ClassNotFoundException on Class.forName(“com.mysql.jdbc.Driver”); [duplicate]

问题

I am working on a android project with eclipse, I have a ClassNotFoundException error on:

Class.forName("com.mysql.jdbc.Driver");

I imported the jar file mysql-connector as is shown in the picture at the link: https://dl.dropboxusercontent.com/u/17360312/Untitled.png

I already put the jar file into libs folder but doesn't work.

Here is the code of the import and package statement of the java file

package com.example.appcani;


import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import com.mysql.jdbc.*;
import prog.doc.prog.io.*;
import prog.io.ConsoleOutputManager;
import prog.io.FileInputManager;
import android.support.v7.app.ActionBarActivity;
import android.support.v7.app.ActionBar;
import android.support.v4.app.Fragment;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import android.os.Build;