<style></style>
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public static void main(String[] args) {
Connection connection = null;
PreparedStatement preparedStatement = null;
ResultSet resultSet=null;
try{
Class.forName("com.MysqL.jdbc.Driver");
connection = DriverManager.getConnection("jdbc:MysqL://localhost:3306/mybatis?characterEncoding=utf-8","root","123456");
String sql = "select * from user where username = ?";
preparedStatement=connection.prepareStatement(sql);
preparedStatement.setString(1,"Tom");
resultSet=preparedStatement.executeQuery();
while(resultSet.next()){
System.out.println(resultSet.getString("id")+""+resultSet.getString("username"));
}
}catch (Exception e){
e.printstacktrace();
}finally {
if(resultSet!=null){
try {
resultSet.close();
} catch (sqlException throwables) {
throwables.printstacktrace();
}
}
}
}
