xutils3 批量文件上传

 前几天开发安卓要用到文件批量上传，就是上传图片，视频，文件之类的用到Xutil3框架，用

RequestParams params = new RequestParams(url);

params.addParameter("file", new File(file));

只能上传单张，不可能上传多张
于是采用for循环，
for（int i=0;i<fileList.size();i++）{

params.addParameter("file", new File(fileList.get(i)));

}
params.setMultipart(true);
    x.http().post(params, new org.xutils.common.Callback.CacheCallback<String>() {
        @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
        @Override
        public void onSuccess(String s) {
            try {
                JSONObject obj = new JSONObject(s);
               
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
        }

        @Override
        public void onError(Throwable throwable, boolean b) {
            Toast.makeText(AttendanceActivity.this, "错误:" + throwable.getMessage(), Toast.LENGTH_SHORT).show();
        }

        @Override
        public void onCancelled(CancelledException e) {

        }

        @Override
        public void onFinished() {

        }

        @Override
        public boolean onCache(String s) {
            return false;
        }
    });
}
还是不行后发现研究api 发现文件需要
multipart/data  刚好xutil3 有
MultipartBody这个类，所有就有了
File file = new File(upFileName);    List<KeyValue> list = new ArrayList<KeyValue>();for(int i=0;i<fileList.size();i++){    list.add(new KeyValue("file",file));}    MultipartBody body=new MultipartBody(list,"UTF-8");    params.setRequestBody(body);    params.setMultipart(true);    x.http().post(params, new org.xutils.common.Callback.CacheCallback<String>() {        @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)        @Override        public void onSuccess(String s) {            try {                JSONObject obj = new JSONObject(s);                  }            } catch (Exception e) {                e.printStackTrace();            }        }        @Override        public void onError(Throwable throwable, boolean b) {            Toast.makeText(AttendanceActivity.this, "错误:" + throwable.getMessage(), Toast.LENGTH_SHORT).show();        }        @Override        public void onCancelled(CancelledException e) {        }        @Override        public void onFinished() {        }        @Override        public boolean onCache(String s) {            return false;        }    });}

关键代码
 List<KeyValue> list = new ArrayList<KeyValue>();
    list.add(new KeyValue("file",file));
    MultipartBody body=new MultipartBody(list,"UTF-8");
    params.setRequestBody(body);

这样就完美解决xutil3 批量文件上传了
博客园地址：http://www.cnblogs.com/lizhexun/articles/6927323.html