Changing resource folder directory from Target classes to source in Java

Question

I am trying to read a property file from src/main/resources in my Java web application. The problem is when i tried to load the file using below code

ClassLoader classLoader = getClass().getClassLoader();
File file = new File(classLoader.getResource(fileName).getFile());

Its trying to fetch file form target classes ad getting Exception

java.io.FileNotFoundException: C:\Users\PL90169\Java%20Projects\MKPFileUploadService\target\classes\config.properties".

How to change file reading directory from target to source folder instead of target. Attached project structure here

@Leviand using utility class helped me to read property,but i am trying to read URL(ex: C:\Users\amit\Upload Folder Location), property value from prop.getProperty(property); is without \ i.e (C:UsersamitUpload Folder Location) URL.How to read URL property from property file — Amit
– Amit, Commented Jul 25, 2018 at 14:14

Leviand · Accepted Answer · 2018-07-20 11:04:07Z

1

I suggest you building an utility class, so you can easly load all properties that you need, something like:

public static String getPropertyValue(String property) throws IOException {

    Properties prop = new Properties();
    String propFileName = "config.properties";
    ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
    InputStream inputStream = classLoader.getResourceAsStream(propFileName);

    if (inputStream != null) {
        prop.load(inputStream);
    } else {
        throw new FileNotFoundException("property file '" + propFileName + "' not found in the classpath");
    }

    return prop.getProperty(property);
}

So if in your config.properties file you put something like

exampleValue=hello

when you call getPropertyValue("exampleValue") you will get hello

answered Jul 20, 2018 at 11:04

Leviand

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1 Comment

Amit Over a year ago

It helped me to read property,but i am trying to read URL(ex: C:\Users\amit\Upload Folder Location), property value from prop.getProperty(property); is without \ i.e (C:UsersamitUpload Folder Location) URL.How to read URL property from property file

Евгений Колпаков · Accepted Answer · 2018-07-20 11:28:52Z

0

May be you want this:

InputStream inputStream = getClass().getResourceAsStream("/config.properties");

ByteArrayOutputStream bOut = new ByteArrayOutputStream();
byte[] buffer = new byte[4 * 1024];
while (true) {
  int readCount = inputStream.read(buffer);
  if (readCount < 0) break;
  bOut.write(buffer, 0, readCount);
}

String configContent = bOut.toString("UTF-8");

answered Jul 20, 2018 at 11:28

Евгений Колпаков

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