Spring-boot集成pg、mongo多数据源过程详解

<dependency>		<groupId>org.springframework.boot</groupId>		<artifactId>spring-boot-starter-data-mongodb</artifactId>	</dependency><dependency>		<groupId>org.postgresql</groupId>		<artifactId>postgresql</artifactId>		<scope>runtime</scope>	</dependency><dependency>		<groupId>org.springframework.boot</groupId>		<artifactId>spring-boot-starter-jdbc</artifactId></dependency>

@SpringBootApplication(    exclude = {DataSourceAutoConfiguration.class,           PageHelperAutoConfiguration.class ,    		  MongoAutoConfiguration.class, MongoDataAutoConfiguration.class//禁用数据源自动配置    })@EnableEurekaClientpublic class MainApplication {、、、

spring:  # 默认的postgreSQL库 datasource:  pg:   url: jdbc:postgresql://127.0.0.1:5432/pgdb   username: us_wu   password: netcool@919   driver-class-name: org.postgresql.Driver  mg:   host: 127.0.0.1   username: aaa   password: aaa   database: mgdb   port: 27017

@Configurationpublic class DataSourceConfig {  final String cmspg="spring.datasource.pg";  @Bean(name = "pgDS")  @ConfigurationProperties(prefix =pg)   public DataSource dataSource() {    return DataSourceBuilder.create().build();  }

@Configuration@MapperScan(basePackages = {"com.**.mapper.pg"}, sqlSessionFactoryRef = "sqlSessionFactory")public class PostgresDBConfig {  @Autowired  @Qualifier("pgDS")  private DataSource pgDS;  @Bean  public SqlSessionFactory sqlSessionFactory() throws Exception {    SqlSessionFactoryBean factoryBean = new SqlSessionFactoryBean();    factoryBean.setDataSource(pgDS);      return factoryBean.getObject();  }  @Bean  public SqlSessionTemplate sqlSessionTemplate() throws Exception {    SqlSessionTemplate template = new SqlSessionTemplate(sqlSessionFactory()); // 使用上面配置的Factory    return template;  }}

@Repository@Mapperpublic interface StCableFiberMapper {  @Select("SELECT * FROM st_cable_fiber WHERE id = #{id}")  St_cable_fiber findById(@Param("id") String id);

public abstract class AbstractMongoConfigure {		private String host, database, username, password;		private int port;		// Setter methods go here..	 		/*		 * Method that creates MongoDbFactory Common to both of the MongoDb		 * connections		 */		public MongoDbFactory mongoDbFactory() throws Exception {			ServerAddress serverAddress = new ServerAddress(host, port);			List<MongoCredential> mongoCredentialList = new ArrayList<>();			mongoCredentialList.add(MongoCredential.createScramSha1Credential(username, database, password.toCharArray()));			return new SimpleMongoDbFactory(new MongoClient(serverAddress,mongoCredentialList), database);		}	 		/*		 * Factory method to create the MongoTemplate		 */		abstract public MongoTemplate getMongoTemplate() throws Exception;}@Configuration@EnableMongoRepositories(basePackages = {"com.**.mapper.mg"},mongoTemplateRef = "mongoTemplate") @ComponentScan@ConfigurationProperties(prefix = "spring.datasource.mg")public class MongoMasterConfig extends AbstractMongoConfigure{	@Override	@Bean("mongoTemplate")	public MongoTemplate getMongoTemplate() throws Exception {		return new MongoTemplate(mongoDbFactory()); 	}}

@Repositorypublic class CmCableDetailRepo{	@Autowired	private MongoTemplate mongoTemplate;	public Page<Cm_Cable> findByLevelAndName(String areacode, int level,String name,int pageNum, int pageSize){		PageRequest page = new PageRequest(pageNum, pageSize);		Query query = new Query();		Criteria criteria = new Criteria();		criteria.and("areacode").regex("^"+areacode);		if(level > -1){			criteria.and("cableSegment_level").is(level);		}		if(null != name && name.trim().length() > 0){			criteria.and("zh_label").regex(".*?"+name+".*");		}		query.addCriteria(criteria);		Long count = mongoTemplate.count(query, Cm_Cable.class);		List<Cm_Cable> list = mongoTemplate.find(query.with(page), Cm_Cable.class);		return new PageImpl<Cm_Cable>(list, page, count);	}

@Repositorypublic interface CmCableDetailMapper extends MongoRepository<Cm_Cable, String>{}