无法使用android在ms sql数据库中插入记录

我正在尝试使用ftp将图像上载到web文件夹，它工作正常，但当我尝试插入相应图像的记录时，它不起作用，程序在尝试块之前会跳转。我已使用每个循环上载图像以及获取图像的文件名。下面是用于插入的代码以及上传图片。 因此，当我尝试使用for each循环上载10多个图像时，我无法插入记录，但ftp图像上载工作正常。 我需要知道我在哪里犯了错误。有人能告诉我我在哪里犯了错误吗

public class DisplayImageActivity extends Activity{
private ImageAdapter imageAdapter;
String call, db, un, passwords;
String orig;
String names;
String icore;
String imagename;
Connection con;
ResultSet rs;
ConnectionClass connectionclass;
String imagenametag;
@SuppressLint("NewApi")
private Connection ConnectionHelper(String user, String password,
                                    String database, String server) {
    StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder()
            .permitAll().build();
    StrictMode.setThreadPolicy(policy);
    Connection connection = null;
    String ConnectionURL = null;
    try {
        Class.forName("net.sourceforge.jtds.jdbc.Driver");
        ConnectionURL = "jdbc:jtds:sqlserver://" + server + ";"
                + "databaseName=" + database + ";user=" + user
                + ";password=" + password + ";";
        connection = DriverManager.getConnection(ConnectionURL);
    } catch (SQLException se) {
        Log.e("ERRO", se.getMessage());
    } catch (ClassNotFoundException e) {
        Log.e("ERRO", e.getMessage());
    } catch (Exception e) {
        Log.e("ERRO", e.getMessage());
    }
    return connection;
}
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.gridview);
    sendBroadcast(new Intent(Intent.ACTION_MEDIA_MOUNTED, Uri
            .parse("file://"
                    + Environment.getExternalStorageDirectory())));
    connectionclass = new ConnectionClass();
    call = connectionclass.getip();
    un = connectionclass.getun();
    passwords = connectionclass.getpassword();
    db = connectionclass.getdb();

//    connect = ConnectionHelper(un, passwords, db, call);
    GridView gridview = (GridView) findViewById(R.id.gridview);
    imageAdapter = new ImageAdapter(this);
    gridview.setAdapter(imageAdapter);
    String ExternalStorageDirectoryPath = Environment
            .getExternalStorageDirectory()
            .getAbsolutePath();
    String targetPath = ExternalStorageDirectoryPath + "/JCG Camera";
    Toast.makeText(getApplicationContext(), targetPath, Toast.LENGTH_LONG).show();
    File targetDirector = new File(targetPath);
    File[] files = targetDirector.listFiles();



        orig = "/site1/Image/";

    for(File file1:files){
        imageAdapter.add(file1.getAbsolutePath());
        if(!file1.isFile())continue;
        String msg = "";
        String[]bits=file1.getName().split("_");
      //  imagenametag = file1.getName();
       // String[] parts = imagenametag.split("_");
        names = bits[0];
        icore = bits[1];
        imagename = file1.getName();
        try {
            con = ConnectionHelper(un, passwords, db, call);
            if (con == null) {
                msg = "Error in connection with SQL server";
            } else {
                String commands = "Insert into Image(Image_Tag,Image_Name,orig_img_path) values ('" + names + "','" + imagename + "','" + orig + "')";
                PreparedStatement preStmt = con.prepareStatement(commands);
                preStmt.executeUpdate();
                msg = "Info Saved";

                    new FTPFileUpload(this).execute(
                            FTPConstants.SERVER,
                            FTPConstants.USER_NAME,
                            FTPConstants.PASSWORD,
                            file1.getAbsolutePath(),
                            "/site1/Image/" + file1.getName());
            }
        } catch (SQLIntegrityConstraintViolationException ec) {
            msg = "Image Taken Already";
        } catch (IOError ex) {
            // TODO: handle exception
            msg = ex.getMessage().toString();
            Log.d("skool", msg);
        } catch (AndroidRuntimeException ex) {
            msg = ex.getMessage().toString();
            Log.d("skool", msg);

        } catch (NullPointerException ex) {
            msg = ex.getMessage().toString();
            Log.d("skool", msg);
        } catch (Exception ex) {
            //    msg= ""+spstud.getSelectedItem()+"'s Record has been saved already for"+date.getText().toString()+"";
            Log.d("skool", msg);
        }
        Toast.makeText(DisplayImageActivity.this, msg, Toast.LENGTH_LONG).show();
    }
 }

@Override
public void onBackPressed() {
    super.onBackPressed();
    String ExternalStorageDirectoryPath = Environment
            .getExternalStorageDirectory()
            .getAbsolutePath();

    String targetPath = ExternalStorageDirectoryPath + "/JCG Camera";

  //  Toast.makeText(getApplicationContext(), targetPath, Toast.LENGTH_LONG).show();
    File targetDirector = new File(targetPath);

    File[] files = targetDirector.listFiles();
    for (File file : files) {
        file.delete();

    }
    Intent i=new Intent(DisplayImageActivity.this,ListMain.class);
    startActivity(i);
    DisplayImageActivity.this.finish();
}

---

}

您能否更具体地说明当您尝试插入超过10张图像时会发生什么情况？你有错误吗？撞车？异常？当插入10多个图像时，图像会被很好地上载，但插入查询不起作用。循环会在try块之前跳转。即使上载2个图像，插入查询也不会在SQL区域周围插入一些断点。事实上，您上传的所有图像都表明循环工作正常，并且您的SQL块没有抛出异常（否则图像的循环将被破坏）。要排除SQL字符串本身，请尝试直接在服务器上使用它，看看是否有错误。我不明白。你可以用一些示例解释一下你不明白什么？你能更具体地说明当你尝试插入10多个图像时会发生什么情况吗？你有错误吗？撞车？异常？当插入10多个图像时，图像会被很好地上载，但插入查询不起作用。循环会在try块之前跳转。即使上载2个图像，插入查询也不会在SQL区域周围插入一些断点。事实上，您上传的所有图像都表明循环工作正常，并且您的SQL块没有抛出异常（否则图像的循环将被破坏）。要排除SQL字符串本身，请尝试直接在服务器上使用它，看看是否有错误。我不明白，你能用一些例子解释一下吗？你不明白什么？