How do I find country names from city names in Java?

I want to get the country name of Twitter users

To this end, from < location >, some users wrote the label of their country's name, some wrote the name of their city, and some wrote the name of their country

I want to get the country names of all users What shall I do?

Solution

One way is to use the Google Maps API (although it may be excessive) For example, suppose someone lists their country as "Jakarta" (actually a city in Indonesia) You will then submit the following Maps API requests:

http://maps.googleapis.com/maps/api/geocode/json?address=Jakarta&sensor=false

It returns a JSON object Then, use your favorite JSON parser to parse and extract the "long_name" field of the "address component" field, with the type of "country" In this case, it is "Indonesia"