AJAX实践之与服务器通信

/**/ /* Note how the Java implementation of

the W3C DOM has the same methods

* as the JavaScript implementation, such as getElementsByTagName and

* getNodeValue.

*/

NodeList selectedPetTypes = xmlDoc.getElementsByTagName( " type " );

String type = null ;

String responseText = " Selected Pets: " ;

for ( int i = 0 ; i < selectedPetTypes.getLength(); i ++ ) {

type = selectedPetTypes.item(i).getFirstChild().getNodeValue();

responseText = responseText + " " + type;

}

response.setContentType( " text/xml " );

response.getWriter().print(responseText);

}

private String readXMLFromRequestBody(HttpServletRequest request) {

StringBuffer xml = new StringBuffer();

String line = null ;

try {

BufferedReader reader = request.getReader();

while ((line = reader.readLine()) != null ) {

xml.append(line);

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