今天遇到需要ShowModalDialog打开页面，通过acceptanceIds 参数值后台过滤出相应结果

前台  

var url = "loadAcceptance.action?acceptanceIds=" + id("acceptanceIds").value ;
  var returnValue = ShowModalDialog(url,1000,600);

后台：

 public String loadAcceptance() {
  
  if (StringUtils.isNotBlank(acceptanceIds)) {
   ascceptances =  expenseService.loadAscceptances(acceptanceIds, this.getBmYear());
  }

  return "ascceptances_detail";
 }

结果：

 后台显示acceptanceIds 值为null

思考后得知ShowModalDialog 无法直接将url中的参数值传递到后台如需传递到后台需先找jsp页面进行中转处理

解决方案：

前台页面：

    var url = "popub_acceptance.jsp?acceptanceIds=" + id("acceptanceIds").value ;
  var returnValue = uf_ShowModalDialog(url,1000,600);

中转jsp页面popub_acceptance.jsp

</head>
<% 
 String ls_QueryString = request.getQueryString(); 
%>
<body bgcolor="#FFFFFF" text="#000000" leftmargin=0 topmargin=0 >
  <table width="100%" border="0" height="100%">
    <tr>
      <td>
        <iframe id=iframe_list src="loadAcceptance.action?<%=ls_QueryString%>"  frameborder=0 width=100% height="100%" scrolling="auto" align=center valign=top></iframe>
      </td>
    </tr>
  </table>
</body>
</html>

后台

 public String loadAcceptance() {
  
  if (StringUtils.isNotBlank(acceptanceIds)) {
   ascceptances =  expenseService.loadAscceptances(acceptanceIds, this.getBmYear());
  }

  return "ascceptances_detail";
 }