Read data file JSON to JAVA

Question

I have a problem with JSON; I can not read file from portblock but webblock can be done

This is test.json

{
    "webblock" : ["www.google.com", "www.youtube.com", "www.facebook.com"],
    "portblock" : [{
            "key" : "80",
            "value" : "tcp"
        }, {
            "key" : "70",
            "value" : "udp"
        }
    ]
}

and this is code I used display webblock.

JSONArray msg = (JSONArray) jsonObject.get("webblock");
Iterator<String> iterator = msg.iterator();
while (iterator.hasNext()) {
    System.out.println(iterator.next());
    block_web(iterator.next());
}

Help me to display key and value of portblock.

You are calling `next()` twice in your loop, which means you are getting separate values for each call. Store result of `next()` in String variable and use it instead of `iterator.next()`. — Pshemo, Oct 08 '16 at 11:25

score 2 · Answer 1 · answered Oct 08 '16 at 11:19

Take a look a Jackson. This code should work:

Create the Pojo

public class DomainName {

     List<String> webblock;
     List<PortBlock> portblock;
     //getter and setters
}

public class PortBlock{
     Integer port;
     String value;
     //getter and setters
}

Map to the Domain Class

ObjectMapper objectMapper = new ObjectMapper();
objectMapper.readValue(YOUR_JSON_STRING, DomainName.class)

Read data file JSON to JAVA

1 Answers1