我们可以使用JSONObject类来解析这个JSON对象,并获取它的键和值。 首先,我们需要将JSON字符串转换为JSONObject对象。可以使用JSONObject类的构造方法或者静态方法JSONObject.parse()来实现: StringjsonString="{\"name\": \"John\", \"age\": 30, \"city\": \"New York\"}
在这里,我们使用JsonObject类创建一个新的Json对象。 步骤2:将Json字符串解析为Json对象 // 将Json字符串解析为Json对象StringjsonString="{\"name\": \"Alice\", \"age\": 25}";JsonParserparser=newJsonParser();JsonObjectjsonObject=parser.parse(jsonString).getAsJsonObject(); 1. 2. 3. 4. 在这...
parseJsonObject(json); System.out.println(map); 输出结果: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 { name=A, age=18, address={ country=China, city=Beijing }, contacts={ email=a@example.com, phone=10086 } } 可以看到,JSONObject已经被成功地转换为了具有层级关系的数据结构。
javax.json.stream.JsonGenerator: We can use this to write JSON object to output source in streaming way. javax.json.Json: This is the factory class for creating JSON processing objects. This class provides the most commonly used methods for creating these objects and their corresponding factories...
使用了阿里的 JSON 解析库,在JSON.parseObject(body)解析返回 JSON 字符串时报错:JSONException: can not cast to JSONObject。 不确定问题所在,先是增加jsonObj.containsKey("error_code")来判断是否存在错误码,但这个解析错误是在这个判断之前,所以对当前问题没有帮助。
JsonParserparses JSON using the pull parsing programming model. In this model the client code controls the thread and calls the methodnext()to advance the parser to the next state after processing each element. The parser can generate the following events:START_OBJECT,END_OBJECT,START_ARRAY,END...
import com.alibaba.fastjson.JSONObject; import com.example.study.entity.Student; public class JsonStudy { public static void main(String[] args) { //定义一个student类型的JSON字符串 String json = "{\"name\":\"张三\",\"id\":\"123\",\"age\":18}"; ...
String json = {"phonetype":"N95","cat":"WP"}; try { JSONObject obj = new JSONObject(json); Log.d("My App", obj.toString()); } catch (Throwable t) { Log.e("My App", "Could not parse malformed JSON: \"" + json + "\""); } origin: JessYanCoding/MVPArms CharacterHandl...
The Java API for JSON Processing (JSR 353) provides portable APIs to parse, generate, transform, and query JSON using object model and streaming APIs. The object model API creates a random-access, tree-like structure that represents the JSON data in memory. The tree can then be navigated an...
android.utilJsonParseHelperparseToJsonObject Popular methods of JsonParseHelper Popular in Java Parsing JSON documents to java classes using gson scheduleAtFixedRate (Timer) notifyDataSetChanged (ArrayAdapter) getResourceAsStream (ClassLoader) Pointer (com.sun.jna) An abstraction for a native pointer data...