json to yaml converter code example

Example: json to yaml

You can convert JSON to YAML with two lines of code in Jackson:

import java.io.IOException;

import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.dataformat.yaml.YAMLMapper;

public class Library {

    public String asYaml(String jsonString) throws JsonProcessingException, IOException {
        // parse JSON
        JsonNode jsonNodeTree = new ObjectMapper().readTree(jsonString);
        // save it as YAML
        String jsonAsYaml = new YAMLMapper().writeValueAsString(jsonNodeTree);
        return jsonAsYaml;
    }

}
You will need to add dependencies to Jackson Core, DataBind and DataFormat YAML. Below is a snippet for Gradle:

compile 'com.fasterxml.jackson.core:jackson-core:2.8.6'
compile 'com.fasterxml.jackson.core:jackson-databind:2.8.6'
compile 'com.fasterxml.jackson.dataformat:jackson-dataformat-yaml:2.8.6