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project - vaadin pas*ing parameter between pages and database. spring boot # 13 - sending json objects using the resttemplate. in the discussed case the manner of sending the object in json format to api will be presented. the object pas*ed for example - hibernate provides the possibility of using the database schema. there are 4 strategies available: validate update create create-drop strategies are defined in the hibernate.cfg.xml file by adding ... to build the first applications you need to remember about several factors. what is needed to build applications using hibernate: adding hibernate dependencies to the application; driver ... hibernate framework constituting one of the most popular implementations of ja*a persistence api (jpa). it allows you to perform object-relational mapping (orm) - that is, mapping clas* objects to a database. benefits programmer ... clas* resttemplate allows you to exchange data with the api restoration. depending on the http method with which the communication occurs, the exchange method can be parameterized appropriately - by default, it serves ... the filter mechanism allows rejecting requests to the application. this is a mechanism particularly useful when we want to protect applications from calls: from unwanted website addresses; ddos attacks; .... spring boot part 10 - loading objects from the configuration file. spring boot provides a mechanism for automatically loading a configuration file and creating objects from them. for example, the person clas* to which the data will be loaded will be used ... spring boot has a mechanism for automatically loading configuration and injecting values ​​thanks to reflection. an example of the following dataset can be injected by referencing the prefix .... spring boot part 8 - clearing the configuration using the @value annotation. @value - annotation for injecting values. it also allows you to pas* default values. using