org.json

Class XML

java.lang.Object

org.json.XML

public class XML
extends java.lang.Object

This provides static methods to convert an XML text into a JSONObject, and to covert a JSONObject into an XML text.

Version:

2016-08-10

Author:

JSON.org

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.Character	AMP The Character '&'.
static java.lang.Character	APOS The Character '''.
static java.lang.Character	BANG The Character '!'.
static java.lang.Character	EQ The Character '='.
static java.lang.Character	GT The Character '>'.
static java.lang.Character	LT The Character '<'.
static java.lang.Character	QUEST The Character '?'.
static java.lang.Character	QUOT The Character '"'.
static java.lang.Character	SLASH The Character '/'.

Constructor Summary

Constructors

Constructor and Description
XML()

Method Summary

Methods

Modifier and Type	Method and Description
static java.lang.String	escape(java.lang.String string) Replace special characters with XML escapes:
static void	noSpace(java.lang.String string) Throw an exception if the string contains whitespace.
static java.lang.Object	stringToValue(java.lang.String string) This method is the same as JSONObject.stringToValue(String) except that this also tries to unescape String values.
static JSONObject	toJSONObject(java.lang.String string) Convert a well-formed (but not necessarily valid) XML string into a JSONObject.
static JSONObject	toJSONObject(java.lang.String string, boolean keepStrings) Convert a well-formed (but not necessarily valid) XML string into a JSONObject.
static java.lang.String	toString(java.lang.Object object) Convert a JSONObject into a well-formed, element-normal XML string.
static java.lang.String	toString(java.lang.Object object, java.lang.String tagName) Convert a JSONObject into a well-formed, element-normal XML string.
static java.lang.String	unescape(java.lang.String string) Removes XML escapes from the string.

Methods inherited from class java.lang.Object

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

Field Detail

AMP

public static final java.lang.Character AMP

The Character '&'.

APOS

public static final java.lang.Character APOS

The Character '''.

BANG

public static final java.lang.Character BANG

The Character '!'.

EQ

public static final java.lang.Character EQ

The Character '='.

GT

public static final java.lang.Character GT

The Character '>'.

LT

public static final java.lang.Character LT

The Character '<'.

QUEST

public static final java.lang.Character QUEST

The Character '?'.

QUOT

public static final java.lang.Character QUOT

The Character '"'.

SLASH

public static final java.lang.Character SLASH

The Character '/'.

Constructor Detail

XML

public XML()

Method Detail

escape

public static java.lang.String escape(java.lang.String string)

Replace special characters with XML escapes:

 & (ampersand) is replaced by &
 < (less than) is replaced by &lt;
 > (greater than) is replaced by &gt;
 " (double quote) is replaced by &quot;
 ' (single quote / apostrophe) is replaced by &apos;
 

Parameters:

string - The string to be escaped.

Returns:

The escaped string.

unescape

public static java.lang.String unescape(java.lang.String string)

Removes XML escapes from the string.

Parameters:

string - string to remove escapes from

Returns:

string with converted entities

noSpace

public static void noSpace(java.lang.String string)
                    throws JSONException

Throw an exception if the string contains whitespace. Whitespace is not allowed in tagNames and attributes.

Parameters:

string - A string.

Throws:

JSONException - Thrown if the string contains whitespace or is empty.

stringToValue

public static java.lang.Object stringToValue(java.lang.String string)

This method is the same as JSONObject.stringToValue(String) except that this also tries to unescape String values.

Parameters:

string - String to convert

Returns:

JSON value of this string or the string

toJSONObject

public static JSONObject toJSONObject(java.lang.String string)
                               throws JSONException

Convert a well-formed (but not necessarily valid) XML string into a JSONObject. Some information may be lost in this transformation because JSON is a data format and XML is a document format. XML uses elements, attributes, and content text, while JSON uses unordered collections of name/value pairs and arrays of values. JSON does not does not like to distinguish between elements and attributes. Sequences of similar elements are represented as JSONArrays. Content text may be placed in a "content" member. Comments, prologs, DTDs, and <[ [ ]]> are ignored.

Parameters:

string - The source string.

Returns:

A JSONObject containing the structured data from the XML string.

Throws:

JSONException - Thrown if there is an errors while parsing the string

toJSONObject

public static JSONObject toJSONObject(java.lang.String string,
                      boolean keepStrings)
                               throws JSONException

Convert a well-formed (but not necessarily valid) XML string into a JSONObject. Some information may be lost in this transformation because JSON is a data format and XML is a document format. XML uses elements, attributes, and content text, while JSON uses unordered collections of name/value pairs and arrays of values. JSON does not does not like to distinguish between elements and attributes. Sequences of similar elements are represented as JSONArrays. Content text may be placed in a "content" member. Comments, prologs, DTDs, and <[ [ ]]> are ignored. All values are converted as strings, for 1, 01, 29.0 will not be coerced to numbers but will instead be the exact value as seen in the XML document.

Parameters:

string - The source string.

keepStrings - If true, then values will not be coerced into boolean or numeric values and will instead be left as strings

Returns:

A JSONObject containing the structured data from the XML string.

Throws:

JSONException - Thrown if there is an errors while parsing the string

toString

public static java.lang.String toString(java.lang.Object object)
                                 throws JSONException

Convert a JSONObject into a well-formed, element-normal XML string.

Parameters:

object - A JSONObject.

Returns:

A string.

Throws:

JSONException - Thrown if there is an error parsing the string

toString

public static java.lang.String toString(java.lang.Object object,
                        java.lang.String tagName)
                                 throws JSONException

Convert a JSONObject into a well-formed, element-normal XML string.

Parameters:

object - A JSONObject.

tagName - The optional name of the enclosing tag.

Returns:

A string.

Throws:

JSONException - Thrown if there is an error parsing the string