1.点击按钮触发导出事件

//导出
function outOk(id){
var ids=id;
self.location="DownLoadMerchKey?ids="+ids;
}

2.导出servlet

MerchantsDao merchantsDao =(MerchantsDao)SpringManager.getBean("merchantsDao");

//获取参数
String id=request.getParameter("ids");
int mId=Integer.parseInt(id);

String roleNames = (String) session.getAttribute("roleName"); //获取角色名称
if(StringUtils.isEmpty(roleNames)||!"系统管理员".equals(roleNames)){
log.PrintLogINFO(ModelName, ClassName, MethodName, "--获取角色身份信息返回失败结束(不是系统管理员，没有权限)--");
}else{
Merchants merchants=merchantsDao.findMerchantsByMerchId(mId);
request.setAttribute("merchants", merchants);
log.PrintLogINFO(ModelName, ClassName, MethodName, "--导出商户密钥Excel返回成功结束--");
LogUtil.insertLogINFOOutOk((Integer) session.getAttribute("id"),(String) session.getAttribute("nameLogin"),
"导出了商户序列号为"+id+"的密钥");

request.getRequestDispatcher("JSP/merchantsJsp/merchKeyOutExcel.jsp").forward(request,response);
}

3.导出值页面

<%
response.setContentType("text/plain");
String filename="商户密钥.txt";
response.setHeader("Content-disposition","attachment;filename="+new String(filename.getBytes("gbk"),"iso8859-1"));
Merchants merchants=(Merchants)request.getAttribute("merchants");
%>
商户密钥
公钥：
<% String gy=merchants.getPubkey(); if(gy==null||"".trim().equals(gy)){ gy=""; } out.print(gy);%>
私钥：
<% String sy=merchants.getPrikey(); if(sy==null||"".trim().equals(sy)){ sy=""; } out.print(sy);%>