要实现这个功能,首先就要知道如何通过Http协议访问网络,向网络发送请求,其次了解如何解析JSON或者XML文件。
1.我的身份证查询接口是在聚合数据申请的,完成认证后,你会得到一个KEY,这在之后会用到。
2.创建布局文件
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<EditText
android:id="@+id/input_id"
android:layout_width="0dp"
android:layout_weight="1"
android:singleLine="true"
android:hint="请输入身份证"
android:layout_height="wrap_content" />
<Button
android:onClick="search"
android:text="查询"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:id="@+id/show_reason"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<TextView
android:id="@+id/show_area"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<TextView
android:id="@+id/show_sex"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<TextView
android:id="@+id/show_birthday"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
</LinearLayout>
3.MainActivity.java
public class MainActivity extends AppCompatActivity {
private EditText input_id;
TextView show_area,show_sex,show_bitrhday,show_reason;
public static final String LOG_TAG = MainActivity.class.getSimpleName();
public static final String INFO_URL ="http://apis.juhe.cn/idcard/index?cardno=";
public static final String INPUT_URL_M="&dtype=json&key=ce51f9256e1280e5885ca20e4ac50b29";
String area;
String sex;
String birthday;
int resultcode;
String reason;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
input_id = (EditText)findViewById(R.id.input_id);
show_area = (TextView)findViewById(R.id.show_area);
show_sex = (TextView)findViewById(R.id.show_sex);
show_bitrhday = (TextView)findViewById(R.id.show_birthday);
show_reason= (TextView)findViewById(R.id.show_reason);
}
public void search(View view){
makeHttpRequest();
show_area.setText("");
show_sex.setText("");
show_reason.setText("");
show_bitrhday.setText("");
}
//网络连接
private void makeHttpRequest(){
//开启线程来发起网络请求
new Thread(new Runnable() {
@Override
public void run() {
HttpURLConnection connection = null;
BufferedReader reader = null;
String id = input_id.getText().toString();
try {
URL url = new URL(INFO_URL+id+INPUT_URL_M);
connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("GET");
connection.setReadTimeout(8000);
connection.setConnectTimeout(8000);
InputStream in = connection.getInputStream();
reader = new BufferedReader(new InputStreamReader(in));
StringBuilder response = new StringBuilder();
String line;
while ((line =reader.readLine())!=null){
response.append(line);
}
showResponse(response.toString());
} catch (Exception e) {
e.printStackTrace();
} finally {
if (reader!=null){
try {
reader.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if (connection!=null){
connection.disconnect();
}
}
}
}).start();
}
private void showResponse(final String s) {
runOnUiThread(new Runnable() {
@Override
public void run() {
FunctionJson(s);
}
});
}
/**
* 解析JSON数据
* @param data
*/
private void FunctionJson(String data){
try {
JSONObject jsonObject = new JSONObject(data);
resultcode = jsonObject.optInt("resultcode");
JSONObject jsonObject2 = jsonObject.getJSONObject("result");
area = jsonObject2.optString("area").toString();
sex = jsonObject2.optString("sex").toString();
birthday = jsonObject2.optString("birthday").toString();
reason = jsonObject.optString("reason").toString();
} catch (JSONException e) {
e.printStackTrace();
}
if (resultcode==200){
show_area .setText("户籍:"+area);
show_sex.setText("性别:"+sex);
show_bitrhday.setText("出生年月:"+birthday);
show_reason.setText("查询成功");
}else{
show_reason.setText("查询失败,请输入正确的身份证号");
}
}
}
最终效果: