JSONObject、JSONArray、xml的常用操作

JSONObject、JSONArray、xml的常用操作

1.JSONObject的操作

创建JSONObject

                JSONObject ob = new JSONObject();
		ob.put("busiCd", "111");
		ob.put("channel_cd", "1000000001");

解析JSONObject

TestModel model = new TestModel();// 声明一个对象对应json里面的key
		String info = "{'busiCd':'111','channel_cd':'1000000001'}";
		JSONObject sobj = JSONObject.fromObject(info);// 将info转换为JSONObject
		// 1.1、单个获得，用key得到对象值
		String result = sobj.getString("busiCd");
		String code = sobj.getString("channel_cd");
		// 1.2、转对象，直接将json对象转换为model
		model = (TestModel) JSONObject.toBean(sobj, TestModel.class);
		// 1.3、遍历对象，循环获得
		Iterator<String> it = sobj.keys();
		while (it.hasNext()) {
			String key = it.next();
			System.out.println(key + ":" + sobj.get(key));
		}

2.JSONArray的操作

创建JSONArray

List<TestModel> testModels = new ArrayList<TestModel>();//数据源
		JSONArray ja = new JSONArray();// 调用接口计算扣企业的钱和个人的钱
		for (int i = 0; i < testModels.size(); i++) {
			JSONObject ob = new JSONObject();
			ob.put("productCd", testModels.get(i).getBusiCd());
			ob.put("counts", testModels.get(i).getChannel_cd());
			ja.add(ob);
		}

解析JSONArray

List<TestModel> models = new ArrayList<TestModel>();// 声明一个对象对应json里面的key
		String info = "[{'busiCd':'111','channel_cd':'1000000001'}]";
		JSONArray array = JSONArray.fromObject(info);
		// 2.1 使用toList方法转数组
		models = JSONArray.toList(array, TestModel.class);
		// 2.2 使用toCollection转数组
		models = (List<TestModel>) JSONArray.toCollection(array,TestModel.class);
		// 2.3 遍历对象，循环获得
		Iterator<JSONObject> its = array.iterator();
		while (its.hasNext()) {
			JSONObject obj = its.next();
			Iterator<String> ite = obj.keys();
			while (ite.hasNext()) {
				String key = ite.next();
				System.out.println(key + ":" + obj.get(key));
			}
		}

3、xml操作

解析xml

// 3.1解析xml格式的数据
		String xmlStr = "<rsp><rsp_cd>0000</rsp_cd><tx_type>PY41</tx_type></rsp>";
		// 将xml格式的字符串转换成Document对象
		Document doc = DocumentHelper.parseText(xmlStr);
		// 获取根节点
		org.dom4j.Element root = doc.getRootElement();
		// 获取根节点下的所有元素
		List children = root.elements();
		// 循环所有子元素
		if (children != null && children.size() > 0) {
			for (int i = 0; i < children.size(); i++) {
				Element child = (Element) children.get(i);
				if ("rsp_cd".equals(child.getName())) {
					System.out.println("rsp_cd:" + child.getTextTrim());
				}
				if ("tx_type".equals(child.getName())) {
					System.out.println("tx_type:" + child.getTextTrim());
				}
			}
		}