java解析json字符串，多层解析

来源：互联网发布：百胜ipos是什么数据库编辑：程序博客网时间：2024/05/02 11:27

json泛型如下

{    "code": 1,    "message": "查询成功",    "data": [        {            "type": 1,            "question": "地层压力与同井深的淡水静液压力之比称为地层的（）。",            "answer": "1",            "id": 1,            "description": "题目描述",            "answers": [                {                    "isCorrect": "1",                    "answer_name": "A的选项内容"                },                {                    "isCorrect": "0",                    "answer_name": "B的选项内容"                },                {                    "isCorrect": 0,                    "answer_name": "C的选项内容"                },                {                    "isCorect": "0",                    "answer_name": "D的选项内容"                }            ]        },        {            "type": 1,            "question": "起钻时，产生的抽吸压力导致井底压力（）。",            "answer": "1",            "id": 1,            "description": "题目描述",            "answers": [                {                    "isCorrect": 1,                    "answer_name": "A的选项内容"                },                {                    "isCorrect": 0,                    "answer_name": "B的选项内容"                },                {                    "isCorrect": 0,                    "answer_name": "C的选项内容"                },                {                    "isCorrect": 0,                    "answer_name": "D的选项内容"                }            ]        }    ]}

导入下面这几个jar包

如果没有可以到小编的资源中下载名叫json_jar 点击下载

commons-beanutils.jar

commons-collections.jar

commons-lang-2.6.jar

commons-logging-1.0.4.jar

ezmorph-1.0.6.jar

json-lib-2.4-jdk15.jar

java解析测试源码

import java.util.Iterator;import net.sf.json.JSONArray;import net.sf.json.JSONObject;public class hhao {@SuppressWarnings("unchecked")public static void main(String[] args) {String jsonStr = "{\"code\":1,\"message\": \"查询成功\",\"data\": [{\"type\": 1,\"question\": \"题目名称题目名称题目名称题目1111111111111111111111111\",\"answer\": \"1\",\"id\":1,\"description\": \"题目描述\",\"answers\": [{\"isCorrect\": 1,\"answer_name\": \"A的选项内容\"},{\"isCorrect\": 0,\"answer_name\": \"B的选项内容\"},{\"isCorrect\": 0,\"answer_name\": \"C的选项内容\"},{\"isCorrect\": 0,\"answer_name\": \"D的选项内容\"}]},{\"type\": \"1\",\"question\": \"题目名称题目名称题目名称2222222222222222222222222222\",\"answer\": \"1\",\"id\": 1,\"description\": \"题目描述\",\"answers\": [{\"isCorrect\": 1,\"answer_name\": \"A的选项内容\"},{\"isCorrect\": 0,\"answer_name\": \"B的选项内容\"},{\"isCorrect\": 0,\"answer_name\": \"C的选项内容\"},{\"isCorrect\": 0,\"answer_name\": \"D的选项内容\"}]}]}";JSONObject job = JSONObject.fromObject(jsonStr);System.out.println("------1----->"+job.toString());JSONArray jArray = job.getJSONArray("data");Iterator<JSONArray> itr = jArray.iterator();while (itr.hasNext()) {JSONObject temp = JSONObject.fromObject(itr.next());temp.getInt("id");temp.getInt("type");temp.getString("question");System.out.println("------2----->"+temp.toString());JSONArray janswers = temp.getJSONArray("answers");Iterator<JSONArray> ianswers = janswers.iterator();while (ianswers.hasNext()) {JSONObject tanswers = JSONObject.fromObject(ianswers.next());tanswers.getInt("isCorrect");tanswers.getString("answer_name");System.out.println("------3----->"+tanswers.toString());}}}}

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