Question

public class Sign_In extends Activity {
    EditText et_user , et_pass;
    Button login ;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.sign_in);
        et_user = (EditText) findViewById(R.id.et_user_login);
        et_pass = (EditText) findViewById(R.id.et_pass_login);
        login = (Button) findViewById(R.id.btlogin);

    login.setOnClickListener(new View.OnClickListener() {
        public void onClick(View V) {
        HttpClient httpClient = new DefaultHttpClient();
        HttpPost httpPost = new HttpPost("http://10.0.2.2/koora/checkPerson.php?user="+et_user.getText().toString()+
                "pass="+et_pass.getText().toString());

        try

        {
            HttpResponse response = httpClient.execute(httpPost);
            HttpEntity httpEntity = response.getEntity();
            InputStream is = httpEntity.getContent();

            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");

                }
                Toast.makeText(getApplicationContext(), sb.toString(), Toast.LENGTH_LONG).show();

                reader.close();


            } catch (Exception e) {
                Log.e("Buffer Error", "Error converting result " + e.toString());
            }


            Log.d("Http Response:", response.toString());
        }

        catch(
        ClientProtocolException e
        )

        { 
            e.printStackTrace();
        }

        catch(
        IOException e
        )

        {
            e.printStackTrace();
        }

        }
    });
}

}

这是php代码：

<?php
$username=$_REQUEST["user"];
$password=$_REQUEST["pass"];
include 'config.php';
$response=array();
function connect(){
    return mysqli_connect(HOST,USER,PASS,DATABASE); 
}
$query=" select username , password from person where username = ".$username." and password =  ".$password." ";
$query_res=mysqli_query(connect(),$query);
$num_results=mysqli_num_rows($query_res);
if($num_results>0){
        $response["message"]="login successful";
        echo json_encode($response);
    }else{
        $response["message"]="login unsuccessful";
        echo json_encode($response);
    }
?>

配置文件：

<?php 
define("HOST","localhost");
define("DATABASE","final_project");
define("USER","root");
define("PASS","");
?>

我当然正在使用wamp服务器，我将internet权限放入manifest.xml文件

和错误：

android.os.NetworkOnMainThreadException 在android.os.StrictMode $ AndroidBlockGuardPolicy.onNetwork（StrictMode.java:1145）在libcore.io.BlockGuardOs.connect（BlockGuardOs.java:84）在libcore.io.IoBridge.connectErrno（IoBridge.java:127）在libcore.io.IoBridge.connect（IoBridge.java:112）在java.net.PlainSocketImpl.connect（PlainSocketImpl.java:192）在java.net.PlainSocketImpl.connect（PlainSocketImpl.java:459）在java.net.Socket.connect（Socket.java:843）在org.apache.http.conn.scheme.PlainSocketFactory.connectSocket（PlainSocketFactory.java:119） at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection（DefaultClientConnectionOperator.java:144）在org.apache.http.impl.conn.AbstractPoolEntry.open（AbstractPoolEntry.java:164）在org.apache.http.impl.conn.AbstractPooledConnAdapter.open（AbstractPooledConnAdapter.java:119） at org.apache.http.impl.client.DefaultRequestDirector.execute（DefaultRequestDirector.java:360）在org.apache.http.impl.client.AbstractHttpClient.execute（AbstractHttpClient.java:555）在org.apache.http.impl.client.AbstractHttpClient.execute（AbstractHttpClient.java:487）在org.apache.http.impl.client.AbstractHttpClient.execute（AbstractHttpClient.java:465）在com.koora.com.koora.Sign_In $ 1.onClick（Sign_In.java:43）在android.view.View.performClick（View.java:4438）在android.view.View $ PerformClick.run（View.java:18422）在android.os.Handler.handleCallback（Handler.java:733）在android.os.Handler.dispatchMessage（Handler.java:95）在android.os.Looper.loop（Looper.java:136）在android.app.ActivityThread.main（ActivityThread.java:5017） at java.lang.reflect.Method.invokeNative（Native Method）在java.lang.reflect.Method.invoke（Method.java:515）在com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run（ZygoteInit.java:779）在com.android.internal.os.ZygoteInit.main（ZygoteInit.java:595）在dalvik.system.NativeStart.main（本地方法）

强制关闭android-studio

0 个答案: