*1.bootstrap-fileinput 外掛git下載地址

*

2.解決使用bootstrap-fileinput得到返回值

上傳圖片

        $("#file-0a").fileinput({
            uploadUrl : "/upload_img",//上傳圖片的url
            allowedFileExtensions : [ 'jpg', 'png', 'gif' ],
            overwriteInitial : false,
            maxFileSize : 1000,//上傳檔案最大的尺寸
            maxFilesNum : 1
 
,//上傳最大的檔案數量
            initialCaption: "請上傳商家logo",//文字框初始話value
            //allowedFileTypes: ['image', 'video', 'flash'],
            slugCallback : function(filename) {
                return filename.replace('(', '_').replace(']', '_');
            }
        });

注意上傳圖片事件完之後，得到返回值寫法

        $('#file-0a'
 
).on('fileuploaded', function(event, data, previewId, index) {
             var form = data.form, files = data.files, extra = data.extra,
              response = data.response, reader = data.reader;
              console.log(response);//打印出返回的json
              console.log(response.paths);//打印出路徑
                });
 

jsp頁面

<input id="file-0a" class="file" type="file" multiple
                        data-min-file-count="1" name="upload_logo">

其中data-min-file-count=”1”是指檔案上傳最低數量

3.服務端程式碼

採用了spring自帶外掛上傳，框架為Springmvc
Bean

import java.util.List;

public class Picture {

    private List<String> paths;

    public List<String> getPaths()
    {
        return paths;
    }

    public void setPaths(List<String> paths)
    {
        this.paths = paths;
    }   
}

Controller

    @ResponseBody
    @RequestMapping(value="upload_img",method=RequestMethod.POST)
    public Picture uploadImage(@RequestParam MultipartFile[] upload_logo) throws IOException{

        log.info("上傳圖片");
        Picture pic = new Picture();
        List<String> paths = new ArrayList<String>();
        String dir = UploadUtil.getFolder();
        for(MultipartFile myfile : upload_logo){   
            if(myfile.isEmpty()){   
                log.info("檔案未上傳");   
            }else{   
                log.info("檔案長度: " + myfile.getSize());   
                log.info("檔案型別: " + myfile.getContentType());   
                log.info("檔名稱: " + myfile.getName());   
                log.info("檔案原名: " + myfile.getOriginalFilename());   
                log.info("========================================");
                //上傳檔案 返回路徑
                String path = UploadUtil.writeFile(myfile.getOriginalFilename(), dir, myfile.getInputStream());
                log.info("檔案路徑:"+path);
                paths.add(path);
            }   
        } 

        pic.setPaths(paths);
        return pic;
    }

uploadUtil

private static final Logger log = LoggerFactory.getLogger(UploadUtil.class);

    private UploadUtil() {
    }

    private static SimpleDateFormat fullSdf = new SimpleDateFormat("yyyyMMddHHmmssSSS");
    private static SimpleDateFormat folder = new SimpleDateFormat(
            "yyyy" + File.separator + "MM" + File.separator + "dd");

    /**
     * 返回yyyy File.separator MM File.separator dd格式的字串
     * 
     * @return
     */
    public static String getFolder() {
        return folder.format(new Date());
    }

/**
     * 檔案上傳
     * 
     * @param srcName
     *            原檔名
     * @param dirName
     *            目錄名
     * @param input
     *            要儲存的輸入流
     * @return 返回要儲存到資料庫中的路徑
     */
    public static String writeFile(String srcName, String dirName, InputStream input) throws IOException {

        log.info(srcName);

        // 取出上傳的目錄，此目錄是tomcat的server.xml中配置的虛擬目錄
        String uploadDir = ContextUtil.getSysProp("upload_dir");//設定你上傳路徑

        // 取出虛擬目錄的訪問路徑
        String virtualDir = ContextUtil.getSysProp("virtual_dir");//設定你虛擬目錄訪問路徑

        // 重新命名檔案
        if (null != srcName) {
            srcName = srcName.substring(srcName.indexOf("."));

        } else {
            srcName = ".jpg";
        }
        String filename = "";
        // 得到要上傳的檔案路徑
        filename = uploadDir + File.separator + dirName + File.separator + fullSdf.format(new Date()) + srcName;

        // 得到將要儲存到資料中的路徑
        String savePath = filename.replace(uploadDir, "");
        savePath = virtualDir + savePath.replace("\\", "/");

        File file = new File(filename);
        if (!file.getParentFile().exists()) {
            file.getParentFile().mkdirs();
        }
        FileOutputStream fos = new FileOutputStream(file);
        // 一次30kb
        byte[] readBuff = new byte[1024 * 30];
        int count = -1;
        while ((count = input.read(readBuff, 0, readBuff.length)) != -1) {
            fos.write(readBuff, 0, count);
        }
        fos.flush();
        fos.close();
        input.close();
        return savePath;
    }

4.解決上傳時候遇到的一些問題

如遇見點選上傳之後，進度條顯示為100%，jsp頁面顯示[Object,obejct]，那麼注意你後臺返回的是否為json物件。
如遇其他問題，可以留言，博主會盡快回復。