How to convert java object to properties format

Introduction

How to convert java object to properties format?

This article will show you how to convert java object to properties format.

Add Dependencies

<dependency>
    <groupId>com.fasterxml.jackson.dataformat</groupId>
    <artifactId>jackson-dataformat-properties</artifactId>
    <version>2.12.5</version>
</dependency>

Java Object To Properties Map

public class PropsUtils {
    
    /**
     *
     * Convert java object to properties: all fields, getter methods and is methods into properties map.
     *
     * @param object
     * @param <T>
     * @return
     */
    public <T> Map<String, String> toProperties(T object) throws IOException {
        JavaPropsMapper mapper = JavaPropsMapper.builder().build();
        JavaPropsSchema javaPropsSchema = JavaPropsSchema.emptySchema().withWriteIndexUsingMarkers(true);
        return mapper.writeValueAsMap(entity, javaPropsSchema);
    }

    /**
     *
     * Convert java object to properties: all fields only into properties map.
     *
     * @param object
     * @param <T>
     * @return
     */
    public <T> Map<String, String> toPropertiesOnlyFields(T object) throws IOException {
        JavaPropsMapper mapper = JavaPropsMapper.builder()
                .visibility(PropertyAccessor.FIELD, JsonAutoDetect.Visibility.ANY)
                .visibility(PropertyAccessor.GETTER, JsonAutoDetect.Visibility.NONE)
                .visibility(PropertyAccessor.IS_GETTER, JsonAutoDetect.Visibility.NONE).build();
        JavaPropsSchema javaPropsSchema = JavaPropsSchema.emptySchema().withWriteIndexUsingMarkers(true);
        return mapper.writeValueAsMap(entity, javaPropsSchema);
    }
}