对后台换行的文本实现页面上换行
<tr>
<td align="right" nowrap="nowrap">历史回访情况：</td>
<td colspan="5"><%
if(request.getAttribute("CALLBACK_SITUATION")!=null){
String retrun_deatail=String.valueOf(request.getAttribute("CALLBACK_SITUATION"));
retrun_deatail=retrun_deatail.replaceAll("\n","<br>");
out.print(retrun_deatail);
}
%></td>
</tr>