知识大全 Eclipse下配置swt开发环境

Posted 2022-07-18 环境

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　　创建存储过程的脚本

　　使用sqlserver 中的pubs 数据库中的 jobs表为例

　　 create procedure showAll as select * from jobs

　　create procedure obtainJob_desc @outputParam varchar( ) output @id int as select @outputParam = job_desc from jobs where job_id = @id

　　create procedure obtainReturn as declare @ret int select @ret = count(*) from jobs return @ret

　　declare @ret int exec @ret = obtainReturn print @ret

用来获得连接的函数 public Connection getConnection() Connection con = null; try Class forName( microsoft jdbc sqlserver SQLServerDriver ); con = DriverManager getConnection( jdbc:microsoft:sqlserver://localhost: ;databasename=pubs sa ); catch (Exception e) e printStackTrace(); return con ; 调用得到结果集的存储过程

　　 public void getResultSet() //获得连接 Connection con = this getConnection(); try //showAll为存储过程名 java sql CallableStatement cstm = con prepareCall( call showAll ); ResultSet rs = cstm executeQuery(); while(rs next()) //这里写逻辑代码 System out println(rs getString( )); rs close(); con close(); catch (SQLException e) // TODO Auto generated catch block e printStackTrace();

　　调用带有输入输出参数的存储过程

　　 public void getOutParameter(int inParam) String outParam; Connection con = this getConnection();

　　try CallableStatement cstm = con prepareCall( call obtainJob_desc (? ?) ); cstm registerOutParameter( Types VARCHAR); cstm setInt( inParam); cstm execute();;

　　//得到输出参数 String outParma = cstm getString( ); System out println(outParma); cstm close(); con close();

　　 catch (SQLException e) // TODO Auto generated catch block e printStackTrace();

调用带返回值的存储过程

　　 public void getReturn() int ret; Connection con = this getConnection(); try CallableStatement cstm = con prepareCall( ?=call obtainReturn() ); cstm registerOutParameter( Types INTEGER);

　　cstm execute(); //得到返回值 ret = cstm getInt( );

　　System out println(ret); cstm close(); con close();

　　 catch (SQLException e) // TODO Auto generated catch block e printStackTrace();

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