解析xml，判断是否含有某字符串

public class MCommonUtil {
static boolean result = false;
/**
* 获取xml结果
* @param protocolXML-xml字符串
* @param findtxt-要查询的字符串
* @return
*/
public static boolean parse(String protocolXML,String findtxt){
boolean results = false;
try{
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
Document doc = builder.parse(new InputSource(new StringReader(protocolXML)));
Element root = doc.getDocumentElement();
NodeList nodes = root.getChildNodes();
results = foreach(nodes,findtxt);
result = false;
}catch(Exception e){
e.printStackTrace();
}
return results;
}
/**
* 递归处理遍历xml
* @param nodelist
* @param findtxt
* @return
*/
public static boolean foreach(NodeList nodelist,String findtxt){
if(nodelist!=null){
for(int i=0;i<nodelist.getLength();i++){
Node node = nodelist.item(i);
if(node.getFirstChild()!=null){
if(findtxt.equals(node.getFirstChild().getNodeValue())){
result = true;
break;
}
}
if(result == false){
foreach(node.getChildNodes(),findtxt);
}
}
}
return result;
}
}