In this tutorial, we will see how to convert a JSON String to Java Collection Map Object using Jackson Library,
Make sure you have added the Jackson Dependency in your Gradle/Maven project.
Gradle:implementation group: 'com.fasterxml.jackson.core', name: 'jackson-databind', version: '2.13.4'
Maven:<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.13.4</version>
</dependency>
Example: Json String to Java using Jackson Library
import com.fasterxml.jackson.databind.ObjectMapper;
import java.io.IOException;
import java.util.Map;
public class JsonStringToJavaMap {
public static void main(String[] args) {
try {
String jsonString = "{\n" +
" \"artistName\":\"Michael Jackson\",\n" +
" \"albumName\":\"Thriller\",\n" +
" \"releaseYear\":1982\n" +
"}";
ObjectMapper objectMapper = new ObjectMapper();
Map<String, String> map = objectMapper.readValue(jsonString, Map.class);
System.out.println(map);
} catch (IOException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
}
}
Output:
{artistName=Michael Jackson, albumName=Thriller, releaseYear=1982}
Related Post: Convert Java Map to JSON String
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