RestTemplate

RestTemplate的使用

配置

@Configuration
public class RestTemplateConfig {
//    @Value("${emq.username}")
//    private String username;
//    @Value("${emq.password}")
//    private String password;
//    @Bean
//    public RestTemplate restTemplate(RestTemplateBuilder builder){
//        return builder.basicAuthentication(username,password).build();
//    }

    @Bean
    public ClientHttpRequestFactory simpleClientHttpRequestFactory() {

        SimpleClientHttpRequestFactory factory = new SimpleClientHttpRequestFactory();
        factory.setReadTimeout(5000);
        factory.setConnectTimeout(15000);
        // 设置代理
        //factory.setProxy(null);

        return factory;
    }

    @Bean
    public RestTemplate restTemplate(ClientHttpRequestFactory factory) {

        RestTemplate restTemplate = new RestTemplate(factory);

        return restTemplate;
    }

}

也可以通过RestTemplateBuilder来设置一些参数，比如验证、超时时间等。

使用

HttpHeaders requestHeaders = new HttpHeaders();
        requestHeaders.setContentType(MediaType.APPLICATION_JSON);
        HttpEntity<String> requestEntity = new HttpEntity<String>(jsonString, requestHeaders);
        ResponseEntity<String> res = restTemplate.postForEntity(url, requestEntity, String.class);