) ,System. class. getResource(name) .
How do I load a resource file in spring boot?
Example: read file from resources/hello is a path to the file. The leading slash loads file by absolute path in classpath. ... The second argument is the Class to load the resource by. Prefer passing the Class instead of ClassLoader , because ClassLoader.getResource differs from Class.getResource in JPMS.
Where does Java look for resources?
Java programs can use two mechanisms to access resources: Applets use Applet. getCodeBase() to get the base URL for the applet code and then extend the base URL with a relative path to load the desired resource, for example with Applet. getAudioClip(url) . Applications use "well known locations" such as System.
How do you create a resource file in Java?
Java creating file with File The File's createNewFile method creates a new, empty file named by the pathname if a file with this name does not yet exist. The createNewFile returns true if the named file does not exist and was successfully created; false if the named file already exists.
How many ways we can import Java resources?
There are mainly two ways to load resources and perform operations on them. We can either load the file(present in resources folder) as inputstream or URL format and then perform operations on them.
What is classpath resource in Java?
Classpath in Java is not only used to load . class files, but also can be used to load resources e.g. properties files, images, icons, thumbnails, or any binary content. Java provides API to read these resources as InputStream or URL.
How do I create a src main resources folder?
Manually create src/main/resources path If the resources folder already isn't present in your maven project , you can just create the “resources” folder manually under src/main folder. Once the src/main/resources folder is created, we can add the resources in this path.
What is resources folder in Java project?
The resources folder belongs to the maven project structure where we place the configuration and data files related to the application. The location of the folder is “ src/main/resources “. When packaging the application as jar file, the file present in the resources folder are copied in the root target/classes folder.
How do I view resource files in spring boot?
2. Using Resource2.1. Manually. For accessing a resource from the classpath, we can simply use ClassPathResource: public Resource loadEmployeesWithClassPathResource() { return new ClassPathResource("data/employees.dat"); } ... 2.2. Using @Value. We can also inject a Resource with @Value: ... 2.3. Using ResourceLoader.
How do I read a file from SRC main resources?
Using Java getResourceAsStream() This is an example of using getResourceAsStream method to read a file from src/main/resources directory. First, we are using the getResourceAsStream method to create an instance of InputStream. Next, we create an instance of InputStreamReader for the input stream.
What are resources in Java?
In the Java programming language a resource is a piece of data that can be accessed by the code of an application. An application can access its resources through uniform resource locators, like web resources, but the resources are usually contained within the JAR file(s) of the application.
How do I read a classpath file?
Place the directory of file ( D:\myDir )in CLASSPATH and try below: InputStream in = this. getClass(). getClassLoader()....The file path isn't any use if the resource is in a JAR or WAR file. ... The getFile method of URL does not return a file name.More items...