页面隐藏form下载文件

页面隐藏form下载文件

0 == $("#ExcelForm").length && $(document.body).append('<form target="ExcelIframe" id="ExcelForm">'
           +'<input type="hidden" id="Excel_queryKey" name="processIds" />'
           +'</form><iframe name="ExcelIframe" style="display:none; visibility: hidden;"></iframe>');

       $("#Excel_queryKey").val(processId);

       var b = document.getElementById("ExcelForm");
       b.method = "post";
       b.action = "<%=request.getContextPath()%>/process/data/download.do";
       b.submit();

function downloadFile(actoinURL,filePath,fileName){
    var form = $("<form>");   
    $('body').append(form);  
        form.attr('style','display:none');   
        form.attr('target','');
        form.attr('method','post');
        form.attr('action',actoinURL);//下载文件的请求路径


        var input1 = $('<input>'); 
        input1.attr('type','hidden'); 
        input1.attr('name','filePath'); 
        input1.attr('value',filePath);
        form.append(input1);  
        var input2 = $('<input>'); 
        input2.attr('type','hidden'); 
        input2.attr('name','fileName'); 
        input2.attr('value',fileName);
        form.append(input2);

        form.submit();    

    };

向页面添加隐藏的forme后：

1. 设定要提交的参数在input中
2. 设置提交方式（post/get）
3. 设定action
4. 提交