Category: org Json

Discuss org.json ”; Previous Next orr.json is a simple Java based toolkit for JSON. You can use org.json to encode or decode JSON data. Print Page Previous Next Advertisements ”;

org.json – Property ”; Previous Next Property class provides static methods to convert properties text into a JSONObject, and vice versa. Following methods are covered in the example. toJSONObject(Properties) − Converts a properties data to JSONObject Object. toProperties(JSONObject) − Converts a JSONObject to properties object. Example import java.util.Properties; import org.json.JSONObject; import org.json.Property; public class JSONDemo { public static void main(String[] args) { Properties properties = new Properties(); properties.put(“title”, “This is a title text”); properties.put(“subtitle”, “This is a subtitle text”); System.out.println(“Properties to JSON”); JSONObject jsonObject = Property.toJSONObject(properties); System.out.println(jsonObject); System.out.println(“JSON to properties”); System.out.println(Property.toProperties(jsonObject)); } } Output Properties to JSON {“subtitle”:”This is a subtitle text”,”title”:”This is a title text”} JSON to properties {subtitle = This is a subtitle text, title = This is a title text} Print Page Previous Next Advertisements ”;

org.json – CookieList ”; Previous Next CookieList class provides static methods to convert Cookie List to JSONObject, and vice versa. Cookie List is a sequence of name/value pairs. Following methods are covered in the example. toJSONObject(String) − Converts a cookie list text to JSONObject Object. toString(JSONObject) − Converts a JSONObject to cookie list text. Example import org.json.Cookie; import org.json.CookieList; import org.json.JSONObject; public class JSONDemo { public static void main(String[] args) { String cookie = “username = Mark Den; expires = Thu, 15 Jun 2020 12:00:00 UTC; path = /”; //Case 1: Converts Cookie String to JSONObject JSONObject cookieJSONObject = Cookie.toJSONObject(cookie); JSONObject cookielistJSONObject = new JSONObject(); cookielistJSONObject.put(cookieJSONObject.getString(“name”), cookieJSONObject.getString(“value”)); String cookieList = CookieList.toString(cookielistJSONObject); System.out.println(cookieList); System.out.println(CookieList.toJSONObject(cookieList)); } } Output username=Mark Den {“username”:”Mark Den”} Print Page Previous Next Advertisements ”;

org.json – JSONStringer ”; Previous Next JSONStringer is a utility class to build a JSON Text quickly which confirms to JSON Syntax rules. Each instance of JSONStringer can produce one JSON text. Example import org.json.JSONStringer; public class JSONDemo { public static void main(String[] args) { String jsonText = new JSONStringer() .object() .key(“Name”) .value(“Robert”) .endObject() .toString(); System.out.println(jsonText); jsonText = new JSONStringer() .array() .value(“Robert”) .value(“Julia”) .value(“Dan”) .endArray() .toString(); System.out.println(jsonText); jsonText = new JSONStringer() .array() .value(“Robert”) .value(“Julia”) .value(“Dan”) .object() .key(“Name”) .value(“Robert”) .endObject() .endArray() .toString(); System.out.println(jsonText); } } Output {“Name”:”Robert”} [“Robert”,”Julia”,”Dan”] [“Robert”,”Julia”,”Dan”,{“Name”:”Robert”}] Print Page Previous Next Advertisements ”;

