resttemplate

问题 I have the following code: restTemplate.getForObject("http://img.championat.com/news/big/l/c/ujejn-runi_1439911080563855663.jpg", File.class); I especially took image which doesn't require authorization and available absolutely for all. when following code executes I see the following stacktrace: org.springframework.web.client.RestClientException: Could not extract response: no suitable HttpMessageConverter found for response type [class java.io.File] and content type [image/jpeg] at org

问题 With Spring-boot 1.5.10.RELEASE, I am getting response.body as null. Here is how I am using RestTemplate RestTemplate restTemplate = new RestTemplate(); List<ClientHttpRequestInterceptor> interceptors = new ArrayList<>(); interceptors.add(new LoggingRequestInterceptor()); restTemplate.setInterceptors(interceptors); String url = "http://someurl/Commands"; MultiValueMap<String, String> params = new LinkedMultiValueMap<>(); params.add("cmd", "{\"operation\":\"getSomeDetails\"}}"); HttpHeaders

问题 With Spring-boot 1.5.10.RELEASE, I am getting response.body as null. Here is how I am using RestTemplate RestTemplate restTemplate = new RestTemplate(); List<ClientHttpRequestInterceptor> interceptors = new ArrayList<>(); interceptors.add(new LoggingRequestInterceptor()); restTemplate.setInterceptors(interceptors); String url = "http://someurl/Commands"; MultiValueMap<String, String> params = new LinkedMultiValueMap<>(); params.add("cmd", "{\"operation\":\"getSomeDetails\"}}"); HttpHeaders

问题 I upgraded from Spring 4.3.16 to Spring 5.0.7. When trying to upload a file using the restTemplate I started to get a " 400 - Bad Request ". After messing around the only difference in behavior I noticed was removing requestEntity from the exchange call and the error (bad request) goes away, however it fails because the file is not present to be uploaded. Any help would be greatly appreciated! The client: public <T> ResponseEntity<T> uploadMultipartFile(String requestParamName, byte[]

问题 I'm currently trying to incorporate a HandlerInterceptorAdapter but it's not getting registered and comparing it to other answers is tough because everyone is using something different. And I'm aware WebMvcConfigureAdapter is deprecated, some versioning is beyond my control for the scope of the project, see usage specs below. Can someone please provide some guidance on incorporating interceptors with a RestTemplate (that's not ClientHttpRequestInterceptor). Main: @SpringBootApplication

问题 I'm using templateRest to post User object to Rest Server but I encoutered the following error: Exception in thread "main" java.lang.NoClassDefFoundError: com/fasterxml/jackson/core/JsonProcessingException at edu.java.spring.service.client.RestClientTest.main(RestClientTest.java:33) Caused by: java.lang.ClassNotFoundException: com.fasterxml.jackson.core.JsonProcessingException at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc

问题 I am using Spring RestTemplate and want to make a call to another service that doesn't return any response body. So, I don't want to wait for the response. So, it's just fire and forget, and continue with the remaining code. I am thinking of creating a new Thread to do this but really not sure what's the correct approach. 回答1: The correct approach is to execute the async with a callback (using DeferredResult, like this (assuming we have a class someClass that we want to retrieve from the API:

问题 I am using Spring RestTemplate and want to make a call to another service that doesn't return any response body. So, I don't want to wait for the response. So, it's just fire and forget, and continue with the remaining code. I am thinking of creating a new Thread to do this but really not sure what's the correct approach. 回答1: The correct approach is to execute the async with a callback (using DeferredResult, like this (assuming we have a class someClass that we want to retrieve from the API:

问题 I have a response from URL which looks like: {"seq":1,"id":"Test1","changes":[{"rev":"1-52f5cdf008ecfbadf621c2939af7bd80"}]} {"seq":2,"id":"Test2","changes":[{"rev":"1-8ce403a89dc5e7cb4187a16941b3fb7d"}]} {"seq":3,"id":"Test3","changes":[{"rev":"1-52as7ddfd8ecfbadf621c2939af7bd80"}]} {"seq":4,"id":"Test4","changes":[{"rev":"1-6yy03a89dc5e7cb45677a16941b3fb7d"}]} If the mapped object is String, then getting all the changes feed. ResponseEntity<String> responseEntity = restTemplate.exchange(URL

问题 I am using Apache HTTP Client for connection pooling during my REST API calls into certain web services. Strange thing is that in spite of me using HTTP Connection Pooling there are no gain in my performance. I am using Apache HTTP Client to connect to my web services, and the code is as follows from there documentation : PoolingHttpClientConnectionManager cm = new PoolingHttpClientConnectionManager(); cm.setMaxTotal(200); cm.setDefaultMaxPerRoute(20); HttpHost host = new HttpHost("abc.com",