plupload分段上传文件，struts2后台接收

一个简单的plupload例子

在网上找了许多例子，都不能用，有些后台竟然还是servlet？

后来在这里找到一份简单而且能用的例子plupload组件结合struts2完成上传 ，不过他的没有分段上传，我就自己改了下。

下面是内容：

jsp代码

<input type="hidden" id="saveFileName"/><button id="pickfiles" class="outButton btn btn-success">导入Excel</button><span id="filelist" ><font style="color:#666666;" size="2">您的浏览器未安装 Flash, Silverlight, Gears, BrowserPlus 或者支持 HTML5.</font></span>

js代码

function initPlupload(){var uploader = new plupload.Uploader({        runtimes : 'html5,flash,silverlight,html4',        browse_button : 'pickfiles', // you can pass an id...        //container: document.getElementById('container'), // ... or DOM Element itself        url : appPath + "/personInfo/personExcel_uploadExcel.do",        flash_swf_url : appPath + '/js/lib/plupload/Moxie.swf',        silverlight_xap_url : appPath + '/js/lib/plupload/Moxie.xap',        chunk_size : '1mb',        filters : {            max_file_size : '20mb',//限制文件大小            mime_types: [                { title : "Excel files", extensions : "xlsx,xls"}            ], //限制文件类型            prevent_duplicates : true //不允许选取重复文件        },        init: {        BeforeUpload :function(up,file){        //分段上传，会获取不到原名，所以这里添加了一个额外的参数用来传递文件名        up.settings.multipart_params = {trueName : file.name};        },            PostInit: function() {                document.getElementById('filelist').innerHTML = '';            },            FilesAdded: function(up, files) {                if(up.files.length>1) {                    alert("只允许上传单个文件！");                    return;                }                plupload.each(files, function(file) {                    document.getElementById('filelist').innerHTML += '<span id="' + file.id + '"><font style="color:#666666;" size="2">' + file.name + ' (' + plupload.formatSize(file.size) + ')</font> <b></b></span>';                    up.start();                });            },            UploadProgress: function(up, file) {                document.getElementById(file.id).getElementsByTagName('b')[0].innerHTML = '<span>' + file.percent + "%</span>";            },            UploadComplete: function(up, file) {                if(up.files.length<1) {                    alert("请点击选择文件，再进行上传！");                    return;                }                alert("上传成功！");                setTimeout(function(){                $("#filelist").empty();                }, 10000);                //up.destroy();            },        FileUploaded:function(uploader,file,responseObject) {            var response = JSON.stringify(responseObject.response);            console.log("response："+response);            $("#saveFileName").val(response);        },        Error: function(up, err) {        if("Duplicate file error." == err.message){        alert("上传失败，不允许选取重复文件");        }else{        alert("上传失败，"+err.message);        }        setTimeout(function(){                $("#filelist").empty();                }, 10000);        }        }    });    uploader.init();}

action代码

全局属性

//块总数private int chunks = -1;//当前块private int chunk = 1;private String fileFileName; //文件名称，在分段时变成blob，分段无用private String fileContentType; //文件类型  private File file; //上传过来的文件private String saveFileName;private String trueName;//带参传过来的真实文件名//一些getter、setter方法在此省略

方法

public void uploadExcel(){String savePath = ServletActionContext.getServletContext().getRealPath("upload/plupload");System.out.println("\n\n\n\n\n"+savePath);        //String name = UUID.randomUUID().toString().replace("-", "");//唯一id，这里在分段上传时无用        File uploadfile = null;        String saveFileName = null;        //saveFileName =   name + "_" + fileFileName;        saveFileName = trueName;        System.out.println("saveFileName："+saveFileName);        System.out.println("trueName："+trueName);        uploadfile = new File(savePath, saveFileName);        if (!uploadfile.getParentFile().exists()) {            uploadfile.getParentFile().mkdirs();        }                if(chunk==0 && uploadfile.exists()){        uploadfile.delete();        uploadfile = new File(savePath, saveFileName);        }                FileOutputStream fos = null;        FileInputStream fis = null;        try {                if(uploadfile.exists()){        fos = new FileOutputStream(uploadfile, true);        }else{        fos = new FileOutputStream(uploadfile);                }            fis = new FileInputStream(file);            byte[] buffers = new byte[1024];            int len = 0;            while ((len = fis.read(buffers)) != -1) {                fos.write(buffers, 0, len);            }                        if(chunk == chunks-1){            //一个完整的文件上传            }                        response.setContentType("text/html;charset=UTF-8");            response.getWriter().write(saveFileName);        } catch (IOException e) {e.printStackTrace();response.setContentType("text/html;charset=UTF-8");            try {response.getWriter().write("上传发生错误");} catch (IOException e1) {e1.printStackTrace();}}finally {            try {fos.close();fis.close();} catch (IOException e) {e.printStackTrace();}        }    }