java swing通过httpclient向服务器端发送post请求如何做

发布网友发布时间：2022-05-11 17:01

共1个回答

热心网友时间：2023-10-15 20:14

/**
     * @Description: post请求远程http链接
     * @param url 链接地址
     * @param bean 实体对象参数
     * @param params 多个字符串参数
     * @return json
     * @throws Exception
     */
    public static String doPostWithBean(String url,Object bean,String...params) throws Exception {
        System.err.println(params.length);
        HttpClient client = getHttpClient();
        HttpPost httppost = new HttpPost(url);
        MultipartEntity entity = new MultipartEntity();
        for(Field f : bean.getClass().getDeclaredFields()){
            f.setAccessible(true);
            if(f.get(bean)!=null&&!"".equals(f.get(bean).toString())){
                entity.addPart(f.getName(),new StringBody(f.get(bean).toString(),Charset.forName("UTF-8")));
            }
        }
        for(Field f : bean.getClass().getSuperclass().getDeclaredFields()){
            f.setAccessible(true);
            if(f.get(bean)!=null&&!"".equals(f.get(bean).toString())){
                entity.addPart(f.getName(),new StringBody(f.get(bean).toString(),Charset.forName("UTF-8")));
            }
        }
        if(params!=null && params.length!=0) {
            Map<String,Object> paramsMap = MapTool.getParamMap(params);
            for(String paramName:paramsMap.keySet()){
                entity.addPart(paramName,new StringBody((String) paramsMap.get(paramName),Charset.forName("UTF-8")));
            }
        }
        httppost.setEntity(entity);
        String resp = null;
        try {
            HttpResponse response = client.execute(httppost);
            HttpEntity resEntity = response.getEntity();
            if (resEntity != null) {
                resp = EntityUtils.toString(resEntity, "UTF-8");
            }
            if (resEntity != null) {
                EntityUtils.consume(resEntity);
            }
        } finally {
            client.getConnectionManager().shutdown();
        }
        return resp;
    }