Spring Boot Hibernate RestFull Service PostgreSQL -

i'm new user of spring , want develop restfull service hibernate-postgresql , spring boot. try learn documentation of spring have lot of problem deploy simple service. don't use xml file properties java class.

here different files :

persistancejpaconfig.java :

package com.spring.configuration;  import javax.sql.datasource; import org.springframework.beans.factory.annotation.autowired; import org.springframework.context.annotation.bean; import org.springframework.context.annotation.configuration; import org.springframework.jdbc.datasource.drivermanagerdatasource; import org.springframework.orm.jpa.jpatransactionmanager; import org.springframework.orm.jpa.localcontainerentitymanagerfactorybean; import org.springframework.orm.jpa.vendor.database; import org.springframework.orm.jpa.vendor.hibernatejpavendoradapter;  @configuration public class persistencejpaconfig {   @bean   public datasource datasource() {     drivermanagerdatasource driver = new drivermanagerdatasource();     driver.setdriverclassname("org.postgresql.driver");     driver.seturl("jdbc:postgresql://localhost:5432/test");     driver.setusername("test");     driver.setpassword("test");     return driver;   }    @bean   public localcontainerentitymanagerfactorybean entitymanagerfactory() {     hibernatejpavendoradapter vendoradapter = new hibernatejpavendoradapter();     vendoradapter.setdatabase(database.postgresql);     vendoradapter.setgenerateddl(true);      localcontainerentitymanagerfactorybean factory = new localcontainerentitymanagerfactorybean();     factory.setjpavendoradapter(vendoradapter);     factory.setpackagestoscan(getclass().getpackage().getname());     factory.setdatasource(datasource());      return factory;   }    @bean   @autowired   public jpatransactionmanager transactionmanager() {     jpatransactionmanager txmanager = new jpatransactionmanager();     txmanager.setentitymanagerfactory(entitymanagerfactory().getobject());      return txmanager;   } } 

i have classic model , here repository :

package com.spring.persistence.repositories;  import com.spring.persistence.model.applicationuser; import org.springframework.beans.factory.annotation.qualifier; import org.springframework.data.jpa.repository.jparepository; import org.springframework.stereotype.repository;  @repository @qualifier(value = "applicationuserrepository") public interface applicationuserrepository extends jparepository<applicationuser,long>{  } 

a simple service :

package com.spring.persistence.service;  import com.spring.persistence.model.applicationuser; import com.spring.persistence.repositories.applicationuserrepository; import java.util.list; import javax.annotation.postconstruct; import javax.transaction.transactional; import org.springframework.beans.factory.annotation.autowired; import org.springframework.stereotype.service;  @service @transactional public class applicationuserservice {      private final applicationuserrepository applicationuserrepository;      @autowired     public applicationuserservice(applicationuserrepository applicationuserrepository) {       this.applicationuserrepository = applicationuserrepository;     }       public applicationuser createuser(string username, string type, string country)     {         applicationuser user = new applicationuser(username,type,country);         return applicationuserrepository.saveandflush(user);     }     public list<applicationuser> getalluser()     {       return applicationuserrepository.findall();     }     public applicationuser getuser(long id)     {         applicationuser user = null;         if(id != null)         {             user = applicationuserrepository.findone(id);         }         return user;     }     public boolean deleteuser(long id)     {         if(id != null)         {             try{                 applicationuserrepository.delete(id);                 return true;             }             catch(illegalargumentexception ex)             {                 ex.printstacktrace();                 return false;             }         }         else         {             system.out.println("id null");             return false;         }        } } 

and webcontroller :

@restcontroller @requestmapping(value = "/applicationuser") public class applicationusercontroller {      @autowired     private applicationuserservice applicationuserservice;      @requestmapping(value="/",method = requestmethod.get)     @responsebody     public applicationuser index()     {         return applicationuserservice.createuser("test", "test", "test");      }  } 

it's possible missing lot of things (annotation,initializer,code) i'm here learn , advices can me.

thanks answers

spring data rest

this project allow achieve goals less boilerplate code.

follow accessing jpa data rest guide demonstrates how configure spring boot + spring data rest absolutely minimal configuration.

once have basic understanding, can add more functionality meet business requirements.

detailed information provided in spring data rest documentation