這篇文章主要講解了“如何用聚合數(shù)據(jù)技術(shù)獲取數(shù)據(jù)”，文中的講解內(nèi)容簡單清晰，易于學(xué)習(xí)與理解，下面請大家跟著小編的思路慢慢深入，一起來研究和學(xué)習(xí)“如何用聚合數(shù)據(jù)技術(shù)獲取數(shù)據(jù)”吧！

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1、首先你需要注冊聚合數(shù)據(jù)，獲取相應(yīng)的KEY，http://www.juhe.cn

2、得到相應(yīng)的key后，我們就可以通過代碼來獲取數(shù)據(jù)了，具體代碼如下:

/**
 * 獲取菜譜數(shù)據(jù)
 */
public class CaiPumMenueActivity extends Activity {
    //配置您申請的KEY
    public static final String APPKEY = "82ca66***********49a93e5";
    String apiAddress = "http://apis.juhe.cn/cook/query?key=" + APPKEY +
            "&menu=午餐&rn=10&pn=3";

    /**
     * 請求菜譜數(shù)據(jù)
     * @param url:請求 用AsyncTask異步請求
     */
    public void readNet(String url)  //請求菜譜數(shù)據(jù)
    {
        new AsyncTask() {
            StringBuilder sb;
            @Override
            protected String doInBackground(String... params) {
  try {
                        URL url = new URL(params[0]);
                        URLConnection connection = url.openConnection();      //建立連接
                        InputStream inputStream = connection.getInputStream();
                        InputStreamReader inputStreamReader = new InputStreamReader(inputStream);
                        BufferedReader br = new BufferedReader(inputStreamReader);
                        String line;
                        sb = new StringBuilder();
                        while ((line = br.readLine()) != null) {
                            sb.append(line);
                        }
                        br.close();
                        inputStream.close();
                        return sb.toString();
                    } catch (MalformedURLException e) {
                        Toast.makeText(CaiPumMenueActivity.this, "獲取數(shù)據(jù)異常", Toast.LENGTH_LONG).show();
                        e.printStackTrace();
                    } catch (IOException e) {
                        Toast.makeText(CaiPumMenueActivity.this, "數(shù)據(jù)流異常", Toast.LENGTH_LONG).show();
                        e.printStackTrace();
                    }
                }

            @Override
            protected void onPreExecute() {
                super.onPreExecute();
            }

            @Override
            protected void onPostExecute(String s) {
                try {
                    if(s.equals(null))
                    {
                        //readjson("zaocan.json");    //從本地讀取json數(shù)據(jù)
                        Toast.makeText(CaiPumMenueActivity.this,"獲取資源失敗",Toast.LENGTH_SHORT).show();
                    }}

            /**
             * 開始解析json數(shù)據(jù)
             * @param sb
             * @throws JSONException
             */
            public void startJson(String sb) throws JSONException {
                JSONObject root = new JSONObject(sb);
                if ("Success".equals(root.getString("reason"))) {
                    List> list = null;
                    list = new ArrayList>();
                    Map map = null;
                    result = root.getString("result");
                    JSONObject root1 = new JSONObject(result);
                    //int totalNum = root1.getInt("totalNum");
                    JSONArray jsonArray = root1.getJSONArray("data");//處理json數(shù)組
                    for (int i = 0; i < jsonArray.length(); i++) {
                        JSONObject tree = jsonArray.getJSONObject(i);
                        id = tree.getInt("id");
                        title = tree.getString("title");
                        tags = tree.getString("tags");
                        imtro = tree.getString("imtro");
                        ingredients = tree.getString("ingredients");
                        burden = tree.getString("burden");

                        JSONArray album = tree.optJSONArray("albums");
                        albums = album.getString(0);                   //圖片地址

                        map = new HashMap();
                        map.put("id", id);
                        map.put("title", title); //菜名
                        map.put("imtro", imtro); //簡介
                        map.put("albums", albums);//菜譜地址

