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Java Spring with Hibernate Integrating Hibernate with Spring Configure Spring for Hibernate

Jose Mejia
Jose Mejia
16,750 Points

Add a Spring Bean to the DataConfig class that configures a BasicDataSource with the following settings: - Connection UR

Bummer! The driver class name is incorrect. expected:<org.h2.Driver> but was:<null>

I dont know what I am doing wrong ? can someone explain me whats missing? Thanks!!

com/teamtreehouse/contactmgr/config/DataConfig.java
package com.teamtreehouse.contactmgr.config;

import org.apache.tomcat.dbcp.dbcp2.BasicDataSource;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.PropertySource;
import org.springframework.core.env.Environment;
import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.Resource;
import org.springframework.orm.hibernate5.LocalSessionFactoryBean;

import javax.sql.DataSource;
@Configuration
@PropertySource("app.properties")
public class DataConfig {
  @Autowired
  private Environment env;

  @Bean
    public DataSource dataSource() {
      BasicDataSource ds = new BasicDataSource();

      // Driver class name
      ds.setDriverClassName(env.getProperty("org.h2.Driver"));

      // Set URL
      ds.setUrl(env.getProperty("jdbc:h2:mem:contactmgr"));

      return ds;
    }


}
app.properties
org.h2.Driver
jdbc:h2:mem:contactmgr
Benjamin Smith
Benjamin Smith
18,184 Points

package com.teamtreehouse.contactmgr.config;

import org.apache.tomcat.dbcp.dbcp2.BasicDataSource; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import org.springframework.context.annotation.PropertySource; import org.springframework.core.env.Environment; import org.springframework.core.io.ClassPathResource; import org.springframework.core.io.Resource; import org.springframework.orm.hibernate5.LocalSessionFactoryBean;

import javax.sql.DataSource;

@Configuration @PropertySource("app.properties") public class DataConfig {

@Autowired private Environment env;

@Bean public DataSource dataSource() { BasicDataSource ds = new BasicDataSource();

// Use the name assigned to the value in "app.properties"
ds.setDriverClassName(env.getProperty("contactmgr.db.driver"));

// Use the name assigned to the value in "app.properties"
ds.setUrl(env.getProperty("contactmgr.db.url"));

return ds;

} }

// Assign names for the values in "app.properties"

contactmgr.db.driver = org.h2.Driver

contactmgr.db.url = jdbc:h2:mem:contactmgr

1 Answer

Florian Tönjes
seal-mask
.a{fill-rule:evenodd;}techdegree seal-36
Florian Tönjes
Full Stack JavaScript Techdegree Graduate 50,856 Points

Hey Jose,

"org.h2.Driver" is the driver name already so you don't have to fetch it as a property. Same goes for the connection URL.

Change

      ds.setDriverClassName(env.getProperty("org.h2.Driver"));
      ds.setUrl(env.getProperty("jdbc:h2:mem:contactmgr"));

to

      ds.setDriverClassName("org.h2.Driver");
      ds.setUrl("jdbc:h2:mem:contactmgr");

and you should be fine.

Kind Regards, Florian

Jose Mejia
Jose Mejia
16,750 Points

Thanks, to take your time and answer my question. That help me!