问题描述
- iframe 加载数据出现同事访问数据库后数据相同
-
现在第一项和第五项数据时一样的。请大神帮我看下这个应该怎么改。(使用bootstrap框架)web.xml
<servlet> <servlet-name>TrendChart</servlet-name> <servlet-class>web.TrendChartServlet</servlet-class> </servlet> <servlet-mapping> <servlet-name>TrendChart</servlet-name> <url-pattern>/trendchart</url-pattern> </servlet-mapping>jquery tab所在页面，下面使用iframe将每一项镶嵌进一个块中
<div id="tabs"> <ul> <%if((dev_type == comm_info.DEV_TYPE_BARN_CO2)||(dev_type == comm_info.DEV_TYPE_BARN_TMP)) {%> <li><a class="corner-tl" href="#tabs-1">空气温湿度曲线图</a></li> <%}else {%> <li><a class="corner-tl" href="#tabs-1">实时水温、溶氧曲线图</a></li> <%} %> <%if((dev_type != comm_info.DEV_TYPE_BARN_CO2)&&(dev_type != comm_info.DEV_TYPE_BARN_TMP)) {%> <li><a class="" href="#tabs-3">参数配置</a></li> <li><a class="" href="#tabs-4">时段配置</a></li> <%} %> <li><a class="corner-tr" href="#tabs-5">事件查询</a></li> <%if(dev_type == comm_info.DEV_TYPE_FISH_PH) {%> <li><a class="corner-tr" href="#tabs-6">PH、氨氮曲线图</a></li> <%}%> <%if(dev_type == comm_info.DEV_TYPE_BARN_CO2) {%> <li><a class="corner-tr" href="#tabs-7">土壤温湿度曲线图</a></li> <li><a class="corner-tr" href="#tabs-8">二氧化碳曲线图</a></li> <%}%> </ul> <%if((dev_type == comm_info.DEV_TYPE_BARN_CO2)||(dev_type == comm_info.DEV_TYPE_BARN_TMP)) {%> <div id="tabs-1"> <p> <iframe src="/trendchart?dev_id=<%=dev_id%>&date=<%=date %>&dev_type=<%=dev_type%>&var_type=2" width="100%" style="min-height:450px; height:100%" ></iframe> </p> </div> <%}else {%> <div id="tabs-1"> <p> <!--iframe src="/fish_web/trendchart?dev_id=<%=dev_id%>&date=<%=date %>&dev_type=<%=dev_type%>&var_type=1" id="iframepage" onLoad="iFrameHeight()" width="100%" ></iframe--> <iframe src="/trendchart?dev_id=<%=dev_id%>&date=<%=date %>&dev_type=<%=dev_type%>&var_type=1" width="100%" style="min-height:450px; " id="myframe" selected="true"></iframe> </p> </div> <%} %> <% if ((user_type != comm_info.USER_TYPE_AGENT_CHILD ) && (dev_type != comm_info.DEV_TYPE_BARN_CO2)&& (dev_type != comm_info.DEV_TYPE_BARN_TMP)) {%> <div id="tabs-3"> <p> <iframe src=a"/syscfg?dev_id=<%=dev_id%>&dev_type=<%=dev_type%>" width="100%" style="min-height:300px; height:100%"></iframe> </p> </div> <div id="tabs-4"> <p> <iframe src="/timecfg?dev_id=<%=dev_id%>&" width="100%" style="min-height:500px; height:100%"></iframe> </p> </div> <% }%> <div id="tabs-5"> <p> <iframe src="/eventqry?dev_id=<%=dev_id%>&date=<%=date %>" width="100%" style="min-height:350px; height:100%"></iframe> </p> </div> <%if(dev_type == comm_info.DEV_TYPE_FISH_PH) {%> <div id="tabs-6"> <p> <iframe src="/trendchart?dev_id=<%=dev_id%>&date=<%=date %>&dev_type=<%=dev_type%>&var_type=3" width="100%" style="min-height:450px; height:100%"></iframe> </p> </div> <%}%> <%if(dev_type == comm_info.DEV_TYPE_BARN_CO2) {%> <div id="tabs-7"> <p> <iframe src="/trendchart?dev_id=<%=dev_id%>&date=<%=date %>&dev_type=<%=dev_type%>&var_type=4" width="100%" style="min-height:450px; height:100%"></iframe> </p> </div> <%}%> <%if(dev_type == comm_info.DEV_TYPE_BARN_CO2) {%> <div id="tabs-8"> <p> <iframe src="/trendchart?dev_id=<%=dev_id%>&date=<%=date %>&dev_type=<%=dev_type%>&var_type=5" width="100%" style="min-height:450px; height:100%"></iframe> </p> </div> <%}%>TrendChartServlet.java主要代码
