json格式化

jar包:gson-xxx.jar

 

import com.google.gson.Gson;

import com.google.gson.GsonBuilder;

import com.google.gson.JsonElement;

import com.google.gson.JsonParser;

/**

 * @author henrypoter

 *

 */

public class JsonFormatter {

 

    /**

     * @param args

     */

    public static void main(String[] args) {

        String uglyJSONString = "{\"data1\":100,\"data2\":\"hello\",\"list\":[\"String 1\",\"String 2\",\"String 3\"]}";

        String prettyJsonString = jsonFormatter(uglyJSONString);

        System.out.println("JSON格式化前：");

        System.out.println(uglyJSONString);

        System.out.println("JSON格式化后：");

        System.out.println(prettyJsonString);

 

    }

     

    public static String jsonFormatter(String uglyJSONString){

        Gson gson = new GsonBuilder().setPrettyPrinting().create();

        JsonParser jp = new JsonParser();

        JsonElement je = jp.parse(uglyJSONString);

        String prettyJsonString = gson.toJson(je);

        return prettyJsonString;

    }

 

}

 

 

结果:

JSON格式化前：

{"data1":100,"data2":"hello","list":["String 1","String 2","String 3"]}

JSON格式化后：

{

  "data1": 100,

  "data2": "hello",

  "list": [

    "String 1",

    "String 2",

    "String 3"

  ]

}