Shulou(Shulou.com)06/03 Report--

Dependence

Org.springframework.boot spring-boot-starter-data-jpa mysql mysql-connector-java

Application-database.properties

# if there is an error when initializing the database, whether to continue to start. Spring.datasource.continue-on-error=false#jdbc driver. Automatic detection through uri by default. Spring.datasource.driver-class-name=com.mysql.jdbc.Driver#jdbc url. Urispring.datasource.url=jdbc:mysql://172.28.1.227:3310/fc?useUnicode=true&autoReconnect=true&characterEncoding=utf8&zeroDateTimeBehavior=convertToNull&useServerPrepStmts=false# database connection user name spring.datasource.username=fcdev# data connection password spring.datasource.password=123456# fully qualified name, connection pool. Default automatic detection of classpathspring.datasource.type=com.zaxxer.hikari.HikariDataSource#sql script characters spring.datasource.sql-script-encoding=UTF-8#hibernate configuration parameter spring.jpa.hibernate.ddl-auto=nonespring.jpa.hibernate.naming.physical-strategy=org.springframework.boot.orm.jpa.hibernate.SpringPhysicalNamingStrategyspring.jpa.hibernate.naming.implicit-strategy=org.springframework.boot.orm.jpa.hibernate.SpringImplicitNamingStrategyspring.jpa.hibernate.use-new-id-generator-mappings=true

Source code-JpaProperties

@ ConfigurationProperties (prefix = "spring.jpa") public class JpaProperties {/ * * Additional native properties to set on the JPA provider. * / private Map properties = new HashMap (); / * * Mapping resources (equivalent to "mapping-file" entries in persistence.xml). * / private final List mappingResources = new ArrayList (); / * Name of the target database to operate on, auto-detected by default. Can be * alternatively set using the "Database" enum. * / private String databasePlatform; / * Target database to operate on, auto-detected by default. Can be alternatively set * using the "databasePlatform" property. * / private Database database; / * * Whether to initialize the schema on startup. * / private boolean generateDdl = false; / * * Whether to enable logging of SQL statements. * / private boolean showSql = false; / * * Register OpenEntityManagerInViewInterceptor. Binds a JPA EntityManager to the * thread for the entire processing of the request. * / private Boolean openInView; private Hibernate hibernate = new Hibernate ();}

Source code-HibernateJpaAutoConfiguration

@ Configuration@ConditionalOnClass ({LocalContainerEntityManagerFactoryBean.class, EntityManager.class}) @ Conditional (HibernateEntityManagerCondition.class) @ EnableConfigurationProperties (JpaProperties.class) @ AutoConfigureAfter ({DataSourceAutoConfiguration.class}) @ Import (HibernateJpaConfiguration.class) public class HibernateJpaAutoConfiguration {@ Order (Ordered.HIGHEST_PRECEDENCE + 20) static class HibernateEntityManagerCondition extends SpringBootCondition {private static final String [] CLASS_NAMES = {"org.hibernate.ejb.HibernateEntityManager", "org.hibernate.jpa.HibernateEntityManager"} @ Override public ConditionOutcome getMatchOutcome (ConditionContext context, AnnotatedTypeMetadata metadata) {ConditionMessage.Builder message = ConditionMessage .forCondition ("HibernateEntityManager") For (String className: CLASS_NAMES) {if (ClassUtils.isPresent (className, context.getClassLoader () {return ConditionOutcome .match (message.found ("class") .items (Style.QUOTE, className)) } return ConditionOutcome.noMatch (message.didNotFind ("class", "classes") .items (Style.QUOTE, Arrays.asList (CLASS_NAMES));}

SysMenu entity

Entity@Table (name= "t_sys_menu") public class SysMenu {@ Id @ GeneratedValue (strategy = GenerationType.AUTO) private Integer id; @ Column private String name; @ Override public String toString () {return "id=" + id + "; name=" + name;}}

TestHibernateDao

@ org.springframework.stereotype.Repositorypublic interface TestHibernateDao extends JpaRepository {SysMenu getSysMenuById (Integer id);}

AppContextTest

@ RunWith (SpringRunner.class) @ SpringBootTestpublic class AppContextTest {@ Autowired private TestHibernateDao testHibernateDao; @ Testpublic void hibernateTest () {SysMenu sysMenu = testHibernateDao.getSysMenuById (1); System.out.println ("menuName =" + sysMenu.getName ());}

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