详解java调用存储过程并封装成map

本文代码中注释写的比较清楚不在单独说明，希望能帮助到大家，

实例代码：

public List<Map<String , Object>> doCallProcedure(String procedureString,String[] parameters) throws PersistentDataOperationException { if (!isReady ()) { throw new PersistentDataOperationException( "DAO is not ready."); } ResultSet rs = null; List<Map< String, Object>> list = new ArrayList<Map<String ,Object>>(); try { Connection con=session.connection(); String procedure = "{call "+procedureString+ "(?,?,?) }"; //拼装调用存储过程字符串 CallableStatement cstmt = con.prepareCall (procedure ); //调用存储过程 cstmt.setString (1,parameters [0 ]); //设置入参 cstmt.setInt (2, Integer. parseInt( parameters[ 1])) ;//设置入参 cstmt.registerOutParameter (3, oracle.jdbc.OracleTypes.CURSOR ); //设置出参 cstmt.execute (); //执行提交 rs = (ResultSet ) cstmt.getObject (3 ); //获取出参，3为参数顺序数 ResultSetMetaData rsm =rs.getMetaData (); //获得列集 Map< String, Object> map= null; int col = rsm.getColumnCount (); //获得列的个数 String colName [] = new String[ col] ;//列名集合 for (int i = 0; i < col; i++) { colName [i ] = rsm.getColumnName (i+1 ); } while( rs.next()){ //注意访问结果集是从索引位置1开始的，而不是0 map = new HashMap< String, Object> (); for (int j = 0; j < colName.length; j++) { map.put (colName [j ], rs.getString (j+1 )); } list.add (map ); } session.flush (); } catch (HibernateException e) { throw new PersistentDataOperationException( e) ; } catch (SQLException e) { e.printStackTrace (); } return list; }

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