将数据从Android应用程序发送到Php
我在本地网络上的WAMP服务器上运行了一个php表单...但是当我尝试运行该文件时，它会在屏幕截图中显示错误。我正在尝试将数据从我的Android应用程序发送到Php表单。我的Android应用程序在按下“发送”按钮时崩溃了
我确定了：
- WAMP和Android应用都在同一个网络上
- 此外，我尝试直接从Android浏览器访问该URL，它会调出页面，因此URL不应该是一个麻烦
- 我尝试过使用真实的设备并遇到同样的错误。
- 我还在Android Manifest中添加了INTERNET权限！
PHP代码：
<?php
// get the "message" variable from the post request
// this is the data coming from the Android app
$message=$_POST["message"];
// specify the file where we will save the contents of the variable message
$filename="androidmessages.html";
// write (append) the data to the file
file_put_contents($filename,$message."<br />",FILE_APPEND);
// load the contents of the file to a variable
$androidmessages=file_get_contents($filename);
// display the contents of the variable (which has the contents of the file)
echo $androidmessages;
?>
这是Android应用程序代码：
public class HelloWorldActivity extends Activity {
Button sendButton;
EditText msgTextField;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
// load the layout
setContentView(R.layout.main);
// make message text field object
msgTextField = (EditText) findViewById(R.id.msgTextField);
// make send button object
sendButton = (Button) findViewById(R.id.sendButton);
}
// this is the function that gets called when you click the button
public void send(View v)
{
// get the message from the message text box
String msg = msgTextField.getText().toString();
// make sure the fields are not empty
if (msg.length()>0)
{
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("http://192.168.0.40/yourPhpScript.php");
try {
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2);
nameValuePairs.add(new BasicNameValuePair("id", "12345"));
nameValuePairs.add(new BasicNameValuePair("message", msg));
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
httpclient.execute(httppost);
msgTextField.setText(""); // clear text box
} catch (ClientProtocolException e) {
// TODO Auto-generated catch block
} catch (IOException e) {
// TODO Auto-generated catch block
}
}
else
{
// display message if text fields are empty
Toast.makeText(getBaseContext(),"All field are required",Toast.LENGTH_SHORT).show();
}
}
}
编辑1：这是原始代码所需的LogCat
02-10 23:44:06.570: D/dalvikvm(1919): Not late-enabling CheckJNI (already on)
02-10 23:44:06.720: D/dalvikvm(1919): GC_CONCURRENT freed 73K, 10% free 2785K/3092K, paused 13ms+0ms, total 16ms
02-10 23:44:07.550: D/gralloc_goldfish(1919): Emulator without GPU emulation detected.
02-10 23:44:17.428: D/AndroidRuntime(1919): Shutting down VM
02-10 23:44:17.428: W/dalvikvm(1919): threadid=1: thread exiting with uncaught exception (group=0xb0f3e648)
02-10 23:44:17.428: E/AndroidRuntime(1919): FATAL EXCEPTION: main
02-10 23:44:17.428: E/AndroidRuntime(1919): java.lang.IllegalStateException: Could not execute method of the activity
02-10 23:44:17.428: E/AndroidRuntime(1919): at android.view.View$1.onClick(View.java:3633)
02-10 23:44:17.428: E/AndroidRuntime(1919): at android.view.View.performClick(View.java:4240)
02-10 23:44:17.428: E/AndroidRuntime(1919): at android.view.View$PerformClick.run(View.java:17721)
02-10 23:44:17.428: E/AndroidRuntime(1919): at android.os.Handler.handleCallback(Handler.java:730)
02-10 23:44:17.428: E/AndroidRuntime(1919): at android.os.Handler.dispatchMessage(Handler.java:92)
02-10 23:44:17.428: E/AndroidRuntime(1919): at android.os.Looper.loop(Looper.java:137)
02-10 23:44:17.428: E/AndroidRuntime(1919): at android.app.ActivityThread.main(ActivityThread.java:5103)
02-10 23:44:17.428: E/AndroidRuntime(1919): at java.lang.reflect.Method.invokeNative(Native Method)
