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Mapping JSON Values to XML Elements
What is the standard to map JSON values to XML elements?
✍: FYIcenter.com
There seems to be no industry standard on how to map JSON values to XML elements.
But there are some commonly used conventions:
1. Automatically adding a root element with "root" or "document" as the element tag. For example:
JSON: { "a": 1, "b": 2 } XML: <root> <a>1</a> <b>2</b> </root>
2. JSON String and Boolean values are converted to XML text content as is. For example:
JSON: { "a": "20.20", "b": true } XML: <root> <a>20.20</a> <b>true</b> </root>
3. JSON Number values are normalized first and then converted to XML text contents. For example:
JSON: { "a": 20.0200, "b": 0.314159e01 } XML: <root> <a>20.02</a> <b>3.14159</b> </root>
4. JSON Null values are converted to empty XML text contents. For example:
JSON: { "a": null } XML: <root> <a/> </root>
5. JSON Array values are converted to a sequence of XML sub elements with "element" at the tag. For example:
JSON: [ 2, 4, 8 ] XML: <root> <element>2</element> <element>4</element> <element>8</element> </root>
6. JSON Object values are converted to a sequence of XML sub elements with their property names as element tags. Any illegal characters in XML tag names are placed with "_". XML tag names will be prefixed with "_" if they start with numeric characters. For example:
JSON: { "a": null, "x+y": "X plus Y", "x-y": "X minus Y", "007": "Double O Seven", "fyi.pi": 0.314159e01, "fyi:pi": 0.314159e01, "fyi_pi": "0.314159e01", "fyi>pi": "31.4159e-1", "error msg": "Something wrong!" } XML: <root> <a/> <x_y>X plus Y</x_y> <x-y>X minus Y</x-y> <_007>Double O Seven</_007> <fyi.pi>3.14159</fyi.pi> <fyi_pi>3.14159</fyi_pi> <fyi_pi>0.314159e01</fyi_pi> <fyi_pi>31.4159e-1</fyi_pi> <error_msg>Something wrong!</error_msg> </root>
2017-08-29, 640👍, 0💬
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