Mysql-Connector- Java与Spring-Jdbc之间的区别

据我所知,我们使用Mysql-connector jar将Java应用程序连接到数据库.我正在阅读春季教程,并且上述两个内容都已通过maven添加.两者有什么区别？

解决方法:

MySQL Connector是允许Java与MySQL对话的驱动程序.

Spring JDBC是一个使编写JDBC代码更容易的库. JdbcTemplate特别有用.

在JdbcTemplate之前：

Connection connection = null;
Statement statement = null;
ResultSet rs = null;
int count;

try {
  connection = dataSource.getConnection();
  statement = connection.createStatement();
  rs = statement.executeQuery("select count(*) from foo");
  if(rs.next()) {
    count = rs.getInt(0);
  }
} catch (SQLException exp) {
  throw new RuntimeException(exp);
} finally {
  if(connection != null) {
    try { connection.close(); } catch (SQLException exp) {}
  }
  if(statement != null) {
    try { statement.close(); } catch (SQLException exp) {}
  }
  if(rs != null) {
    try { rs.close(); } catch (SQLException exp) {}
  }
}

在JdbcTemplate之后：

JdbcTemplate jdbcTemplate = new JdbcTemplate(dataSource);
int count = jdbcTemplate.queryForObject("select count(*) from foo", Integer.class);

看看一种方式吸吮少得多吗？

标签：mysql-connector,jdbc,spring,spring-jdbc
来源： https://codeday.me/bug/20191027/1943921.html