Failed to bind properties under ‘spring.datasource.password’ to java.lang.string:

Failed to bind properties under ‘spring.datasource.password’ to java.lang.String:

When you encounter the error message “Failed to bind properties” while working with the Spring Framework and the ‘spring.datasource.password’ property, it means that Spring Boot was unable to connect or bind the supplied value to the ‘spring.datasource.password’ property in your configuration files.

Possible Causes:

There are several possible causes for this error:

Typo or incorrect format: One potential cause is that you have made a mistake in typing the ‘spring.datasource.password’ property. Double-check for any typos or incorrect formats in your configuration files.
Missing or empty value: Another cause could be that you did not provide a value for the ‘spring.datasource.password’ property. Ensure that you have specified a valid password value.
Using an unsupported data type: The error message specifically mentions a failed binding to ‘java.lang.String’. If you are trying to bind the password to a different data type, such as an integer or boolean, you will encounter this error.
Incorrect configuration file or location: Spring Boot looks for properties in specific configuration files or locations. Make sure that your configuration files are in the correct location and are being detected by Spring Boot.
Missing or outdated dependencies: If you are using an external configuration provider or tool, such as Vault or Cloud Config Server, ensure that you have the necessary dependencies and they are up to date.

Examples:

Let’s consider an example where you have the following entry in your ‘application.properties’ file:

spring.datasource.password = myPassword123

If you receive the error message, it’s crucial to double-check for any mistakes, such as a missing character or incorrect indentation. Ensure that the property name is correct and the password value is accurate.

If you are using YAML-based configuration files, the entry would look like this:

spring:
  datasource:
    password: myPassword123

The same considerations apply; verify for any mistakes and ensure the provided value is correct.

Conclusion:

The error “Failed to bind properties” occurs when Spring Boot is unable to bind the value for the ‘spring.datasource.password’ property. Review your configuration files, check for potential mistakes, and ensure that you are using the correct data type. Take note of the possible causes mentioned above, as they will guide you towards resolving this issue.

Failed to bind properties under ‘spring.datasource.password’ to java.lang.string: