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Spring Boot 2.x - transaction with controller request

5 points
Created by:
Joshua-Heath
475

In this short article, we would like to show how to add transaction to controller request in Spring Boot in Java.

Quick solution: add @Transactional annottation to selected controller method.

 

Practical example

In below example operations are rolled back on any exceptions that occured in the method.

package com.example

import org.springframework.http.MediaType;
import org.springframework.stereotype.Controller;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;

@Controller
public class ExampleController {

    @RequestMapping(
            value = "/path/to/api",
            method = RequestMethod.GET,
            produces = MediaType.TEXT_PLAIN_VALUE
    )
    @Transactional
    @ResponseBody
    public String executeSomeApi() {
        // some code here ...

        // if (operationError) {
        //     throw new SomeException("Exception message here ...");  // it rollbacks transaction
        // }

        // some code here ...
        return "Some success response here ...";
    }
}

See also

  1. Spring Boot 2.x - commit and rollback transaction manually 
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