resttemplate 返回list

restTemplate返回List的示例代码如下：

@GetMapping("/test-list-all")
public List<User> listAll() {
    ParameterizedTypeReference<List<User>> responseType = new ParameterizedTypeReference<List<User>>() {};
    ResponseEntity<List<User>> responseEntity = restTemplate.exchange("http://microservice-provider-user/list-all", HttpMethod.GET, null, responseType);
    List<User> userList = responseEntity.getBody();
    for (User user : userList) {
        System.out.println(user.getId());
    }
    return userList;
}

在这个示例中，我们使用了`ParameterizedTypeReference`来指定返回类型为List<User>。然后使用`restTemplate.exchange`方法发送GET请求，并将返回结果赋值给`ResponseEntity<List<User>>`。通过`getBody`方法获取具体的List<User>对象，并进行后续的处理。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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