YAML interview questions focus on it use cases & syntaxes as YAML is widely used in configuring your application, Docker, Kubernetes, Ansible, etc. This extends YAML with Spring & Java interview Q&As. These YAML interview questions will also help you learn the YAML syntax & use cases. … Read more...
YAML files are often used application configuration. We have already looked at YAML interview Questions & Answers. There are multiple ways to load a YAML file like via Spring, Java Objects, etc. In this post, how to load it into a HashMap & flatten it.
Step 1: YAML library dependency –…
Step 1: Add “snakeyaml” to maven pom.xml as a dependency
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<dependency> <groupId>org.yaml</groupId> <artifactId>snakeyaml</artifactId> <version>1.17</version> </dependency> |
Step 2: Define a YAML file under src/main/resources. For example, “logging.yml”
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paths: logsPath: /mylogs packagePrefix: com.myapp |
Step 3: Create a LoggingConfiguration Java POJO class.
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import java.util.Map; public class LogConfiguration { private Map<String, String> paths; private String packagePrefix; public Map<String, String> getPaths() { return paths; } public void setPaths(Map<String, String> paths) { this.paths = paths; } public String getPackagePrefix() { return packagePrefix; } public void setPackagePrefix(String packagePrefix) { this.packagePrefix = packagePrefix; } @Override public String toString() { return "LogConfiguration [paths=" + paths + "]"; } } |
Step 4: Finally,
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Q1. What is YAML?
A1. YAML Ain’t Markup Language. It is a human friendly data serialization standard for all programming languages. A YAML file has an extension of “.yml“.
Q2. What are the 3 rules of YAML?
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