java从Object类型转换为double类型:
Map<String,Object> map = new HashMap<String,Object>(); map.put("order",1.245); BigDecimal order = (BigDecimal)map.get("order"); double d = (order==null?0:order.doubleValue());
转载于:https://www.cnblogs.com/shuilangyizu/p/7744522.html