Java 将 Json 转换为 List<object><div id="text_translate"><p> 我有一个 json</p><pre> { "name":["A","B"], "class":"Science" }</pre><p> 如何将其转换为学生列表（A，科学）（B，科学）</p><pre> Students { public String name; public String class; }</pre></div></object>

Question

I have a json

{
    "name":["A","B"],
    "class":"Science"
}

How can I convert it to List of Students (A,Science)(B,Science)

Students
{
    public String name;
    public String class;
}

Answer 1

Since class is a Java keyword you can't create a variable with that name. Assuming you're using org.json for handling JSON .

Students{
     public String name;
     public String clazz; // variable name changed
}

Using the above Students class:

String req = "{\"name\":[\"A\",\"B\"],\"class\":\"Science\"}";

JSONObject jsonObject = new JSONObject(req);

JSONArray name = jsonObject.getJSONArray("name");
String aClass = jsonObject.getString("class");
List<Students> studentsList = new ArrayList<>();

for (int i = 0; i < name.length(); i++) {
    Students students = new Students();
    students.setName(name.getString(i));
    students.setClazz(aClass);
    studentsList.add(students);
}

System.out.println(studentsList);

OUTPUT :

[Students(A,Science), Students(B,Science)]