/**
 * 執(zhí)行增刪改的操作
 * @param sql
 * @param param
 * @return
 */
 public static boolean operUpdate(String sql, List<Object> param) {
 int res = 0;// 獲得影響的行數(shù)
 Connection conn = null;// 獲取連接
 PreparedStatement psts = null;// 裝載sql語句
 ResultSet rs = null;
 conn = getConn();
 try {
 psts = conn.prepareStatement(sql);
 if (param != null) {
 for (int i = 0; i < param.size(); i++) {
 psts.setObject(i + 1, param.get(i));
 }
 }
 res = psts.executeUpdate();

 } catch (SQLException e) {
 e.printStackTrace();
 } finally {
 closeAll(rs, psts, conn);//關(guān)閉相關(guān)的連接
 }
 return res > 0 ? true : false;

 }

/**
 * 執(zhí)行查找的操作
 * @param sql
 * @param param
 * @return
 */
 public static <T> List<T> operQuery(String sql, List<Object> param, Class<T> cls) {
 Connection conn = null;// 獲取連接
 PreparedStatement psts = null;// 裝載sql語句
 ResultSet rs = null;
 conn = getConn();
 List<T> list = new ArrayList<T>();
 try {
 psts = conn.prepareStatement(sql);
 if (param != null) {
 for (int i = 0; i < param.size(); i++) {
 psts.setObject(i + 1, param.get(i));
 }
 }
 rs=psts.executeQuery();

 ResultSetMetaData rsmd = rs.getMetaData();
 while(rs.next()){
 T entity = cls.newInstance();
 for(int j =0;j<rsmd.getColumnCount();j++){
 String columnName = rsmd.getColumnName(j+1);
 Object value = rs.getObject(columnName);
 Field fields = cls.getDeclaredField(columnName);
 fields.setAccessible(true);
 fields.set(entity, value);
 }
 list.add(entity);
 }
 } catch (SQLException e) {
 e.printStackTrace();
 } catch (InstantiationException e) {
 e.printStackTrace();
 } catch (IllegalAccessException e) {
 e.printStackTrace();
 } catch (NoSuchFieldException e) {
 e.printStackTrace();
 } catch (SecurityException e) {
 e.printStackTrace();
 } finally {
 closeAll(rs, psts, conn);
 }
 return list;
 }