spring cloud项目读取配置管理

spring cloud项目读取配置管理

摘要
spring cloud config server配置好了数据库连接信息，这个项目读取config，获取连接信息。这里以mybtis作为列子。从服务器读取jdbc信息后，运行mybatis程序。

确认服务是否成功
http://localhost:8888/demo-config/test

{"name":"demo-config","profiles": [ "test" ],"label":"master","version":"02d28ad4925aa9bd1bf8a48d2edbf04ce61aa45a","propertySources": [ {"name":"https://git.oschina.net/penghaozhong/demo.git/demo-config-repo/demo-config-test.properties","source":{"jdbc.url":"jdbc:mysql://localhost:3306/demo?characterEncoding=UTF-8","jdbc.username":"root","jdbc.driver":"com.mysql.jdbc.Driver","jdbc.password":"xxxxxx","jdbc.type":"mysql"}} ]}

    2. 配置读取配置文件

  



在bootstrap.properties中添加读取配置管理的地址。

3. 读取配置文件属性，这里采用@ConfigurationProperties

/**
 * 读取数据库配置文件
 *  @author  penghaozhong
 *
  */
@ConfigurationProperties(prefix = DataSourceProperties.PREFIX, ignoreUnknownFields =  false)
public   class  DataSourceProperties {
    
         public DataSourceProperties() {
         super();
    }
         // 对应配置文件里的配置键
         public  final  static String PREFIX="jdbc";    
        
         private String type; 
         private String driver; 
         private String url; 
         private String username; 
         private String password;
        
         public String getType() {
             return type;
        }
         public  void setType(String type) {
             this.type = type;
        }
         public String getDriver() {
             return driver;
        }
         public  void setDriver(String driver) {
             this.driver = driver;
        }
         public String getUrl() {
             return url;
        }
         public  void setUrl(String url) {
             this.url = url;
        }
         public String getUsername() {
             return username;
        }
         public  void setUsername(String username) {
             this.username = username;
        }
         public String getPassword() {
             return password;
        }
         public  void setPassword(String password) {
             this.password = password;
        }

}

4. 配置mybatis

@Configuration
@MapperScan("com.phz.test.spring.cloud.demo")
@EnableConfigurationProperties(DataSourceProperties. class)
@EnableTransactionManagement
public  class MybatisDataSource {

     //  mybaits mapper xml搜索路径
     private  final  static String MAPPERLOCATIONS = "classpath:/mappings/**/*.xml";
     private  final  static String CONFIGLOCATION = "classpath:/mybatis-config.xml";

    @Autowired
     private  DataSourceProperties dataSourceProperties;
     private DruidDataSource datasource =  null;

    @Bean(destroyMethod = "close")
     public  DataSource dataSource(){
        datasource =  new DruidDataSource();  
        datasource.setUrl(dataSourceProperties.getUrl());
        datasource.setDbType(dataSourceProperties.getType());
        datasource.setDriverClassName(dataSourceProperties.getDriver());
        datasource.setUsername(dataSourceProperties.getUsername());
        datasource.setPassword(dataSourceProperties.getPassword());
         return datasource;
    }

    @PreDestroy
     public  void close() {
         if(datasource !=  null){
            datasource.close();
        }
    }

    @Bean
     public SqlSessionFactory sqlSessionFactoryBean()  throws Exception {
        SqlSessionFactoryBean sqlSessionFactoryBean =  new SqlSessionFactoryBean();
        sqlSessionFactoryBean.setDataSource(dataSource());
        PathMatchingResourcePatternResolver resolver =  new PathMatchingResourcePatternResolver();
        sqlSessionFactoryBean.setMapperLocations(resolver.getResources(MAPPERLOCATIONS));
        sqlSessionFactoryBean.setConfigLocation(resolver.getResource(CONFIGLOCATION));
        sqlSessionFactoryBean.setTypeAliasesPackage("com.phz.test.spring.cloud.demo.entity");
         return sqlSessionFactoryBean.getObject();
    }

    @Bean
     public PlatformTransactionManager transactionManager() {
         return  new DataSourceTransactionManager(dataSource());
    }

}