                        JSONArray steps = tree.getJSONArray("steps");//菜譜步驟
                        for (int j = 0; j < steps.length(); j++) {
                            JSONObject ste = steps.getJSONObject(j);
                            img = ste.getString("img");
                            step = ste.getString("step");
                            map.put("img", img);
                            map.put("step", step);
                            //list.add(map);
                        }
                        list.add(map);
                    }
                    Toast.makeText(CaiPumMenueActivity.this, "獲取菜譜失敗:" + root.getString("reason")+"}}+"+list.size(), Toast.LENGTH_LONG).show();
                    /**
                     * 設(shè)置適配器并將 list集合傳過去
                     */
                    listView = (ListView) findViewById(R.id.caipu_lv);
                    listView.setAdapter(new JsonAdapter(CaiPumMenueActivity.this, list,listView));
                } else {
                    Toast.makeText(CaiPumMenueActivity.this, "獲取菜譜失敗" + root.getString("reason"), Toast.LENGTH_LONG).show();
                }
            }
        }.execute(url);
    }

}

JSON返回示例：

{
    "resultcode": "200",
    "reason": "Success",
    "result": {
        "data": [{
            "id": "45",
            "title": "秘制紅燒肉",
            "tags": "家常菜;熱菜;燒;煎;燉;紅燒;炒鍋",
            "imtro": "做紅燒肉的豆親們很多，大家對紅燒肉的熱愛更不用我說，從名字上就能反映出來。一些高手們對紅燒肉的認(rèn)識更是令我佩服，單單就紅燒肉的做法、菜譜都看得我是眼花繚亂，口水橫流。單純的紅燒肉我平時還真沒做過，再不抓緊時間做一回解解饞，不是對不起別人，而是太對不起我自己了！ 這道菜的菜名用了秘制二字來形容，當(dāng)然是自己根據(jù)自己多年吃貨的經(jīng)驗想象出來的，我不介意把自己的做法與大家共享，只為大家能同我一樣，吃到不同口味的紅燒肉。不同的人們根據(jù)自己的習(xí)慣都有不同的做法，味道也不盡相同。我的秘制的關(guān)鍵就是必須用玫瑰腐乳、冰糖和米醋這三種食材，腐乳和冰糖可以使燒出來的肉色澤紅亮，米醋能解膩，令肥肉肥而不膩，此法燒制的紅燒肉軟糯中略帶咸甜，的確回味無窮！",
            "ingredients": "五花肉,500g",
            "burden": "玫瑰腐乳,適量;鹽,適量;八角,適量;草果,適量;香葉,適量;料酒,適量;米醋,適量;生姜,適量",
            "albums": ["http:\/\/img.juhe.cn\/cookbook\/t\/0\/45_854851.jpg"],
            "steps": [{
                "img": "http:\/\/img.juhe.cn\/cookbook\/s\/1\/45_0824e37faf00b71e.jpg",
                "step": "1.將五花肉煮至斷生狀態(tài)"
            },
            {
                "img": "http:\/\/img.juhe.cn\/cookbook\/s\/1\/45_b6d7329b703f6e85.jpg",
                "step": "2.切成大小一致的塊"
            },
            {
                "img": "http:\/\/img.juhe.cn\/cookbook\/s\/1\/45_6ee9e8dab0516333.jpg",
                "step": "3.放在鍋內(nèi)煎"
            },
            {
                "img": "http:\/\/img.juhe.cn\/cookbook\/s\/1\/45_b9afd6d4dd81f55c.jpg",
                "step": "4.入生姜"
            },
            {
                "img": "http:\/\/img.juhe.cn\/cookbook\/s\/1\/45_d0170fbe236421f9.jpg",
                "step": "5.放八角草果各一個，香葉一片"
            },
            {
                "img": "http:\/\/img.juhe.cn\/cookbook\/s\/1\/45_639b12210745fa41.jpg",
                "step": "6.放冰糖"
            },
            {
                "img": "http:\/\/img.juhe.cn\/cookbook\/s\/1\/45_c25e0cedd2012f45.jpg",
                "step": "7.加料酒"
            },
            {
                "img": "http:\/\/img.juhe.cn\/cookbook\/s\/1\/45_eb68327980f022dd.jpg",
                "step": "8.加玫瑰腐乳和腐乳汁及適量鹽"
            },
            {
