使用Jackson解析Json数组

今天药忘吃喽~ 2022-05-27 01:13 242阅读 0赞

> > ##  笔记记录一下使用jackson解析Json数组 ##

> 使用jackson-all-1.8.5.jar这个jar包对于诸如下面的json数组进行解析：

\{"avgSendTime":2400.0,"caution":"","cityId":999999,"ctime":1523154859,"daySeq":"13","deliveryTime":0,"detail":"\[\{\\"app\_food\_code\\":\\"锅包肉\\",\\"box\_num\\":1,\\"box\_price\\":0.01,\\"cart\_id\\":0,\\"food\_discount\\":1,\\"food\_name\\":\\"锅包肉\\",\\"food\_property\\":\\"特辣\\",\\"price\\":0.01,\\"quantity\\":1,\\"sku\_id\\":\\"\\",\\"spec\\":\\"大份\\",\\"unit\\":\\"份\\"\}\]","dinnersNumber":0,"ePoiId":"123","extras":"\[\{\}\]","hasInvoiced":0,"invoiceTitle":"","isFavorites":false,"isPoiFirstOrder":true,"isThirdShipping":0,"latitude":29.774491,"logisticsCode":"0000","longitude":95.369272,"orderId":9660995202,"orderIdView":28982501435874421,"originalPrice":0.03,"payType":1,"poiAddress":"南极洲04号站","poiFirstOrder":true,"poiId":2898250,"poiName":"t\_jFGhznyZ","poiPhone":"4009208801","poiReceiveDetail":"\{\\"actOrderChargeByMt\\":\[\{\\"comment\\":\\"活动款\\",\\"feeTypeDesc\\":\\"活动款\\",\\"feeTypeId\\":10019,\\"moneyCent\\":0\}\],\\"actOrderChargeByPoi\\":\[\],\\"foodShareFeeChargeByPoi\\":0,\\"logisticsFee\\":1,\\"onlinePayment\\":3,\\"wmPoiReceiveCent\\":3\}","recipientAddress":"色金拉 (大厦11)@\#西藏自治区林芝市墨脱县色金拉","recipientName":"王五(先生)","recipientPhone":"18800467403","shipperPhone":"","shippingFee":0.01,"status":4,"taxpayerId":"","total":0.03,"utime":1523154874\}

如上面的样例：

ObjectMapper mapper = new ObjectMapper();
            String json = " {\"app_food_code\":\"锅包肉\",\"box_num\":1,\"box_price\":0.01,\"cart_id\":0,\"food_discount\":1,\"food_name\":\"锅包肉\",\"food_property\":\"特辣\",\"price\":0.01,\"quantity\":1,\"sku_id\":\"\",\"spec\":\"大份\",\"unit\":\"份\"} ";
            String json1 = "{\"actOrderChargeByMt\":[{\"comment\":\"活动款\",\"feeTypeDesc\":\"活动款\",\"feeTypeId\":10019,\"moneyCent\":0}],\"actOrderChargeByPoi\":[],\"foodShareFeeChargeByPoi\":0,\"logisticsFee\":1,\"onlinePayment\":3,\"wmPoiReceiveCent\":3}";
            System.out.println(json);
            Food food = mapper.readValue(json,Food.class);
            Order order = mapper.readValue(json1,Order.class);
            System.out.println(food.getApp_food_code());
            System.out.println(food.getBox_num());
            System.out.println(food.getBox_price());
            String strJson = mapper.writeValueAsString(order);
            System.out.println(strJson);

运行程序的结果 如下图：

![20180501150049855][]

解析的字符串中含有的斜线是进行转义的。

[20180501150049855]: /images/20220527/aaecb35400164461ac790af533969bd9.png