httpclient调用接口

public static String sendData(String url,String codeType,Map<String,String> datas,Map<String,File> files){
        CloseableHttpClient httpClient = HttpClients.createDefault();
        String result = "";
        try{
            // 接口地址
            HttpPost httpPost = new HttpPost(url);
            //以浏览器兼容模式运行，防止文件名乱码。 
            MultipartEntityBuilder multipartEntityBuilder = MultipartEntityBuilder.create().setMode(HttpMultipartMode.BROWSER_COMPATIBLE);
            
            //普通参数
            if(datas != null && !datas.isEmpty()){
                for (Map.Entry<String, String> entry : datas.entrySet()) {
                    multipartEntityBuilder.addTextBody(entry.getKey(), entry.getValue());
                }
            }
            //文件参数
            if(files != null && !files.isEmpty()){
                for (Map.Entry<String, File> entry : files.entrySet()) {
                    multipartEntityBuilder.addBinaryBody(entry.getKey(), entry.getValue());  
                }
            }
            
            HttpEntity reqEntity = multipartEntityBuilder.build();
            
            httpPost.setEntity(reqEntity);
            // 发起请求 并返回请求的响应
            CloseableHttpResponse response = httpClient.execute(httpPost);
            try{
                // 获取响应对象
                int status = response.getStatusLine().getStatusCode();
                if(status == HttpStatus.SC_OK){
                    HttpEntity resEntity = response.getEntity();
                    if(resEntity != null) {
                        // 响应内容
                        if(codeType==null || codeType==""){
                            codeType = "UTF-8";
                        }
                        result = EntityUtils.toString(resEntity,codeType);
                         // 销毁
                    }
                    EntityUtils.consume(resEntity);
                }
            }finally{
                response.close();
            }
        }catch (Exception e) {
            e.printStackTrace();
            result = "";
        }finally{
            try {
                httpClient.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return result;
    }