android--使用插件GsonFormat解析Json

Json是一种轻量级的数据交换格式,Json数据作为目前网络中最主流的数据传输格式之一,应用也是十分的广泛,下面,我们就来讲解一下怎么解析Json吧!

第一步

首先,我们在解析Json之前,我们要先导包,

因为我创建的Moudle叫做evening,所以我们就找到build.gradle(Module:evening)

然后,将:compile 'com.google.code.gson:gson:2.8.2'

复制到

 

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    compile 'com.google.code.gson:gson:2.8.2'   <----没错,就是这里
    implementation 'com.android.support:appcompat-v7:27.1.1'
    implementation 'com.android.support.constraint:constraint-layout:1.1.0'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.2'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
}

一定要注意:粘贴完之后,右上角会出来一个 Sync now 一定要点击哦!

然后我们就开始下一步:下载插件:

左上角File--->Settings--->Plugins 搜索GsonFormat

然后先把项目关闭再重新打开,插件就加载好了!

第二步

里新建一个Java Class(son就是我已经建好的)

然后打开son Alt+s会弹出一个小框,把要解析的Json复制到里面

然后点ok,点确认

然后你就会发现自动生成了许多代码

然后 在MainActivity中调用

 

public class MainActivity extends AppCompatActivity {

    String str = "{\"status\":\"ok\",\"paramz\":{\"feeds\":[{\"id\":299063,\"oid\":288331,\"category\":\"article\",\"data\":{\"subject\":\"上海男子称劝架被戳瞎眼寻证人\",\"summary\":\"近日，上海地铁世纪大道站出站口贴出一张“寻找目击证人”的告示。\",\"cover\":\"/Attachs/Article/288331/2a6dd034cca6434b9eae169c96d5c267_padmini.JPG\",\"pic\":\"\",\"format\":\"txt\",\"changed\":\"2015-09-19 19:42:25\"}},{\"id\":299038,\"oid\":288315,\"category\":\"article\",\"data\":{\"subject\":\"福建一干部驾车连撞3人后逃逸\",\"summary\":\"华安县一名党政干部在驾车连撞3人后逃逸，事发6小时后才向警方投案自首。\",\"cover\":\"/Attachs/Article/288315/b6e86bb108c84332821263bc93369abf_padmini.JPG\",\"pic\":\"\",\"format\":\"txt\",\"changed\":\"2015-09-19 18:03:06\"}},{\"id\":299036,\"oid\":288313,\"category\":\"article\",\"data\":{\"subject\":\"中学防空演练致学生住院\",\"summary\":\"截至目前，仍有学生住院治疗，部分吸入烟尘较少的、反应较轻的学生已经出院。\",\"cover\":\"/Attachs/Article/288313/59232ee8363d440592d71bb61aa31cef_padmini.JPG\",\"pic\":\"\",\"format\":\"txt\",\"changed\":\"2015-09-19 19:09:51\"}},{\"id\":299035,\"oid\":288312,\"category\":\"article\",\"data\":{\"subject\":\"惯偷被抓后自称刘谦高徒\",\"summary\":\"惯偷蒙某以草帽当掩护，从轮渡“转战”到南普陀，专找游客下手。\",\"cover\":\"/Attachs/Article/288312/28ce42849c0c47d48ae646912e2b20bb_padmini.JPG\",\"pic\":\"\",\"format\":\"txt\",\"changed\":\"2015-09-19 17:51:14\"}},{\"id\":299033,\"oid\":288311,\"category\":\"article\",\"data\":{\"subject\":\"男子偷拍被罚赔款 报警求退款\",\"summary\":\"经过近2个小时的调解和教育，该男子再次向女大学生道歉。\",\"cover\":\"/Attachs/Article/288311/f756bcd84b674ce1bb10a9e10145a680_padmini.JPG\",\"pic\":\"\",\"format\":\"txt\",\"changed\":\"2015-09-19 17:47:18\"}},{\"id\":299027,\"oid\":288309,\"category\":\"article\",\"data\":{\"subject\":\"台北老夫妇花60万买墓地不能用\",\"summary\":\"去年老先生因病过世，在下葬前，突然发现这块墓地属于农牧用地，没办法下葬。