【明哥报错簿】之json转换报错---net.sf.ezmorph.bean.MorphDynaBean cannot be cast to XXXDO

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简单的json和bean转换直接用：

public static void main(String[] args) {
String s = "{'request': [{'orderCode': 'HOJY20170226000074-O-0','cancelReason': '没有原因'},{'orderCode': 'HOJY20170226000074-O-1','cancelReason': '有原因'}]}";
JSONObject jb = JSONObject.fromObject(s);
JSONArray ja = jb.getJSONArray("request");
String orderCode = ja.getJSONObject(1).getString("orderCode");
String cancelReason = ja.getJSONObject(1).getString("cancelReason");
System.out.println(cancelReason+"-----"+orderCode);
}

输出结果：有原因-----HOJY20170226000074-O-1

--------------------------------------复杂模式，对象里面有list，比如ReturnOrderDO里面有属性A,B，属性B里面的属性是List<C>,这样直接转就不行报错了，需要用classmap------------------------------------------------------

public static void main(String[] args) {
String s = "{'request': [{'returnOrder': {'returnOrderCode': 'RK131','warehouseCode': 'SunEee01'},'orderLines': {'orderLine':[{'ownerCode': 'ownerCode01','itemCode':'itemCode01','planQty': 100},{'ownerCode': 'ownerCode02','itemCode':'itemCode02','planQty': 100}]}}]}"; JSONObject jb = JSONObject.fromObject(s);
JSONArray ja = jb.getJSONArray("request");
List<ReturnOrderDO> list = JSONArray.toList(ja,ReturnOrderDO.class); for(ReturnOrderDO one:list){
Map<String, Class> classMap = new HashMap<String, Class>();
classMap.put("orderLine", OrderLine.class); ReturnOrderDO ss = (ReturnOrderDO) JSONObject.toBean(JSONObject.fromObject(one),ReturnOrderDO.class,classMap);
System.out.println(ss.getOrderLines().getOrderLine().get(0).getOwnerCode());
}}