Spring Integration - JDBC Sample
Overview
This sample provides example of how the Jdbc Adapters can be used.
Getting Started
You can run the application by either
- running the "Main" class from within STS (Right-click on Main class --> Run As --> Java Application)
- or from the command line:
- mvn package
- mvn exec:java
Currently one example exists. On the command prompt you can enter the following valid values and get a response back:
- 'a'
- 'b'
- 'foo'
#Sample "Person Outbound Gateway"
We use the outbound gateway to insert records in a Person table based on the values contained in the message payload that is received over the channel to the adapter.
The following are used to configure the gateway
- The request and reply channels
- The data source for the database
- The the update/insert statement to be executed.
- Optional request SQL Parameter source factory
- The select query to be executed after the insert is done
- Optional reply SQL Parameter source factory
- RowMapper if you intend to map the ResultSet to your custom object
The following sequence of events happen when we invoke the createPerson method on the gateway
- The parameter of type Person is sent as a payload of a message over the reply-channel
- The outbound gateway reads this message and extracts the payload
- It then executes the given insert statement, the values to be inserted are derived from the payload request-sql-parameter-source-factory provided is used to generate a parameter source.
- Since we expect an identity column to be generated, keys-generated is set to true
- The result of the insert is then use to create a reply sql parameter source, the factory reply-sql-parameter-source-factory generates the required parameter source
- The select query provided is executed
- The ResultMapper is used to convert this ResultSet to a Person object
- The Person object is then sent as a payload of the Message over the reply channel.
- The Person payload is extracted from the Message and returned to the calling application.
For executing the program and see the results, execute the junit test case org.springframework.integration.samples.jdbc.OutboundGatewayTest
Resources
For help please take a look at the Spring Integration documentation: