Gson Parse Json Key Value

The GSON JsonParser class can parse a JSON string or stream into a tree structure of Java objects. By David Walsh on April 4, 2011. Using JObject. In this Java tutorial, we will convert JSON Array to String array in Java and subsequently create JSON from Java String Array. parse()メソッドは JSON 文字列を解析して JavaScript のオブジェクトに変換します。 JSON. Overview of The Gson API. We can have nested JSON objects too and it provides an easy way to represent arrays also. So what I want to achieve: get json object, which has all 5 Products. Welcome back to another blog post in our Gson series. Solved: Hi, I am connecting to Dynamics 365 and returning a list of records. net ; What is the correct JSON content type? How can I deserialize JSON to a simple Dictionary in ASP. This is not a very. JSON is easy for API’s to parse and generate. Just incase if you want to take a look at simple JSON tutorial which I’ve written sometime back. You can click to vote up the examples that are useful to you. 所以针对这两种类型,来展开对json数据的操作。 GSON在解析json的时候,大体上有2种类型,一种是直接在内存中生成object或array,通过手工指定key来获取值;另一种是借助javabean来进行映射获取值。 二、对 json 数据进行反序列化,得到java 对象. A json object can be easily converted to a string and vice-versa. I am currently working on an android project that requires me to invoke a web service that will return me a json file. Gson gson = new Gson(); Si tenemos el bean instanciado y queremos convertirlo a una cadena JSON, el código es este. parse 解析 带斜杠JSON字符串 问题-json中如果有数字作为key,使用Gson. ; The other way is to use the com. GSON is an open source JSON parser developed by Google to serialize and deserialize JSON in Java. There are many open source libraries are present to parse json to object or just to read json values. It is an unordered set of name/value pairs. JSON (JavaScript Object Notation) is a lightweight data-interchange format. Swift 4 and Foundation has finally answered the question of how to parse JSON with Swift. This stream includes both literal values (strings, numbers, booleans, and nulls) as well as the begin and end delimiters of objects and arrays. To use JSON in your camel routes you need to add the a dependency on camel-gson which implements this data format. I understand how it finds the key and update the value. 在Java开发互联网应用系统的过程中,数据的传递与转换是经常使用的,我在开发的过程中用的最多的是google的Gson,现就其使用的过程中的注意点做一个总结(当然首先要先去下载Gson的jar包,附件提供相应的jar包)。. Suppose the key of the configuration property stored in the XML is “username”, with value, “alice”, then Go will make sure that the value is available to the template as “username” when used in an Angular-specific HTML attribute like “ng-model”. It is based on a subset of the JavaScript Programming Language Standard ECMA-262 3rd Edition - December 1999. classOfId value set by the InstanceCreator with the null value from the JSON. An example of this file is as below:. Tovalue parse. For example {"_modelNumber":false} I am trying to iterate through the list below and grab the value "_modelNumber" and "false" data in the below foreach added to my datatable. It has been working well until I come across this json data which the key fields are dynamic. gson을 사용하면 자바 객체를 json으로 또는. Following is an example to read a. The following are Jave code examples for showing how to use parse() of the com. Each key is followed by a single colon (“:”), separating the key. The approach using a regex to pattern match on the key and then extract the value. Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. Gson Builder — Force Serialization of null Values by Norman Peitek on July 21 2016 , tagged in Gson , Android , Java , 4 min read. Properties within the schema are defined and with another object containing their expected type. class); access the json encoded object returned by php in jquery. While most decoders will accept these values as valid JSON, some may not, as the specification is ambiguous on this point. Converting key-value string into Map via GSON library There is some problem, how to convert key-value pair type string data into Map of the class object? Scenario- when we want to send a request object that has key-value pair property, Data comes from the. Is there a way to do this?. Flask: Parsing JSON data. In my case, Gson parses such JSON and sets a to 3. 9, in the benchmarks. If this method is defined within the JSON object, its return value will be used by JSON. Oh, if this JSON is output from an http request, you can skip the JSON node and just set the flag to return a json object. I have been using GSON library to parse all the json file and get a JSON object. Gson: Gson is for JSON. stringify() to form the new JSON string. Converting Objects from one form to another is a common request. Gson Builder — Force Serialization of null Values by Norman Peitek on July 21 2016 , tagged in Gson , Android , Java , 4 min read. json library is enough in your case. Recursively parsing JSON response using GSON. In this tutorial, we will see how to use rest assured to post JSON. That being "content") get one element of the JSON and throw the rest. I have used it in TypeToken in Gson API to automagically read the response content into an ArrayList object. Your votes will be used in our system to get more good examples. To see an example, let's assume our JSON contains the employee's name as key and their hire date as its value. A json string or json object stores data in key-value format and it can also represent complex parent-child relationships thus making it a preferred way to store and transmit data. The variable declaration name should be same as JSON object name. If it is not completely JSON formatted, however, it will not work. Check the output file What is the expected output? What do you see instead? Expect to see the key represented as an Integer with no quotes. The following are Jave code examples for showing how to use parse() of the com. com by Dmitry. I'm takeing a result from a Bing search using their API, and trying to. You can create a wrapper class with the same structure as your JSON response and then use GSON to parse it. It also provides support for converting third party classes to json. For example, if you want to parse files in the JSON data format, you won’t find tools in the libraries that you receive. JSON objects are surrounded by curly braces {}. 所以说:Json是一种轻量级的数据交换格式. toJson() – Java object to JSON Gson gson = new Gson(); // 1. GSON is open source library which is used to convert JSON string data into java objects and vice versa. Recursively parsing JSON response using GSON. Read and Send JSON data in a java servlet. It shows your data side by side in a clear, editable treeview and in a code editor. We are going to write a sample program “read_json. NET Forums / Data Access / ADO. elconfidencial. JsonElement root = new JsonParser(). json-lib最开始的也是应用最广泛的json解析工具,json-lib 不好的地方确实是依赖于很多第三方包,. That’s not right! Looking at a RetrieveRequest, we see that the key bytes are being encoded as an array, rather than as a byte string. [] and separated by a comma. parse() function is included in all major browsers and in the latest ECMAScript (JavaScript) standard. JsonReader: Reads a JSON encoded value as a stream of tokens. Re: How to parse Json result from web services? Nov 29, 2013 12:14 PM | Siva Krishna Macha | LINK If you have equivalent C# class - then you could use DataContractJSONSerializer to do that work for you. Meaning that the first time an item is put into the object determines is position of serialization. Hi, How can I convert from a Dictionary or NameValueCollection into a Json string which can later go through the reverse process? I have tried the following source code, but it doesn't output the v. parse accepts a second parameter called reviver which is a function that gets called with every key/value pair in the object as it’s being parsed. I am having a hard time parsing a JSON response I am getting from a web server. GSON also has two other parsers. 获得 根节点元素 JsonElement element = parser. The issue is that it has no key for the elements. conf to know that the data is JSON formatted. JSON(JavaScript Object Notation) 是一种轻量级的数据交换格式。易于人阅读和编写。同时也易于机器解析和生成。 它基于JavaScript Programming Language, Standard ECMA-262 3rd Edition - December 1999的一个子集。. JSON (JavaScript Object Notation) is a lightweight, text-based, language-independent data exchange format that is easy for humans and machines to read and write. JSON is a format specification as mentioned by the rest. Deserializing from JSON with LINQ. It shows your data side by side in a clear, editable treeview and in a code editor. generate-non-executable-json= # Whether to generate non executable JSON by prefixing the output with some special text. So, here is an example of the data that I'm trying to parse. The following code examples are extracted from open source projects. Use the value attribute of the com. An object is an unordered collection of zero or more name/value pairs. 前面一篇文章我介绍了Gson的解析的基本方法。但我们在享受Gson解析的高度封装带来的便利时,有时可能会遇到一些特殊情况,比如json数据中的字段key是动态可变的时候,由于Gson是使用静态注解的方式来设置实体对象的,因此我们很难直接对返回的类型来判断。. With Gson I'm getting an exception that the String value is "Not a JSON Object" even though it passes validation in jsonlint. Converting key-value string into Map via GSON library There is some problem, how to convert key-value pair type string data into Map of the class object? Scenario- when we want to send a request object that has key-value pair property, Data comes from the. EncodeMapslice to encode key,value pairs into cbor buffer. jsmn example: parsing JSON with C. 3) from that response (which I cannot know how or what elements it contains but I know for sure it contains at least one that interests me. 0 and today i faced a problem when trying to parse a JSON String into Map. You can construct an instance of type JSON_ELEMENT_T only by parsing JSON text. Just annotate using @SerialName @SerialName("d_country") var country : String = "" Additional Utilities. xml 仍是比 json 對於資料的描述較為嚴謹,但如果僅是做為資料傳遞的用途,以 json 格式來儲存,檔案會比較小,解析速度也比 xml 快。 其他 json 實作還沒用過,選擇 gson 只是國外討論區上的推薦,而 gson 的文件也寫得很清楚,還滿容易上手的。. We can configure Gson to parse our map differently, then, by implementing a JsonDeserializer:. There are 4 different ways to convert Java Map/HashMap to JSONObject. Based on Douglas Crockford JSON. parse() limits itself to just parsing JSON. JavaScript JSON : Parsing Options. Keys must be valid strings, thus surrounded by double quotation marks. It is your responsibility to loop through this ITAB to fetch whatever you are looking for. Java GSON: Getting the list of all keys under a JSONObject. By continuing to browse this site, you agree to this use. An array is an ordered sequence of zero or more values. Recursively parsing JSON response using GSON. The following example shows how to use JSON to store information related to. We might have come across json responses which are having unknown key names. My code works fine, I am just writing in order to ask if there are better ways to do this, or if someone could refactor my code and make it more beautiful or with better performance. I am currently working on an android project that requires me to invoke a web service that will return me a json file. Subtypes JSON_OBJECT_T and JSON_ARRAY_T are used for JSON objects and arrays, respectively. IllegalArgumentException: Map objects need to be parameterized unless you use a custom serializer. Class variables can have different names than the name of key in json. ; The other way is to use the com. The main classes are: org. To get an Array value from a JSON array type, conditionally cast it as [Any] (or an array with a more specific element type, like [String]). This is required to parse JSON objects. For parsing a JSON object, we will create an object of class JSONObject and specify a string containing JSON data to it. I am currently working on an android project that requires me to invoke a web service that will return me a json file. A JSON text is a sequence of zero or more JSON objects. I recently had to parse JSON on a very small embedded system. We can easy to save it to a file or record in the database. parse() analyse une chaîne de caractères JSON et construit la valeur JavaScript ou l'objet décrit par cette chaîne. Cross-browser JSON Serialization in JavaScript In this article we will examine the benefits of object serialization, the current browser implementations, and develop some code that could help your. The member elements of this object are maintained in order they were added. For an example of how these class methods are used to parse an object from a JSON string and convert it into a JsonObject object, update the name/value pairs the object contains, and then serialize the updated JsonObject object as a JSON string, see Using JavaScript Object Notation (JSON). I understand how it finds the key and update the value. json")); // 2. Java Gson + JSON Tutorial with Examples. TAG gson, gson arraylist, gson example, gson example string to json, gson jar, gson json string to jsonobject, gson jsonarray, gson jsonobject, gson jsonparser, gson list, gson map to json string, gson string to json, gson string to json object, gson 사용법, java gson string to json, json, json parse, json parser c++, json parser 예제. Which you rarely do. In the spirit of posting a possible solution when the poster finds it, I'm posting this one. Java Examples for com. Jackson in a high performance, one of the fasted JSON parsing library, which also provides streaming capability. JSON is one of the widely used data-interchange format as it is a lightweight data-interchange format and language independent and it started to slowly replace the XML format. LINQ to JSON provides a number of methods for getting data from its objects. So JSON parsing with APEX_JSON is much more expensive than with the native functions - which is obvious, since APEX_JSON is a PL/SQL implementation whereas the PL/SQL object types have a C implementation as part of the database itself. The jsonlite package is a JSON parser/generator optimized for the web. gson for this purpose so please include its JAR file in your project to run this program. However, if we are aware that JSON_VALUE use more complex parsing rules that are context aware (JSON_VALUE need to remember paths of parent objects) and conversion of escaped characters, this might not be too bad. toJson() - Java object to JSON Gson gson = new Gson(); // 1. annotations. In our previous post we saw how we used Gson API to parse the Json using Java. JSON (JavaScript Object Notation) is an data exchange format and which is human-readable data. It can send parameters such as url query string or html form fields value to web server also. I tried to parse it using your parser and have received the edged key list, but all the information on the entire json files seems to be coming back as the key, INCLUDING the information inside of the keys, and there. Welcome to Gson Example Tutorial. The new value, and the value’s data type, are passed as the 3rd and 4th arguments. I was think about parsing the JSON till the "list" value and extracting the "item_id" and pass that value to the POJO since most of it is static or most of what I need. This site uses cookies for analytics, personalized content and ads. Note that the order of initial puts controls the order of serialization. In order to run below Java project, please add below Maven Dependency to your project. Based on Douglas Crockford JSON. 获得 解析者 JsonParser parser = new JsonParser(); 2. Your votes will be used in our system to get more good examples. Class variables can have different names than the name of key in json. To get an Array value from a JSON array type, conditionally cast it as [Any] (or an array with a more specific element type, like [String]). 浅谈Gson和FastJson解析JSON JSON定义和特点 定义:JSON(JavaScript Object Notation) 是一种轻量级 的数据交换格式 特点: 1、JSON采用完全独立于语言的文本格式 2、JavaScript的一个子集 3、易于人阅读和编写,同时也易于机器解析和生成 Confidential ? 2013 iSoftStone Holdings Limited. Java object to JSON file gson. 所以针对这两种类型,来展开对json数据的操作。 GSON在解析json的时候,大体上有2种类型,一种是直接在内存中生成object或array,通过手工指定key来获取值;另一种是借助javabean来进行映射获取值。 二、对 json 数据进行反序列化,得到java 对象. A json object can be easily converted to a string and vice-versa. Gson and Jackson are complete libraries offering JSON data-binding support for Java. Below are some features: Strictly follow CSV definition RF4180; Work with millions of lines of CSV data; Provide comprehensive parsing parameters. nevonexpress. GSON Streaming api provide facility to read and write large json objects using JsonReader and JsonWriter classes which is available from GSON version 1. And use JSONObject to parse the json string, then display the parsed out string in text view. java as Gson is a Java library and only accepts Java class. What's different about Flexjson is it's control over what gets serialized allowing both deep and shallow copies of objects. Parsing through the json tree and at the place the red arrow is pointing, it will find target_key and update its value. nonstrict might be a good idea to avoid exceptions. By default, a JSON object is parsed into a python dict. Read and Send JSON data in a java servlet. I know I can parse JSON as map, and then Gson throws exception in such case, but only if the duplicated key is. GSON parsing of nested array Tag: java , json , gson Im having difficulties understanding if GSON can handle this kind of json by default or do I need to implement deserializers for every sub element. parse(jsonString); а затем вы можете работать с json. simple, GSON, Jackson, and JSONP. 3) from that response (which I cannot know how or what elements it contains but I know for sure it contains at least one that interests me. gson gson 2. js new file. BSON [bee · sahn], short for Bin­ary JSON, is a bin­ary-en­coded seri­al­iz­a­tion of JSON-like doc­u­ments. JsonArray:. extendedStackTrace. The way the JsonParser works is by breaking the JSON up into a sequence of tokens which you can iterate one by one. Gson uses com. if value key in input json has a list of floating point numbers how it. And edit its put method to not allow duplicate keys. Â To include the cost of reading the parse tree in the benchmark, I then iterated over the entire document and summed the number of strings, numbers, object values, array elements, etc. It is a very light-weight, easy to use system for inter-operating with web and database services. Gson to create Java object from the POSTed JSON. I've tried different versions of converting e. json library. 将bean转换成Json字符串:. Use Gson with Kotlin All you have to do is sit back, take a cup of coffee and read some kick-ass code. parse() function:. Additionally, the XML standard defines a common attribute "xml:id", that can be used by the user, to set an ID explicitly. Our book contains everything you need to know about Gson. 오늘은 gson 사용 방법에 대해서 포스팅 해보려고 합니다. So that is a quick-n-dirty on how to parse JSON strings using the JavaScriptSerializer class. 20 11:50 먼저 json이란 (JavaScript Object Notation) 약어로 데이터 교환 형식이다. After reviewing the basics of Gson, model annotations and mapping of nested objects, we'll go on to a core feature: mapping of Arrays and Lists. The empty function under Workflow Definition Language would work with the NULL value, but for other functions, not working. The object model API uses builder patterns to create these object models. Just incase if you want to take a look at simple JSON tutorial which I’ve written sometime back. 1、gsongson是google发布的一个开源java类库,能够很方便的在java对象和json字符串之间进行序列化和反序列化。 com. I really cannot get this working. As a data-exchange format, it is widely used in web programming. Thanks for a detailed example. For example, if you want to parse files in the JSON data format, you won’t find tools in the libraries that you receive. Parsing JSON With the JsonParser. Even if there are automatic tools that create POJO classes from JSON data, it is important to know what’s behind. Another key difference is the addressing of values. JSONObject and com. So how to convert full Map object with 0 values ?. JSON format uses key-value pairs to describe data. Pavan July 14, 2011 at 4:48 AM. Here is my JSON in which I have only three reportRecords just for demonstration purpose but in general sometimes we are getting pretty huge JSON, then it doesn't have three reportRecords only, it has. Parsing through the json tree and at the place the red arrow is pointing, it will find target_key and update its value. Gson is typically used by first constructing a Gson instance and then invoking #toJson(Object) or #fromJson(String,Class)methods on it. com by Dmitry. JsonParser: A parser to parse Json into a parse tree of JsonElements; com. So JSON parsing with APEX_JSON is much more expensive than with the native functions - which is obvious, since APEX_JSON is a PL/SQL implementation whereas the PL/SQL object types have a C implementation as part of the database itself. This example will tell you how to use org. parse() function:. Deserializing from JSON with LINQ. Though Java doesn't have any inbuilt support to parse JSON response in core library, Java developers are lucky to have couple of good and feature rich JSON processing libraries such as GSON, Jackson and JSON-simple. JSON, or JavaScript Object Notation, is a minimal, readable format for structuring data. An example of this file is as below:. parse() analyse une chaîne de caractères JSON et construit la valeur JavaScript ou l'objet décrit par cette chaîne. Tag: android,json,gson. fromJson(json, Response. The JSON Libraries. gson from map to object (12). key/value pairs). In the next article, we'll begin looking at object-oriented JavaScript. Parse a JSON File You're really not going to need to parse JSON from within a Python program. JSON supports all the basic data types you’d expect: numbers, strings, and boolean values, as well as arrays and hashes. Further, let's assume the date's format is yyyy/MM/dd, which is not a standard format for Gson. The following code examples show how to use scala. This is another json pretty print tutorial that we want to introduce with you. You can also nest arrays and objects, allowing you to create. 前面一篇文章我介绍了Gson的解析的基本方法。但我们在享受Gson解析的高度封装带来的便利时,有时可能会遇到一些特殊情况,比如json数据中的字段key是动态可变的时候,由于Gson是使用静态注解的方式来设置实体对象的,因此我们很难直接对返回的类型来判断。. These examples are extracted from open source projects. The method JSON. Its main strength is that it implements a bidirectional mapping between JSON data and the most important R data types. toJson() – Java object to JSON Gson gson = new Gson(); // 1. BOOLEAN — a JSON boolean value; NULL — a JSON null; END_DOCUMENT — ehe end of the JSON stream. parse() can do other things too, such as allowing callback functions to do their own custom conversions of certain values. com is a collection of JSON related content, links, and general awesomeness hand selected by the good people of the Web. ESJ is a JSON mapper for C++ with modest compiler requirements (No C++11) and zero reliance on 3 rd party libraries. 선택적으로, reviver 함수를 인수로 전달할 경우, 결과를 반환하기 전에 변형할 수 있습니다. LinkedTreeMap。. Even the date string must be found within the JSON string. A json object can be easily converted to a string and vice-versa. I am currently working on an android project that requires me to invoke a web service that will return me a json file. In my project, the JSON file contained properties information to be used inside the application. parse() function:. If you are familiar with Custom API, please consider to integrate a Custom API with Flow. Thus saving you time and effort. json --players player1 player2 player3. Java GSON: Getting the list of all keys under a JSONObject. The main classes are: org. JSON format uses key-value pairs to describe data. com is a collection of JSON related content, links, and general awesomeness hand selected by the good people of the Web. Following is an example to read a. The API provides token for each JSON object. 在web项目中经常会用到json数据(如:struts2处理请求返回json数据给jsp解析),因此,JSONObject对象是必备的,这时就需要引入相关的jar包了。. This tutorial will cover how to fetch and parse JSON from a remote server on Android. The interface javax. json对象:json中对象(object)以{开始, 以}结束. 浅谈Gson和FastJson解析JSON JSON定义和特点 定义:JSON(JavaScript Object Notation) 是一种轻量级 的数据交换格式 特点: 1、JSON采用完全独立于语言的文本格式 2、JavaScript的一个子集 3、易于人阅读和编写,同时也易于机器解析和生成 Confidential ? 2013 iSoftStone Holdings Limited. If I parse this string with additional two backslashes - it works, but there is :\\ in value. In this tutorial, we will see how to use JSON. As a data-exchange format, it is widely used in web programming. And use JSONObject to parse the json string, then display the parsed out string in text view. Second Method: If your JSON keys and structure is not subject to change then you can create a wrapper class and deserialize your JSON directly into it, but since the class names in apex cant contains colon and variable names cant contain hyphen, you would have to replace those characters first, with some other characters in initial JSON sring. There has been a number of great libraries for this, but it is quite refreshing to see a fully-supported solution that is easy to adopt but also provides the customization you need to encode and decode complex scenarios. So what I want to achieve: get json object, which has all 5 Products. com" esta bajo una licencia Creative Commons Reconocimiento-NoComercial-CompartirIgual 3. so create an salobject and add key/value pairs. JSON を変換する parse と stringify メソッドの使い方についてです。 JSON. Freshbyte labs is aimed at providing android tutorials centered around json parsing. JSON Attributes - Key Value Pairs: JSON attributes are represented as key value pairs something similar to associative arrays. For an example of how these class methods are used to parse an object from a JSON string and convert it into a JsonObject object, update the name/value pairs the object contains, and then serialize the updated JsonObject object as a JSON string, see Using JavaScript Object Notation (JSON). Remember, this option to have multiple names is limited to deserialization. We are going to write a sample program “read_json. NET’s LINQ to JSON to. The following are Jave code examples for showing how to use parse() of the com. String json = gson. How To Compare JSON with Java Using Google GSON Library In this article I am going to explain how to compare JSON with JAVA then iterate them as key-value. The empty function under Workflow Definition Language would work with the NULL value, but for other functions, not working. Here in this article, we are discussing how to to parse and write JSON with Google’s Gson using a conciser and easier syntax. com" esta bajo una licencia Creative Commons Reconocimiento-NoComercial-CompartirIgual 3. In the above JSON response, for JSON object name “ver” the variable name should be defined as “ver”, private String ver; The Retrofit GSON converter takes care of converting the JSON objects and store it in our model class. See the JSON web site and the JSON RFC for more information about JSON. BSON [bee · sahn], short for Bin­ary JSON, is a bin­ary-en­coded seri­al­iz­a­tion of JSON-like doc­u­ments. Another key difference is the addressing of values. Register an InstanceCreator with Gson for this type may fix this problem. You will need to read and parse it from files, though, and that's why you set up that distros. Recursively parsing JSON response using GSON. Select Expression (experimental) Tools. // node mktm. I have created a domain class Product which maps the JSON response. The numbers in the table below specifies the first browser version that fully supports the JSON. The implementation of all these examples and code snippets can be found in my github project – this is an Eclipse based project, so it should be easy to import and run as it is. And jsonlint says it's legal. This is useful when the JSON data contains keys that are keywords. In that case, use #3: dictionary of key / value pairs. I am trying to figure out how to use JSON. Parsing Nested JSON Records in Python. This annotation be used at field or class level to specify the Gson TypeAdapter for serializing or deserializing. xml, substituting the version number for the latest & greatest release (see the download page for the latest versions). java,json,gson This question already has an answer here: Dealing with randomly generated and inconsistent JSON field/key names using GSON 2 answers I have a particular situation where I am retrieving a list of Objects which have unique Ids as their keys, and they also have nested objects which also have Parse nested Json with GSON. The key is the name of a JSON attribute (country code), and the value is the value of the JSON attribute (which is a JSON object holding information about the country). JSON技术的调研报告. Home » Java » Unable to generate key value pairs from Json String that contains colon in value Unable to generate key value pairs from Json String that contains colon in value Posted by: admin July 23, 2018 Leave a comment. 前面一篇文章我介绍了Gson的解析的基本方法。但我们在享受Gson解析的高度封装带来的便利时,有时可能会遇到一些特殊情况,比如json数据中的字段key是动态可变的时候,由于Gson是使用静态注解的方式来设置实体对象的,因此我们很难直接对返回的类型来判断。. the json key value is not static, it will dynamically change. Another Value can then be set to this one by assignment. You can vote up the examples you like. LinkedTreeMap while parsing a json string to a JsonObject. Parsing JSON with Gson. JsonElement.