02-10 23:44:17.428: E/AndroidRuntime(1919): at java.lang.reflect.Method.invoke(Method.java:525)
02-10 23:44:17.428: E/AndroidRuntime(1919): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
02-10 23:44:17.428: E/AndroidRuntime(1919): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
02-10 23:44:17.428: E/AndroidRuntime(1919): at dalvik.system.NativeStart.main(Native Method)
02-10 23:44:17.428: E/AndroidRuntime(1919): Caused by: java.lang.reflect.InvocationTargetException
02-10 23:44:17.428: E/AndroidRuntime(1919): at java.lang.reflect.Method.invokeNative(Native Method)
02-10 23:44:17.428: E/AndroidRuntime(1919): at java.lang.reflect.Method.invoke(Method.java:525)
02-10 23:44:17.428: E/AndroidRuntime(1919): at android.view.View$1.onClick(View.java:3628)
02-10 23:44:17.428: E/AndroidRuntime(1919): ... 11 more
02-10 23:44:17.428: E/AndroidRuntime(1919): Caused by: android.os.NetworkOnMainThreadException
02-10 23:44:17.428: E/AndroidRuntime(1919): at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1133)
02-10 23:44:17.428: E/AndroidRuntime(1919): at libcore.io.BlockGuardOs.connect(BlockGuardOs.java:84)
02-10 23:44:17.428: E/AndroidRuntime(1919): at libcore.io.IoBridge.connectErrno(IoBridge.java:127)
02-10 23:44:17.428: E/AndroidRuntime(1919): at libcore.io.IoBridge.connect(IoBridge.java:112)
02-10 23:44:17.428: E/AndroidRuntime(1919): at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:192)
02-10 23:44:17.428: E/AndroidRuntime(1919): at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:459)
02-10 23:44:17.428: E/AndroidRuntime(1919): at java.net.Socket.connect(Socket.java:842)
02-10 23:44:17.428: E/AndroidRuntime(1919): at org.apache.http.conn.scheme.PlainSocketFactory.connectSocket(PlainSocketFactory.java:119)
02-10 23:44:17.428: E/AndroidRuntime(1919): at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:144)
02-10 23:44:17.428: E/AndroidRuntime(1919): at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:164)
02-10 23:44:17.428: E/AndroidRuntime(1919): at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:119)
02-10 23:44:17.428: E/AndroidRuntime(1919): at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:360)
02-10 23:44:17.428: E/AndroidRuntime(1919): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:555)
02-10 23:44:17.428: E/AndroidRuntime(1919): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487)
02-10 23:44:17.428: E/AndroidRuntime(1919): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:465)
02-10 23:44:17.428: E/AndroidRuntime(1919): at com.diwesh.helloworldactivity.HelloWorldActivity.send(HelloWorldActivity.java:73)
02-10 23:44:17.428: E/AndroidRuntime(1919): ... 14 more
编辑2：从推荐代码更改后的LogCat
02-11 19:28:35.991: D/AndroidRuntime(1945): Shutting down VM
02-11 19:28:35.991: W/dalvikvm(1945): threadid=1: thread exiting with uncaught exception (group=0xb0f16648)
02-11 19:28:35.991: E/AndroidRuntime(1945): FATAL EXCEPTION: main
02-11 19:28:35.991: E/AndroidRuntime(1945): java.lang.IllegalStateException: Could not execute method of the activity
02-11 19:28:35.991: E/AndroidRuntime(1945): at android.view.View$1.onClick(View.java:3633)
02-11 19:28:35.991: E/AndroidRuntime(1945): at android.view.View.performClick(View.java:4240)
02-11 19:28:35.991: E/AndroidRuntime(1945): at android.view.View$PerformClick.run(View.java:17721)
02-11 19:28:35.991: E/AndroidRuntime(1945): at android.os.Handler.handleCallback(Handler.java:730)
02-11 19:28:35.991: E/AndroidRuntime(1945): at android.os.Handler.dispatchMessage(Handler.java:92)
02-11 19:28:35.991: E/AndroidRuntime(1945): at android.os.Looper.loop(Looper.java:137)
