【Android Net】Volley实现（multipart/form-data）Post请求

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private void doInit(final Map<String, String> params, final File uploadFile) {    String initUrl = "http://192.168.1.1:8080/cld/init";    final String boundary = "-----------------" + UUID.randomUUID().toString();    JsonObjectRequest request = new JsonObjectRequest(Request.Method.POST, initUrl, null,        new Response.Listener<JSONObject>() {            @Override            public void onResponse(JSONObject jsonObject) {                //TO-DO            }        }, new Response.ErrorListener() {            @Override            public void onErrorResponse(VolleyError volleyError) {                //TO-DO            }        }) {        @Override        public String getBodyContentType() {            return "multipart/form-data; boundary=" + boundary;        }        @Override        public byte[] getBody() {            ByteArrayOutputStream bos = new ByteArrayOutputStream();            List<BasicNameValuePair> pairs = new ArrayList<BasicNameValuePair>();            if(params != null){                Set<String> keys = params.keySet();                for(Iterator<String> i = keys.iterator(); i.hasNext();) {                    String key = (String)i.next();                    pairs.add(new BasicNameValuePair(key, params.get(key)));                }            }            int size = pairs.size();            StringBuffer sb= new StringBuffer() ;            for(int i=0; i<size; i++) {                sb.append(TWO_HYPHENS).append(boundary).append(LINE_END);                sb.append("Content-Disposition: form-data; name=\"").append(pairs.get(i).getName()).append("\"").append(LINE_END);                sb.append(LINE_END) ;                sb.append(pairs.get(i).getValue()).append(LINE_END) ;            }            sb.append(TWO_HYPHENS).append(boundary).append(TWO_HYPHENS).append(LINE_END);            try {                bos.write(sb.toString().getBytes("utf-8"));            } catch (IOException e) {                e.printStackTrace();            }            return bos.toByteArray();        }    };    mQueue.add(request);}
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