官方文檔地址

• https://mp.weixin.qq.com/wiki?t=resource/res_main&id=mp1444738734

獲取token

• 調(diào)用地址及參數(shù)

https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=APPID&secret=APPSECRET

public static String GetToken(){
        String a = null;
        try { 
            String u3 = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=Appid&secret=Secret";
            String u4 = u3.replace("Appid", "這里填你自己的微信公眾號的appid").replace("Secret", 這里填你自己的微信公眾號的secret);
             StringBuffer json1 = new StringBuffer();
             URL url = new URL(u4);
             HttpURLConnection conn = (HttpURLConnection) url.openConnection();
             InputStreamReader is =  new InputStreamReader(conn.getInputStream());
             BufferedReader br = new BufferedReader(is);
             String temp;
             while ((temp = br.readLine())!=null) {
               json1.append(temp).append("\n"); 
               JSONObject jsonObject = JSONObject.fromObject(temp);
                   String token = jsonObject.get("access_token").toString();
                   System.out.println("全局+++token:"+token);
                   a = token;
             }  
             return a;
    }catch (Exception e) {
            e.printStackTrace();
        }
        return "";
    }
    
    public static Object GetJsonObject(String url,String token,String jsonString){
        JSONObject jsonObject = new JSONObject();
        JSONObject jsonObject9 = new JSONObject();
        String u4 = url.replace("ACCESS_TOKEN", token);
         StringBuffer buffer = new StringBuffer();
         try { // 防止文件建立或讀取失敗，用catch捕捉錯誤并打印，也可以throw
             URL dizhi = new URL(u4);
             HttpURLConnection conn = (HttpURLConnection) dizhi.openConnection();
             conn.setRequestMethod("POST");
//           conn.setSSLSocketFactory(ssf);
             conn.setDoOutput(true);
             conn.setDoInput(true);
             conn.setUseCaches(false);
             if (null != jsonString) {
              OutputStream outputStream = conn.getOutputStream();
              // 注意編碼格式
              outputStream.write(jsonString.getBytes("UTF-8"));
              outputStream.close();
             }
             // 從輸入流讀取返回內(nèi)容
             InputStream inputStream = conn.getInputStream();
             InputStreamReader inputStreamReader = new InputStreamReader(inputStream, "utf-8");
             BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
             String str = null;
             
             while ((str = bufferedReader.readLine()) != null) {
                 
                 buffer.append(str);
             }
             // 釋放資源
             
             bufferedReader.close();
             inputStreamReader.close();
             inputStream.close();
             inputStream = null;
             conn.disconnect();

             jsonObject = JSONObject.fromObject(buffer.toString());
             System.out.println(jsonObject);
//           遍歷jsonobject 將title url thumb_url
             
             Map<String, Object> mapMax = new HashMap<String, Object>();
            JSONArray jsonArray = jsonObject.getJSONArray("item");
            List<Object> list = new ArrayList<Object>();
            for (int j = 0; j < jsonArray.size(); j++) {
                JSONObject jsonObject1 = (JSONObject)jsonArray.get(j);
                JSONArray jsonArray2 = jsonObject1.getJSONObject("content").getJSONArray("news_item");
                for (int i = 0; i < jsonArray2.size(); i++) {
                    Map<String, Object> map = new HashMap<String, Object>();
                    JSONObject jsonObject2 = (JSONObject)jsonArray2.get(i);
                    map.put("title", jsonObject2.get("title"));//標(biāo)題
                    map.put("url", jsonObject2.get("url"));//詳情頁地址
                    map.put("thumb_url", jsonObject2.get("thumb_url"));//縮略圖地址
                    map.put("create_time",jsonObject1.getJSONObject("content").get("create_time")+"000");
                    list.add(map);
                }
            }
            JSONArray jsonarr = JSONArray.fromObject(list);
            jsonObject9.put("list", jsonarr);
            jsonObject9.put("count", jsonArray.size());
            jsonObject9.put("code", "200");
            jsonObject9.put("msg", "success");
         }catch(Exception e){
            e.printStackTrace();
         }
        
        return jsonObject9;
    }

獲取素材

• 素材調(diào)用地址及參數(shù)

https://api.weixin.qq.com/cgi-bin/material/batchget_material?access_token=ACCESS_TOKEN

public static Object startTimer(String offset){
        JSONObject getJsonObject = new JSONObject();
        if (Tools.notEmpty(offset)) {
            String token = GetToken();
//          通過token獲取素材
              MaterialParam para = new MaterialParam();//調(diào)用接口所需要的參數(shù)實(shí)體類
              para.setType("news");
              para.setOffset(Integer.parseInt(offset));
              para.setCount(20);
              JSONObject jsonObject = new JSONObject();
              jsonObject = JSONObject.fromObject(para);
              String outputStr = jsonObject.toString();//將參數(shù)對象轉(zhuǎn)換成json字符串
              getJsonObject = (JSONObject)GetJsonObject("https://api.weixin.qq.com/cgi-bin/material/batchget_material?access_token=ACCESS_TOKEN", token,outputStr);
            System.out.println(getJsonObject);
        }else {
            getJsonObject.put("code", 300);
            getJsonObject.put("msg", "參數(shù)不能為空");
        }
        
        
        return getJsonObject;
    }

• 注
  曾拿微信小程序獲取調(diào)用此素材列表接口,卻一直請求失敗,一直提示媒體類型無效,不明白是什么原因,你知道就告訴我吧,謝謝!!
• 另附實(shí)體類代碼

/*獲取素材列表調(diào)用接口所需要的參數(shù)實(shí)體類**/
public class MaterialParam {
    
    private String type;//素材的類型，圖片（image）、視頻（video）、語音 （voice）、圖文（news）
    
    private int offset;//從全部素材的該偏移位置開始返回，0表示從第一個素材 返回
    
    private int count;//返回素材的數(shù)量，取值在1到20之間

    public String getType() {
        return type;
    }

    public void setType(String type) {
        this.type = type;
    }

    public int getOffset() {
        return offset;
    }

    public void setOffset(int offset) {
        this.offset = offset;
    }

    public int getCount() {
        return count;
    }

    public void setCount(int count) {
        this.count = count;
    }
    
}

• 返回值實(shí)體類根據(jù)參數(shù)實(shí)體類自行腦補(bǔ),不再贅述