Loading a Properties File from Java Package

Loading a properties file from Java package

When loading the Properties from a Class in the package com.al.common.email.templates you can use

Properties prop = new Properties();
InputStream in = getClass().getResourceAsStream("foo.properties");
prop.load(in);
in.close();

(Add all the necessary exception handling).

If your class is not in that package, you need to aquire the InputStream slightly differently:

InputStream in = 
 getClass().getResourceAsStream("/com/al/common/email/templates/foo.properties");

Relative paths (those without a leading '/') in getResource()/getResourceAsStream() mean that the resource will be searched relative to the directory which represents the package the class is in.

Using java.lang.String.class.getResource("foo.txt") would search for the (inexistent) file /java/lang/String/foo.txt on the classpath.

Using an absolute path (one that starts with '/') means that the current package is ignored.

How to open a properties file from another package on Netbeans (JAVA)

You can Use Resource Bundle for that.

ResourceBundle resBundle =  ResourceBundle.getBundle("PropertyFileName");  // without extention 
String name=  resBundle.getString("Required Attribute");  // example username

Reading Properties file in Java

Based on your exception, the InputStream is null, this means the class loader is not finding your properties file. I'm guessing that myProp.properties is in the root of your project, if that's the case, you need a preceding slash:

InputStream stream = loader.getResourceAsStream("/myProp.properties");

How to read data from java properties file using Spring Boot

You can use @PropertySource to externalize your configuration to a properties file. There is number of way to do get properties:

1.
Assign the property values to fields by using @Value with PropertySourcesPlaceholderConfigurer to resolve ${} in @Value:

@Configuration
@PropertySource("file:config.properties")
public class ApplicationConfiguration {

    @Value("${gMapReportUrl}")
    private String gMapReportUrl;

    @Bean
    public static PropertySourcesPlaceholderConfigurer propertyConfigInDev() {
        return new PropertySourcesPlaceholderConfigurer();
    }

}

2.
Get the property values by using Environment:

@Configuration
@PropertySource("file:config.properties")
public class ApplicationConfiguration {

    @Autowired
    private Environment env;

    public void foo() {
        env.getProperty("gMapReportUrl");
    }

}

Hope this can help

Java load properties file correctly

Use following :

InputStream input = Main.class.getResourceAsStream("../../../../config/settings.properties");
Properties prop = System.getProperties();
prop.load(input);

By adding ../ I am getting 1 step backward in your filesystem. In your code you were using /config....., which means C:/config..... (if it is in C drive).

The following will also work in your case. (but not in zipped file)

InputStream input = new FileInputStream("config/settings.properties");
Properties prop = System.getProperties();
prop.load(input);

Load Properties file in java

You can load your properties file in java class in this way:-

InputStream fileStream = new FileInputStream(configPropertiesFile);
currConfigProperties.load(fileStream);

Also, change your property file path to src/com/abc/applet/Configuration.properties

Also you can use this to load it from the classpath:-

currConfigProperties.load(this.getClass().getResourceAsStream(configPropertiesFile));

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