之前使用jaxb来解析webservice返回的xml，由于xml的格式总是会出现意想不到的变化，导致xml格式通过不了jaxb解析而报错，现已放弃jaxb解析，记录下下来自己是怎么修改的， 首先用于转换接收到的xml格式的 串的工具类，在接下来的通信： public class XmlTranslator {
@SuppressWarnings("unchecked") public static List<Map<Object,Object>> readXml(String xmlStr) throws Exception{ Document doc = null; List<Map<Object, Object>> list = null; try { list = new ArrayList<Map<Object, Object>>(); doc = DocumentHelper.parseText(xmlStr); // 将字符串转为XML Element rootElement = doc.getRootElement(); System.out.println(rootElement.toString()); Iterator<Element> ite = rootElement.elements().iterator(); while (ite.hasNext()) { Element element = (Element) ite.next(); Map<Object, Object> map = traversingTree(element); if (map.size() == 0) continue; list.add(map); } } catch (Exception e) { e.printStackTrace(); } return list; } public static Map<Object, Object> traversingTree(Element element) { Map<Object, Object> map = new ConcurrentHashMap<Object, Object>(); for (int i = 0, size = element.nodeCount(); i < size; i++) { Node node = element.node(i); if (node instanceof Element) { traversingTree((Element) node); map.put(node.getName(), node.getText()); } } return map; }} 接下来使用上面工具类开始解析过程
public abstract class Xml2Object { private Class clazz;
@SuppressWarnings({ "unchecked", "rawtypes" }) public Xml2Object() { Type genType = getClass().getGenericSuperclass(); Type[] params = ((ParameterizedType) genType).getActualTypeArguments(); clazz = (Class) params[0]; } public List<T> getObjectCollection(String xmlStr) { List<Map<Object, Object>> list = null; try { list = XmlTranslator.readXml(xmlStr); } catch (Exception e1) { e1.printStackTrace(); } if (Assert.isEmpty(list)) return null; List<T> collection = new ArrayList<T>(); try { T entity = null; Field[] fields = clazz.getDeclaredFields(); for (Map<Object, Object> map : list) { entity = clazz.newInstance(); for (Field field : fields) { String fieldName = field.getName(); String setMethodName = "set" + fieldName.substring(0, 1).toUpperCase() + fieldName.substring(1); XmlElement element = field.getAnnotation(XmlElement.class); String elementName = element.name(); Object elementValue = null; Class<?> type = field.getType(); Method method = clazz.getMethod(setMethodName, type); if (!"##default".equals(elementName)) { elementValue = map.get(elementName); } else { elementValue = map.get(fieldName); } method.invoke(entity, type.cast(elementValue)); } collection.add(entity); } } catch (InstantiationException e) { e.printStackTrace(); } catch (IllegalAccessException e) { e.printStackTrace(); } catch (SecurityException e) { e.printStackTrace(); } catch (NoSuchMethodException e) { e.printStackTrace(); } catch (IllegalArgumentException e) { e.printStackTrace(); } catch (InvocationTargetException e) { e.printStackTrace(); } catch (Exception e) { e.printStackTrace(); } return collection; }} 通过继承上面的抽象类完成对具体类 public class XML2User extends Xml2Object{
}
User: @XmlAccessorType(XmlAccessType.FIELD) @XmlRootElement(name = “USER”) public final class User{ @XmlElement(name = “name”, required = true) protected String name; @XmlElement(name = “department”, required = true) protected String department; @XmlElement(name = “cert”, required = true) protected String cert;
//get、set省略} 测试 @Test public void main(){ String xml=”something”; Xml2Object visitorUtil = new Xml2User(); List infos = visitorUtil.getObjectCollection(xml); }