Org.Json – Quick Guide ”; Previous Next org.json – Overview org.json or JSON-Java is a simple Java based toolkit for JSON. You can use org.json to encode or decode JSON data. Features Specification Compliant − JSON.simple is fully compliant with JSON Specification – RFC4627. Lightweight − It have very few classes and provides the necessary functionalities like encode/decode and escaping json. XML Conversion − It provides conversion capability from JSON to XML and vice-versa. HTTP Headers − Supports HTTP Header conversion to JSON and vice versa. Cookie − Provides support for Cookie conversion to JSON and vice versa. CDL − Provides support to convert comma separated list to JSON and vice versa. No dependency − No external library dependency. Can be independently included. Java 1.6-1.11 compatible − Source code and the binary are Java 1.6-1.11 compatible org.json – Environment Setup This chapter takes you through the process of setting up Org.Json on Windows and Linux based systems. Org.Json can be easily installed and integrated with your current Java environment following a few simple steps without any complex setup procedures. User administration is required while installation. System Requirements JDK Java SE 2 JDK 1.5 or above Memory 1 GB RAM (recommended) Disk Space No minimum requirement Operating System Version Windows XP or above, Linux Let us now proceed with the steps to install Org.Json. Step 1: Verify your Java Installation First of all, you need to have Java Software Development Kit (SDK) installed on your system. To verify this, execute any of the two commands depending on the platform you are working on. If the Java installation has been done properly, then it will display the current version and specification of your Java installation. A sample output is given in the following table. Platform Command Sample Output Windows Open command console and type − >java –version java version “11.0.11” 2021-04-20 LTS Java(TM) SE Runtime Environment 18.9 (build 11.0.11+9-LTS-194) Java HotSpot(TM) 64-Bit Server VM 18.9 (build 11.0.11+9-LTS-194, mixed mode) Linux Open command terminal and type − $java –version java version “11.0.11” 2021-04-20 LTS Open JDK Runtime Environment 18.9 (build 11.0.11+9-LTS-194) Open JDK 64-Bit Server VM (build 11.0.11+9-LTS-194, mixed mode) We assume the readers of this tutorial have Java SDK version 11.0.11 installed on their system. In case you do not have Java SDK, download its current version from www.oracle.com/technetwork/java/javase/downloads/index.html and have it installed. Step 2: Set your Java Environment Set the environment variable JAVA_HOME to point to the base directory location where Java is installed on your machine. For example, Sr.No. Platform & Description 1 Windows Set JAVA_HOME to C:ProgramFilesjavajdk11.0.11 2 Linux Export JAVA_HOME = /usr/local/java-current Append the full path of Java compiler location to the System Path. Sr.No. Platform & Description 1 Windows Append the String “C:Program FilesJavajdk11.0.11bin” to the end of the system variable PATH. 2 Linux Export PATH = $PATH:$JAVA_HOME/bin/ Execute the command java -version from the command prompt as explained above. Step 3: Install Org.Json Library Download the latest version of org.json jar file from org.json @ MVNRepository. At the time of writing this tutorial, we have downloaded json-20211205, and copied it into C:>JSON folder. OS Archive name Windows json-20180813.jar Linux json-20180813.jar Mac json-20180813.jar Step 4: Set JSON_JAVA Environment Set the JSON_JAVA environment variable to point to the base directory location where org.json jar is stored on your machine. Let”s assuming we”ve stored json-20211205.jar in the JSON folder. Sr.No OS & Description 1 Windows Set the environment variable JSON_JAVA to C:JSON 2 Linux export JSON_JAVA = /usr/local/JSON 3 Mac export JSON_JAVA = /Library/JSON Step 5: Set CLASSPATH Variable Set the CLASSPATH environment variable to point to the JSON.simple jar location. Sr.No OS & Description 1 Windows Set the environment variable CLASSPATH to %CLASSPATH%;%JSON_JAVA%json-20211205.jar;.; 2 Linux export CLASSPATH = $CLASSPATH:$JSON_JAVA/json-20211205.jar:. 3 Mac export CLASSPATH = $CLASSPATH:$JSON_JAVA/json-20211205.jar:. org.json – CDL CDL class provides static methods to convert a comma delimited text into a JSONArray, and vice versa. Following methods are covered in the example. rowToJSONArray(String) − Converts a comma delimited text to JSONArray Object. rowToString(JSONArray) − Converts a JSONArray to comma delimited text. toJSONArray(String) − Converts a multi-line comma delimited text to Object of JSONArray objects. toJSONArray(JSONArray, String) − Converts a JSONArray Object and comma delimited text to JSONArray Object. Example import org.json.CDL; import org.json.JSONArray; import org.json.JSONTokener; public class JSONDemo { public static void main(String[] args) { String csvData = “INDIA, UK, USA”; //Case 1: CSV to JSON Array JSONArray jsonArray = CDL.rowToJSONArray(new JSONTokener(csvData)); System.out.println(jsonArray); //Case 2: JSONArray to CSV System.out.println(CDL.rowToString(jsonArray)); //Case 3: CSV to JSONArray of Objects csvData = “empId, name, age n” + “1, Mark, 22 n” + “2, Robert, 35 n” + “3, Julia, 18”; System.out.println(CDL.toJSONArray(csvData)); //Case 4: CSV without header jsonArray = new JSONArray(); jsonArray.put(“empId”); jsonArray.put(“name”); jsonArray.put(“age”); csvData = “1, Mark, 22 n” + “2, Robert, 35 n” + “3, Julia, 18”; System.out.println(CDL.toJSONArray(jsonArray,csvData)); } } Output [“INDIA”,”UK”,”USA”] INDIA,UK,USA

