java如何实现返回接口的status_code(HTTP状态码）以及返回信息？

校验判断接口的status_code(HTTP状态码）以及返回信息；

接口地址为：https://easy-mock.com/mock/5c0e4602dbf7436640a68d74/simple/response

        String url = "https://easy-mock.com/mock/5c0e4602dbf7436640a68d74/simple/response";
        ResponseEntity<String> responseEntity = restTemplate.getForEntity(url, String.class);
        LOGGER.info("ResponseEntity StatusCode={}", responseEntity.getStatusCode());
        LOGGER.info("ResponseEntity={}", responseEntity);

给个案例，参考哈：
$.ajax({
url: "xxxx",
type: "POST",
data: {

},
dataType:"xxx",
success: function(xml, textStatus, xhr) {
    console.log(arguments);
    console.log(xhr.status);
},
complete: function(xhr, textStatus) {
    console.log(xhr.status);
} 

});

status就是响应的状态码。