Jackson解析json文件

1、ObjectMapper mapper=new ObjectMapper();
2、JsonNode node = mapper.readTree(areaData);

JsonNode lastnode=node.get("result").get("1584548").get("result").get(0).get("shops");

List<WetOrFireCheckVo> list = new ArrayList<WetOrFireCheckVo>();
		try {
			String areaData =  IOUtils.toString(wetOrFireJson.getInputStream(), Charset.forName("UTF-8"));
			ObjectMapper mapper=new ObjectMapper();
			JsonNode node = mapper.readTree(areaData);
			JsonNode wetOrFile = null;
			if (Objects.equal(1, wetOrFire)) {
				wetOrFile = node.get("wetCheck");	
			}
			if (Objects.equal(2, wetOrFire)) {
				wetOrFile = node.get("fireCheck");	
			}
			if (wetOrFile != null && wetOrFile.size() > 0) {
				WetOrFireCheckVo wetOrFireCheckVo = null;
				for (int i = 0; i < wetOrFile.size(); i++) {
					JsonNode jsonNode = wetOrFile.get(i);
					wetOrFireCheckVo.setDescribeInfo(jsonNode.get("describeInfo").asText());
					wetOrFireCheckVo.setDetail(jsonNode.get("detail").asText());
					wetOrFireCheckVo.setHappenTime(jsonNode.get("happenTime").asText());
					wetOrFireCheckVo.setId(jsonNode.get("id").asInt());
					wetOrFireCheckVo.setModelName(jsonNode.get("modelName").asText());
					wetOrFireCheckVo.setModelPath(jsonNode.get("modelPath").asText());
					list.add(wetOrFireCheckVo);
				}
			}
   } catch (IOException e) {
			e.printStackTrace();
		}