2016-7-8 JDBC for Mysql

版本:

mysql-connector-java-6.0.2-bin.jar

mysql : 5.7.11

import com.mysql.cj.api.jdbc.Statement;

public class test {

    public static void main(String[] args) {
        try {

            Class.forName("com.mysql.cj.jdbc.Driver").newInstance();
            Connection conn = null;
            String urlString = "jdbc:mysql://localhost:3306/javademo?user=root&password=123" 
                    + "&characterEncoding=utf8"
                        + "&useSSL=true&serverTimezone=UTC";
            conn = DriverManager.getConnection(urlString);
            Statement sat = (Statement) conn.createStatement();
            String sql = "select * from student";
            ResultSet result = sat.executeQuery(sql);
            int numCol = result.getMetaData().getColumnCount();
            while (result.next()) {
                for (int i = 1; i <= numCol; i++) {
                    System.out.println(result.getString(i));
                }
            }
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }
}

更新:

1.Class.forName("com.mysql.cj.jdbc.Driver").newInstance();

2."&useSSL=true&serverTimezone=UTC" 必须滴

3.在JDK1.5之后，其实已经不需要去显式调用Class.forName("com.mysql.cj.jdbc.Driver")了，DriverManager会自动去加载合适的驱动，但是前提是CLASSPATH下必须有驱动jar包。