java - regular expression to find special character & between xml tags -

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a xml string generated model pass me, may contains special character such & in text of xml tag.
e.g.

<entry>  <key>state</key>  <value xsi:type="xs:string">adddress  3 & addr 4, 12345, hong kong</value> </entry>

when build xml string have invalid character error, need escape special character &.
want use regex find & between <value></value> tag , replace &amp;
have tried fail on regex.

can give me clue on regex?

besides use java 1.6

you can use lookahead:

replace

&(?!\w*;)(?=[^<]*</value>)

by

&amp;

this works specifying 2 lookaheads. first lookahead (?!\w*;) prevents valid html escape sequences being matched. second lookahead (?=[^<]*</value>) specifies </value> tag must follow text (after amount of non-xml-tag content).

try here.


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