发送Http请求, 参数有中文, 服务器响应后显示为乱码(显示为:?????)

约定不等于承诺〃 2022-12-27 08:45 176阅读 0赞

# 解决方式 #

能加`UTF-8`的地方都加上…哈哈  
这儿生效的是请求url的参数, 加了字符编码方式`UTF-8`后,服务器响应后就显示正常了.  
`httpPut.setEntity(new StringEntity(json, "UTF-8"));`

/** * Http协议Put请求 手环(第三方接口) * * @param url 请求url * @param json 参数对象 * @param imei 串号 * @param cpid 授权cpid * @param key 授权key * @return 数据 * @throws Exception 异常信息 */
        public static String httpPutForDeviceBracelets(String url, String json, String imei, String cpid, String key) throws Exception { 
            // 凭空获取request
            HttpServletRequest request = ((ServletRequestAttributes) Objects.requireNonNull(RequestContextHolder.getRequestAttributes())).getRequest();
            request.setCharacterEncoding("utf-8");
    
            //初始HttpClient
            CloseableHttpClient httpClient = HttpClients.createDefault();
            //创建Put对象
            HttpPut httpPut = new HttpPut(url);
            //设置Content-Type
            httpPut.setHeader("Content-Type", "application/json");
            //设置其他Header
            httpPut.setHeader("cpid", cpid);
            httpPut.setHeader("key", key);
            httpPut.setHeader("imei", imei);
    
            //写入JSON数据
            httpPut.setEntity(new StringEntity(json, "UTF-8"));
            //发起请求，获取response对象
            CloseableHttpResponse response = httpClient.execute(httpPut);
            //获取请求码
            //response.getStatusLine().getStatusCode();
            //获取返回数据实体对象
            HttpEntity entity = response.getEntity();
            //转为字符串
            return EntityUtils.toString(entity, "UTF-8");
        }