Server Common SDK_JsonUtil.md

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Server Common SDK API - JsonUtil

• Date: 2024-09-02
• Version: v1.0.0

Version	Date	History
v1.0.0	2024-09-02	Initial

Table of Contents

• 1. serializeAndSort
• 2. serializeToJson
• 3. deserializeFromJson

APIs

1. serializeAndSort

Description

Serialize an object into a JSON string, sort the keys alphabetically, and remove all whitespace. This method is used to serialize the original text for signing in OpenDID.

Declaration

public static String serializeAndSort(Object obj) throws JsonProcessingException

Parameters

Name	Type	Description
obj	Object	Object to be serialized

Returns

Type	Description
String	JSON string with sorted keys and no whitespace

Usage

MyObject obj = new MyObject();
String jsonString = JsonUtil.serializeAndSort(obj);

2. serializeToJson

Description

Converts any object to a JSON string.

Declaration

public static String serializeToJson(Object obj) throws JsonProcessingException

Parameters

Name	Type	Description
obj	Object	Object to convert

Returns

Type	Description
String	JSON String

Usage

MyObject obj = new MyObject();
String jsonString = JsonUtil.serializeToJson(obj);

3. deserializeFromJson

Description

Deserializes a JSON string into an object of the specified class type.

Declaration

public static <T> T deserializeFromJson(String jsonString, Class<T> clazz) throws JsonProcessingException

Parameters

Name	Type	Description
jsonString	String	JSON string
clazz	Class	Class type to deserialize

Returns

Type	Description
T	Deserialized object

Usage

String jsonString = "{"name":"example", "age":30}";
MyObject obj = JsonUtil.deserializeFromJson(jsonString, MyObject.class);