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그래서 app을 만들었으며 이제는 MySQL Server에 연결하려고합니다. 현재 eclipse에서 AVD까지 근무하고 있습니다.내 응용 프로그램을 온라인 MySQL 서버 (워크 벤치)에 연결
는 그래서 SQL Server에 연결하기위한 내 코드 :
java.sql.SQLException: No suitable driver
어떤 도움 :
try{
Connection con = DriverManager.getConnection("jdbc:mysql://xxxx:3306/cl49-takeawa-cc7","cl49-takeawa-cc7","xxxx");
PreparedStatement st = con.prepareStatement("select * from app_users where user_username='"+username2+"'");
ResultSet rs = st.executeQuery();
while(rs.next()){
String username = rs.getString("user_username");
if(username.equals(username2)){
Toast.makeText(getBaseContext(), "This user already exist! Please try another name", Toast.LENGTH_SHORT).show();
}
}
user_id++;
PreparedStatement st1 = (PreparedStatement) con.prepareStatement("INSERT INTO user (user_id,user_realname,user_username,user_password,user_house_number,user_postcode,user_address,user_email) VALUES (?,?,?,?,?,?,?,?)");
st1.setLong(1, user_id);
st1.setString(2, fullname1);
st1.setString(3, username2);
st1.setString(4, password1);
st1.setString(5, housenumber1);
st1.setString(6, postcode2);
st1.setString(7, address1);
st1.setString(8, email1);
st1.executeUpdate();
st1.close();
con.close();
}catch(Exception ex){
System.out.println(ex);
}
는 그리고 이것은 내가 할 그 error입니까?
편집 :
else{
new PostTask();
Toast.makeText(getBaseContext(), "You have created an account! Time to eat!", Toast.LENGTH_SHORT).show();
Intent myIntent = new Intent(getBaseContext(), MainActivity.class);
startActivity(myIntent);
}
}
});
}
// The definition of our task class
private class PostTask extends AsyncTask<String, Integer, String> {
@Override
protected void onPreExecute() {
super.onPreExecute();
}
@Override
protected String doInBackground(String... params) {
String url=params[0];
try{
Connection con = DriverManager.getConnection("jdbc:mysql://xxxx:3306/cl49-takeawa-cc7","cl49-takeawa-cc7","xxxx");
PreparedStatement st = con.prepareStatement("select * from app_users where user_username='"+username2+"'");
ResultSet rs = st.executeQuery();
while(rs.next()){
String username = rs.getString("user_username");
if(username.equals(username2)){
Toast.makeText(getBaseContext(), "This user already exist! Please try another name", Toast.LENGTH_SHORT).show();
}
}
user_id++;
PreparedStatement st1 = (PreparedStatement) con.prepareStatement("INSERT INTO user (user_id,user_realname,user_username,user_password,user_house_number,user_postcode,user_address,user_email) VALUES (?,?,?,?,?,?,?,?)");
st1.setLong(1, user_id);
st1.setString(2, fullname1);
st1.setString(3, username2);
st1.setString(4, password1);
st1.setString(5, housenumber1);
st1.setString(6, postcode2);
st1.setString(7, address1);
st1.setString(8, email1);
st1.executeUpdate();
st1.close();
con.close();
}catch(Exception ex){
System.out.println(ex);
}
return url;
}
@Override
protected void onProgressUpdate(Integer... values) {
super.onProgressUpdate(values);
}
@Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
}
}
}
가 지금은 다시 LogCat에서 뭔가를하지 않지만, 또한 내가 MySQL Server
클래스 경로에 추가하고 자바 경로 – pap
빌드 MySQL은 3.0.17 커넥터 시도하고 모든 액세스를 배치 Asyn_Task 안의'mysql' db에 – Sukan
정말 괜찮습니까? 그것을 할 또 다른 방법이 있습니까? 또한 AsyncTask를 의미합니까? – pap