spring data elasticsearch

Spring-data-redis Serialization Policy Spring-data-redis offers a variety of serializer strategies that are very handy for developers using Jedis. SDR offers 4 built-in serializer: Jdkserializationredisserializer: Using the JDK serialization means (serializable interface, Objectinputstrean,objectoutputstream)

The Jpa:java persistence API is a Java persistence specification. It provides Java developers with an object/mapping tool to manage relational data in Java applications. The goal is to simplify persistent development efforts and integrate ORM technology.Spring Data JPA is a set of JPA application frameworks encapsulated on the basis of the ORM framework and JPA specifications of

various types of simple additions and deletions, spring data provides a direct query based on the proxy method, nothing needs to do, the only need to write interfaces, naming methods, this part is too convenient, and simple query to solve almost 80% of the problem. This part is relatively simple, do not repeat, refer to the use of the Daquan section. Because of the implementation of the template DAO, so th

Scene:Now, one of the things that is provided in the service is to remove all eligible data before inserting all new conditions into the databaseThis scenario requires a two-step implementation of the service1. Delete2. InsertThese two steps are naturally done in the same transaction, which is a complete operation.So for this scenario, let's see how the annotations work.1 "First look at the DAO layer link: http://www.cnblogs.com/sxdcgaq8080/p/8984140.

The configuration of the data source can be followed by the example of Spring boot Learning (vii) Web applications using the Datasourceconfig implementation of JdbcTemplate multiple data source configuration. Add the JPA configuration for the first data source, note the two notes where you specify the Entity entity and

Recently work too busy, so delay to everyone to share the actual combat springboot framework of use.The following is the use of spring boot to integrate multiple frameworks.The first is to prepare for the job well.First, the package required to import the framework, we use the thing Maven to manage the package.The above example is my h5ds real background management project. The project is being financed with hospitality, and you will have a lot of peo

jdbctemplate according to the annotations when the service is called@Autowired@Qualifier("Primaryjdbctemplate") protected JdbcTemplate jdbctemplate; @Autowired@Qualifier("Secondaryjdbctemplate") protected JdbcTemplate jdbcTemplate2; @OverridePublic Integer Getusercount () {return jdbctemplate.queryforobject ("SELECT COUNT (1) from USER", Integer. ) Class); }@OverridePublic Integer GetUserCount2 () {return jdbctemplate2.queryforobject ("SELECT COUNT (1) from USER", Integer. ) Class); }Seco

Jpaproperties.gethibernateproperties (DataSource); } @Bean (name = " Transactionmanagersecondary ") Platformtransactionmanager transactionmanagersecondary ( Entitymanagerfactorybuilder builder) { return new Jpatransactionmanager (Entitymanagerfactorysecondary (builder). GetObject ()); } /span> 4 UseDAO (repo) from different databases can be injected into any other bean at this time.@ControllerPublicclass testcontroller { @ Autowired SYSROLEREPO1 sysrolerepo1; @Autowired Sys