android 利用Gson生成json数据

javaBean类：

public class JsonBean {    /**     * entityData : {"baiduLat":31.5161941,"companyCode":"001","personId":"ry170614160142","baiduLng":121.26046038}     */    private EntityDataBean entityData;    public EntityDataBean getEntityData() {        return entityData;    }    public void setEntityData(EntityDataBean entityData) {        this.entityData = entityData;    }    public static class EntityDataBean {        /**         * baiduLat : 31.5161941         * companyCode : 001         * personId : ry170614160142         * baiduLng : 121.26046038         */        private double baiduLat;        private String companyCode;        private String personId;        private double baiduLng;        public double getBaiduLat() {            return baiduLat;        }        public void setBaiduLat(double baiduLat) {            this.baiduLat = baiduLat;        }        public String getCompanyCode() {            return companyCode;        }        public void setCompanyCode(String companyCode) {            this.companyCode = companyCode;        }        public String getPersonId() {            return personId;        }        public void setPersonId(String personId) {            this.personId = personId;        }        public double getBaiduLng() {            return baiduLng;        }        public void setBaiduLng(double baiduLng) {            this.baiduLng = baiduLng;        }    }}

MainActivity:

public class MainActivity extends AppCompatActivity {    private static final String TAG = "TAG";    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        initData();    }    private void initData() {        JsonBean jsonBean = new JsonBean();        JsonBean.EntityDataBean bean = new JsonBean.EntityDataBean();        bean.setBaiduLat(31.5161941);        bean.setBaiduLng(121.26046038);        bean.setCompanyCode("001");        bean.setPersonId("ry170614160142");        jsonBean.setEntityData(bean);        String json = new Gson().toJson(jsonBean);        Log.e(TAG, "json==="+json );    }}

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