参考[老]post传参和get传参-https://help.fanruan.com/finereport10.0/doc-view-1090.html
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reportlets 里面自己拼接好了
var printurl="http://localhost:8075/webroot/decision/view/report";
var reportlets ="[{reportlet: '1.cpt', p1: 'a',p2:'b',p3,'c'}]";
var config = {
url : printurl,
isPopUp : false,
data : {
reportlets: reportlets //将参数放到data里面传到指定的URL中
}
};FR.doURLPDFPrint(config);