ajax提交file文件 在后台action中是Formfile 报错

Question

java.lang.IllegalArgumentException: Cannot invoke com.msun.costAccount.form.BaseSalaryImpFrom.setUpfile - argument type mismatchfunction BaseSalaryImp(){
alert($("#date").val());
var date=$("#date").val();
alert($("#BaseSalaryImpupfile").val());
var upfile=$("#BaseSalaryImpupfile").val();
$.ajax({
type: "POST",
url: "${ctx}/BaseSalaryImpAction.do?type=import",
data:{"pojo.opdate":date,"pojo.upfile":upfile},
success: function(result){
if(result == 0){
alert("导入失败！");

}else if(result ==1){
alert("导入成功！");

        }
     }

    });

}

Answer 1

错误类型标明是参数非法，action中如何接受参数的呢？