android中JSON解析代码实现和开源框架简述

<pre name="code" class="java">1.JSON为对象

<pre name="code" class="html">{"name":"江疏影","age":3,"sex":"nv"}

//如果是JSON对象,那么创建JSONObject的对象
			JSONObject object01 = new JSONObject(data);
			//通过键,得到值
			int age = object01.getInt("age");
			String name = object01.getString("name");
			String sex = object01.getString("sex");
			//组装字符串
			String result = "姓名:"+name+"\n性别:"+sex+"\n年龄:"+age;
			//显示数据在TextView上面
			tv.setText(result);

2.JSON为数组

<pre name="code" class="html"><pre name="code" class="html">[
{"name":"江疏影","age":3,"sex":"nv"},
{"name":"江疏影","age":2,"sex":"renyao"}
]

			//定义StringBuffer
			StringBuffer sb = new StringBuffer();
			//如果当前的JSON数据是一个数组,那么创建JSONArray的对象
			JSONArray array = new JSONArray(data);
			//数组---遍历(循环)
			//数组的长度 array.length();
			//数组里面每一个元素array.getJSONObject(i);
			for (int i = 0; i < array.length(); i++) {
				//得到数组的每一个元素
				JSONObject object = array.getJSONObject(i);
				//得到数据
				String name = object.getString("name");
				String sex = object.getString("sex");
				int age = object.getInt("age");
				//组装字符串
				sb.append("姓名:").append(name).append("\n");
				sb.append("性别:").append(sex).append("\n");
				sb.append("年龄:").append(age).append("\n");
				sb.append("-------").append("\n");
			}
			//得到数据
			tv.setText(sb.toString());

3.JSON为综合类型

创建MyBean

<pre name="code" class="html">public class MyBean {

	private String date;
	private String temperature;
	private String weather;
	private String weather_id;
	private String week;
	private String wind;

	public String getDate() {
		return date;
	}

	public void setDate(String date) {
		this.date = date;
	}

	public String getTemperature() {
		return temperature;
	}

	public void setTemperature(String temperature) {
		this.temperature = temperature;
	}

	public String getWeather() {
		return weather;
	}

	public void setWeather(String weather) {
		this.weather = weather;
	}

	public String getWeather_id() {
		return weather_id;
	}

	public void setWeather_id(String weather_id) {
		this.weather_id = weather_id;
	}

	public String getWeek() {
		return week;
	}

	public void setWeek(String week) {
		this.week = week;
	}

	public String getWind() {
		return wind;
	}

	public void setWind(String wind) {
		this.wind = wind;
	}

	public MyBean(String date, String temperature, String weather,
			String weather_id, String week, String wind) {
		super();
		this.date = date;
		this.temperature = temperature;
		this.weather = weather;
		this.weather_id = weather_id;
		this.week = week;
		this.wind = wind;
	}

	@Override
	public String toString() {
		return "MyBean [date=" + date + ", temperature=" + temperature
				+ ", weather=" + weather + ", weather_id=" + weather_id
				+ ", week=" + week + ", wind=" + wind + "]";
	}

代码实现

<pre name="code" class="html">//创建集合
			ArrayList<MyBean> al = new ArrayList<MyBean>();
			//创建JSONObject的对象
			JSONObject object01 = new JSONObject(data);
			//通过第一个数据得到对象
			JSONObject object02 = object01.getJSONObject("result");
			//通过第二个数据得到数组
			JSONArray array01 = object02.getJSONArray("future");
			//循环遍历
			for (int i = 0; i < array01.length(); i++) {
				//得到每一个对象
				JSONObject object03 = array01.getJSONObject(i);
				String xdate = object03.getString("date");
				String xtemperature = object03.getString("temperature");
				String xweather = object03.getString("weather");
				String xweather_id = object03.getString("weather_id");
				String xweek = object03.getString("week");
				String xwind = object03.getString("wind");
				//创建JavaBean的对象
				MyBean bean = new MyBean(xdate, xtemperature, xweather, xweather_id, xweek, xwind);
				//添加数据
				al.add(bean);
			}
			//---------------------
			StringBuffer sb = new StringBuffer();
			//显示数据
			for (int i = 0; i < al.size(); i++) {
				MyBean bean = al.get(i);
				sb.append("bean:"+bean.toString()).append("\n");
				sb.append("------------").append("\n");
			}
			tv.setText(sb.toString());

4.开源框架 可以上github 原理其实就是工具类的封装，可以参见谷歌API！