将Java连接到MySQl数据库

Question

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是否有将Java程序连接到MySQL数据库的标准方法，哪一种是最简单的方法？

Answer 1

JDBC是最简单的标准方法。

Answer 2

JDBC is the standard way. Below is the sample java code to connect MySQL database:

  Connection con = null;
  String driver = "com.mysql.jdbc.Driver";
  String url = "jdbc:mysql://localhost:3306/";
  String db = "testdb";
  String dbUser = "root";
  String dbPasswd = "mysql123";
  try{
  Class.forName(driver);
  con = DriverManager.getConnection(url+db, dbUser, dbPasswd);
  try{
  Statement st = con.createStatement();
  String sql = "DELETE FROM user WHERE email = 'riponalwasim@gmail.com'";
  int delete = st.executeUpdate(sql);
  if(delete >= 1){
  System.out.println("Row is deleted.");
  }
  else{
  System.out.println("Row is not deleted.");
  }
  }
  catch (SQLException s){
  System.out.println("SQL statement is not executed!");
  }
  }
  catch (Exception e){
  e.printStackTrace();
  }

Answer 3

Maybe object-relational mapping with Hibernate is a useful way for you.

Answer 4

In addition to answer posted above, JPA (Hibernate) is even easier one once you cross the initial barrier called learning curve (and before you are hit by next one called, Performance Optimization). On the serious note, Yes JPA is also a standard way to connect and query pretty much any database the same way.