前提是引用Volley的异步机制，引入它的jar包

 

public void getJSONByVolley() {　　　　//mContext为上下文，        RequestQueue requestQueue = Volley.newRequestQueue(mContext);        String JSONDataUrl = "http://sjshop.easyder.com/app/order_index/getCart?buyer_id=511";        final ProgressDialog progressDialog = ProgressDialog.show(mContext, "正在下载", "Loading......");        progressDialog.setCancelable(true);//progressDialog可以取消        JsonObjectRequest jsonObjectRequest = new JsonObjectRequest(                Request.Method.GET,                JSONDataUrl,                null,                new Response.Listener
     
      () {                    @Override                    public void onResponse(JSONObject response) {                        try {                            getcartJson(response);                        } catch (Exception e) {                            e.getMessage();                        }                        if (progressDialog.isShowing() && progressDialog != null) {                            progressDialog.dismiss();                        }                    }                },                new Response.ErrorListener() {                    @Override                    public void onErrorResponse(VolleyError arg0) {                        System.out.println("sorry,Error");                    }                });        requestQueue.add(jsonObjectRequest);        Log.i(TAG, "shopBeanList ---->解析完Json   ");    }    //getcart的网络解析，参数-->JSONObject    public void getcartJson(JSONObject jsonObject) {//        创建商店列表        List
      
        shopBeanList= new ArrayList
       
        ();        JSONObject objectInfo = null;        try {            objectInfo = jsonObject.getJSONObject("info");            JSONArray arraygroup = objectInfo.getJSONArray("group");            for (int i = 0; i 
        
          "+ item);            }        } catch (JSONException e) {            e.printStackTrace();        }        if(mCallback!=null){            mCallback.getDat(shopBeanList);        }    }
        
       
      
     

实体类中添加了一个JsonObject的构造函数

ShopBean实体类：

/** * Created by Administrator on 2015/7/19 0019. */public class ShopBean {    private int seller_uid;//店铺ID    private String seller_name;//店铺名称    public List
     
       goodsList;//商品信息列表    public String getSeller_name() {        return seller_name;    }    public void setSeller_name(String seller_name) {        this.seller_name = seller_name;    }    public int getSeller_uid() {        return seller_uid;    }    public List
      
        getGoodsList() {        return goodsList;    }    public void setGoodsList(List
       
         goodsList) {        this.goodsList = goodsList;    }    public void setSeller_uid(int seller_uid) {        this.seller_uid = seller_uid;    }    public ShopBean() {    }    //构造函数，参数为JSONObject型    public ShopBean(JSONObject jsonObject) {        this.seller_uid = jsonObject.optInt("seller_uid");        this.seller_name = jsonObject.optString("seller_name");        GoodsBean goodsBean;        JSONArray jsonArray = jsonObject.optJSONArray("goods");        if (jsonArray != null && jsonArray.length() > 0) {            try {                goodsList = new ArrayList<>();                for (int j = 0; j < jsonArray.length(); j++) {                    goodsBean = new GoodsBean(jsonArray.getJSONObject(j));                    goodsList.add(goodsBean);                }            } catch (JSONException e) {                e.printStackTrace();            }        }    }}
       
      
     

GoodsBean实体类：

/** * Created by Administrator on 2015/7/24. */public class GoodsBean {    private int stock_id;//商品ID    private String goods_name;//商品名称    private int qty;//商品的星级    private boolean is_choose;//是否选中    private double price;//单价    private String goods_img;//图片链接    private String extend;//图片拓展    private int stock_num;//商品数量    private double goodsTotalPrice;//商品总价    private double rate;//商品税率    public String getGoods_name() {        return goods_name;    }    public void setGoods_name(String goods_name) {        this.goods_name = goods_name;    }    public int getQty() {        return qty;    }    public void setQty(int qty) {        this.qty = qty;    }    public boolean is_choose() {        return is_choose;    }    public void setIs_choose(boolean is_choose) {        this.is_choose = is_choose;    }    public double getPrice() {        return price;    }    public void setPrice(double price) {        this.price = price;    }    public String getGoods_img() {        return goods_img;    }    public void setGoods_img(String goods_img) {        this.goods_img = goods_img;    }    public String getExtend() {        return extend;    }    public void setExtend(String extend) {        this.extend = extend;    }    public int getStock_num() {        return stock_num;    }    public void setStock_num(int stock_num) {        this.stock_num = stock_num;    }    public double getGoodsTotalPrice() {        return goodsTotalPrice;    }    public void setGoodsTotalPrice(double goodsTotalPrice) {        this.goodsTotalPrice = goodsTotalPrice;    }    public double getRate() {        return rate;    }    public void setRate(double rate) {        this.rate = rate;    }    public int getStock_id() {        return stock_id;    }    public void setStock_id(int stock_id) {        this.stock_id = stock_id;    }    public GoodsBean(JSONObject jsonObject){        this.stock_id = jsonObject.optInt("stock_id");        this.goods_name = jsonObject.optString("goods_name");        this.qty = jsonObject.optInt("qty");        this.is_choose = jsonObject.optBoolean("is_choose");        this.price = jsonObject.optDouble("price");        this.goods_img = jsonObject.optString("goods_img");        this.extend = jsonObject.optString("extend");        this.stock_num = jsonObject.optInt("stock_num");        this.goodsTotalPrice = jsonObject.optDouble("goodsTotalPrice");        this.rate = jsonObject.optDouble("rate");    }    public GoodsBean(){    }    @Override    public String toString() {        return  "等级:" + qty + " " +                "税率:" + rate                ;    }}