1.JSONObject
2.JSONArray
在src目录下 新建文件夹 assets
{
"error_code":0,
"reason": "Success",
"result": {
"data": [
{
"context": "灌篮高手",
"hashId": "462sdf462sd4",
"unixtime": 1466238232,
"updatetime": "2012-12-12 12:12:12"
},
{
"context": "数码宝贝",
"hashId": "462sdf462sdf4",
"unixtime": 1466238232,
"updatetime": "2012-13-13 12:12:12"
}
]
}
}
package com.example.testapplication;
import android.content.res.AssetManager;
import android.os.Bundle;
import android.view.View;
import android.widget.Toast;
import androidx.annotation.Nullable;
import androidx.appcompat.app.AppCompatActivity;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.io.IOException;
import java.io.InputStream;
public class JsonDemoActivity extends AppCompatActivity {
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_json2);
}
public void parse(View view){
String json = getJsonString();
try {
JSONObject jsonObject = new JSONObject(json);
JSONObject result = jsonObject.getJSONObject("result");
JSONArray jsonArray = result.getJSONArray("data");
for (int i = 0; i<jsonArray.length();i++){
JSONObject obj = jsonArray.getJSONObject(i);
String content = obj.getString("context");
Toast.makeText(getApplicationContext(), content, Toast.LENGTH_SHORT).show();
}
}catch (JSONException e){
e.printStackTrace();
}
}
// 读取数据
public String getJsonString(){
AssetManager assetManager = getAssets();
InputStream in = null;
try{
in = assetManager.open("jokes.json");
byte[] buffer = new byte[in.available()];
in.read(buffer);
String json = new String(buffer);
return json;
} catch (IOException e) {
e.printStackTrace();
}
return "";
}
}