Spring框架的接口调用

        HttpComponentsClientHttpRequestFactory clientHttpRequestFactory = new HttpComponentsClientHttpRequestFactory();

clientHttpRequestFactory .setConnentTimeout(3000);

clientHttpRequestFactory .setReadTimeout(3000);

        RestTemplate restTemplate = new RestTemplate(clientHttpRequestFactory);

        String result = restTemplate.getForObject("http://www.baidu.com",String.class);

        System.out.println(result);