I've got a string from an URL which I know is formatted as a JSON but I don't know the field that can change and the size. I try to parse it into a JSON Object to be able to iterate on it. the string look like that:
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I don't succeed to parse it into a JSON could help me?
My best experience with mapping is com.fasterxml.jackson
use to make a Json String from your class (whatever the subclasses, as long as all have appropriate getters and setters, and an empty (public) constructor)
public String toJson() {
final ObjectMapper objectMapper = new ObjectMapper();
objectMapper.configure(SerializationFeature.INDENT_OUTPUT, true);
StringWriter stringEmp = new StringWriter();
try {
objectMapper.writeValue(stringEmp, this);
} catch (IOException e) {
e.printStackTrace();
}
return stringEmp.toString();
}
use
public static ThisClass initFromJson(final String json) {
final ObjectMapper mapper = new ObjectMapper();
ThisClass item;
try {
item = mapper.readValue(json, ThisClass.class);
} catch (IOException e) {
return null;
}
return item;
}
to load the class from the json strings
If you have a Json object and don't have the Java fields for it, you might want to try https://json2csharp.com/code-converters/json-to-pojo to generate the Java code.