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { String dev_id = req.getParameter("dev_id"); String date = "2016-01-06"; int dev_type = Byte.parseByte(req.getParameter("dev_type")); int var_type = Byte.parseByte(req.getParameter("var_type")); DateFormat date_format = new SimpleDateFormat("yyyy-MM-dd"); if(dev_id != null) { req.setAttribute("dev_id", dev_id); //get his data dev_his_data his_data = new dev_his_data(); int i = 0; try { his_data.date_s = date; his_data.date = date_format.parse(date); } catch (ParseException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } try { //logger.debug("get his data"); dev_his_data.db2_get_history_info_sel(his_data, dev_id, 0, dev_type, var_type); } catch (SQLException e) { // TODO Auto-generated catch block //logger.debug(e); } try { dev_his_data.db2_get_history_info_sel(his_data, dev_id, 1, dev_type, var_type); } catch (SQLException e) { } try { dev_his_data.db2_get_history_info_sel(his_data, dev_id, 2, dev_type, var_type); } catch (SQLException e) { } try { dev_his_data.db2_get_history_info_sel(his_data, dev_id, 3, dev_type, var_type); } catch (SQLException e) { } req.setAttribute("his_data", his_data); req.setAttribute("dev_type", dev_type); req.setAttribute("var_type", var_type); jsp.forward(req, resp); } }dev_his_data.java主要代码
public static byte db2_get_history_info_sel(dev_his_data his_data, String dev_id ,int date_index, int dev_type, int var_type) throws SQLException { Connection conn=null; java.sql.CallableStatement cstmt = null; try { conn = DataAccessObject.dataSource.getConnection(); if(conn.isClosed()) { //logger.debug("failed connecting to the Database!"); return -1; } cstmt = conn.prepareCall("{call get_history_qry_info(?,?,?,?,?,?)}"); cstmt.setString(1, dev_id); java.sql.Date date= new java.sql.Date(0); date.setYear(his_data.date.getYear()); date.setMonth(his_data.date.getMonth()); date.setDate(his_data.date.getDate()); cstmt.setDate(2, date); cstmt.setInt(3, date_index); cstmt.setInt(4, dev_type); cstmt.setInt(5, var_type); cstmt.registerOutParameter(6, Types.VARCHAR); cstmt.executeQuery(); String out = cstmt.getString(6); String[] var=out.split(","); int time_interval_cnt = his_data.HISTORY_DATA_MAX_NUM/4; int cnt = (date_index*time_interval_cnt); for(int i=0; i<time_interval_cnt; i++) { his_data.history_data_item[cnt].tmp =Short.valueOf(var[i*3+1]); his_data.history_data_item[cnt].oxygen = Short.valueOf(var[i*3+2]); if((dev_type == comm_info.DEV_TYPE_BARN_CO2)&&(var_type== 5)) { his_data.history_data_item[cnt].tmp *= 10; } his_data.history_data_item[cnt].validate = Byte.valueOf(var[i*3+0]); cnt+=1; } } finally { DataAccessObject.close(null, cstmt, conn); } return 0; }现在的问题是整个页面出来的时候1和5 全部加载完毕，但是读到的数据 都是5的，怎么解决呢。求指点。
解决方案
你应该把这么长的代码分割成小块的，测试每个小块是不是都正常工作！
时间： 2024-09-20 00:43:36