我正在尝试让 Android 设备使用 GET 方法发送一些 HTTP 请求。
这是我的代码:
package com.kde.httprequest;
import java.io.IOException;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.ResponseHandler;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.BasicResponseHandler;
import org.apache.http.impl.client.DefaultHttpClient;
import android.app.Activity;
import android.app.ProgressDialog;
import android.os.AsyncTask;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
public class main2 extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final EditText edit1 = (EditText) findViewById (R.id.editText1);
Button btn1 = (Button) findViewById (R.id.button1);
btn1.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
grabURL(edit1.getText().toString());
}
});
}
public void grabURL(String url) {
new GrabURL().execute(url);
}
private class GrabURL extends AsyncTask<String, Void, Void> {
private final HttpClient Client = new DefaultHttpClient();
private String Content;
private String Error = null;
private ProgressDialog Dialog = new ProgressDialog(main2.this);
final TextView text1 = (TextView) findViewById (R.id.textView1);
protected void onPreExecute() {
Dialog.setMessage("Downloading source..");
Dialog.show();
}
protected Void doInBackground(String... urls) {
try {
HttpGet httpget = new HttpGet(urls[0]);
ResponseHandler<String> responseHandler = new BasicResponseHandler();
Content = Client.execute(httpget, responseHandler);
} catch (ClientProtocolException e) {
Error = e.getMessage();
cancel(true);
} catch (IOException e) {
Error = e.getMessage();
cancel(true);
}
return null;
}
protected void onPostExecute(Void unused) {
Dialog.dismiss();
if (Error != null) {
Toast.makeText(main2.this, Error, Toast.LENGTH_LONG).show();
text1.setText(Error);
} else {
Toast.makeText(main2.this, "Source: " + Content, Toast.LENGTH_LONG).show();
text1.setText(Content);
}
}
}
}
我的简单 PHP 测试:
<?php
$a = $_GET['user'];
$b = $_GET['pass'];
if ($a=="usr" && $b=="pass") {
echo "success";
} else {
echo "fail";
}
?>
发送到此 URL 时,我的代码运行顺利:
digitalzone-btm.com/test2.php?user=user&pass=pass
我的 PHP 的响应是一个字符串,说“成功”或“失败”,这就是我所期望的。
但是我的本地网络服务器使用相同的 Android 应用程序和 PHP 文件得到了不同的响应。
前网址:
http://192.168.1.8/test2.php?user=user&pass=pass
响应正是我的 PHP 源代码。
如何从本地网络服务器获得“成功”或“失败”响应?