将 json 中的字符串数组转换为 java 中的普通字符串数组

Question

Here is the response from web service:

{"courses":["Bca Graphics","OS","DBMS","dnn"]}

I want to parse the courses array to Java String array? I tried, but I amnot able to find a solution.

Answer 1

Using org.json.JSONObject , you can do something like this:

String jsonStr = "{\"courses\":[\"Bca Graphics\",\"OS\",\"DBMS\",\"dnn\"]}";

JSONArray jsonArray = new JSONObject(jsonStr).getJSONArray("courses");
List<String> strings = jsonArray.toList().stream()
            .map(Object::toString)
            .collect(Collectors.toList());

Answer 2

You can use Gson here.

String inputJson = "{\"courses\":[\"Bca Graphics\",\"OS\",\"DBMS\",\"dnn\"]}";
Gson gSon = new GsonBuilder().setFieldNamingPolicy(FieldNamingPolicy.IDENTITY).create();
MyPojo myPojo = gSon.fromJson(inputJson, MyPojo.class);
System.out.println(myPojo.getCourses());

POJO

public class MyPojo {
    public List<String> courses;
    public List<String> getCourses() {
        return courses;
    }
    public void setCourses(List<String> courses) {
        this.courses = courses;
    }
}