Package org.apache.commons.dbutils.handlers

Examples of org.apache.commons.dbutils.handlers.ScalarHandler

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  public int queryCount(String sql,Object...params) throws SQLException {
   
    Connection conn = getConnection();
    Number num = null;
    try{
      num = (Number)queryRunner.query(conn, sql, new ScalarHandler(), params);
      return (num!=null)?num.intValue():-1;
    }catch(SQLException e){
      throw e;
    }finally{
      DBManager.closeConnection();
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    @SuppressWarnings({ "unchecked", "rawtypes" })
  public Object findBy(String sql, String columnName, Object[] params) {  
        Object object = null; 
        try { 
            if (params == null) { 
                object = qr.query(sql, new ScalarHandler(columnName)); 
            } else { 
                object = qr.query(sql, new ScalarHandler(columnName), params); 
            } 
        } catch (SQLException e) { 
            System.err.println("findBy������" +e); 
        } 
        return object; 
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