//自定义按钮导出excel

var url = '/decision/view/report?reportlets='; 

var pars = '&format=excel&extype=simple&__filename__=专利信息';  //自定义导出文件名称 

var path = '员工信息查询/下钻页/员工信息维护_专利信息.cpt';            //要导出的模板路径

//获取传入的参数

var a = _g().getWidgetByName("user_id").getValue();

var b = _g().getWidgetByName("user_name").getValue();

var c = _g().getWidgetByName("reward_class").getValue();

var d = _g().getWidgetByName("reward_name").getValue();

var e = _g().getWidgetByName("dept_id").getValue();

var f = _g().getWidgetByName("start_time").getValue();

var g = _g().getWidgetByName("end_time").getValue();

var json = []; 

//参数

var sheet1 = {reportlet: path, 

user_id: a,

user_name: b,

reward_name: d,

reward_class: c,

dept_id: e,

start_time: f,

end_time: g,

output:"1"};     //需要传递的参数

json.push(sheet1); 

jsonStr = encodeURIComponent(JSON.stringify(json)); 

url += jsonStr; 

url += pars; 

//alert(url); 

window.open(url);

https://help.fanruan.com/finereport/doc-view-3090.html 参考