DOM4J format Escape character problem

Source: Internet
Author: User
Tags cdata xml cdata

1. XML CDATA Parts that have to be said

All text in an XML document will be parsed by the parser.

Only text within a CDATA part is ignored by the parser.

An illegal XML character must be replaced with the corresponding entity.

If you use a character similar to "<" in an XML document, the parser will get an error because the parser will think that this is the beginning of a new element.

&lt; < Less than sign
&gt; > Greater-than sign
&amp; & And
&apos; ' Single quotation mark
&quot; " Double quotes

The entity must begin with the symbol "&" with the symbol ";" End.
Note: Only the "<" and "&" characters are strictly prohibited for XML. The rest is legal, and in order to reduce errors, using entities is a good habit.

All content within CDATA is ignored by the parser.

If the text contains a lot of "<" characters and "&" characters-just like the program code, it's best to put them all in a CDATA part.

A CDATA part with "<! The [cdata["Mark begins with the"]]> "tag, ending with:

CDATA Considerations:
CDATA Parts can no longer contain CDATA parts (cannot be nested). If the CDATA part contains the character "]]>" or "<! [cdata[], there will be very likely to go wrong oh.

Also note that there are no spaces or line breaks between the string "]]>".

2, dom4j format escape character problem


<?xml version="1.0" encoding="UTF-8"?>

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