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>
MainActivity中的代码:
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.EditText;
import android.widget.TextView;
import org.json.JSONException;
import org.json.JSONObject;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
/**
* 调用聚合数据的第三方API来实现身份证的查询功能
*/
public class MainActivity extends AppCompatActivity {
//首先先为我们在xml中的按钮初始化
private EditText input_id;
TextView show_area, show_sex, show_bitrhday, show_reason;
//设置调试用的Log
public static final String LOG_TAG = MainActivity.class.getSimpleName();
//我们从API中拿到的路径
public static final String INFO_URL = "http://apis.juhe.cn/idcard/index?cardno=";
//API中的KEY
public static final String INPUT_URL_M = "&dtype=json&key=62247af6b09eec4e95e40691334765fa";
//62247af6b09eec4e95e40691334765fa
String area; //地区
String sex; //性别
String birthday; //生日
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() {
//初始化创建HttpURLConnection
HttpURLConnection connection = null;
//初始化创建BufferedReader
BufferedReader reader = null;
//获取Text文本框中的值
String id = input_id.getText().toString();
try {
//将我们的URL传进来
URL url = new URL(INFO_URL + id + INPUT_URL_M);
//使用URL打开链接
connection = (HttpURLConnection) url.openConnection();
//设置网络请求方式
connection.setRequestMethod("GET");
//设置读取时间
connection.setReadTimeout(8000);
//设置链接时间
connection.setConnectTimeout(8000);
//初始化创建InputStream
InputStream in = connection.getInputStream();
//读取内容数据
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");
}
}
}
最后我们在AndroidManifest.xml文件中添加:
<uses-permission android:name="android.permission.INTERNET" />
到此就全部结束了