What is HttpMessageConverter spring boot?
What is HttpMessageConverter spring boot?
2 HttpMessageConverters. Spring MVC uses the HttpMessageConverter interface to convert HTTP requests and responses. Sensible defaults are included out of the box, for example Objects can be automatically converted to JSON (using the Jackson library) or XML (using the Jackson XML extension if available, else using JAXB) …
What are HttpMessageConverters?
HTTP Message Converters are used to marshal and unmarshal Java Objects to and from JSON, XML, etc. over HTTP. Marshalling means producing a stream of byte which contain enough information to be able to re-build the object.
What is the use of MappingJackson2HttpMessageConverter?
Class MappingJackson2HttpMessageConverter. Implementation of HttpMessageConverter that can read and write JSON using Jackson 2. x’s ObjectMapper . This converter can be used to bind to typed beans, or untyped HashMap instances.
What is JmsTemplate spring?
What is Spring JmsTemplate? The JmsTemplate is a central class from the Spring core package. It simplifies the use of JMS and gets rid of boilerplate code. It handles the creation and release of JMS resources when sending or receiving messages.
What is the use of WebMvcConfigurer?
Interface WebMvcConfigurer. Defines callback methods to customize the Java-based configuration for Spring MVC enabled via @EnableWebMvc . @EnableWebMvc -annotated configuration classes may implement this interface to be called back and given a chance to customize the default configuration.
What is @ResponseStatus?
Overview. @ResponseStatus marks a method or exception class with the status code and reason message that should be returned. The status code is applied to the HTTP response when the handler method is invoked, or whenever the specified exception is thrown. @ResponseStatus(value = HttpStatus.
What is EnableWebMvc?
The @EnableWebMvc annotation is used for enabling Spring MVC in an application and works by importing the Spring MVC Configuration from WebMvcConfigurationSupport.
What is difference between JMS and ActiveMQ?
What Is the Difference Between JMS and ActiveMQ? ActiveMQ is a JMS provider. A JMS provider forms the software framework for facilitating the use of JMS concepts inside an application. A single node of ActiveMQ which allows clients to connect to it and use these messaging concepts is called an “ActiveMQ Broker.”
What is the difference between JMS and Kafka?
Kafka and JMS are designed for different purposes. Kafka is a distributed streaming platform that offers high horizontal scalability. Also, it provides high throughput and that’s why it’s used for real-time data processing. JMS is a general-purpose messaging solution that supports various messaging protocols.
Can I have multiple WebMvcConfigurer?
There can however be multiple @Configuration classes implementing WebMvcConfigurer in order to customize the provided configuration.
What is @EnableWebMvc in Spring boot?
The @EnableWebMvc annotation is used for enabling Spring MVC in an application and works by importing the Spring MVC Configuration from WebMvcConfigurationSupport. The XML equivalent with similar functionality is .
What is @ResponseBody in Spring boot?
@ResponseBody is a Spring annotation which binds a method return value to the web response body. It is not interpreted as a view name. It uses HTTP Message converters to convert the return value to HTTP response body, based on the content-type in the request HTTP header.
What is @RestController in Spring boot?
@RestController is a convenience annotation for creating Restful controllers. It is a specialization of @Component and is autodetected through classpath scanning. It adds the @Controller and @ResponseBody annotations. It converts the response to JSON or XML.
Where do you need EnableWebMvc?
When you’re using Java code (as opposed to XML) to configure your Spring application, @EnableWebMvc is used to enable Spring MVC. If you’re not already familiar with Spring’s support for Java configuration, this is a good place to start. @EnableWebMvc is equivalent to in XML.
Why Kafka is better than ActiveMQ?
Kafka is way faster than ActiveMQ. It can handle millions of messages per sec. ActiveMQ supports both message queues and publishes/subscribe messaging systems. On the other hand, Kafka is based on publish/subscribe but does have certain advantages of message-queues.
Is ActiveMQ push or pull?
ActiveMQ will push as many messages to the consumer as fast as possible, where they will be queued for processing by an ActiveMQ Session. The maximum number of messages that ActiveMQ will push to a Consumer without the Consumer processing a message is set by the pre-fetch size.