                "img": "http:\/\/img.juhe.cn\/cookbook\/s\/1\/45_ac17263a11507a41.jpg",
                "step": "9.加米醋"
            },
            {
                "img": "http:\/\/img.juhe.cn\/cookbook\/s\/1\/45_f5489af5d12b4930.jpg",
                "step": "10.加水繼續(xù)燉"
            },
            {
                "img": "http:\/\/img.juhe.cn\/cookbook\/s\/1\/45_8e0cf83cb7306281.jpg",
                "step": "11.直至肉變軟糯湯汁收干即可"
            }]
        },
        {
            "id": "52",
            "title": "經(jīng)典紅燒肉",
            "tags": "家常菜;咸;半小時-1小時;孕婦;青少年;老人;白領(lǐng);晚餐;紅燒;營養(yǎng);增強抵抗力;全菜系;1-2人;待客菜;鍋子",
            "imtro": "紅燒肉是熱菜菜譜之一，以五花肉為制作主料，紅燒肉的做法各地也會稍有不同。南方習(xí)慣用醬油（老抽）調(diào)色，而北方則偏愛炒糖色兒，紅燒肉也是我拿手菜之一，不管是逢年過節(jié)還是親朋聚會都不會少了誘人的紅燒肉。紅燒肉的特點；濃油赤醬，肥而不膩，入口酥軟即化。",
            "ingredients": "五花肉,1000g",
            "burden": "蔥,適量;姜,適量;蒜,適量;八角,2粒;桂皮,1塊;干辣椒,1個;醬油,適量;冰糖,適量;鹽,適量;料酒,適量",
            "albums": ["http:\/\/img.juhe.cn\/cookbook\/t\/1\/52_759155.jpg"],
            "steps": [{
                "img": "http:\/\/img.juhe.cn\/cookbook\/s\/1\/52_b02a6aa276e3352f.jpg",
                "step": "1.五花肉洗凈切成大塊。"
            },
            {
                "img": "http:\/\/img.juhe.cn\/cookbook\/s\/1\/52_0cfde36e8061dd9c.jpg",
                "step": "2.冷水把肉下鍋燒開，把肉焯水。"
            },
            {
                "img": "http:\/\/img.juhe.cn\/cookbook\/s\/1\/52_4bbe9a903c8b144e.jpg",
                "step": "3.準(zhǔn)備好 八角 桂皮 蔥姜蒜 辣椒。"
            },
            {
                "img": "http:\/\/img.juhe.cn\/cookbook\/s\/1\/52_887688f6d7716106.jpg",
                "step": "4.把鍋燒熱，下入焯水的五花肉，小火煸炒至五花肉出油。"
            },
            {
                "img": "http:\/\/img.juhe.cn\/cookbook\/s\/1\/52_72ddd29b5fba09c3.jpg",
                "step": "5.下入蔥姜蒜 八角 桂皮 辣椒繼續(xù)煸炒至肉色微黃。盛出。"
            },
            {
                "img": "http:\/\/img.juhe.cn\/cookbook\/s\/1\/52_90765e3bf8a33c53.jpg",
                "step": "6.鍋中留底油放入冰糖小火熬至起沫成棕紅色。"
            },
            {
                "img": "http:\/\/img.juhe.cn\/cookbook\/s\/1\/52_95ddaa107b65158b.jpg",
                "step": "7.倒入煸炒的五花肉翻炒均勻，使每塊肉均勻沾滿糖色，"
            },
            {
                "img": "http:\/\/img.juhe.cn\/cookbook\/s\/1\/52_68a1aa355f2c62e9.jpg",
                "step": "8.加入料酒、醬油"
            },
            {
                "img": "http:\/\/img.juhe.cn\/cookbook\/s\/1\/52_b4391bab5b4c70b7.jpg",
                "step": "9.加入開水沒過肉，蓋上鍋蓋開火煮沸，調(diào)小火燉40分鐘，"
            },
            {
                "img": "http:\/\/img.juhe.cn\/cookbook\/s\/1\/52_22e562a234ed1891.jpg",
                "step": "10.燒至肉熟爛、把湯汁收濃即可。"
            }]
        },
        {
            "id": "92",
            "title": "紅燒肉",
            "tags": "家常菜;快手菜",
            "imtro": "紅燒肉，各地各家的做法稍有不同味道即大不一樣，中餐的精妙在于食材隨意性而產(chǎn)生的變化，南方習(xí)慣用醬油(老抽)調(diào)色，而北方則偏愛炒糖色。 女人不要為了保持好身材，刻意與美味的肉類食品絕緣哦。其實，很多科學(xué)證明，適當(dāng)?shù)某匀獠⒉粫黾宇~外的脂肪。 豬肉經(jīng)過小火煸炒出油后，燉出來的紅炒肉是肥而不膩，軟爛入味，非常的好吃美味，也非常適合咱們的健康理念，即少油，又解饞，又解膩，下面，為你推薦這種紅燒肉的經(jīng)典做法，不用一滴油就可以做出美味健康的紅燒肉。",
            "ingredients": "豬后臀尖,1000g",
            "burden": "蔥段,適量;八角,2個;干辣椒,4個;香葉,4片;桂皮,1塊;鮮姜,1塊;干山楂片,4片;黃油,適量;老抽,適量;生抽,適量;白糖,適量;開水,適量",
            "albums": ["http:\/\/img.juhe.cn\/cookbook\/t\/1\/92_512827.jpg"],
