废话不多说，直接上代码。

 /**
     * 发get请求，获取文本
     *
     * @param getUrl
     * @return 网页context
     */
    public static String sendGetRequest(String getUrl) {
        String result = null;
        CloseableHttpClient httpClient = HttpClients.createDefault();
        HttpGet get = new HttpGet(getUrl);
        CloseableHttpResponse response = null;
        try {
            response = httpClient.execute(get);
            if (response != null) {
                HttpEntity resEntity = response.getEntity();
                if (resEntity != null) {
                    result = EntityUtils.toString(resEntity, "UTF-8");
                }
            }
            return result;
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            try {
                httpClient.close();
                if (response != null) {
                    response.close();
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return null;
    }

通过上述代码，传入easymock的伪json地址，获取Json字符串