私のコードは一度機能したので、正しいことを知っています。私のPHPには問題はありません。実行すると、必要なものが返されるからです。ここでの問題はリクエストにあります。正しい住所を取得しようとしていますが、これまでのところ、可能な限りすべてを試しましたが、成功しませんでした。私のコードは次のとおりです。
package com.example.testwiththread;
import java.util.ArrayList;
import java.util.List;
import org.apache.http.NameValuePair;
import org.apache.http.message.BasicNameValuePair;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.widget.EditText;
import android.widget.Toast;
public class MainActivity extends Activity {
JSONParser jsonParser = new JSONParser();
String pid;
String name = "";
String test = "";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.service_details);
new Thread(new TestThread()).start();
Toast.makeText(this, "Hi", Toast.LENGTH_SHORT).show();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
public void clickSend (View view) {
EditText txtName = (EditText) findViewById(R.id.txtName);
EditText txtPrice = (EditText) findViewById(R.id.txtTest);
// display product data in EditText
txtName.setText(name);
txtPrice.setText(test);
Log.e("Checking", name);
Log.e("Checking", test);
}
public class TestThread extends Thread {
public void run() {
int success;
try {
// Building Parameters
List<NameValuePair> params = new ArrayList<NameValuePair>();
params.add(new BasicNameValuePair("pid", pid));
// getting product details by making HTTP request
// Note that product details url will use GET request
JSONObject json = jsonParser.makeHttpRequest(
"http://10.0.2.2:8080/webservice.php", "GET", params);
// check your log for json response
Log.d("Single Record Details", json.toString());
// json success tag
success = json.getInt("success");
if (success == 1) {
// successfully received product details
JSONArray productObj = json.getJSONArray("record"); // JSON Array
// get first product object from JSON Array
JSONObject product = productObj.getJSONObject(1);
name = product.getString("name");
test = product.getString("test");
}
} catch (JSONException e) {
Log.e("error", e.toString());
}
}
}
}
私のJSONパーサー:
package com.example.secondtestsqlserver;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.util.List;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.utils.URLEncodedUtils;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONException;
import org.json.JSONObject;
import android.util.Log;
public class JSONParser {
static InputStream is = null;
static JSONObject jObj = null;
static String json = "";
// constructor
public JSONParser() {
}
// function get json from url
// by making HTTP POST or GET method
public JSONObject makeHttpRequest(String url, String method,
List<NameValuePair> params) {
// Making HTTP request
try {
// check for request method
if(method == "POST"){
// request method is POST
// defaultHttpClient
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
httpPost.setEntity(new UrlEncodedFormEntity(params));
HttpResponse httpResponse = httpClient.execute(httpPost);
HttpEntity httpEntity = httpResponse.getEntity();
is = httpEntity.getContent();
}else if(method == "GET"){
// request method is GET
DefaultHttpClient httpClient = new DefaultHttpClient();
String paramString = URLEncodedUtils.format(params, "utf-8");
url += "?" + paramString;
HttpGet httpGet = new HttpGet(url);
HttpResponse httpResponse = httpClient.execute(httpGet);
HttpEntity httpEntity = httpResponse.getEntity();
is = httpEntity.getContent();
}
} catch (UnsupportedEncodingException e) {
Log.e("Unsupported Encoding", Log.getStackTraceString(e));
} catch (ClientProtocolException e) {
Log.e("Client Protocol", Log.getStackTraceString(e));
} catch (IOException e) {
Log.e("IO Exception", Log.getStackTraceString(e));
}
try {
BufferedReader reader = new BufferedReader(new InputStreamReader(
is, "iso-8859-1"), 8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
is.close();
json = sb.toString();
} catch (Exception e) {
Log.e("Buffer Error", "Error converting result " + e.toString());
