一个volley自定义请求支持文件上传：MultipartRequest。

MultipartRequestParams params = new MultipartRequestParams();  params.put("userName",username);  params.put("myfiles",files);  getVolleyRequestQueue().add(new MultipartRequest(Request.Method.POST, params, URL, new Response.Listener() {              @Override              public void onResponse(String response) {                  //TODO              }          }, new Response.ErrorListener() {              @Override              public void onErrorResponse(VolleyError error) {                  //TODO              }          }));

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