resttemplate

Having null response for a list of objects in REST API call with RestTemplate

由 梦想与她 提交于 2019-12-13 18:54:36
问题 So I'm working on a REST client that consumes a REST API to get a JSON object using the Spring RestTemplate. So I get an HTTP 200 OK response but the list (equipment) inside the class object is null. But other fields are fetched. When I do the same request using the Postman it works well. What might be the reason for this? The RestTemplate code snippet : RestTemplate restTemplate = new RestTemplate(); HttpHeaders requestHeaders = new HttpHeaders(); requestHeaders.add("Content-Type",

Resttemplate getForEntity - Pass headers

由 泪湿孤枕 提交于 2019-12-13 11:52:35
问题 Is it possible to set header as part of getForEntity method or should I use exchange? I am trying to set oauth header as part of getForEntity calls. 回答1: You can use .exchange : ResponseEntity<YourResponseObj> entity = new TestRestTemplate().exchange( "http://localhost:" + port + "/youruri", HttpMethod.GET, new HttpEntity<Object>(headers), YourResponseObj.class); Full Junit sample: @RunWith(SpringRunner.class) @SpringBootTest(webEnvironment = WebEnvironment.RANDOM_PORT) public class

冒着被开除的风险也要给你们看的 Spring Cloud 入门总结

由 扶醉桌前 提交于 2019-12-13 09:46:10
首先我给大家看一张图，如果大家对这张图有些地方不太理解的话，我希望你们看完我这篇文章会恍然大悟。 什么是Spring cloud 构建分布式系统不需要复杂和容易出错。Spring Cloud 为最常见的分布式系统模式提供了一种简单且易于接受的编程模型，帮助开发人员构建有弹性的、可靠的、协调的应用程序。Spring Cloud 构建于 Spring Boot 之上，使得开发者很容易入手并快速应用于生产中。 官方果然官方，介绍都这么有板有眼的。 我所理解的 Spring Cloud 就是微服务系统架构的一站式解决方案，在平时我们构建微服务的过程中需要做如 服务发现注册 、配置中心 、消息总线 、负载均衡 、断路器 、数据监控 等操作，而 Spring Cloud 为我们提供了一套简易的编程模型，使我们能在 Spring Boot 的基础上轻松地实现微服务项目的构建。 Spring Cloud 的版本 当然这个只是个题外话。 Spring Cloud 的版本号并不是我们通常见的数字版本号，而是一些很奇怪的单词。这些单词均为英国伦敦地铁站的站名。同时根据字母表的顺序来对应版本时间顺序，比如：最早 的 Release 版本 Angel，第二个 Release 版本 Brixton（英国地名），然后是 Camden、 Dalston、Edgware、Finchley、Greenwich

springcloud之ribbon

由 时间秒杀一切 提交于 2019-12-13 08:45:24
springcloud之ribbon 概念也就是说在自动装配里面利用拦截器来做到负载均衡 • @ConditionalOnClass(RestTemplate.class): RestTemplate 类必须存在于当前工程的环境中。 • @ConditionalOnBean(LoadBalancerClient.class): 在Spring 的Bean工程中必须有LoadBalancerClient的实现 Bean。 在该自动化配置类中， 主要做了下面三件事： • 创建了 一 个LoadBalancerInterceptor的Bean, 用千实现对客户端发起请求时进行拦截， 以实现客户端负载均衡。 • 创建了一 个RestTemplateCustomizer的Bean,用于给RestTemplate增加LoadBalancerInterceptor拦截器。 • 维护了一 个被@LoadBalanced 注解修饰的RestTempllate对象列表，并在这里进行初始化， 通过调用RestTemplateCustomizer的实例来给需要客户端负载均衡的RestTemplate增加LoadBalancerinIerceptor拦截器。 流程:通过 LoadBalancerinterceptor拦截器对 RestTemplate的请求进行拦截， 并利用Spring

org.springframework.web.client.HttpClientErrorException: 415 Unsupported Media Type[EDITED]

由 青春壹個敷衍的年華 提交于 2019-12-13 07:57:37
问题 In Android web service using POST method of REST TEMPLATE, I am trying to send an object to server which contains few parameters and and 2 Objects. Those 2 Objects contains few parameters and 3 Lists of different Objects and each of those 3 Lists of Objects contains few parameters inside them and 1 List of Object that contains a byte array alone. Like in the below pics: Pic 1[Main Object(The one I am trying to send)]: Pic 2[Object inside the Main Object comprising 3 Lists of Objects]: Pic 3

Rest template getForObject() mapping only camel case fields

由 徘徊边缘 提交于 2019-12-13 04:41:31
问题 Having a rest web service that returns the below xml response. Person> <ttId>1408</ttId> <FirstName>RAJ</FirstName> <NationalityValue>INDIAN</NationalityValue> <Sex>Male</Sex> </Person> This is the dto import java.io.Serializable; import java.util.Date; public class PersonInfoDto implements Serializable{ /** * */ private static final long serialVersionUID = 1L; private Long ttId; private String NationalityValue; private String Sex; private String FirstName; //getters and setters } Using

How to bind custom Hateoas link class to RestTemplate?

由 删除回忆录丶 提交于 2019-12-13 04:41:15
问题 I have a common library for a spring rest API of one my application.API exposes rest call with custom HATEOAS link. ex) [ { "bookUid": "5c4ec057e21b840001968d31", "status": "PURCHASED_PENDING", "BookInfo": { .... }, "_links": { "self": { "href": "http://localhost:9992/api/v1/books/5c4ec057e21b840001968d31", "accepts": "application/json" }, "update-book": [ { "href": "http://localhost:9992/api/v1/books/5c4ec057e21b840001968d31", "name": "ACTIVATE", "accepts": "application/json", "method":

How to pass API exception output to through own REST service?

由 旧时模样 提交于 2019-12-13 03:33:06
问题 Summary : I want to pass valid exception output given by one REST service end point to the end user by using my own Rest service. What I did is, I have called that service in service class using RestTemplate class, it's giving valid output on valid post request. But when I am passing invalid input to it I am getting only '400 BAD REQUEST' result in my service class where I have called that API. But when I am calling that API separately using postman, there I'm getting expected output. Code

How to mock new instance of RestTemplate?

由 穿精又带淫゛_ 提交于 2019-12-13 03:25:34
问题 Im writing a unit test for my legacy code which is something like: public class SomeClass { public SomeResponse logToServer() { SomeResponse response = null; try{ RestTemplate restTemplate = new RestTemplate(); SomeRequestBean request = new SomeRequestBean(); response = restTemplate.postForEntity("http://someUrl", request, SomeResponse.class); System.out.println(response.toString()); } catch(Exception e) { e.printStackTrace(); } return response; } } I know I can move RestTemplate above and

Spring RestTemplate: How to reach state to check #is4xxClientError, instead of RestClientException 1st?

由 心不动则不痛 提交于 2019-12-13 03:24:47
问题 In my experience, after calling Spring's RestTemplate#exchange that subsequently receives '404 - Not Found' response, a RestClientException is thrown instead of returning a ResponseEntity that can have its status checked (i.e: with ResponseEntity#getStatusCode#is4xxClientError ). I don't understand why HttpStatus#is4xxClientError even exists if instead an Exception is thrown that prevents returning a ResponseEntity with HttpStatus to call # is4xxClientError on... I'm reasonably convinced what
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