\",\"cover\":\"/Attachs/Article/288309/cbcb37310f0c450f964f41aac1279935_padmini.JPG\",\"pic\":\"\",\"format\":\"txt\",\"changed\":\"2015-09-19 17:37:41\"}},{\"id\":299008,\"oid\":288298,\"category\":\"article\",\"data\":{\"subject\":\"宁波集体婚礼地铁当“婚车”\",\"summary\":\"19日，宁波轨道交通2号线一期即将试运营之际，一场特别的公益集体婚礼举行\",\"cover\":\"/Attachs/Article/288298/e108df21cb75452890f1a608b1c5181d_padmini.JPG\",\"pic\":\"\",\"format\":\"txt\",\"changed\":\"2015-09-19 17:13:25\"}},{\"id\":299005,\"oid\":288294,\"category\":\"article\",\"data\":{\"subject\":\"4女子离家房子被倒卖蜗居楼道\",\"summary\":\"北京市公安局朝阳分局经侦大队已受理崔文花的报案，目前该案正在调查中。\",\"cover\":\"/Attachs/Article/288294/cee8182e731a4240816e62c162a30a91_padmini.JPG\",\"pic\":\"\",\"format\":\"txt\",\"changed\":\"2015-09-19 17:48:19\"}},{\"id\":299003,\"oid\":288292,\"category\":\"article\",\"data\":{\"subject\":\"纽约女子产极低概率同卵三胞胎\",\"summary\":\"据称，自然受孕并产下同卵三胞胎的概率小到百万分之一。\",\"cover\":\"/Attachs/Article/288292/c3456fe5f50a4f44910c3b41479d909e_padmini.JPG\",\"pic\":\"\",\"format\":\"txt\",\"changed\":\"2015-09-19 17:00:43\"}},{\"id\":298999,\"oid\":288288,\"category\":\"article\",\"data\":{\"subject\":\"大妈火车上脱鞋引发互殴\",\"summary\":\"一位中年大姐脱鞋产生异味，引起对面的年轻女子不满，双方竟然大打出手。\",\"cover\":\"/Attachs/Article/288288/61ce514a12ab4782936bea0a4abecee1_padmini.JPG\",\"pic\":\"\",\"format\":\"txt\",\"changed\":\"2015-09-19 16:55:41\"}},{\"id\":298998,\"oid\":288287,\"category\":\"article\",\"data\":{\"subject\":\"上海男子街头持刀砍伤4名路人\",\"summary\":\"据网友爆料称，浦东张江一男子持刀伤人，4人被砍伤送医救治。\",\"cover\":\"/Attachs/Article/288287/6e74c69a400d4055b6f9070bf229b5f5_padmini.JPG\",\"pic\":\"\",\"format\":\"txt\",\"changed\":\"2015-09-19 16:50:33\"}},{\"id\":298997,\"oid\":288286,\"category\":\"article\",\"data\":{\"subject\":\"男子盗窃后\\\"监视\\\"警察破案被抓\",\"summary\":\"接到客栈报案后，邛崃刑侦大队刑警迅速赶到现场。\",\"cover\":\"/Attachs/Article/288286/b62950e9aff64bc7972fbbcf25ca1ce4_padmini.JPG\",\"pic\":\"\",\"format\":\"txt\",\"changed\":\"2015-09-19 16:46:59\"}},{\"id\":298996,\"oid\":288285,\"category\":\"article\",\"data\":{\"subject\":\"南京一男子闹市仿杰克逊热舞\",\"summary\":\"据围观市民反映，该男子曾在其他地段有过同样举动，疑似患有精神疾病。\",\"cover\":\"/Attachs/Article/288285/760f5a4e8a3a4cb997be165361f40fbf_padmini.JPG\",\"pic\":\"\",\"format\":\"txt\",\"changed\":\"2015-09-19 16:41:41\"}},{\"id\":298989,\"oid\":288274,\"category\":\"article\",\"data\":{\"subject\":\"城管协管员喷水驱赶乞讨老人\",\"summary\":\"相关部门就此解释，城管协管员是不得以才出此下策。