02-11 19:28:35.991: E/AndroidRuntime(1945): at android.app.ActivityThread.main(ActivityThread.java:5103)
02-11 19:28:35.991: E/AndroidRuntime(1945): at java.lang.reflect.Method.invokeNative(Native Method)
02-11 19:28:35.991: E/AndroidRuntime(1945): at java.lang.reflect.Method.invoke(Method.java:525)
02-11 19:28:35.991: E/AndroidRuntime(1945): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
02-11 19:28:35.991: E/AndroidRuntime(1945): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
02-11 19:28:35.991: E/AndroidRuntime(1945): at dalvik.system.NativeStart.main(Native Method)
02-11 19:28:35.991: E/AndroidRuntime(1945): Caused by: java.lang.reflect.InvocationTargetException
02-11 19:28:35.991: E/AndroidRuntime(1945): at java.lang.reflect.Method.invokeNative(Native Method)
02-11 19:28:35.991: E/AndroidRuntime(1945): at java.lang.reflect.Method.invoke(Method.java:525)
02-11 19:28:35.991: E/AndroidRuntime(1945): at android.view.View$1.onClick(View.java:3628)
02-11 19:28:35.991: E/AndroidRuntime(1945): ... 11 more
02-11 19:28:35.991: E/AndroidRuntime(1945): Caused by: android.os.NetworkOnMainThreadException
02-11 19:28:35.991: E/AndroidRuntime(1945): at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1133)
02-11 19:28:35.991: E/AndroidRuntime(1945): at libcore.io.BlockGuardOs.connect(BlockGuardOs.java:84)
02-11 19:28:35.991: E/AndroidRuntime(1945): at libcore.io.IoBridge.connectErrno(IoBridge.java:127)
02-11 19:28:35.991: E/AndroidRuntime(1945): at libcore.io.IoBridge.connect(IoBridge.java:112)
02-11 19:28:35.991: E/AndroidRuntime(1945): at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:192)
02-11 19:28:35.991: E/AndroidRuntime(1945): at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:459)
02-11 19:28:35.991: E/AndroidRuntime(1945): at java.net.Socket.connect(Socket.java:842)
02-11 19:28:35.991: E/AndroidRuntime(1945): at org.apache.http.conn.scheme.PlainSocketFactory.connectSocket(PlainSocketFactory.java:119)
02-11 19:28:35.991: E/AndroidRuntime(1945): at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:144)
02-11 19:28:35.991: E/AndroidRuntime(1945): at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:164)
02-11 19:28:35.991: E/AndroidRuntime(1945): at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:119)
02-11 19:28:35.991: E/AndroidRuntime(1945): at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:360)
02-11 19:28:35.991: E/AndroidRuntime(1945): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:555)
02-11 19:28:35.991: E/AndroidRuntime(1945): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487)
02-11 19:28:35.991: E/AndroidRuntime(1945): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:465)
02-11 19:28:35.991: E/AndroidRuntime(1945): at com.diwesh.helloworldactivity.HelloWorldActivity.send(HelloWorldActivity.java:93)
02-11 19:28:35.991: E/AndroidRuntime(1945): ... 14 more
2 个答案:
答案 0 :(得分：0)
我认为这应该适合你，将你的android代码中的http请求更改为
private void startHttpRequest()
{
try
{
new Thread(new Runnable()
{
public void run()
{
// get the message from the message text box
String msg = msgTextField.getText().toString();
// make sure the fields are not empty
if (msg.length()>0)
{
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("http://192.168.0.40/yourPhpScript.php");
try
{
StringEntity se = new StringEntity("id=12345&message="+msg);
httppost.setEntity(se);
HttpResponse response = httpclient.execute(httppost);
msgTextField.setText(""); // clear text box
StatusLine statusLine = response.getStatusLine();
if(statusLine.getStatusCode() == HttpStatus.SC_OK)
{
ByteArrayOutputStream out = new ByteArrayOutputStream();
