java http请求

public String doPost(String  url,String jsonStr,String tenantToken){
    HttpClient httpClient = HttpClientBuilder.create().build();
    HttpPost httpPost = new HttpPost(url);
    httpPost.setHeader(HTTP.CONTENT_TYPE,"application/json; charset=utf-8");
    if(StringUtils.isNotEmpty(tenantToken)){
        httpPost.setHeader("Authorization",tenantToken);
    }
    StringEntity entity = new StringEntity(jsonStr,"utf-8");
    httpPost.setEntity(entity);
    HttpResponse executeResp = null;
    try{
        executeResp = httpClient.execute(httpPost);
        if (executeResp.getStatusLine().getStatusCode()== HttpStatus.SC_OK){
            String resultJsonStr = EntityUtils.toString(executeResp.getEntity());
            return resultJsonStr;
        }
    }catch (ClientProtocolException e){
        e.printStackTrace();
    }catch (IOException e){
        e.printStackTrace();
    }
    return null;
}


public String doGet(String url,String tenantToken) {
    try {
        HttpClient httpClient = HttpClientBuilder.create().build();
        HttpGet httpGet=new HttpGet(url);
        httpGet.setHeader(HTTP.CONTENT_TYPE,"application/json; charset=utf-8");
        if(StringUtils.isNotEmpty(tenantToken)){
            httpGet.setHeader("Authorization",tenantToken);
        }
        HttpResponse result = httpClient.execute(httpGet);
        if (result.getStatusLine().getStatusCode()== HttpStatus.SC_OK){
            String resultJsonStr = EntityUtils.toString(result.getEntity());
            return resultJsonStr;
        }
    } catch (ClientProtocolException e){
        e.printStackTrace();
    }catch (IOException e) {
        e.printStackTrace();
    }
    return null;
}