System.out.println(e.toString());
}
// try parse the string to a JSON object
try {
jObj = new JSONObject(json);
} catch (JSONException e) {
Log.e("JSON Parser", "Error parsing data " + e.toString());
Log.e("JSON Parser", json);
}
// return JSON String
return jObj;
}
}
ご覧のとおり、localhost アドレスとして 10.0.2.2:8080 を使用しています。127.0.0.1、localhost、および localhost の Android ページに含まれる他の多くのオプションを試しました。それらのほとんどはこのエラーを返します
02-11 15:18:31.329: E/IO Exception(27504): org.apache.http.conn.HttpHostConnectException: Connection to http://10.0.2.2:8080 refused
02-11 15:18:31.329: E/IO Exception(27504): at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:183)
02-11 15:18:31.329: E/IO Exception(27504): at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:164)
02-11 15:18:31.329: E/IO Exception(27504): at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:119)
02-11 15:18:31.329: E/IO Exception(27504): at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:360)
02-11 15:18:31.329: E/IO Exception(27504): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:555)
02-11 15:18:31.329: E/IO Exception(27504): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487)
02-11 15:18:31.329: E/IO Exception(27504): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:465)
02-11 15:18:31.329: E/IO Exception(27504): at com.example.testwiththread.JSONParser.makeHttpRequest(JSONParser.java:62)
02-11 15:18:31.329: E/IO Exception(27504): at com.example.testwiththread.MainActivity$TestThread.run(MainActivity.java:63)
02-11 15:18:31.329: E/IO Exception(27504): at java.lang.Thread.run(Thread.java:856)
02-11 15:18:31.329: E/IO Exception(27504): Caused by: java.net.ConnectException: failed to connect to /10.0.2.2 (port 8080): connect failed: ETIMEDOUT (Connection timed out)
02-11 15:18:31.329: E/IO Exception(27504): at libcore.io.IoBridge.connect(IoBridge.java:114)
02-11 15:18:31.329: E/IO Exception(27504): at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:192)
02-11 15:18:31.329: E/IO Exception(27504): at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:459)
02-11 15:18:31.329: E/IO Exception(27504): at java.net.Socket.connect(Socket.java:842)
02-11 15:18:31.329: E/IO Exception(27504): at org.apache.http.conn.scheme.PlainSocketFactory.connectSocket(PlainSocketFactory.java:119)
02-11 15:18:31.329: E/IO Exception(27504): at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:144)
02-11 15:18:31.329: E/IO Exception(27504): ... 9 more
02-11 15:18:31.329: E/IO Exception(27504): Caused by: libcore.io.ErrnoException: connect failed: ETIMEDOUT (Connection timed out)
02-11 15:18:31.329: E/IO Exception(27504): at libcore.io.Posix.connect(Native Method)
02-11 15:18:31.329: E/IO Exception(27504): at libcore.io.BlockGuardOs.connect(BlockGuardOs.java:85)
02-11 15:18:31.329: E/IO Exception(27504): at libcore.io.IoBridge.connectErrno(IoBridge.java:127)
02-11 15:18:31.329: E/IO Exception(27504): at libcore.io.IoBridge.connect(IoBridge.java:112)
02-11 15:18:31.329: E/IO Exception(27504): ... 14 more
02-11 15:18:31.329: E/Buffer Error(27504): Error converting result java.lang.NullPointerException: lock == null
02-11 15:18:31.329: E/JSON Parser(27504): Error parsing data org.json.JSONException: End of input at character 0 of
02-11 15:18:31.329: W/dalvikvm(27504): threadid=11: thread exiting with uncaught exception (group=0x40e46930)
02-11 15:18:31.329: E/AndroidRuntime(27504): FATAL EXCEPTION: Thread-9043
02-11 15:18:31.329: E/AndroidRuntime(27504): java.lang.NullPointerException
02-11 15:18:31.329: E/AndroidRuntime(27504): at com.example.testwiththread.MainActivity$TestThread.run(MainActivity.java:67)
02-11 15:18:31.329: E/AndroidRuntime(27504): at java.lang.Thread.run(Thread.java:856)
ただし、このエラーが返されないのは、ルーターの IP アドレスを使用した場合だけです。問題は、接続が拒否されていないにもかかわらず、アクセスが禁止されていると表示されることです。どんな助けでも大歓迎です。
編集: 念のため、マニフェストでインターネット アクセスを指定しました。