Class JsonParser

java.lang.Object
com.google.gson.JsonParser
public final class JsonParser extends Object
A parser to parse JSON into a parse tree of JsonElements.

The JSON data is parsed in lenient mode.

Here's an example of parsing from a string: 

String json = "{\"key\": \"value\"}";
JsonElement jsonElement = JsonParser.parseString(json);
JsonObject jsonObject = jsonElement.getAsJsonObject();

It can also parse from a reader: 

try (Reader reader = new FileReader("my-data.json", StandardCharsets.UTF_8)) {
  JsonElement jsonElement = JsonParser.parseReader(reader);
  JsonObject jsonObject = jsonElement.getAsJsonObject();
}

If you want to parse from a JsonReader for more customized parsing requirements, the following example demonstrates how to achieve it: 

String json = "{\"skipObj\": {\"skipKey\": \"skipValue\"}, \"obj\": {\"key\": \"value\"}}";
try (JsonReader jsonReader = new JsonReader(new StringReader(json))) {
  jsonReader.beginObject();
  while (jsonReader.hasNext()) {
    String fieldName = jsonReader.nextName();
    if (fieldName.equals("skipObj")) {
      jsonReader.skipValue();
    } else {
      JsonElement jsonElement = JsonParser.parseReader(jsonReader);
      JsonObject jsonObject = jsonElement.getAsJsonObject();
    }
  }
  jsonReader.endObject();
}
Since:
1.3
Author:
Inderjeet Singh, Joel Leitch