Java Gson.toJson方法代碼示例

import com.google.gson.Gson; //導入方法依賴的package包/類
/****************************Methods used to operate one FAVORITE POIs******************************************/

    public void saveToFavoritesPOI(ParcelablePOI poi) {
        if (poi == null) return;
        preferences = context.getSharedPreferences(FAVORITES, Context.MODE_PRIVATE);
        SharedPreferences.Editor editor = preferences.edit();

        ArrayList<ParcelablePOI> previouslyStored = getFavoritePOIs();
        if (previouslyStored == null) {
            //No previous data
            previouslyStored = new ArrayList<>();
        }
        previouslyStored.add(0, poi);//add always new POIs to first position
        //Store FAVORITES
        Gson gson = new Gson();
        String json = gson.toJson(previouslyStored);
        editor.putString("FAVORITES", json);
        editor.apply();
    }
 

import com.google.gson.Gson; //導入方法依賴的package包/類
private static <T, K> T parseSet(String json, Class<K> keyClass) {
	Set<K> resultSet = new HashSet<>();
	if (keyClass == null) {
		return (T) resultSet;
	}

	Gson gson = getGson();
	Set<K> set = gson.fromJson(json, new TypeToken<Set<K>>() {
	}.getType());

	for (K value : set) {
		String valueJson = gson.toJson(value);
		resultSet.add(gson.fromJson(valueJson, keyClass));
	}
	return (T) resultSet;
}
 

import com.google.gson.Gson; //導入方法依賴的package包/類
/**
 * 
 * @param response
 * @param request
 * @throws IOException
 */
@RequestMapping(value = "/admin/getimgamountdata", method = RequestMethod.POST)
public void getImgAmounData(HttpServletResponse response, HttpServletRequest request) throws IOException {

	request.setCharacterEncoding("utf-8");
	response.setCharacterEncoding("utf-8"); // 設置響應responce編碼為utf-8
	PrintWriter out = response.getWriter();
	String json;
	Gson gson = new Gson();
	Assign assign = new Assign();

	long amount10 = imageService.getAmountOfDefinedTask(10);
	long amount20 = imageService.getAmountOfDefinedTask(20);
	long amount30 = imageService.getAmountOfDefinedTask(30);
	long all_task_amount = amount10 + amount20 + amount30;
	assign.setAmount10(amount10 + "");
	assign.setAmount20(amount20 + "");
	assign.setAmount30(amount30 + "");
	assign.setAll_task_amount(all_task_amount + "");

	Message<Assign> message = new Message<Assign>("200", "", assign);// 初始化message對象
	json = gson.toJson(message, Message.class); // 使用gson將Message對象轉化為字符串
	out.print(json);
}
 

import com.google.gson.Gson; //導入方法依賴的package包/類
/**
 * Returns from a given concept the data properties and obejctproperties and
 * to each objecproperty a concept in the case the step range is greater 1
 * 
 * @param concept
 * @param step
 *            range
 * @param
 * @return
 */
@CrossOrigin
@RequestMapping(value = "/executeSPARQLSelect", method = RequestMethod.GET)
HttpEntity<Object> executeSPARQLSelect(@RequestParam("inputAsJson") String inputAsJson) {
	Logger.getAnonymousLogger().log(Level.INFO, "Invoke: executeSPARQLSelect: " + inputAsJson);
	OutputForExecuteSelect outputForExecuteSelect = new OutputForExecuteSelect();
	try {
		Gson gson = new Gson();
		InputParamaterForExecuteSelect inputParamaterForExecuteSelect = gson.fromJson(inputAsJson,
				InputParamaterForExecuteSelect.class);

		outputForExecuteSelect = sparqlDerivation.createSPARQLAndExecuteIT(inputParamaterForExecuteSelect);

