微信小程序wx.upload上传图片后台java

前台代码:

      bindPhoto(e) { 
    
     var that = 
     this; 
    
      wx.chooseImage({ 
    
      count: 
     1, 
    
      sizeType: [ 
     'original', 
     'compressed'], 
     // 指定原图或者压缩图 
    
      sourceType: [ 
     'album', 
      'camera'], 
     // 指定图片来源 
    
      success: 
     function (res) { 
    
     var tempFilePaths = res.tempFilePaths; 
    
      wx.uploadFile({ 
    
      url: 
     'http://192.168.31.111:8007/goods/wx_upload.do', 
    
      filePath: tempFilePaths[ 
     0], 
    
      name: 
     'file', 
    
      header: { 
     "Content-Type": 
      "multipart/form-data" }, 
    
      formData:{ 
    
     'session_token': token 
    
      }, 
    
      success: 
     function(res){ 
    
     var cur_data = res.data; 
    
      console.log(cur_data.fileName); 
    
      }, 
    
      fail: 
     function (res) { 
    
      console.log( 
     '上传失败'); 
    
      } 
    
      }) 
    
      } 
    
      }) 
    
      }, 
    
    后台代码

/*微信小程序上传图片测试*/
@RequestMapping("wx_upload.do")
public void wx_upload(HttpServletRequest request, HttpServletResponse response) throws Exception {
    request.setCharacterEncoding("utf-8");  //设置编码
    //获得磁盘文件条目工厂
    DiskFileItemFactory factory = new DiskFileItemFactory();
    ServletFileUpload upload = new ServletFileUpload(factory);
    String fileId = null;
    String json = "{\"success\":false,\"fileName\":\"" + fileId + "\"}";
    String pathUrl = FSDefaultMgr.E_DEFAULT.getDefaultUploadPathUrl();//获取图片服务器路径
    InputStream inStream = null;
    try {
        //可以上传多个文件
        List<FileItem> list = (List<FileItem>)upload.parseRequest(request);
        for(FileItem item : list){
            //获取表单的属性名字
            String name = item.getFieldName();
            //如果获取的 表单信息是普通的 文本 信息
            if(item.isFormField()){
                //获取用户具体输入的字符串 ，名字起得挺好，因为表单提交过来的是 字符串类型的
                String value = item.getString() ;
                request.setAttribute(name, value);
            }else {
                //获取路径名
                String filename = item.getName();
                request.setAttribute(name, filename);
                inStream = item.getInputStream() ;
            }
        }
        ByteArrayOutputStream swapStream = new ByteArrayOutputStream();
        byte[] buff = new byte[100];
        int rc = 0;
        while ((rc = inStream.read(buff, 0, 100)) > 0) {
            swapStream.write(buff, 0, rc);
        }
        byte[] bytes = swapStream.toByteArray();
        fileId = FastDFSClient.uploadFile(bytes, "20161545454.png", null);
        if (fileId != null) {
            json = "{\"success\":true,\"pathUrl\":\"" + pathUrl + "\",\"fileName\":\"" + fileId + "\"}";
        }
        response.getWriter().write(json);
        response.getWriter().flush();
        response.getWriter().close();
    }catch (Exception e) {
        e.printStackTrace();
    }
}

注意事项:(http://blog.csdn.net/lwphk/article/details/43015829)

微信小程序wx.upload上传图片后台java

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