轉自:http://blog.csdn.net/xiaoxiaobian3310903/article/details/6257237php
使用PHP做爲中間介來實現android連接遠程數據庫。java
PHP代碼:mysql
<?phpandroid
mysql_connect("host","username","password");sql
mysql_select_db("PeopleData");數據庫
$q=mysql_query("SELECT * FROM people WHERE birthyear>'".$_REQUEST['year']."'"); while($e=mysql_fetch_assoc($q)) apache
$output[]=$e;json
print(json_encode($output));app
mysql_close();ide
?>
android代碼:
package lzu.ConnectMysql;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import org.apache.http.NameValuePair;
import org.apache.http.message.BasicNameValuePair;
import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;
public class ConnectMysql extends Activity {
/** Called when the activity is first created. */
private TextView result;
private String content;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
result = (TextView)findViewById(R.id.content);
content = connecting();
result.setText(content);
//the year data to send
}
public String connecting(){
/*存放http請求獲得的結果*/
String result = "";
String ss = null;
/*將要發送的數據封包 */
ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
nameValuePairs.add(new BasicNameValuePair("year","1980"));
InputStream is = null;
//http post
try{
/*建立一個HttpClient的一個對象*/
HttpClient httpclient = new DefaultHttpClient();
/*建立一個HttpPost的對象*/
HttpPost httppost = new HttpPost("http://202.201.0.245/test.php");
/*設置請求的數據*/
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
/*建立HttpResponse對象*/
HttpResponse response = httpclient.execute(httppost);
/*獲取此次迴應的消息實體*/
HttpEntity entity = response.getEntity();
/*建立一個指向對象實體的數據流*/
is = entity.getContent();
}catch(Exception e){
System.out.println("Connectiong Error");
}
//convert response to string
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();
result=sb.toString();
System.out.println("get = " + result);
}catch(Exception e){
System.out.println("Error converting to String");
}
//parse json data
try{
/*從字符串result建立一個JSONArray對象*/
JSONArray jArray = new JSONArray(result);
for(int i=0;i<jArray.length();i++){
JSONObject json_data = jArray.getJSONObject(i);
System.out.println("Success");
System.out.println("result " + json_data.toString());
if( i == 0){
ss = json_data.toString();
}
else{
ss += json_data.toString();
}
}
}
catch(JSONException e){
System.out.println("Error parsing json");
}
return ss;
}
}