String sqlStr = "insert into TIMU(ITEM_NAME,ITEM_CONTENT,ITEMTYPE_ID,USER_ID,COURSE_ID," +
    "ITEM_KEY,ITEM_SCORE,ITEM_ANSWER) values(" +
     "'" + itemName + "'," +
     "'" + content + "'," +
      typeId + "," +
      "'" + userId + "'," +
      "'" + courseId + "'," +
      "'" + itemKey + "'," +
      "'" + score + "'," +
      "'" + finalItemAns + "')";
  
  Connection conn = null;
        ResultSet rs = null;
        PreparedStatement pstmt = null;
        int generateId = 0;
        
        try{
         conn = ConnCreator.getConnection();
         pstmt = conn.prepareStatement(sqlStr, Statement.RETURN_GENERATED_KEYS); 
      pstmt.executeUpdate(); 
      
      rs = pstmt.getGeneratedKeys(); 
      if (rs.next()) { 
       generateId = rs.getInt(1); 
       LogHelper.log("新增习题信息成功,sql:" + sqlStr);
      } else{
       LogHelper.log("新增习题信息失败,sql:" + sqlStr);
      }
        }catch(Exception ex){
         
        }finally{
         try {
    rs.close();
    pstmt.close();
    conn.close();
   } catch (Exception e) {
    e.printStackTrace();
   }
        }