@Test
  public void testResultSet(){
    //獲取id=2的customers數(shù)據(jù)表的記錄，并打印
    Connection connection = null;
    Statement statement = null;
    ResultSet rs = null;
    try {
      //1.獲取Connection
      connection = JDBCTools.getConnection();
      //2.獲取Statement
      statement = connection.createStatement();
      //3.準(zhǔn)備Sql
      String sql = "SELECT * FROM CUSTOMERS WHERE ID=2";
      //4.執(zhí)行查詢，得到ResultSet
      rs = statement.executeQuery(sql);
      //5.處理ResultSet
      while(rs.next()){
        //rs.get+數(shù)據(jù)庫中對應(yīng)的類型+(數(shù)據(jù)庫中對應(yīng)的列別名)
        int id = rs.getInt("ID");
        String name = rs.getString("name");
        String email = rs.getString("email");
        Date birth = rs.getDate("birth");
        
        System.out.println(id);
        System.out.println(name);
        System.out.println(email);
        System.out.println(birth);
      }
    } catch (Exception e) {
      e.printStackTrace();
    }finally{
      //6.關(guān)閉數(shù)據(jù)庫相應(yīng)的資源
      JDBCTools.release(rs, statement, connection);
    }
  }

關(guān)閉的那個方法在Tools里寫了一個重載的

這個只是最最最基礎(chǔ)的用JDBC進(jìn)行查詢的操作，日后不一定完善，看心情~

以上這篇使用JDBC從數(shù)據(jù)庫中查詢數(shù)據(jù)的方法就是小編分享給大家的全部內(nèi)容了，希望能給大家一個參考，也希望大家多多支持腳本之家。

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