android原生JSON解析实例

 package net.bwie.jsonobject; import java.util.List; public class ShoppingBean { private String msg; private InfoBean info; public String getMsg() { return msg; } public void setMsg(String msg) { this.msg = msg; } public InfoBean getInfo() { return info; } public void setInfo(InfoBean info) { this.info = info; } @Override public String toString() { return "ShoppingBean{" + "msg='" + msg + '\'' + ", info=" + info + '}'; } public static class InfoBean { private int cat_id; private List good; private boolean url; public int getCat_id() { return cat_id; } public void setCat_id(int cat_id) { this.cat_id = cat_id; } public List getGood() { return good; } public void setGood(List good) { this.good = good; } public boolean isUrl() { return url; } public void setUrl(boolean url) { this.url = url; } @Override public String toString() { return "InfoBean{" + "cat_id=" + cat_id + ", good=" + good + ", url=" + url + '}'; } public static class GoodsBean { private long add_time; private String colorcode; private String currency_price; private String description; private String goods_id; private String goods_name; private String thumb; public long getAdd_time() { return add_time; } public void setAdd_time(long add_time) { this.add_time = add_time; } public String getColorcode() { return colorcode; } public void setColorcode(String colorcode) { this.colorcode = colorcode; } public String getCurrency_price() { return currency_price; } public void setCurrency_price(String currency_price) { this.currency_price = currency_price; } public String getDescription() { return description; } public void setDescription(String description) { this.description = description; } public String getGoods_id() { return goods_id; } public void setGoods_id(String goods_id) { this.goods_id = goods_id; } public String getGoods_name() { return goods_name; } public void setGoods_name(String goods_name) { this.goods_name = goods_name; } public String getThumb() { return thumb; } public void setThumb(String thumb) { this.thumb = thumb; } @Override public String toString() { return "GoodsBean{" + "add_time=" + add_time + ", colorcode='" + colorcode + '\'' + ", currency_price='" + currency_price + '\'' + ", description='" + description + '\'' + ", goods_id='" + goods_id + '\'' + ", goods_name='" + goods_name + '\'' + ", thumb='" + thumb + '\'' + '}'; } } } }

 /** * 1、将json文件存在外部存储中，使用IO流读取文件中的数据 * 2、使用JSONObject解析读取出来的数据 */ public class MainActivity extends AppCompatActivity implements View.OnClickListener { private String mJson = ""; protected Button mReadFileBtn; protected Button mParseBtn; protected TextView mResultTv; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); super.setContentView(R.layout.activity_main); initView(); } @Override public void onClick(View view) { if (view.getId() == R.id.read_file_btn) { readFile(); } else if (view.getId() == R.id.parse_btn) { ShoppingBean shopping = parseJson(); Log.d("1507", "" + shopping); } } // 解析JSON数据 // 遇到{}就创建JSONObject，遇到[]就创建JSONArray private ShoppingBean parseJson() { ShoppingBean shopping = null; try { JSONObject rootObject = new JSONObject(mJson); shopping = new ShoppingBean(); String msg = rootObject.getString("msg"); shopping.setMsg(msg); JSONObject infoObject = rootObject.getJSONObject("info"); ShoppingBean.InfoBean info = new ShoppingBean.InfoBean(); shopping.setInfo(info); int catId = infoObject.getInt("cat_id"); info.setCat_id(catId); boolean url = infoObject.getBoolean("url"); info.setUrl(url); JSONArray goodsArray = infoObject.getJSONArray("goods"); List goodsList = new ArrayList<>(); info.setGood(goodsList); for (int i = 0; i