public<T> TfromJson(String json, Class<T> classOfT)throwsJsonSyntaxException Let’s see how we can use this method to parse our JSONString, passing theJsonObjectclass as the second parameter: Stringjson="{ \"name\": \"Baeldung\", \"java\": true }";JsonObjectconvertedObject=newGson()....
importcom.google.gson.Gson;// 导入Gson库publicclassStringToJsonExample{publicstaticvoidmain(String[]args){Gsongson=newGson();// 创建Gson对象}} 1. 2. 3. 4. 5. 6. 7. 步骤4:使用Gson解析字符串转换为JSON对象 现在,我们可以定义一个JSON格式的字符串,并使用Gson将其转换为Java对象: publicclassStr...
public static<T> JSONObject objectToJson(T obj) throws JSONException, IOException { ObjectMapper mapper = new ObjectMapper(); // Convert object to JSON string String jsonStr = ""; try { jsonStr = mapper.writeValueAsString(obj); } catch (IOException e) { throw e; } return new JSONObject...
Gson is aJavalibrary that can be used to convert Java Objects into their JSON representation. It can also be used to convert a JSON string to an equivalent Java object。 从描述可以看出,Gson 是用于将 Java 对象与 JSON格式字符串数据相互转换的 Java 库。它起初在Google 内部广泛使用在Android平台 ...
public static final int JSON_MAP=0x10004; /** * 将对象转换成Json格式的字符串 * @param object 要转换成Json的对象 * @return String:Json格式的字符串 */ public static String convertObject2Json(Object object) { gson=new Gson(); return gson.toJson(object); ...
/** * Converts Java objects to and from JSON. * */ public abstract class TypeAdapter<T> { public TypeAdapter() { } /** * Writes one JSON value (an array, object, string, number, boolean or null) * for {@code value}. * * @param value the Java object to write. May be nu...
out.println("--->map convert json" + gson.toJson(map)); } } 结果: Gson提供了public T fromJson(String jsonStr,T.class)方法,可以将json字符串转化为Java对象 json字符串转化为JavaBean 代码语言:javascript 代码运行次数:0 运行 AI代码解释 public class SecondTest { @Test public void index() {...
setTimestamp(timestamp); Map<String, Object> convert = JSONUtils.convert(item); System.out.println(convert); } 结果如下: {timestamp=1.668394335647E12} 可以发现,ResultItem类对象在调用Gson.fromJson后,Map中的timestamp字段被转成了科学计数法来表示。 解决办法 一、修改GSON的配置 修改GSON的配置,将...
private static String ConvertStream2Json(InputStream inputStream) { String jsonStr = ""; // ByteArrayOutputStream相当于内存输出流 ByteArrayOutputStream out = new ByteArrayOutputStream(); byte[] buffer = new byte[1024]; int len = 0; ...
Gson is a Java library that can be used to convert Java Objects into their JSON representation. It can also be used to convert a JSON string to an equivalent Java object. Gson can work with arbitrary Java objects including pre-existing objects that you do not have source-code of. ...