            "steps": [{
                "img": "http:\/\/img.juhe.cn\/cookbook\/s\/1\/92_472370e29b980b31.jpg",
                "step": "1.豬肉清洗干凈切成方塊，冷水下鍋，水開后撇去上面的浮沫。"
            },
            {
                "img": "http:\/\/img.juhe.cn\/cookbook\/s\/1\/92_04f90c14513aa139.jpg",
                "step": "2.焯好的肉塊撈出，用溫水清洗干凈。"
            },
            {
                "img": "http:\/\/img.juhe.cn\/cookbook\/s\/1\/92_50af1fae3911794d.jpg",
                "step": "3.準(zhǔn)備好調(diào)料：干辣椒，桂皮，香葉，八角，（大蒜也可以不放）。"
            },
            {
                "img": "http:\/\/img.juhe.cn\/cookbook\/s\/1\/92_12f839ee0920c03b.jpg",
                "step": "4.做鍋開小火，不放油，把肉塊放入反復(fù)煸炒，煸炒至肉塊有點焦香，有油滲出，關(guān)火把肉塊撈出。"
            },
            {
                "img": "http:\/\/img.juhe.cn\/cookbook\/s\/1\/92_bfdc35cde7da929b.jpg",
                "step": "5.做鍋，用肉塊煸出的豬油燒熱，放入八角，干辣椒，桂皮，香葉煸炒出香味。"
            },
            {
                "img": "http:\/\/img.juhe.cn\/cookbook\/s\/1\/92_e21dddc1ffcad36b.jpg",
                "step": "6.放入肉塊煸炒1-2分鐘后撈出備用。"
            },
            {
                "img": "http:\/\/img.juhe.cn\/cookbook\/s\/1\/92_89ba401801a762fe.jpg",
                "step": "7.用鍋中剩下的余油放入2勺白糖（這個量可以根據(jù)自己的喜好添加，喜歡吃甜一點的就多放點糖），開小火煸炒白糖。"
            },
            {
                "img": "http:\/\/img.juhe.cn\/cookbook\/s\/1\/92_33f84ea85dcd11c9.jpg",
                "step": "8.這是糖色變化的過程"
            },
            {
                "img": "http:\/\/img.juhe.cn\/cookbook\/s\/1\/92_bbf69240b5f7211d.jpg",
                "step": "9.當(dāng)糖起小泡，顏色變紅就可以了。"
            },
            {
                "img": "http:\/\/img.juhe.cn\/cookbook\/s\/1\/92_114bbdd5ef3d1255.jpg",
                "step": "10.這時快速烹上1勺熱水，加入肉塊煸炒至肉塊顏色變紅。"
            },
            {
                "img": "http:\/\/img.juhe.cn\/cookbook\/s\/1\/92_831b33673ac8c507.jpg",
                "step": "11.煸炒至豬肉塊上色后，加入適量生抽，老抽（不可多放，放多了顏色就發(fā)黑了），黃酒煸炒。"
            },
            {
                "img": "http:\/\/img.juhe.cn\/cookbook\/s\/1\/92_a377c03180cb6b26.jpg",
                "step": "12.加入開水（多放點水，最好一次加足，肉燉熟了可以大火收湯，水少了，中途加水就影響肉質(zhì)的口感了），再把姜塊，蔥段，山楂片放入。"
            },
            {
                "img": "http:\/\/img.juhe.cn\/cookbook\/s\/1\/92_127b81298ad6cf93.jpg",
                "step": "13.蓋上鍋蓋，大火燒開，小火燉煮1個小時。"
            },
            {
                "img": "http:\/\/img.juhe.cn\/cookbook\/s\/1\/92_59ebcf1a60e54619.jpg",
                "step": "14.燉煮了一個小時了，湯汁也差不多剩一半了，這時加入6克鹽（鹽可以根據(jù)自己的口味添加，在還有湯的情況下，不要嘗出咸味正好，等湯汁收濃就會咸了），小火繼續(xù)燉煮。"
            },
            {
                "img": "http:\/\/img.juhe.cn\/cookbook\/s\/1\/92_f4cbb0c04220428e.jpg",
                "step": "15.當(dāng)品嘗到肉質(zhì)軟爛，就可以大火收汁，一鍋肥而不膩，肉質(zhì)酥爛，誘人食欲的紅燒肉就燉好了，趕快就著小酒，大快朵頤的享受吧"
            },
            {
                "img": "http:\/\/img.juhe.cn\/cookbook\/s\/1\/92_372112ff28389c98.jpg",
                "step": "16.炎熱的夏季，吃一頓少油，解膩，又美味的紅燒肉大餐。"
            },
            {
                "img": "http:\/\/img.juhe.cn\/cookbook\/s\/1\/92_1630281ff0350105.jpg",
                "step": "17.再來一張，想吃嗎，那就趕緊動手吧，呵呵。"
            }]
        }],
        "totalNum": "306",
        "pn": "1",
        "rn": "3"
    },
    "error_code": 0
}

