Posts

Showing posts with the label Jackson

Java - How to convert XML to JSON with Jackson

In this section, we will show you h ow to  convert XML to JSON using Jackson. Note Extensible Markup Language (XML) lets you define and store data in a shareable manner. XML supports information exchange between computer systems such as websites, databases, and third-party applications. Predefined rules make it easy to transmit data as XML files over any network because the recipient can use those rules to read the data accurately and efficiently. Note JSON  (JavaScript Object Notation) is a lightweight format that is used for data interchanging. JSON  is built on two structures:  A collection of name/value pairs. In various languages, this is realized as an object, record, struct, dictionary, hash table, keyed list, or associative array.  An ordered list of values. In most languages, this is realized as an array, vector, list, or sequence. Download Jackson < dependency > < groupId >com.fasterxml.jackson.core</ groupId > < artifactId ...

Convert JSON Array String to List and List to JSON Array String with Jackson

In this section, we will show you h ow to c onvert JSON Array String to List and List to JSON Array String with Jackson. Note Jackson is a very popular and efficient java based library to serialize or map java objects to JSON and vice versa. Note JSON  (JavaScript Object Notation) is a lightweight format that is used for data interchanging. JSON  is built on two structures:  A collection of name/value pairs. In various languages, this is realized as an object, record, struct, dictionary, hash table, keyed list, or associative array.  An ordered list of values. In most languages, this is realized as an array, vector, list, or sequence. 1. Download Jackson < dependency > < groupId >com.fasterxml.jackson.core</ groupId > < artifactId >jackson-databind</ artifactId > < version >2.14.1</ version > </ dependency > 1. Convert JSON Array String to List User.java public class User { private String name ; private...

Convert JSON String to Map and Map to JSON String with Jackson

In this section, we will show you h ow to c onvert JSON String to Map and Map to JSON String with Jackson. Note Jackson is a very popular and efficient java based library to serialize or map java objects to JSON and vice versa. Note JSON  (JavaScript Object Notation) is a lightweight format that is used for data interchanging. JSON  is built on two structures:  A collection of name/value pairs. In various languages, this is realized as an object, record, struct, dictionary, hash table, keyed list, or associative array.  An ordered list of values. In most languages, this is realized as an array, vector, list, or sequence. 1. Download Jackson < dependency > < groupId >com.fasterxml.jackson.core</ groupId > < artifactId >jackson-databind</ artifactId > < version >2.14.1</ version > </ dependency > In Jackson, we can use   mapper.readValue(json, Map.class)   to convert a JSON string to a   Map. 2. JS...

Jackson – Convert JSON Array of Objects to List

Hello everyone, Here we will show how to convert JSON array String to List The Jackson library is composed of three components: Jackson Databind, Core, and Annotation. Jackson Databind has internal dependencies on Jackson Core and Annotation. Therefore, adding Jackson Databind to your Maven POM dependency /Gradle list will include the other dependencies as well. Maven (pom.xml)   <dependency> <groupId> com.fasterxml.jackson.core </groupId> <artifactId> jackson-databind </artifactId> <version> 2.9.8 </version> </dependency> Gradle (build.gradle)   implementation group: 'com.fasterxml.jackson.core' , name: 'jackson-core' , version: '2.13.2' JSON Array of Objects [ { "name" : "knowledgefactory1" , "salaray" : 1000 }, { "name" : "knowledgefactory2" , "salaray" : 1200 } ] Create an object to m...