请帮助我解决 Spring Boot 2 中的错误，

Question

I have a procedure stored in sql server 2014:

create database db_spring_2
use db_spring_2
create table tb_usuario( id_usuario int primary key identity(1,1), nombre varchar(200), apellidopat varchar(200), apellidomat varchar(200), email varchar(200) unique, foto_url varchar(500) )
insert into tb_usuario values('Marcos','Marcos','MAr','mar@gmail.com', '123.jpg')

go alter proc usp_usuario as begin select nombre from tb_usuario end

I'm calling from in a Spring boot 2 project but I get this error:

 019-08-21 19:51:31.284 ERROR 6752 --- [nio-8080-exec-2] ohengine.jdbc.spi.SqlExceptionHelper : The column name id_usuario is not valid. 2019-08-21 19:51:31.292 ERROR 6752 --- [nio-8080-exec-2] oaccC[.[.[/].[dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.springframework.orm.jpa.JpaSystemException: could not execute query; nested exception is org.hibernate.exception.GenericJDBCException: could not execute query] with root cause com.microsoft.sqlserver.jdbc.SQLServerException: The column name id_usuario is not valid. at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDriverError(SQLServerException.java:206) ~[mssql-jdbc-6.1.0.jre8.jar:na] at com.microsoft.sqlserver.jdbc.SQLServerResultSet.findColumn(SQLServerResultSet.java:686) ~[mssql-jdbc-6.1.0.jre8.jar:na] at com.microsoft.sqlserver.jdbc.SQLServerResultSet.getInt(SQLServerResultSet.java:2337) ~[mssql-jdbc-6.1.0.jre8.jar:na] at com.zaxxer.hikari.pool.HikariProxyResultSet.getInt(HikariProxyResultSet.java) ~[HikariCP-3.2.0.jar:na] at org.hibernate.type.descriptor.sql.IntegerTypeDescriptor$2.doExtract(IntegerTypeDescriptor.java:62) ~[hibernate-core-5.3.10.Final.jar:5.3.10.Final] at org.hibernate.type.descriptor.sql.BasicExtractor.extract(BasicExtractor.java:47) ~[hibernate-core-5.3.10.Final.jar:5.3.10.Final] at org.hibernate.type.AbstractStandardBasicType.nullSafeGet(AbstractStandardBasicType.java:257) ~[hibernate-core-5.3.10.Final.jar:5.3.10.Final] at org.hibernate.type.AbstractStandardBasicType.nullSafeGet(AbstractStandardBasicType.java:253) ~[hibernate-core-5.3.10.Final.jar:5.3.10.Final] at org.hibernate.type.AbstractStandardBasicType.nullSafeGet(AbstractStandardBasicType.java:243) ~[hibernate-core-5.3.10.Final.jar:5.3.10.Final] at org.hibernate.type.AbstractStandardBasicType.hydrate(AbstractStandardBasicType.java:329) ~[hibernate-core-5.3.10.Final.jar:5.3.10.Final] at org.hibernate.loader.Loader.extractKeysFromResultSet(Loader.java:793) ~[hibernate-core-5.3.10.Final.jar:5.3.10.Final]

Here the method where you called the stored procedure

 package com.example.demo.repository; import java.util.ArrayList; import java.util.List; import org.springframework.data.jpa.repository.Query; import org.springframework.data.repository.CrudRepository; import org.springframework.stereotype.Repository; import com.example.demo.entity.Usuarios; @Repository public interface IUsuarioRepository extends CrudRepository<Usuarios, Integer>{ @Query(value = "exec usp_usuario" , nativeQuery=true ) public List<Usuarios> getUsuarios(); }

My Service interface

 package com.example.demo.repository; import java.util.List; import com.example.demo.entity.Usuarios; public interface IUsuarioService { public List<Usuarios> getUsuarios(); }

And my service

 package com.example.demo.services; import java.util.List; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import org.springframework.transaction.annotation.Transactional; import com.example.demo.entity.Usuarios; import com.example.demo.repository.IUsuarioRepository; import com.example.demo.repository.IUsuarioService; @Transactional @Service public class UusuarioServices implements IUsuarioService { @Autowired private IUsuarioRepository usuarioR; @Override public List<Usuarios> getUsuarios() { // TODO Auto-generated method stub return usuarioR.getUsuarios(); } }

My Controller Rest

 @RestController @RequestMapping("/usuario") public class UsuarioController { @Autowired private IUsuarioService usuarioS; @GetMapping("/listadoUsuario") public List<Usuarios> getUsuario(){ return usuarioS.getUsuarios(); } }

Answer 1

Looks like IUsuarioRepository is attempting to populate the entire Usuarios entity but your query returned only the nombre field.

You haven't shown all the relevant code, ie the definition of Usuarios , but the query should probably be select *... not select nombre... The current query returns only the single nombre column, while the framework is expecting the returned result set to contain (at a minimum) the id_usuario column as well.