远程调用服务器方法：POST方法

来源：互联网发布：ps调色插件知乎编辑：程序博客网时间：2024/05/29 11:01

通过调用远程服务器的接口，通过本服务器来操作远程服务器

此方法：主要关键是参数map的转化：map转化成String 时候，需要着重注意红色标记部分。转化成通过“&”连接的字符串。

（这个方法是我抄公司一个老师写的..因为我百度到的很多方法都不能用..）

controller层：

@RequestMapping(value = "ywjk/jgqlsavetablepost",method = RequestMethod.POST)@ResponseBodypublic String jgqlsavetablepost(HttpServletRequest request,HttpServletResponse response)throws Exception{String c = request.getParameter("c");configsetService.jgconfigshi("c", c, "jgqlsavetableforpost");return "添加成功！";}

因为controller层是通过servlet去获取前台传送的数据，因此在service层传map时，需要将前台传入的数据置入新建的map中：

而controller层的方法仅用于操作远程服务器用；需另写一个控制器去获取数据并同时调用此方法；

service层：

public void jgconfigshi(String mapname,String jgConfigJson,String urlend) {String sql = "select ip from xzqh where IP is not null and ip<>':8080'";List list = commonDao.getDataListByFullSql(sql);Map map = new HashMap();if(list.size()!=0){Map map2 = new HashMap();for(int i=0;i<list.size();i++){map = (Map)list.get(i);String ip = map.get("IP").toString();ip = "http://"+ip+"/sharesearch/app/search/model/ywjk/"+urlend+"";System.err.println(ip);map2.clear();map2.put(mapname, jgConfigJson);SmOthersService.sendPostRequest(ip, map2);}map2.clear();}}

/** *  * @param urlstr     调用接口的URL * @param _urlParam  调用接口需要的map * @return */public static String sendPostRequest(String urlstr, Map<String, String> _urlParam) {String strresponse = null;try {URL url = new URL(urlstr);String urlParamStr = "";for (Entry<String, String> entry : _urlParam.entrySet()) {urlParamStr += entry.getKey() + "=" + URLEncoder.encode(entry.getValue().toString().trim(), "utf-8") + "&";}HttpURLConnection connet = (HttpURLConnection) url.openConnection();connet.setConnectTimeout(5000);connet.setReadTimeout(30000000);connet.setDoOutput(true);connet.setDoInput(true);connet.setUseCaches(false);connet.setRequestMethod("POST");connet.setRequestProperty("Accept-Charset", "UTF-8");connet.setRequestProperty("Content-Type", "application/x-www-form-urlencoded;charset=UTF-8");DataOutputStream doutstream = new DataOutputStream(connet.getOutputStream());doutstream.writeBytes(urlParamStr);if (connet.getResponseCode() != 200) {throw new IOException(connet.getResponseMessage());}BufferedReader brd = new BufferedReader(new InputStreamReader(connet.getInputStream(), "utf-8"));StringBuilder sb = new StringBuilder();String line;while ((line = brd.readLine()) != null) {sb.append(line);}brd.close();doutstream.close();strresponse = sb.toString();System.out.println(sb.toString());} catch (MalformedURLException e) {e.printStackTrace();} catch (UnsupportedEncodingException e) {e.printStackTrace();} catch (ProtocolException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}return strresponse;}

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