response.getEntity().writeTo(out);
//* this should be the return from your php script $androidmessages
String responseString = out.toString();
out.close();
}
}
catch (ClientProtocolException e)
{
// TODO Auto-generated catch block
}
catch (IOException e) {
// TODO Auto-generated catch block
}
}
}
}).start();
}
catch(Exception e)
{
}
}
然后将php脚本中的代码更改为
<?php
// get the "message" variable from the post request
// this is the data coming from the Android app
$id=$_REQUEST["id"];
$message=$_REQUEST["message"];
// specify the file where we will save the contents of the variable message
$filename="androidmessages.html";
// write (append) the data to the file
file_put_contents($filename,$message."<br />",FILE_APPEND);
// load the contents of the file to a variable
$androidmessages=file_get_contents($filename);
// display the contents of the variable (which has the contents of the file)
echo $androidmessages;
?>
答案 1 :(得分：0)
首先，请确保您的PHP脚本正确无误。 然后，删除＆＃39; onClick＆＃39;在按钮的XML配置中。 请使用以下代码。它会工作
public class HelloWorldActivity extends Activity {
Button sendButton;
EditText msgTextField;
/**
* Called when the activity is first created.
*/
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// load the layout
setContentView(R.layout.main);
// make message text field object
msgTextField = (EditText) findViewById(R.id.msgTextField);
// make send button object
sendButton = (Button) findViewById(R.id.sendButton);
sendButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// check for empty message
if (msgTextField.getText().toString().trim().length() > 0) {
new sendMessage().execute();
} else {
// display message if text fields are empty
Toast.makeText(HelloWorldActivity.this, "All field are required", Toast.LENGTH_SHORT).show();
}
}
});
}
private class sendMessage extends AsyncTask<String, String, String> {
ProgressDialog dialog;
@Override
protected void onPreExecute() {
super.onPreExecute();
dialog = new ProgressDialog(HelloWorldActivity.this);
dialog.setIndeterminate(true);
dialog.setMessage("Sending Message...");
dialog.setCancelable(false);
dialog.show();
}
@Override
protected String doInBackground(String... params) {
// get the message from the message text box
String msg = msgTextField.getText().toString();
// desired URL
final String mURL = "http://192.168.0.40/yourPhpScript.php";
// Create a new HttpClient and Post Header
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost(mURL);
HttpResponse response;
// Add data
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
nameValuePairs.add(new BasicNameValuePair("id", "12345"));
nameValuePairs.add(new BasicNameValuePair("message", msg));
try {
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
response = httpclient.execute(httppost);
String responseBody = EntityUtils
.toString(response.getEntity());
Log.d("Http Post Response:", responseBody);
} catch (ClientProtocolException e) {
// TODO Auto-generated catch block
} catch (IOException e) {
// TODO Auto-generated catch block
}
return null;
}
@Override
protected void onPostExecute(String s) {
super.onPostExecute(s);
dialog.dismiss();
// Toast user for a successful operation
Toast.makeText(HelloWorldActivity.this, "Message sent successfully", Toast.LENGTH_LONG).show();
// clear text box
msgTextField.setText("");
}
}
}
相关问题
最新问题
- 我写了这段代码，但我无法理解我的错误
- 我无法从一个代码实例的列表中删除 None 值，但我可以在另一个实例中。为什么它适用于一个细分市场而不适用于另一个细分市场？
- 是否有可能使 loadstring 不可能等于打印？卢阿
- java中的random.expovariate()
- Appscript 通过会议在 Google 日历中发送电子邮件和创建活动
- 为什么我的 Onclick 箭头功能在 React 中不起作用？
- 在此代码中是否有使用“this”的替代方法？
- 在 SQL Server 和 PostgreSQL 上查询，我如何从第一个表获得第二个表的可视化
- 每千个数字得到
- 更新了城市边界 KML 文件的来源？