java - how to achieve real transaction in spring with @Transactional -

i have 2 repositories - every repository have save methods different object. want execute these 2 methods transaction, means if 1 of them fail, transaction rolled back. (this meaning of transaction in opinion).

here code:

@repository public class bananarep {      private jdbctemplate jdbc;      @autowired     public bananarep(jdbctemplate jdbc) {         this.jdbc = jdbc;     }      public void savebanana(banana banana) {         jdbc.update("insert ......", ...);     } }  @repository public class tomatorep {     private jdbctemplate jdbc;      @autowired     public tomatorep(jdbctemplate jdbc) {         this.jdbc = jdbc;     }      public void savetomato(tomato tomato) {         jdbc.update("insert ... ", ....);     } }  @restcontroller public class mixcontroller {     @autowired     bananarep bananarep;     @autowired     tomatorep tomatorep;      @transactional     @requestmapping(value="/mix", method= requestmethod.get)     public car mix() {          banana banana = new banana(....);         bananarep.savebanana(banana );          tomato tomato= new tomato(...);         tomatorep.savetomato(tomato);         return banana;     } } 

my build:

buildscript {     ext {         springbootversion = '2.0.0.m2'     }     repositories {         mavencentral()         maven { url "https://repo.spring.io/snapshot" }         maven { url "https://repo.spring.io/milestone" }     }     dependencies {         classpath("org.springframework.boot:spring-boot-gradle-plugin:${springbootversion}")     } }  apply plugin: 'java' apply plugin: 'eclipse' apply plugin: 'org.springframework.boot' apply plugin: 'io.spring.dependency-management'  version = '0.0.1-snapshot' sourcecompatibility = 1.8  repositories {     mavencentral()     maven { url "https://repo.spring.io/snapshot" }     maven { url "https://repo.spring.io/milestone" } }   dependencies {     compile('org.springframework.boot:spring-boot-starter-jersey')     compile('org.springframework.boot:spring-boot-starter-web')     compile('org.springframework.boot:spring-boot-starter-jdbc')     compile('mysql:mysql-connector-java') } 

in order test change name of 1 db column in tomato table, in controller savetomato(tomato) method fail. want if happen saved banana rolled back. thought should work @transactional method annotation wrong.

how achieve goal then?

transaction control should placed in service business processing layer