Turn a map into a json example using gson

Convert Map to Json using Gson

Gson (also known as Google Gson) is an open source Java library released by Google. It is mainly used to serialize Java objects into JSON strings, or to deserialize JSON strings into Java objects.

Gson's POM dependency

<dependency>

 <groupId>com.google.code.gson</groupId>

 <artifactId>gson</artifactId>

 <version>2.2.4</version>

</dependency>

code

/**

 *  will Map into Json

 * 

 * @param map

 * @return String

 */

public static <T> String mapToJson(Map<String, T> map) {

 Gson gson = new Gson();

 String jsonStr = gson.toJson(map);

 return jsonStr;

}

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