		String result = "";
		result = gson.toJson(outputForExecuteSelect);

		return new ResponseEntity<Object>(result, HttpStatus.OK);
	} catch (Exception e) {
		return new ResponseEntity<Object>(e.getMessage(), HttpStatus.INTERNAL_SERVER_ERROR);
	}

}
 

import com.google.gson.Gson; //導入方法依賴的package包/類
@Override
public void onDestroy() {
    super.onDestroy();
    mlocationClient.stop();
    myOrientationListener.stop();
    Log.d("gaolei", "RouteService----0nDestroy---------------");
    Gson gson = new Gson();
    String routeListStr = gson.toJson(routPointList);
    Log.d("gaolei", "RouteService----routeListStr-------------" + routeListStr);
    Bundle bundle = new Bundle();
    bundle.putString("totalTime", totalTime + "");
    bundle.putString("totalDistance", totalDistance + "");
    bundle.putString("totalPrice", totalPrice + "");
    bundle.putString("routePoints", routeListStr);
    Intent intent = new Intent(this, RouteDetailActivity.class);
    intent.putExtras(bundle);
    intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
    startActivity(intent);
    if (routPointList.size() > 2)
        insertData(routeListStr);
    Utils.releaseWakeLock();
    stopForeground(true);
}
 

import com.google.gson.Gson; //導入方法依賴的package包/類
public String create_update_user(Object data) {
    Gson gson = new Gson();
    String json = gson.toJson(data);
    return post("user/createdituser", json);
}
 

import com.google.gson.Gson; //導入方法依賴的package包/類
/**
 * 管理員獲取誌願者上傳的貢獻壓縮包
 * 
 * @param start
 * @param page_num
 * @param response
 * @param request
 * @throws IOException
 */
@RequestMapping(value = "/admin/getcontributeuploadziplist", method = RequestMethod.POST)
public void getUploadZipListByUserList(@RequestParam("start") String start,
		@RequestParam("page_num") String page_num, HttpServletResponse response, HttpServletRequest request)
		throws IOException {
	// 設置編碼格式
	response.setCharacterEncoding("UTF-8");
	request.setCharacterEncoding("UTF-8");

	String json = "";
	Gson gson = new Gson();
	PrintWriter out = response.getWriter();
	SplitObject<ContributeImgListOfAll> splitObject = new SplitObject<ContributeImgListOfAll>();
	List<ContributeImgListOfAll> cImgs = new ArrayList<ContributeImgListOfAll>();
	// 分頁查詢誌願者上傳貢獻的壓縮包列表
	cImgs = contributeService.getContributeOfAllByUser(new Integer(start).intValue(),
			new Integer(page_num).intValue());
	splitObject.setList(cImgs);
	// 計算數據的頁數
	int num = contributeService.getAmountContributeOfAllByUser();
	if (num % Constant.DEVI_NUM == 0) {
		splitObject.setPages_num(num / Constant.DEVI_NUM);
	} else {
		splitObject.setPages_num(num / Constant.DEVI_NUM + 1);
	}

	// 查詢有記錄
	Message<SplitObject<ContributeImgListOfAll>> message = new Message<SplitObject<ContributeImgListOfAll>>("200",
			"", splitObject);
	json = gson.toJson(message);
	out.print(json);
}
 

import com.google.gson.Gson; //導入方法依賴的package包/類
public static void setHyperTrackLiveUser(Context context, HyperTrackLiveUser user) {
    SharedPreferences.Editor editor = getEditor(context);