org.json – Cookie ”; Previous Next Cookie class provides static methods to convert web browser”s cookie text into a JSONObject, and vice versa. Following methods are covered in the example. toJSONObject(String) − Converts a cookie text to JSONObject Object. toString(JSONObject) − Converts a JSONObject to cookie text. Example import org.json.Cookie; import org.json.JSONObject; public class JSONDemo { public static void main(String[] args) { String cookie = “username = Mark Den; expires = Thu, 15 Jun 2020 12:00:00 UTC; path = /”; //Case 1: Converts Cookie String to JSONObject JSONObject jsonObject = Cookie.toJSONObject(cookie); System.out.println(jsonObject); //Case 2: Converts JSONObject to Cookie String System.out.println(Cookie.toString(jsonObject)); } } Output {“path”:”/”,”expires”:”Thu, 15 Jun 2020 12:00:00 UTC”,”name”:”username”,”value”:”Mark Den”} username=Mark Den;expires=Thu, 15 Jun 2020 12:00:00 UTC;path=/ Print Page Previous Next Advertisements ”;

Org.Json – Environment Setup ”; Previous Next This chapter takes you through the process of setting up Org.Json on Windows and Linux based systems. Org.Json can be easily installed and integrated with your current Java environment following a few simple steps without any complex setup procedures. User administration is required while installation. System Requirements JDK Java SE 2 JDK 1.5 or above Memory 1 GB RAM (recommended) Disk Space No minimum requirement Operating System Version Windows XP or above, Linux Let us now proceed with the steps to install Org.Json. Step 1: Verify your Java Installation First of all, you need to have Java Software Development Kit (SDK) installed on your system. To verify this, execute any of the two commands depending on the platform you are working on. If the Java installation has been done properly, then it will display the current version and specification of your Java installation. A sample output is given in the following table. Platform Command Sample Output Windows Open command console and type − >java –version java version “11.0.11” 2021-04-20 LTS Java(TM) SE Runtime Environment 18.9 (build 11.0.11+9-LTS-194) Java HotSpot(TM) 64-Bit Server VM 18.9 (build 11.0.11+9-LTS-194, mixed mode) Linux Open command terminal and type − $java –version java version “11.0.11” 2021-04-20 LTS Open JDK Runtime Environment 18.9 (build 11.0.11+9-LTS-194) Open JDK 64-Bit Server VM (build 11.0.11+9-LTS-194, mixed mode) We assume the readers of this tutorial have Java SDK version 11.0.11 installed on their system. In case you do not have Java SDK, download its current version from www.oracle.com/technetwork/java/javase/downloads/index.html and have it installed. Step 2: Set your Java Environment Set the environment variable JAVA_HOME to point to the base directory location where Java is installed on your machine. For example, Sr.No. Platform & Description 1 Windows Set JAVA_HOME to C:ProgramFilesjavajdk11.0.11 2 Linux Export JAVA_HOME = /usr/local/java-current Append the full path of Java compiler location to the System Path. Sr.No. Platform & Description 1 Windows Append the String “C:Program FilesJavajdk11.0.11bin” to the end of the system variable PATH. 2 Linux Export PATH = $PATH:$JAVA_HOME/bin/ Execute the command java -version from the command prompt as explained above. Step 3: Install Org.Json Library Download the latest version of org.json jar file from org.json @ MVNRepository. At the time of writing this tutorial, we have downloaded json-20211205, and copied it into C:>JSON folder. OS Archive name Windows json-20180813.jar Linux json-20180813.jar Mac json-20180813.jar Step 4: Set JSON_JAVA Environment Set the JSON_JAVA environment variable to point to the base directory location where org.json jar is stored on your machine. Let”s assuming we”ve stored json-20211205.jar in the JSON folder. Sr.No OS & Description 1 Windows Set the environment variable JSON_JAVA to C:JSON 2 Linux export JSON_JAVA = /usr/local/JSON 3 Mac export JSON_JAVA = /Library/JSON Step 5: Set CLASSPATH Variable Set the CLASSPATH environment variable to point to the JSON.simple jar location. Sr.No OS & Description 1 Windows Set the environment variable CLASSPATH to %CLASSPATH%;%JSON_JAVA%json-20211205.jar;.; 2 Linux export CLASSPATH = $CLASSPATH:$JSON_JAVA/json-20211205.jar:. 3 Mac export CLASSPATH = $CLASSPATH:$JSON_JAVA/json-20211205.jar:. Print Page Previous Next Advertisements ”;

