Beware of how HTTP Client pools work, it may be improving performance during a short period of time. Check the analysis below: From PoolingHttpClientConnectionManager javadocs The handling of stale connections was changed in version 4.4. Previously, the code would check every connection by default before re-using it. The code now only checks the connection if … Read more
So knowledge about using pem certificate with RestTemplate is distracted. Steps which must be done: Add server certificate to trustStore, using keytool or portecle. When you want to use custom trusttore use this script Next configure ssl to RestTemplate. It may be done like below: @Configuration public class SSLConfiguration { @Value(“${certificate.name}”) private String name; @Bean(name … Read more
Well, I got this issue solved. It appears that by creating a self-signed certificate, using keytool, without providing -keyalg parameter makes the key-pair algorithm default to DSA. None of my ciphers suite included DSA algorithm. In that case, although the client and the server had intersection between their cipher-suites, neither was suitable for the key … Read more
There is no easy way to do this. URI template variables are usually meant for path elements or a query string parameters. You’re trying to pass a host. Ideally, you’d find a better solution for constructing the URI. I suggest Yuci’s solution. If you still want to work with Spring utilities and template expansion, one … Read more
You need to add StringHttpMessageConverter to rest template’s message converter with charset UTF-8. Like this RestTemplate restTemplate = new RestTemplate(); restTemplate.getMessageConverters() .add(0, new StringHttpMessageConverter(StandardCharsets.UTF_8));
It doesn’t matter either way, static or instance. RestTemplate‘s methods for making HTTP requests are thread safe so whether you have a RestTemplate instance per Task instance or a shared instance for all Task instances is irrelevant (except for garbage collection). Personally, I would create the RestTemplate outside the Task class and pass it as … Read more
Replace the default requestFactory with one from Apache HttpClient (which decodes GZIP on the fly): HttpComponentsClientHttpRequestFactory clientHttpRequestFactory = new HttpComponentsClientHttpRequestFactory( HttpClientBuilder.create().build()); RestTemplate restTemplate = new RestTemplate(clientHttpRequestFactory); Add Apache Http Client into pom.xml <dependency> <groupId>org.apache.httpcomponents</groupId> <artifactId>httpclient</artifactId> <!–Version is not needed when used with Spring Boot parent pom file –> <version>4.5.1</version> </dependency>
Errors you’ll see if a RestTemplate isn’t defined Consider defining a bean of type ‘org.springframework.web.client.RestTemplate’ in your configuration. or No qualifying bean of type [org.springframework.web.client.RestTemplate] found How to define a RestTemplate via annotations Depending on which technologies you’re using and what versions will influence how you define a RestTemplate in your @Configuration class. Spring >= … Read more
Edit: The other answers are better (use Resource) https://stackoverflow.com/a/36226006/116509 My original answer: You can use execute for this kind of low-level operation. In this snippet I’ve used Commons IO’s copy method to copy the input stream. You would need to customize the HttpMessageConverterExtractor for the kind of response you’re expecting. final InputStream fis = new … Read more
The root cause is that RestTemplate considers curly braces {…} in the given URL as a placeholder for URI variables and tries to replace them based on their name. For example {pageSize} would try to get a URI variable called pageSize. These URI variables are specified with some of the other overloaded getForObject methods. You … Read more