Package groovy.json

# Class JsonOutput

java.lang.Object
groovy.json.JsonOutput

    public class JsonOutput
    extends java.lang.Object

Class responsible for the actual String serialization of the possible values of a JSON structure. This class can also be used as a category, so as to add `toJson()` methods to various types.

This class does not provide the ability to customize the resulting output. A `JsonGenerator` can be used if the ability to alter the resulting output is required.

Since:
  1.8.0
See Also:
  `JsonGenerator`

- ## Nested Class Summary

  Nested Classes
  Modifier and Type | Class | Description
  --- | --- | ---
  `static class` | `JsonOutput.JsonUnescaped` | Represents unescaped JSON

- ## Constructor Summary

  Constructors
  Constructor | Description
  --- | ---
  `JsonOutput()` |

- ## Method Summary

  Modifier and Type | Method | Description
  --- | --- | ---
  `static java.lang.String` | `prettyPrint​(java.lang.String jsonPayload)` | Pretty print a JSON payload.
  `static java.lang.String` | `toJson​(Closure closure)` |
  `static java.lang.String` | `toJson​(Expando expando)` |
  `static java.lang.String` | `toJson​(java.lang.Boolean bool)` |
  `static java.lang.String` | `toJson​(java.lang.Character c)` |
  `static java.lang.String` | `toJson​(java.lang.Number n)` |
  `static java.lang.String` | `toJson​(java.lang.Object object)` |
  `static java.lang.String` | `toJson​(java.lang.String s)` |
  `static java.lang.String` | `toJson​(java.net.URL url)` |
  `static java.lang.String` | `toJson​(java.util.Calendar cal)` | Format a calendar instance that is parseable from JavaScript, according to ISO-8601.
  `static java.lang.String` | `toJson​(java.util.Date date)` | Format a date that is parseable from JavaScript, according to ISO-8601.
  `static java.lang.String` | `toJson​(java.util.Map m)` |
  `static java.lang.String` | `toJson​(java.util.UUID uuid)` |
  `static JsonOutput.JsonUnescaped` | `unescaped​(java.lang.CharSequence text)` | Obtains JSON unescaped text for the given text

  ### Methods inherited from class java.lang.Object

  `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- ## Constructor Details

  - ### JsonOutput

    public JsonOutput()

- ## Method Details

  - ### toJson

    public static java.lang.String toJson​(java.lang.Boolean bool)
    Returns:
      "true" or "false" for a boolean value

  - ### toJson

    public static java.lang.String toJson​(java.lang.Number n)
    Returns:
      a string representation for a number
    Throws:
      `JsonException` - if the number is infinite or not a number.

  - ### toJson

    public static java.lang.String toJson​(java.lang.Character c)
    Returns:
      a JSON string representation of the character

  - ### toJson

    public static java.lang.String toJson​(java.lang.String s)
    Returns:
      a properly encoded string with escape sequences

  - ### toJson

    public static java.lang.String toJson​(java.util.Date date)
    Format a date that is parseable from JavaScript, according to ISO-8601.
    Parameters:
      `date` - the date to format to a JSON string
    Returns:
      a formatted date in the form of a string

  - ### toJson

    public static java.lang.String toJson​(java.util.Calendar cal)
    Format a calendar instance that is parseable from JavaScript, according to ISO-8601.
    Parameters:
      `cal` - the calendar to format to a JSON string
    Returns:
      a formatted date in the form of a string

  - ### toJson

    public static java.lang.String toJson​(java.util.UUID uuid)
    Returns:
      the string representation of an uuid

  - ### toJson

    public static java.lang.String toJson​(java.net.URL url)
    Returns:
      the string representation of the URL

  - ### toJson

    public static java.lang.String toJson​(Closure closure)
    Returns:
      an object representation of a closure

  - ### toJson

    public static java.lang.String toJson​(Expando expando)
    Returns:
      an object representation of an Expando

  - ### toJson

    public static java.lang.String toJson​(java.lang.Object object)
    Returns:
      "null" for a null value, or a JSON array representation for a collection, array, iterator or enumeration, or representation for other object.

  - ### toJson

    public static java.lang.String toJson​(java.util.Map m)
    Returns:
      a JSON object representation for a map

  - ### prettyPrint

    public static java.lang.String prettyPrint​(java.lang.String jsonPayload)
    Pretty print a JSON payload.
    Parameters:
      `jsonPayload` -
    Returns:
      a pretty representation of JSON payload.

  - ### unescaped

    public static JsonOutput.JsonUnescaped unescaped​(java.lang.CharSequence text)
    Obtains JSON unescaped text for the given text
    Parameters:
      `text` - The text
    Returns:
      The unescaped text