提交到后台的应该是key-value格式,你可以用firebug看看dwz封装传的参数名称,在springmvc中方法签名中接收该字段然后用json-lib包
JSONObject jsonObject = JSONObject.fromObject(where);
JSONArray rules = jsonObject.getJSONArray("rules");
for (Object obj : rules) {
JSONObject rule = (JSONObject) obj;
String field = rule.getString("field");
String value=rule.getString("value");
}