Convert object to map in java

Question

how I can convert Object to Map<String, String> where key is obj.parameter.name and value is obj.parameter.value

for exaple: Object obj = new myObject("Joe", "Doe"); convert to Map with keys: name, surname and values: Joe, Doe.

Answer 1

Apart from the trick solution using reflection, you could also try jackson with one line as follows:

objectMapper.convertValue(o, Map.class);

---

A test case:

    @Test
    public void testConversion() {
        User user = new User();
        System.out.println(MapHelper.convertObject(user));
    }

    @Data
    static class User {
        String name = "Jack";
        boolean male = true;
    }


// output: you can have the right type normally
// {name=Jack, male=true}