\",\"cover\":\"/Attachs/Article/288274/77e034fbd53148c8b0024dce2fd74a3f_padmini.JPG\",\"pic\":\"\",\"format\":\"txt\",\"changed\":\"2015-09-19 16:03:12\"}},{\"id\":298987,\"oid\":288273,\"category\":\"article\",\"data\":{\"subject\":\"哲学硕士网恋被假女友骗70万\",\"summary\":\"其实“她”只是个小学文化的男人，一人饰四角，把重点大学硕士骗得团团转。\",\"cover\":\"/Attachs/Article/288273/776da3e2b8084fb7804b7da1b48e8703_padmini.JPG\",\"pic\":\"\",\"format\":\"txt\",\"changed\":\"2015-09-19 15:57:30\"}},{\"id\":298963,\"oid\":288260,\"category\":\"article\",\"data\":{\"subject\":\"大姐脱鞋熏到女子 火车上互殴\",\"summary\":\"一位中年大姐脱鞋产生异味，引起对面的年轻女子不满，双方大打出手。\",\"cover\":\"/Attachs/Article/288260/857f0347a68e4a24bc9d05564f715584_padmini.JPG\",\"pic\":\"\",\"format\":\"txt\",\"changed\":\"2015-09-19 15:15:34\"}},{\"id\":298962,\"oid\":288258,\"category\":\"article\",\"data\":{\"subject\":\"四川一公交太破雨天需打伞开车\",\"summary\":\"市民爆料称，南充901路公交司机打着伞开车，真佩服司机的敬业精神。\",\"cover\":\"/Attachs/Article/288258/81ddda6bccd9424b800d4320dc23ff7e_padmini.JPG\",\"pic\":\"\",\"format\":\"txt\",\"changed\":\"2015-09-19 15:13:04\"}},{\"id\":298950,\"oid\":288249,\"category\":\"article\",\"data\":{\"subject\":\"2女生被撞死 母亲路中抱紧尸体\",\"summary\":\"福建泉州，两名初中女生上学路上被撞身亡，司机逃逸被逼停。\",\"cover\":\"/Attachs/Article/288249/a169f8f3488c43fea756228f3f9c34af_padmini.JPG\",\"pic\":\"\",\"format\":\"txt\",\"changed\":\"2015-09-19 14:55:06\"}},{\"id\":298949,\"oid\":288248,\"category\":\"article\",\"data\":{\"subject\":\"宁波轨交集体婚礼 地铁当婚车\",\"summary\":\"地铁车厢当婚车，梁祝公园扮婚房,一场特别的公益集体婚礼在宁波举行。\",\"cover\":\"/Attachs/Article/288248/250078f30b9a43e399e3f7c53012034b_padmini.JPG\",\"pic\":\"\",\"format\":\"txt\",\"changed\":\"2015-09-19 14:52:42\"}},{\"id\":298943,\"oid\":288247,\"category\":\"article\",\"data\":{\"subject\":\"南京苹果直营店果粉彻夜排队\",\"summary\":\"9月19日上午，苹果南京首家直营店即将开业，果粉彻夜排队守候。\",\"cover\":\"/Attachs/Article/288247/dd4ee3bbaeb343f59c1bd125808f530d_padmini.JPG\",\"pic\":\"\",\"format\":\"txt\",\"changed\":\"2015-09-19 14:48:44\"}}],\"PageIndex\":1,\"PageSize\":20,\"TotalCount\":27860,\"TotalPage\":1393}}";
    private TextView tv;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        tv = findViewById(R.id.tv);
        Gson gson = new Gson();
        son son = gson.fromJson(str, son.class);
        List<com.text.evening.son.ParamzBean.FeedsBean> feeds = son.getParamz().getFeeds();
        com.text.evening.son.ParamzBean.FeedsBean feedsBean = feeds.get(1);
        com.text.evening.son.ParamzBean.FeedsBean.DataBean data = feedsBean.getData();
        String changed = data.getChanged();
        tv.setText(changed);

str里面放的是需要解析的字符串,json解析后的结果都是字符串类型的哦!

然后json就解析好啦!