首先添加maven依赖

1 <dependency>2 <groupId>org.json</groupId>3 <artifactId>org.json</artifactId>4 <version>chargebee-1.0</version>5 </dependency>

string转json

1 public static JSONObject strToJson(String str) throws JSONException{2 str = "{\"code\":\"0\",\"msg\":\"success\",\"data\":{\"taskStatus\":1}}";3 JSONObject jsonObj = new JSONObject(str);4 System.out.print(jsonObj + "\n");5 System.out.print(jsonObj.get("code"));6 return jsonObj;7 }