Json數據："{\"UserID\":\"Allen\",\"Dep\":IT,\"QQ\":\"969661314\"}"

通過如下代碼，將此Json數據轉換為Json對象，類似數組一樣，然后通過字段名獲取每一個值：

package com.example.androidjson;import org.json.JSONException; import org.json.JSONObject;import android.support.v7.app.ActionBarActivity; import android.os.Bundle; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.TextView;public class MainActivity extends ActionBarActivity {@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);Button btn=(Button)findViewById(R.id.btnJson);btn.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View arg0) {// TODO Auto-generated method stub String myjson="{\"UserID\":\"Allen\",\"Dep\":IT,\"QQ\":\"969661314\"}";try {JSONObject json=new JSONObject(myjson);String strUserID=json.getString("UserID");String strDep=json.getString("Dep");String strQQ=json.getString("QQ");TextView txtUserID=(TextView)findViewById(R.id.textView1);TextView txtDep=(TextView)findViewById(R.id.textView2);TextView txtQQ=(TextView)findViewById(R.id.textView3);txtUserID.setText(strUserID);txtDep.setText(strDep);txtQQ.setText(strQQ);} catch (JSONException e) {// TODO Auto-generated catch block e.printStackTrace();}}});}@Overridepublic boolean onCreateOptionsMenu(Menu menu) {// Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main, menu);return true;}@Overridepublic boolean onOptionsItemSelected(MenuItem item) {// Handle action bar item clicks here. The action bar will// automatically handle clicks on the Home/Up button, so long// as you specify a parent activity in AndroidManifest.xml.int id = item.getItemId();if (id == R.id.action_settings) {return true;}return super.onOptionsItemSelected(item);} }

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