4、通過網(wǎng)絡(luò)獲取圖片

 /**
     * //創(chuàng)建新的子線程
     * 獲取圖片
     */
    public void ImgThread(final String img) {
        new Thread() {
            private HttpURLConnection conn;
            private Bitmap bitmap;

            @Override
            public void run() {
                super.run();
                try {
                    URL url = new URL(img);
                    conn = (HttpURLConnection) url.openConnection();
                    conn.setConnectTimeout(5000);
                    conn.setRequestMethod("GET");
                    int code = conn.getResponseCode();
                    if (code == 200) {
                        InputStream is = conn.getInputStream();
                        bitmap = BitmapFactory.decodeStream(is);
                        Message msg = new Message();
                        msg.what = 1;
                        msg.obj = bitmap;
                        handler.sendMessage(msg);
                    } else {
                        Message msg = new Message();
                        msg.what = 2;
                        handler.sendMessage(msg);
                    }

                } catch (MalformedURLException e) {
                    Message msg = new Message();
                    msg.what = 2;
                    handler.sendMessage(msg);
                    e.printStackTrace();
                } catch (IOException e) {
                    Message msg = new Message();
                    msg.what = 2;
                    handler.sendMessage(msg);
                    e.printStackTrace();
                }
            }
        }.start();
    }

感謝各位的閱讀，以上就是“如何用聚合數(shù)據(jù)技術(shù)獲取數(shù)據(jù)”的內(nèi)容了，經(jīng)過本文的學(xué)習(xí)后，相信大家對如何用聚合數(shù)據(jù)技術(shù)獲取數(shù)據(jù)這一問題有了更深刻的體會，具體使用情況還需要大家實踐驗證。這里是創(chuàng)新互聯(lián)，小編將為大家推送更多相關(guān)知識點的文章，歡迎關(guān)注！