package   com.ayang.jdbc;
   2  
  3   import   java.sql.Connection;
   4   import   java.sql.DriverManager;
   5   import   java.sql.SQLException;
   6   import   java.sql.Statement;
   7  
  8   public   class   TestDML2 {
   9  
 10      
 11       public   static   void   main(String[] args) {
  12           if (args.length!=3 ){
  13               //  判断输入参数个数是否错误 
 14              System.out.println("Parameter Error! Please Input Again!" );
  15              System.exit(-1);  //  系统退出 
 16           }
  17          
 18           int  deptno = 0;   //  声明变量。在头上呢?还是啥时候用啥时候声明呢?面试时,声明在头上。 
 19              
 20           try  {
  21              deptno = Integer.parseInt(args[0 ]);
  22          } catch  (NumberFormatException e){
  23              System.out.println("参数类型错误,请输入数字" );
  24              System.exit(-1 );
  25              
 26           }
  27          String dname = args[1 ];
  28          String loc = args[2 ];
  29          
 30          Connection conn =  null  ;
  31          Statement stmt =  null  ;
  32          
 33           try  {
  34           //  1、注册驱动
  35           //  new oracle.jdbc.driver.OracleDriver(); 
 36          Class.forName("oracle.jdbc.driver.OracleDriver" );
  37           //  2、建立连接 
 38          conn = DriverManager.getConnection("jdbc:oracle:thin:@127.0.0.1:1521:ORCL","scott", "root" );
  39           //  3、创建语句 
 40          stmt =  conn.createStatement();
  41          String  sql  = "insert into dept2 values("+deptno+",‘"+dname+"‘,‘"+loc+"‘)" ;
  42          System.out.println(sql);    //  打印出sql语句用来调试sql 
 43           stmt.executeUpdate(sql);
  44          
 45          } catch   (ClassNotFoundException e) {
  46              System.out.println("未正常加载jdbc驱动" );
  47               e.printStackTrace();
  48          } catch  (SQLException e){
  49              e.printStackTrace();   //  log for java 
 50              
 51          } finally  {
  52           //  6、释放资源 
 53           try   {
  54               if (stmt !=  null  ){
  55                   stmt.close();
  56                  stmt =  null  ;
  57              } if (conn !=  null  ){
  58                   conn.close();
  59                  conn =  null  ;
  60               }
  61          }  catch   (SQLException e) {
  62                   e.printStackTrace();
  63           }
  64          
 65          
 66           }
  67      
 68  
 69       }
  70  
 71  }
 
jdbc调试sql语句方法
标签:
      
查看更多关于jdbc调试sql语句方法的详细内容...