Json数据中同字段不同数据类型的解析

[ ?{ ???"code": 1, ???"data": 33 ?}, ?{ ???"code": 2, ???"data": "string" ?}, ?{ ???"code": 3, ???"data": { ?????"age": 22, ?????"name": "rc" ???} ?}]

package com.why.project.androidcnblogsdemo.model;/** * Created by HaiyuKing * Used 解析data字段分别赋值Integer、String、JsonObject对象数据的JsonObject对象 */public class ParseDataModel { ???private int code; ???private Object data; ???public int getCode() { ???????return code; ???} ???public void setCode(int code) { ???????this.code = code; ???} ???public Object getData() { ???????return data; ???} ???public void setData(Object data) { ???????this.data = data; ???}}

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" ???xmlns:tools="http://schemas.android.com/tools" ???android:orientation="vertical" ???android:layout_width="match_parent" ???android:layout_height="match_parent"> ???<Button ???????android:text="显示JSONObject数据" ???????android:layout_width="wrap_content" ???????android:layout_height="wrap_content" ???????android:id="@+id/btn_show" ???????android:layout_gravity="center_horizontal"/> ???<TextView ???????android:layout_width="match_parent" ???????android:layout_height="wrap_content" ???????android:id="@+id/tv_show" ???????android:hint="此处显示JSONObject数据"/></LinearLayout>

package com.why.project.androidcnblogsdemo.activity;import android.content.Context;import android.os.Bundle;import android.support.v7.app.AppCompatActivity;import android.util.Log;import android.view.View;import android.widget.Button;import android.widget.TextView;import android.widget.Toast;import com.why.project.androidcnblogsdemo.R;import com.why.project.androidcnblogsdemo.model.ParseDataModel;import org.json.JSONArray;import org.json.JSONException;import org.json.JSONObject;import java.io.ByteArrayOutputStream;import java.io.InputStream;import java.util.ArrayList;/** * Created by HaiyuKing * Used 解析data字段分别赋值Integer、String、JsonObject对象数据的JsonObject对象 */public class ParseDataActivity extends AppCompatActivity { ???private static final String TAG = "ParseDataActivity"; ???private Button mShowBtn; ???private TextView mShowTv; ???private ArrayList<ParseDataModel> jsonDataList; ???@Override ???protected void onCreate(Bundle savedInstanceState) { ???????super.onCreate(savedInstanceState); ???????setContentView(R.layout.activity_parsedata); ???????initViews(); ???????initData(); ???????initEvents(); ???} ???private void initViews() { ???????mShowBtn = (Button) findViewById(R.id.btn_show); ???????mShowTv = (TextView) findViewById(R.id.tv_show); ???} ???private void initData() { ???????jsonDataList = new ArrayList<ParseDataModel>(); ???????//从Assets中获取json数据字符串 ???????String jsonData = getStringFromAssert(this,"parseDataJson.json"); ???????Log.e(TAG,"jsonData="+jsonData); ???????//解析json格式的字符串 ???????try { ???????????JSONArray jsonDataArray = new JSONArray(jsonData); ???????????if(jsonDataArray.length() > 0){ ???????????????for(int i=0; i<jsonDataArray.length();i++){ ???????????????????JSONObject jsonDataItemObj = jsonDataArray.getJSONObject(i); ???????????????????ParseDataModel model = new ParseDataModel(); ???????????????????model.setCode(jsonDataItemObj.getInt("code")); ???????????????????model.setData(jsonDataItemObj.get("data")); ???????????????????jsonDataList.add(model); ???????????????} ???????????} ???????} catch (JSONException e) { ???????????e.printStackTrace(); ???????} ???????//方案二，通过Gson解析，不过只能解析出来String类型，其他类型均为Object ???????//https://segmentfault.com/q/1010000002779358// ???????try {// ???????????JSONArray jsonDataArray = new JSONArray(jsonData);// ???????????if(jsonDataArray.length() > 0){// ???????????????for(int i=0; i<jsonDataArray.length();i++){// ???????????????????jsonDataList.add(new Gson().fromJson(jsonDataArray.getString(i),ParseDataModel.class));// ???????????????}// ???????????}//// ???????} catch (JSONException e) {// ???????????e.printStackTrace();// ???????} ???????//http://www.cnblogs.com/zhujiabin/p/4660828.html// ???????Type listType = new TypeToken<LinkedList<ParseDataModel>>(){}.getType();// ???????Gson gson = new Gson();// ???????LinkedList<ParseDataModel> parseDataModelsList = gson.fromJson(jsonData, listType);//// ???????String showResult = "";//// ???????for (Iterator iterator = parseDataModelsList.iterator(); iterator.hasNext();) {// ???????????ParseDataModel model = (ParseDataModel) iterator.next();// ???????????int code = model.getCode();// ???????????Object data = model.getData();// ???????????String dataType = "Object";// ???????????if(data instanceof Integer){// ???????????????data = (Integer)data;// ???????????????dataType = "Integer";// ???????????}else if(data instanceof String){// ???????????????data = (String)data;// ???????????????dataType = "String";// ???????????}else if(data instanceof JSONObject){// ???????????????data = (JSONObject)data;// ???????????????dataType = "JSONObject";// ???????????}// ???????????showResult += "code=" + code + ";data=" + data + "【dataType=" + dataType + "】\n";// ???????}// ???????mShowTv.setText(showResult); ???} ???private void initEvents() { ???????mShowBtn.setOnClickListener(new View.OnClickListener() { ???????????@Override ???????????public void onClick(View v) { ???????????????String showResult = ""; ???????????????//循环获取json数据 ???????????????for(int i = 0;i<jsonDataList.size();i++){ ???????????????????ParseDataModel model = jsonDataList.get(i); ???????????????????int code = model.getCode(); ???????????????????Object data = model.getData(); ???????????????????String dataType = "Object"; ???????????????????if(data instanceof Integer){ ???????????????????????data = (Integer)data; ???????????????????????dataType = "Integer"; ???????????????????}else if(data instanceof String){ ???????????????????????data = (String)data; ???????????????????????dataType = "String"; ???????????????????}else if(data instanceof JSONObject){ ???????????????????????data = (JSONObject)data; ???????????????????????dataType = "JSONObject"; ???????????????????} ???????????????????showResult += "code=" + code + ";data=" + data + "【dataType=" + dataType + "】\n"; ???????????????} ???????????????mShowTv.setText(showResult); ???????????} ???????}); ???} ???/** ????* 访问assets目录下的资源文件，获取文件中的字符串 ????* @param assetsFilePath - 文件的相对路径，例如："listitemdata.txt或者"/why/listdata.txt" ????* @return 内容字符串 ????* */ ???public static String getStringFromAssert(Context mContext, String assetsFilePath) { ???????String content = ""; // 结果字符串 ???????try { ???????????InputStream is = mContext.getResources().getAssets().open(assetsFilePath);// 打开文件 ???????????int ch = 0; ???????????ByteArrayOutputStream out = new ByteArrayOutputStream(); // 实现了一个输出流 ???????????while ((ch = is.read()) != -1) { ???????????????out.write(ch); // 将指定的字节写入此 byte 数组输出流 ???????????} ???????????byte[] buff = out.toByteArray();// 以 byte 数组的形式返回此输出流的当前内容 ???????????out.close(); // 关闭流 ???????????is.close(); // 关闭流 ???????????content = new String(buff, "UTF-8"); // 设置字符串编码 ???????} catch (Exception e) { ???????????Toast.makeText(mContext, "对不起，没有找到指定文件！", Toast.LENGTH_SHORT) ???????????????????.show(); ???????} ???????return content; ???}}