ajaxfileupload.js与commons-fileupload文件上传

1 commons-fileupload maven依赖

<dependency>
   <groupId>commons-fileupload</groupId>
    <artifactId>commons-fileupload</artifactId>
    <version>1.3.2</version>
</dependency>

2 ajaxfileupload.js
这里就不给资源地址了,直接整个文件内容如下:

jQuery.extend({

    createUploadIframe: function(id, uri)
    {
        //create frame
        var frameId = 'jUploadFrame' + id;

        if(window.ActiveXObject) {
            if(jQuery.browser.version=="9.0") {
                io = document.createElement('iframe');
                io.id = frameId;
                io.name = frameId;
            } else if(jQuery.browser.version=="6.0"||jQuery.browser.version=="7.0"||jQuery.browser.version=="8.0") {
                var io = document.createElement('<iframe id="' + frameId + '" name="' + frameId + '" />');
                if(typeof uri== 'boolean'){
                    io.src = 'javascript:false';
                }
                else if(typeof uri== 'string'){
                    io.src = uri;
                }
            }
        }
        else {
            var io = document.createElement('iframe');
            io.id = frameId;
            io.name = frameId;
        }
        io.style.position = 'absolute';
        io.style.top = '-1000px';
        io.style.left = '-1000px';

        document.body.appendChild(io);

        return io;
    },
    createUploadForm: function(id, fileElementId,data)
    {

        //create form
        var formId = 'jUploadForm' + id;
        var fileId = 'jUploadFile' + id;
        var form = jQuery('<form  action="" method="POST" name="' + formId + '" id="' + formId + '" enctype="multipart/form-data"></form>');
        var oldElement = jQuery('#' + fileElementId);
        var newElement = jQuery(oldElement).clone();
        jQuery(oldElement).attr('id', fileId);
        jQuery(oldElement).before(newElement);
        jQuery(oldElement).appendTo(form);
        if (data) {
            for (var i in data) {
                $('<input type="hidden" name="' + i + '" value="' + data[i] + '" />').appendTo(form);
            }
        }
        //set attributes
        jQuery(form).css('position', 'absolute');
        jQuery(form).css('top', '-1200px');
        jQuery(form).css('left', '-1200px');
        jQuery(form).appendTo('body');
        return form;
    },
    handleError: function( s, xhr, status, e ) 		{
// If a local callback was specified, fire it
        if ( s.error ) {
            s.error.call( s.context || s, xhr, status, e );
        }

        // Fire the global callback
        if ( s.global ) {
            (s.context ? jQuery(s.context) : jQuery.event).trigger( "ajaxError", [xhr, s, e] );
        }
    },
    ajaxFileUpload: function(s) {
        // TODO introduce global settings, allowing the client to modify them for all requests, not only timeout
        s = jQuery.extend({}, jQuery.ajaxSettings, s);
        var id = s.fileElementId;
        var form = jQuery.createUploadForm(id, s.fileElementId,s.data);
        var io = jQuery.createUploadIframe(id, s.secureuri);
        var frameId = 'jUploadFrame' + id;
        var formId = 'jUploadForm' + id;

        if( s.global && ! jQuery.active++ )
        {
            // Watch for a new set of requests
            jQuery.event.trigger( "ajaxStart" );
        }
        var requestDone = false;
        // Create the request object
        var xml = {};
        if( s.global )
        {
            jQuery.event.trigger("ajaxSend", [xml, s]);
        }

        var uploadCallback = function(isTimeout)
        {
            // Wait for a response to come back
            var io = document.getElementById(frameId);
            try
            {
                if(io.contentWindow)
                {
                    xml.responseText = io.contentWindow.document.body?io.contentWindow.document.body.innerHTML:null;
                    xml.responseXML = io.contentWindow.document.XMLDocument?io.contentWindow.document.XMLDocument:io.contentWindow.document;

                }else if(io.contentDocument)
                {
                    xml.responseText = io.contentDocument.document.body?io.contentDocument.document.body.innerHTML:null;
                    xml.responseXML = io.contentDocument.document.XMLDocument?io.contentDocument.document.XMLDocument:io.contentDocument.document;
                }
            }catch(e)
            {
                jQuery.handleError(s, xml, null, e);
            }
            if( xml || isTimeout == "timeout")
            {
                requestDone = true;
                var status;
                try {
                    status = isTimeout != "timeout" ? "success" : "error";
                    // Make sure that the request was successful or notmodified
                    if( status != "error" )
                    {
                        // process the data (runs the xml through httpData regardless of callback)
                        var data = jQuery.uploadHttpData( xml, s.dataType );
                        if( s.success )
                        {
                            // ifa local callback was specified, fire it and pass it the data
                            s.success( data, status );
                        };
                        if( s.global )
                        {
                            // Fire the global callback
                            jQuery.event.trigger( "ajaxSuccess", [xml, s] );
                        };
                    } else
                    {
                        jQuery.handleError(s, xml, status);
                    }

                } catch(e)
                {
                    status = "error";
                    jQuery.handleError(s, xml, status, e);
                };
                if( s.global )
                {
                    // The request was completed
                    jQuery.event.trigger( "ajaxComplete", [xml, s] );
                };


                // Handle the global AJAX counter
                if(s.global && ! --jQuery.active)
                {
                    jQuery.event.trigger("ajaxStop");
                };
                if(s.complete)
                {
                    s.complete(xml, status);
                } ;

                jQuery(io).unbind();

                setTimeout(function()
                { try
                {
                    jQuery(io).remove();
                    jQuery(form).remove();

                } catch(e)
                {
                    jQuery.handleError(s, xml, null, e);
                }

                }, 100);

                xml = null;

            };
        }
        // Timeout checker
        if( s.timeout > 0 )
        {
            setTimeout(function(){

                if( !requestDone )
                {
                    // Check to see ifthe request is still happening
                    uploadCallback( "timeout" );
                }

            }, s.timeout);
        }
        try
        {
            var form = jQuery('#' + formId);
            jQuery(form).attr('action', s.url);
            jQuery(form).attr('method', 'POST');
            jQuery(form).attr('target', frameId);
            if(form.encoding)
            {
                form.encoding = 'multipart/form-data';
            }
            else
            {
                form.enctype = 'multipart/form-data';
            }
            jQuery(form).submit();

        } catch(e)
        {
            jQuery.handleError(s, xml, null, e);
        }
        if(window.attachEvent){
            document.getElementById(frameId).attachEvent('onload', uploadCallback);
        }
        else{
            document.getElementById(frameId).addEventListener('load', uploadCallback, false);
        }
        return {abort: function () {}};

    },

    uploadHttpData: function( r, type ) {
        var data = !type;
        data = type == "xml" || data ? r.responseXML : r.responseText;
        // ifthe type is "script", eval it in global context
        if( type == "script" )
        {
            jQuery.globalEval( data );
        }

        // Get the JavaScript object, ifJSON is used.
        if( type == "json" )
        {
            eval( "data = " + $(data).html() );
        }

        // evaluate scripts within html
        if( type == "html" )
        {
            jQuery("<div>").html(data).evalScripts();
        }

        return data;
    }
});

3 前端代码

<div class="ibox float-e-margins">
    <div class="ibox-content">
        <div class="form-horizontal" id="deptInfoForm">

            <div class="row">
                <label class="col-sm-3 control-label">流程文件</label>
                <div class="col-sm-5">
                    <input type="file" class="form-control" id="processfile" name="processfile">
                </div>
            </div>
            <div class="row btn-group-m-t">
                <div class="col-sm-6"></div>
                <div class="col-sm-6">
                    <@button btnCss="info" name="部署" id="ensure" icon="fa-check" clickFun="ProcessInfoDlg.addSubmit()"/>
                    <@button btnCss="danger" name="取消" id="cancel" icon="fa-eraser" clickFun="ProcessInfoDlg.close()"/>
                </div>
            </div>
        </div>
    </div>
</div>

4 js代码

ProcessInfoDlg.addSubmit = function() {

    var ff = $("#processfile").val();
    if(!ff) {
        window.alert("请选择上传文件");
        return;
    }
    //var processKey=$("#processKey").val();
    var processKey = "dfsasa";
    jQuery.ajaxFileUpload({
        url: "/process/addProcess",
        loading:true,
        type: "POST",
        secureuri: false,
        fileElementId: "processfile",
        dataType: "json",
        data: {processKey:processKey},
        error: function(data, status, e) {
            window.alert("部署失败:" + data.message + "!");
        },
        success: function(data, status) {
            console.log(data);
            if(data.success){
                Feng.success("部署成功!");
                window.parent.ProcesssInfo.table.refresh();
                ProcessInfoDlg.close();
            }else{
                window.alert("部署失败:" + data.message + "!");
                ProcessInfoDlg.close();
            }

        }
    });
}

参数说明:
1、url　　　　　　　　　　 上传处理程序地址
2、fileElementId　　　　　 文件选择框的id属性，即的id
3、secureuri　　　　　　　 是否启用安全提交，默认为false
4、dataType　　　　　　　 服务器返回的数据类型。可以为xml,script,json,html。如果不填写，jQuery会自动判断
5、success　　　　　　　　服务器响应成功后的处理函数 ，参数data就是服务器返回的数据
6、error　　　　　　　　　 服务器响应失败后的处理函数
7、data 　　　　　　　　　 自定义参数，当有数据要和上传的文件一起传到后台处理的时候会用到。这里注意，数据格式比较严格{param:[{‘param1’:‘value1’,‘param2’:‘value2’ },{‘param1’:‘value3’,‘param2’:‘value4’ }]}, 其中单引号不能改为双引号
8、type 　　　　　　　　　 提交数据的方式，一般为post

5 后端代码

@RequestMapping("/addProcess")
    @ResponseBody
    public JsonResult addProcess(@RequestParam("processfile") MultipartFile processfile,@RequestParam("processKey")String processKey) {
        try {
            String oriName = processfile.getOriginalFilename();
            String newName = new Date().getTime()+"_"+oriName;
            File tempFile = new File("G:\\myproject\\musi\\musi-acititi\\src\\main\\resources\\bpmn\\test"+File.separator+newName);
            processfile.transferTo(tempFile);
        } catch (Exception e) {
            return new JsonResult(false);
        }
        return new JsonResult(true);
    }