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String from xml

 
Sachin Deshpande
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Posts: 25
posted 19 years ago
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Hello All!
I have an xml doc which I am parsing using SAX. The xml is like :
<root>
<header>xxxxxxx</header>
<body>
<some-tag>
<some-other-tag attrib1="yyyy">
some data
</some-other-tag>
</some-tag>
</body>
</root>

What I need is the contents of the 'body' tag as a string:

<body>
<some-tag>
<some-other-tag attrib1="yyyy">
some data
</some-other-tag>
</some-tag>
</body>

I have the org.w3c.dom.Element object of body. but what call of Element will give me the String within?
 
Madhav Lakkapragada
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Posts: 5040
posted 19 years ago
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Originally posted by Sachin Deshpande:
What I need is the contents of the 'body' tag as a string:

<body>
<some-tag>
<some-other-tag attrib1="yyyy">
some data
</some-other-tag>
</some-tag>
</body>

I have the org.w3c.dom.Element object of body. but what call of Element will give me the String within?




By saying 'contents' of the Body tag, you understand that you are asking for the text value. So, if I am not mistaken you want the string 'some data ' to be returned in this case. Is that what you are looking for ?

- m

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Sachin Deshpande
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Posts: 25
posted 19 years ago
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no. i require everything within the 'body' tag; the tags, the values, the attributes, everything, as a string (basically a substring of the entire xml). How would one go about it?
 
Lasse Koskela
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posted 19 years ago
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There's no easy way of doing that but there might be a way if you're not too picky about character-to-character accuracy.

Since SAX is an event-based API, you should implement your handler using the following logic:

1) when you encounter the start element for <body>, you switch into "echo mode" and only come out of that mode once the SAX parser hands you a matching closing tag, </body>.

2) when inside this "echo mode", your SAX handler should process the events as follows:
2.1) startElement(...) should reconstruct the starting tag from the given parameters and append that to a StringBuffer somewhere
2.2) characters(...) should append the given characters as-is into the StringBuffer
2.3) endElement(...) should reconstruct the ending tag and append that to the StringBuffer
2.4) ...and so forth for the remaining methods of the SAX handler interface

Author of Test Driven (2007) and Effective Unit Testing (2013) [Blog] [HowToAskQuestionsOnJavaRanch]

 
pranav pranav
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posted 19 years ago
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Hi
Did you get the answer?
I am looking for the same thing...
 
Amit G Piplani
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posted 19 years ago
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Element.getFirstChild().getNodeValue() will give you the element's value

SCJP,SCWCD,SCBCD,SCDJWS1.4, SCDJWS1.5

 
RAN BAS
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posted 19 years ago
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There is a util class in Axis package which provides way to convert a element to string.
org.apache.axis.utils.XMLUtils.ElementToString((Element)doc.getElementsByTagName("body").item(0));
Otherwise you have to achieve it manually by either your own logic in SAX parser or DOM parser.

regards,
Ranjan
 
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