微信开发之访问微信接口（带参数）

public  JSONObject  sendReqMsg(String url,String jsonContext,String token)throws UnsupportedEncodingException{  
        JSONObject responseBody=null;
         try {  
             HttpClient httpclient = new DefaultHttpClient();
             HttpPost httpPost= new HttpPost(url+"?access_token="+token);  
             //发送json格式的数据 
             StringEntity myEntity = new StringEntity(jsonContext,"text/plain","utf-8");  
             //设置需要传递的数据 
             httpPost.setEntity(myEntity);  
             // Create a custom response handler 
            ResponseHandler<JSONObject> responseHandler = new ResponseHandler<JSONObject>() {  
                //对访问结果进行处理 
                public JSONObject handleResponse(  
                        final HttpResponse response) throws ClientProtocolException, IOException {  
                    int status = response.getStatusLine().getStatusCode();  
                    if (status >= 200 && status < 300) {  
                        HttpEntity entity = response.getEntity();  
                        if(null!=entity){  
                            String result= EntityUtils.toString(entity);  
                           // result=new String(result.getBytes("iso-8859-1"),"utf-8");
                            //根据字符串生成JSON对象 
                            JSONObject resultObj = getJSONObject(result); 
                            return resultObj;  
                        }else{  
                            return null;  
                        }  
                    } else {  
                        throw new ClientProtocolException("Unexpected response status: " + status);  
                    }  
                }  

            };  
          //返回的json对象 
             responseBody = httpclient.execute(httpPost, responseHandler);  
        } catch (Exception e) {  
            // TODO Auto-generated catch block 
            e.printStackTrace();  
        }  
         return responseBody;  
    }