![]() SQL Server (29) Java (25) C# (24) Machine Learning (21) Artificial Intelligence (19) OSX 10.9 (mavericks) (16) computer vision (13) ASP.NET (12) Dev best practices (12) Eclipse (11) Visual Studio 2008 (11) ANTLR (9) Visual Studio 2012 (7) Apache Spark (6) Daily Dose of Creativity (DDoC) (6) Deep learning (6) Linux (6) NLP (6) Apache Mahout (5) CLR 3.5 (5) CVPR 2017 (5) Caffe (5) Developer Tools (5) Maven (5) Perception (5) Apache Hadoop (4) CNN (4) EmguCV (4) Hadoop 2.6 (4) MLlib (4) OSX 10.10 (Yosemite) (4) Vagrant (4) Visual Studio 2010 (4) Alfresco (3) C++ (3) Game development (3) Memory (3) OpenCV (3) Python (3) SUMO (3) Apache Stanbol (2) Bag of Visual Words model (2) Books (2) CRF++ (2) Context (2) Context learning (2) Contextual Modeling (2) IIS 7. Better approach to load resources using relative p.Named Entity Recognition using Conditional Random.This method allows servlet containers to make a resource available to a servlet from any location, without using a class loader. mywebapplication META-INF WEB-INF classes filename.txt So, "/" means the root of this web application folder. war file) E.g., mywebapplication.war (unzipped) will have a hierarchy similar to the following. InputStream is = context.getResourceAsStream("/filename.txt") Here, file path is taken relative to your web application folder. ServletContext context = getServletContext() ServletContext.getResourceAsStream for web applicationsįor web applications, use the following method: Once we package the application, it is ready to be deployed anywhere, as it it is, without the overhead of having to validate resource file paths, thus improving the portability of the application. So, using this approa ch we can load resources using relative paths in a hard disk location independent manner. If you place the resources in another sub folder, then you have to specify the path relative to src/main/resources/ path. We can verify this using the following command to extract content of jar file: So, if we add a resource immediately inside this folder, during packaging, the file will be located in the immediate folder in. Usually, in Java projects resources such as configuration files, images etc. InputStream input = ("/config.properties") Parameters: path - the path to the file to open: options - options specifying how the file is. Here, specified relative path will work irrespective of the actual disk location the package is deployed.įollowing methods reads the file using class loader. Opens a file, returning an input stream to read from the file. So, best thing we can do is load the resource specifying a path relative to its class path using class loader. ![]() JVM uses class loader to load java libraries specified in class path. jar file which is the deployable unit of the project will be located here. E.g., /Users/jwithanawasam/.m2/repository) The. (In Maven, build artifacts and dependancies are stored under path given for M2_REPO class path variable. In any of the above cases, we will get java.io.FileNotFoundException error, which is a familiar exception for most java developers.Īt runtime, JVM checks the class path to locate any user defined classes and packages. Moreover, we, as developers do not have much control over JVMs current working directory. But, in a different deployment setting this may change, which leads to change the given relative path accordingly. In this scenario, it is "/Users/jwithanawasam/some_dir". However, problem with this is the relative path is depending on the current working directory, which JVM is started. This approach seems to solve the above mentioned concern. ![]() InputStream input = new FileInputStream("src/main/resources/config.properties”) So, the next option would be to use the relative file path as given below, instead of giving absolute file path: However, when ever we moved the project to another location, this path has to be changed, which is not acceptable. InputStream input = new FileInputStream("/Users/jwithanawasam/some_dir/src/main/resources/ We'll read the “ fileTest.To load a resource file such as x.properties for program use, first thing that we would consider will be specifying the absolute file path as given below: This section explains how to read a file that is available on a classpath.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |