安卓连接不上mysql怎么办-木庄网络博客

本文摘自PHP中文网，作者藏色散人，侵删。

安卓连接不上mysql的解决办法：首先在Activivty中自定义监听事件；然后在自定义监听事件中开辟子线程；最后将coonection的定义改为“DriverManager.getConnection(...)”即可。

推荐：《mysql视频教程》

Android Studio连接MySQL:问题解决：虚拟机无法连接本地SQL，coon总为空

在子线程中进行数据库的连接

首先在Activivty中自定义监听事件

//写在Activity中
private Button mBtn;
  @Override
 protected void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        SetListener();//自定义监听事件
        }

在自定义监听事件中开辟子线程，注意最后.start()

private void SetListener()
    {
        mBtnadmin.setOnClickListener(new View.OnClickListener()
        {
            @Override
            public void onClick(View view) {
                new Thread(new Runnable() {
                    @Override
                    public void run() {
                        Connection conn=null;//创建连接
                        Statement stmt=null;//用以执行SQL语句
                        try{
                        //注册驱动
                            Class.forName("com.mysql.jdbc.Driver");
                        //数据库的执行语句
                            String sql="insert into demo values(6666,6666)";
 //获取connection对象，这里使用localhost如果无法成功，则改成10.0.2.2,这是虚拟机上电脑的地址，注意是虚拟机，用于虚拟机的测试
                            conn=DriverManager.getConnection("jdbc:mysql://10.0.2.2:3306/logindata","root","666666");
                            stmt=conn.createStatement();
                            stmt.executeUpdate(sql);
                            }
                        }catch (Exception e)
                        {
                            e.printStackTrace();
                        }finally {
                     stmt.close();
                     conn.close();
                           // JDBCUtils .Close(stmt,conn);
                        }
                    }
                }).start();
             }
        });
    }