How to Connect to MySQL in JSP

We use tomcat as the container used for instructions in the post.

1) Download the driver mysql-connector-java-*.*.*-bin.jar and put it into WEB-INF/lib/, and remember to restart tomcat.

2) The example code as follows.

    String driverName="com.mysql.jdbc.Driver";

    String userName="username";

    String userPasswd="password";

    String dbName="dbname";

    String tableName="tablename";

    String url="jdbc:mysql://localhost/"+dbName+"?user="+userName+"&password="+userPasswd;

    Class.forName("com.mysql.jdbc.Driver").newInstance();
    Connection conn=DriverManager.getConnection(url);
    Statement statement = conn.createStatement();
    String sql="SELECT * FROM "+tableName;
    ResultSet rs = statement.executeQuery(sql);

    // get the result
    ResultSetMetaData rmeta = rs.getMetaData();

    // the the number of columns
    int numColumns=rmeta.getColumnCount();

    // out each field
    while(rs.next()) {
        out.print(rs.getString(1)+" ");
        out.print("|");
        out.print(rs.getString(2));
        out.print("
    ");
    }

    out.print("
    ");
    out.print("Operations on the DB is done.");
    rs.close();

    statement.close();
    conn.close();