[英]InstantiationException using Dozer
使用Dozer 5.4.0进行映射,并从DozerConverter抽象类运行到InstantiationException。 这是我的课程,大多数情况下...顺便说一句-尝试了List和Map以及HashMap和ArrayList-没什么不同,也没有失望!
public class DozerJAXBElementConverter extends DozerConverter<ArrayList<JAXBElement<String>>, HashMap<String, String>> {
public DozerJAXBElementConverter(Class<ArrayList<JAXBElement<String>>> prototypeA, Class<HashMap<String, String>> prototypeB) {
super(prototypeA, prototypeB);
}
@Override
public ArrayList<JAXBElement<String>> convertFrom(HashMap<String, String> sourceStringMap, ArrayList<JAXBElement<String>> destJaxbList) {
//Nothign to convert?
if(sourceStringMap == null || sourceStringMap.isEmpty()) return null;
//Instantiate list if not already
if(destJaxbList == null) destJaxbList = new ArrayList<JAXBElement<String>>();
//convert
Iterator<Entry<String, String>> setIterator = sourceStringMap.entrySet().iterator();
while(setIterator.hasNext()){
Entry<String,String> e = setIterator.next();
if(e != null){
destJaxbList.add(new JAXBElement<String>(new QName(e.getKey(), DozerJAXBElementConverter.NAMESPACE), String.class, e.getValue()));
}
}
return destJaxbList;
}
@Override
public HashMap<String, String> convertTo(ArrayList<JAXBElement<String>> sourceJaxbList, HashMap<String, String> destStringMap) {
//Nothing to convert?
if(sourceJaxbList == null || sourceJaxbList.isEmpty()) return null;
//Instantiate list if not already
if(destStringMap == null) destStringMap = new HashMap<String,String>();
//convert
Iterator<JAXBElement<String>> i = sourceJaxbList.iterator();
while(i.hasNext()){
JAXBElement<String> element = i.next();
if(element != null){
destStringMap.put(element.getName().toString(), element.getValue());
}
}
return destStringMap;
}
}}
我实现了适当的方法,所有的编译都得到了以下traceat运行时-感谢您的帮助:
org.dozer.MappingException: java.lang.InstantiationException: gov.dhs.cbp.ctpat.pip.translate.DozerJAXBElementConverter
at org.dozer.util.MappingUtils.throwMappingException(MappingUtils.java:82) ~[dozer-5.4.0.jar:?]
at org.dozer.util.ReflectionUtils.newInstance(ReflectionUtils.java:360) ~[dozer-5.4.0.jar:?]
at org.dozer.MappingProcessor.mapUsingCustomConverter(MappingProcessor.java:971) ~[dozer-5.4.0.jar:?]
at org.dozer.MappingProcessor.mapFromFieldMap(MappingProcessor.java:345) ~[dozer-5.4.0.jar:?]
at org.dozer.MappingProcessor.mapField(MappingProcessor.java:288) [dozer-5.4.0.jar:?]
at org.dozer.MappingProcessor.map(MappingProcessor.java:248) [dozer-5.4.0.jar:?]
at org.dozer.MappingProcessor.map(MappingProcessor.java:197) [dozer-5.4.0.jar:?]
at org.dozer.MappingProcessor.mapCustomObject(MappingProcessor.java:495) [dozer-5.4.0.jar:?]
at org.dozer.MappingProcessor.mapOrRecurseObject(MappingProcessor.java:446) [dozer-5.4.0.jar:?]
at org.dozer.MappingProcessor.mapFromFieldMap(MappingProcessor.java:342) [dozer-5.4.0.jar:?]
at org.dozer.MappingProcessor.mapField(MappingProcessor.java:288) [dozer-5.4.0.jar:?]
at org.dozer.MappingProcessor.map(MappingProcessor.java:248) [dozer-5.4.0.jar:?]
at org.dozer.MappingProcessor.map(MappingProcessor.java:197) [dozer-5.4.0.jar:?]
at org.dozer.MappingProcessor.map(MappingProcessor.java:187) [dozer-5.4.0.jar:?]
at org.dozer.MappingProcessor.map(MappingProcessor.java:124) [dozer-5.4.0.jar:?]
at org.dozer.MappingProcessor.map(MappingProcessor.java:119) [dozer-5.4.0.jar:?]
at org.dozer.DozerBeanMapper.map(DozerBeanMapper.java:120) [dozer-5.4.0.jar:?]
我简化为:
public class DozerJAXBElementConverter extends DozerConverter<List, Map> {
public DozerJAXBElementConverter(Class<List> prototypeA, Class<Map> prototypeB) {
super(prototypeA, prototypeB);
}
public DozerJAXBElementConverter(){
super(List.class, Map.class);
}
使它起作用-不知道为什么原始的impl不起作用...
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