    Gson gson = new Gson();
    String userJSON = gson.toJson(user);

    editor.putString(HYPERTRACK_LIVE_USER, userJSON);
    editor.apply();
}
 

import com.google.gson.Gson; //導入方法依賴的package包/類
/**
 * 群發消息預覽
 * @param accessToken
 * @param message
 * @param touser 公眾號的openid
 * @param towxname 微信號
 * @return
 */
public MassReturnCode preview(String accessToken, MassMessage message, String touser, String towxname) {
	Gson gson = new GsonBuilder().setFieldNamingPolicy(FieldNamingPolicy.LOWER_CASE_WITH_UNDERSCORES).create();
	String msgText = gson.toJson(message);
	@SuppressWarnings("unchecked")
	Map<String, Object> msgMap = gson.fromJson(msgText, HashMap.class);
	
	if(msgMap.get("filter")!=null){
		msgMap.remove("filter");
	}
	if(msgMap.get("touser")!=null){
		msgMap.remove("touser");
	}
	if(msgMap.get("send_ignore_reprint")!=null){
		msgMap.remove("send_ignore_reprint");
	}
	if(towxname!=null){
		msgMap.put("towxname", towxname);
	}else if(touser!=null){
		msgMap.put("touser", touser);
	}else{
		throw new IllegalArgumentException("群發消息預覽參數不符合要求,touser和towxname不能都為空。");
	}
	
	String url = WEIXIN_MASS_MESSAGE_PREVIEW_LINK + "?access_token=" + accessToken;
	return WeixinInterfaceHelper.post(url, msgMap, MassReturnCode.class);
}
 

import com.google.gson.Gson; //導入方法依賴的package包/類
public void requestExtendedInfo(EnumSIPValues... values) throws IOException {
    
    Socket socket = new Socket(this.address.getAddress(), this.address.getPort());
    try {
        socket.setSoTimeout(5000);
        
        //Setup json:
        List<String> toRequest = new ArrayList<String>();
        for (EnumSIPValues value : values) {
            toRequest.add(value.toString());
        }
        
        GsonBuilder builder = new GsonBuilder();
        Gson gson = builder.create();
        String endString = gson.toJson(toRequest);
        
        PrintWriter os = new PrintWriter(socket.getOutputStream());
        os.write(endString + "\n");
        os.flush();
        
        //Now wait for data:
        BufferedReader is = new BufferedReader(new InputStreamReader(socket.getInputStream()));
        String line;
        String json = "";
        while ((line = is.readLine()) != null) {
            json += line;
        }

        Type myTypeMap = new TypeToken<Map<String,Object>>(){}.getType();
        extendedValues = gson.fromJson(json, myTypeMap);
    } finally {
        socket.close();
    }
}
 

import com.google.gson.Gson; //導入方法依賴的package包/類
private HashMap<String, Object> makeB2BRequest(String product, Business recipient) {
    HashMap<String, Object> body = new HashMap<>();
    body.put("username", username);
    body.put("productName", product);

    //
    Gson gson = new Gson();
    String json = gson.toJson(recipient);
    HashMap map = gson.fromJson(json, HashMap.class);
    body.putAll(map);

    return body;
}
 

import com.google.gson.Gson; //導入方法依賴的package包/類
public void setAccountOrigin(AccountOrigin accountOrigin) {
    if (accountOrigin != null) {
        Gson gson = new Gson();
        String json = gson.toJson(accountOrigin);
        setAccountOrigin(json);
    }
}
 

import com.google.gson.Gson; //導入方法依賴的package包/類
/**
 * 保存List
 *
 * @param key      sp key值
 * @param datalist list
 * @param <T>      item 類型
 */
public static <T> void setDataList(String key, List<T> datalist) {
    if (null == datalist || datalist.size() <= 0)
        return;

    Gson gson = new Gson();
    //轉換成json數據，再保存
    String strJson = gson.toJson(datalist);
    SpUtils.putString(AppUtils.getContext(), key, strJson);
}
 

import com.google.gson.Gson; //導入方法依賴的package包/類
public static String toJson(Object object) {
    GsonBuilder gsonBuilder = new GsonBuilder();
    gsonBuilder.setPrettyPrinting();
    Gson gson = gsonBuilder.create();
    return gson.toJson(object);
}
 

import com.google.gson.Gson; //導入方法依賴的package包/類
public String parse(){
    Gson gson = gsonInstance();
    return gson.toJson( this );
}