Org.json Tutorial PDF Version Quick Guide Resources Job Search Discussion org.json or JSON-Java is a simple Java based toolkit for JSON. You can use org.json to encode or decode JSON data. Audience This tutorial is designed for Software Professionals who are willing to encode/decode JSON data in Java in simple and easy steps. This tutorial will give you an understanding of the org.json concepts and after completing this tutorial you will be at an intermediate level of expertise from where you can take yourself to a higher level of expertise. Prerequisites Before proceeding with this tutorial, you should have a basic understanding of Java, JSON, JavaScript, text editor, and execution of programs, etc. Print Page Previous Next Advertisements ”;

org.json – JSONArray ”; Previous Next A JSONArray is an ordered sequence of values. It provides methods to access values by index and to put values. Following types are supported − Boolean JSONArray JSONObject Number String JSONObject.NULL object Example import org.json.JSONArray; import org.json.JSONObject; public class JSONDemo { public static void main(String[] args) { JSONArray list = new JSONArray(); list.put(“foo”); list.put(new Integer(100)); list.put(new Double(1000.21)); list.put(new Boolean(true)); list.put(JSONObject.NULL); System.out.println(“JSONArray: “); System.out.println(list); } } Output JSONArray: [“foo”,100,1000.21,true,null] Print Page Previous Next Advertisements ”;

org.json – JSONML ”; Previous Next JSONML class provides static methods to convert a XML text into a JSONArray, and vice versa. Following methods are covered in the example. toJSONArray(String) − Converts a XML to JSONArray Object. toJSONObject(String) − Converts a XML to JSONObject Object. toString(JSONArray) − Gives a XML from a JSONArray Object. toString(JSONObject) − Gives a XML from a JSONObject Object. Example import org.json.JSONArray; import org.json.JSONML; import org.json.JSONObject; public class JSONDemo { public static void main(String[] args) { JSONArray list = new JSONArray(); list.put(“name”); list.put(“Robert”); System.out.println(“XML from a JSONArray: “); String xml = JSONML.toString(list); System.out.println(xml); System.out.println(“JSONArray from a XML: “); list = JSONML.toJSONArray(xml); System.out.println(list); System.out.println(“JSONObject from a XML: “); JSONObject object = JSONML.toJSONObject(xml); System.out.println(object); System.out.println(“XML from a JSONObject: “); xml = JSONML.toString(object); System.out.println(xml); } } Output XML from a JSONArray: <name>Robert</name> JSONArray from a XML: [“name”,”Robert”] JSONObject from a XML: {“childNodes”:[“Robert”],”tagName”:”name”} XML from a JSONObject: <name>Robert</name> Print Page Previous Next Advertisements ”;