android设置post请求服务器时参数的设置以及JSON参数的设置

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android post的数据的时候，一些参数设置如下：

                                ObjectMapper mapper = new ObjectMapper();Map<String, Object> paramsList = new HashMap<String, Object>();HttpPost requestPost = new HttpPost(url);requestPost.setHeader("charset", HTTP.UTF_8);//httppost.addHeader("Content-Type", "application/json"); //requestPost.addRequestHeader("Content-Type","text/html;charset=UTF-8");/*//封装JSON对象JSONObject paramsList = new JSONObject();*/int[] promotions = {1,2};paramsList.put("shop_id", "14");paramsList.put("order_id", "77");paramsList.put("promotion", promotions);paramsList.put("feedbackInfo", "有空调，有免费的WiFi哦");paramsList.put("feedbackTime", "1404882661000");content = mapper.writeValueAsString(paramsList);//绑定到请求 EntryStringEntity se = new StringEntity(content, HTTP.UTF_8");//paramsList.toString()requestPost.setEntity(se);//放松请求HttpResponse httpResponse = new DefaultHttpClient().execute(requestPost);if (httpResponse.getStatusLine().getStatusCode() == 200) { // 可能空指针String response = EntityUtils.toString(                                                   httpResponse.getEntity(), HTTP.UTF_8);                                Log.d(LOG_TAG, response);                                return response;

}

ObjectMapper是开源框架jackson

因为post没法直接添加数组，所以可以使用ObjectMapper.writeValueAsString()方法是把JSONObject转化成字符串的方法。

下面的参数设置较简单，只是一般JSON的设置：

HttpPost request = new HttpPost(url);// 先封装一个 JSON 对象JSONObject param = new JSONObject();param.put("name", "rarnu");param.put("password", "123456");// 绑定到请求 EntryStringEntity se = new StringEntity(param.toString()); request.setEntity(se);// 发送请求HttpResponse httpResponse = new DefaultHttpClient().execute(request);// 得到应答的字符串，这也是一个 JSON 格式保存的数据String retSrc = EntityUtils.toString(httpResponse.getEntity());// 生成 JSON 对象JSONObject result = new JSONObject( retSrc);String token = result.get("token");

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