package com.jingyou.id;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.support.v7.app.AppCompatActivity;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import org.json.JSONException;
import org.json.JSONObject;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
public class MainActivity extends AppCompatActivity implements View.OnClickListener{
private String sex;
private String birthday;
private String address;
private TextView result;
private EditText editText;
private Button button;
private String httpUrl;
private String httpArg;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
editText= (EditText) findViewById(R.id.edit);
result= (TextView) findViewById(R.id.result);
button= (Button) findViewById(R.id.button);
httpUrl = "http://apis.baidu.com/apistore/idservice/id";
httpArg = editText.getText().toString();
//httpArg = "61052619910128001X";
button.setOnClickListener(this);
}
@Override
public void onClick(View v) {
if(v.getId()==R.id.button){
request(httpUrl, httpArg);
}
}
private Handler handler=new Handler(){
public void handleMessage(Message msg){
switch(msg.what){
case 0:
String r= (String) msg.obj;
try{
JSONObject jsonObject=new JSONObject(r);
JSONObject weatherInfo=jsonObject.getJSONObject("retData");
sex=weatherInfo.getString("sex");
birthday=weatherInfo.getString("birthday");
address=weatherInfo.getString("address");
}catch (JSONException e){
e.printStackTrace();
}
result.setText(" "+sex+" "+birthday+" "+address+" "+httpArg);
}
}
};
private void request(final String httpUrl, final String httpArg) {
new Thread(new Runnable() {
@Override
public void run() {
HttpURLConnection connection=null;
try {
URL url = new URL(httpUrl + "?id=" + httpArg);
connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("GET");
connection.setConnectTimeout(8000);
connection.setReadTimeout(8000);
// 填入apikey到HTTP header
connection.setRequestProperty("apikey", "9683743a3bd1ba305d7874f6bc7b5bcf");
connection.connect();
InputStream is = connection.getInputStream();
BufferedReader reader = new BufferedReader(new InputStreamReader(is, "UTF-8"));
String strRead;
StringBuilder sbf=new StringBuilder();
while ((strRead = reader.readLine()) != null) {
sbf.append(strRead);
}
Message message=new Message();
message.what=0;
message.obj=sbf.toString();
handler.sendMessage(message);
} catch (Exception e) {
e.printStackTrace();
}finally {
if(connection!=null){
connection.disconnect();
}
}
}
}).start();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
@Override
public 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();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="100dp"
android:text="请输入身份证号："
android:gravity="center_horizontal"
android:textSize="30sp"/>
<EditText
android:id="@+id/edit"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="30dp"
android:background="#fff"/>
<TextView
android:id="@+id/result"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<Button
android:id="@+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="30dp"
android:layout_gravity="center_horizontal"
android:text="查询"/>
</LinearLayout>
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.jingyou.id" >
<uses-permission android:name="android.permission.INTERNET"/>
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
代码如上，理想情况下输入完身份证号后按下查询按钮，就会在TextView中显示内容，可实际显示null null null
程序也不是很复杂，实在找不出问题所在，求大神指点
