Based on the provided json, it seems that the class structure would look something like this (...yes, your json cannot be parsed into your FooBar class directly. This is because the json indicates id as a key, whereas the FooBar class includes id as a member variable. Therefore, they are not directly convertible) :
class FooBar {
public String foo;
public String bar;
};
class FooBarObject {
public HashMap<String, FooBar> blabla;
public void setBlabla(HashMap<String, FooBar> blabla) {
this.blabla = blabla;
}
public HashMap<String, FooBar> getBlabla() {
return blabla;
}
};
This code above serves as an illustration.
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.ObjectMapper;
import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
/**
* Hello world!
*/
class FooBar {
public String foo;
public String bar;
};
class FooBarObject {
public HashMap<String, FooBar> blabla;
public void setBlabla(HashMap<String, FooBar> blabla) {
this.blabla = blabla;
}
public HashMap<String, FooBar> getBlabla() {
return blabla;
}
};
public class App {
static String target = ""
+ "{"
+ " \"blabla\": {"
+ " \"1\": {"
+ " \"foo\": \"foo1\","
+ " \"bar\": \"bar1\""
+ " },"
+ " \"22\": {"
+ " \"foo\": \"foo22\","
+ " \"bar\": \"bar22\""
+ " }"
+ " }"
+ "}";
public static void main(String[] args) throws Exception {
FooBarObject blabla = new FooBarObject();
HashMap map = new HashMap<String, FooBar>();
map.put("1", new FooBar());
map.put("22", new FooBar());
blabla.setBlabla(map);
ObjectMapper mapper = new ObjectMapper();
String json = mapper.writeValueAsString(blabla);
System.out.println("--- BEGIN ---");
System.out.println(json);
System.out.println("--- END ---");
blabla = mapper.readValue(target, FooBarObject.class);
System.out.println("--- BEGIN ---");
for ( Map.Entry<String, FooBar> entry : blabla.blabla.entrySet() ) {
String internal = mapper.writeValueAsString(entry.getValue());
System.out.println(entry.getKey() + ": " + internal);
}
System.out.println("--- END ---");
}
}
However, there might be an issue already present... Are you sure you want to use an Array instead?
{
"blabla": [
"1": {
"foo": "foo1",
"bar": "bar1"
},
"22": {
"foo": "foo22",
"bar": "bar22"
}
]
}