/java_json

Java example to read Json file using Jackson

Primary LanguageJavaGNU General Public License v3.0GPL-3.0

Java Reading JSON Files

Java project with examples for reading JSON files.

Getting Started

The project, done in Java 8 using IntelliJ 2019.3 and Maven, simply shows 3 ways of reading JSON files only for reference:

  • Load simple Json and Array Json into JsonNode Object.
  • Load simple Json and Array Json into immutable class.
  • Load Json file with properties that not exist into class.

Maven:

<dependencies>  
    <dependency> 
        <groupId>com.fasterxml.jackson.core</groupId>  
        <artifactId>jackson-databind</artifactId>  
        <version>2.9.9</version>  
    </dependency> 
    <dependency>  
        <groupId>com.fasterxml.jackson.dataformat</groupId>  
        <artifactId>jackson-dataformat-yaml</artifactId>  
        <version>2.9.9</version>  
    </dependency> 
</dependencies>  
<build>  
    <plugins> 
        <plugin> 
            <groupId>org.apache.maven.plugins</groupId>  
            <artifactId>maven-compiler-plugin</artifactId>  
            <configuration> 
                <source>1.8</source>  
                <target>1.8</target>  
            </configuration> 
        </plugin> 
    </plugins>
</build>

JSON Files

Location: /src/main/resources

JSON File Description
contact.yaml Simple JSON.
contact_array.yaml Simple JSON array.
contact_missing.yaml Used to simulate, for example, a Json file that does not contain all the information the class expects.

Authors