spring+mybati java config配置引起的bean相互引用日誌警示告問題

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• 報循環參考警告的配置

/** * 資料來源配置 * 資料來源配置個人覺得還是xml好些。用xml配置改動增加配置只需重啟 *  * @author doctor * * @time 2015年3月3日 下午2:57:10 */@Configurationpublic class DataSourceConfig {    @Bean    public static PropertySourcesPlaceholderConfigurer propertySourcesPlaceholderConfigurer() {        return new PropertySourcesPlaceholderConfigurer();    }    @Target(ElementType.TYPE)    @Retention(RetentionPolicy.RUNTIME)    @Documented    public @interface DbH2 {    }    /**     * H2 資料原配置     * 不用import ,原因文檔見：{@code Configuration}文檔中的With nested 　Configuration　 classes部分     * spring源碼如何處理見：     * {@link org.springframework.context.annotation.ConfigurationClassParser#processMemberClasses(ConfigurationClass, SourceClass) }     *      * @author doctor     *     * @time 2015年3月3日 下午3:26:15     */    @Configuration    @MapperScan(basePackages = { "com.doctor.spring4.common.mapper" }, annotationClass = DbH2.class, sqlSessionFactoryRef = "dbH2SqlSessionFactory")    @PropertySource("classpath:/spring4_2015Pro/jdbc-H2.properties")    static class MybatisH2Config {        @Value("${jdbc.H2.url}")        private String url;        @Value("${jdbc.H2.user}")        private String user;        @Value("${jdbc.H2.password}")        private String password;        @Value("${jdbc.H2.driverClassName}")        private String driverClassName;        @Value("${jdbc.H2.initialSize}")        private int initialSize;        @Value("${jdbc.H2.minIdle}")        private int minIdle;        @Value("${jdbc.H2.maxActive}")        private int maxActive;        @Value("${jdbc.H2.maxWait}")        private long maxWait;        @Value("${jdbc.H2.minEvictableIdleTimeMillis}")        private long minEvictableIdleTimeMillis;        @Value("${jdbc.H2.timeBetweenEvictionRunsMillis}")        private long timeBetweenEvictionRunsMillis;        @Value("${jdbc.H2.validationQuery}")        private String validationQuery;        @Value("${jdbc.H2.testWhileIdle}")        private boolean testWhileIdle;        @Value("${jdbc.H2.testOnBorrow}")        private boolean testOnBorrow;        @Value("${jdbc.H2.testOnReturn}")        private boolean testOnReturn;        @Value("${jdbc.H2.poolPreparedStatements}")        private boolean poolPreparedStatements;        @Value("${jdbc.H2.maxPoolPreparedStatementPerConnectionSize}")        private int maxPoolPreparedStatementPerConnectionSize;        @Bean(name = "dbH2DataSource", initMethod = "init", destroyMethod = "close")        public DataSource dbH2DataSource() {            DruidDataSource druidDataSource = new DruidDataSource();            druidDataSource.setUrl(url);            druidDataSource.setUsername(user);            druidDataSource.setPassword(password);            druidDataSource.setDriverClassName(driverClassName);            druidDataSource.setInitialSize(initialSize);            druidDataSource.setMinIdle(minIdle);            druidDataSource.setMaxActive(maxActive);            druidDataSource.setMaxWait(maxWait);            druidDataSource.setMinEvictableIdleTimeMillis(minEvictableIdleTimeMillis);            druidDataSource.setTimeBetweenEvictionRunsMillis(timeBetweenEvictionRunsMillis);            druidDataSource.setValidationQuery(validationQuery);            druidDataSource.setTestWhileIdle(testWhileIdle);            druidDataSource.setTestOnBorrow(testOnBorrow);            druidDataSource.setTestOnReturn(testOnReturn);            druidDataSource.setPoolPreparedStatements(poolPreparedStatements);            druidDataSource.setMaxPoolPreparedStatementPerConnectionSize(maxPoolPreparedStatementPerConnectionSize);            return druidDataSource;        }        @Bean(name = "dbH2SqlSessionFactory")        @Resource(name = "dbH2DataSource")        public SqlSessionFactory DbH2SqlSessionFactory(DataSource dataSource) throws Exception {            SqlSessionFactoryBean sqlSessionFactoryBean = new SqlSessionFactoryBean();            sqlSessionFactoryBean.setDataSource(dataSource);            sqlSessionFactoryBean.setTypeHandlersPackage("");            sqlSessionFactoryBean.setConfigLocation(new ClassPathResource("/spring4_2015Config/mybatis-db-config.xml"));            return sqlSessionFactoryBean.getObject();        }    }}

dbH2DataSource，dbH2SqlSessionFactory，MapperScan有依賴關係．

• 如果把MapperScan單獨配置，就不會有警告，例如：

　

/** * 資料來源配置 * 資料來源配置個人覺得還是xml好些。用xml配置改動增加配置只需重啟 *  * @author doctor * * @time 2015年3月3日 下午2:57:10 */@Configurationpublic class DataSourceConfig {    @Bean    public static PropertySourcesPlaceholderConfigurer propertySourcesPlaceholderConfigurer() {        return new PropertySourcesPlaceholderConfigurer();    }    @Target(ElementType.TYPE)    @Retention(RetentionPolicy.RUNTIME)    @Documented    public @interface DbH2 {    }    /**     * H2 資料原配置     * 不用import ,原因文檔見：{@code Configuration}文檔中的With nested 　Configuration　 classes部分     * spring源碼如何處理見：     * {@link org.springframework.context.annotation.ConfigurationClassParser#processMemberClasses(ConfigurationClass, SourceClass) }     *      * @author doctor     *     * @time 2015年3月3日 下午3:26:15     */    @Configuration    @PropertySource("classpath:/spring4_2015Pro/jdbc-H2.properties")    static class MybatisH2Config {        @Value("${jdbc.H2.url}")        private String url;        @Value("${jdbc.H2.user}")        private String user;        @Value("${jdbc.H2.password}")        private String password;        @Value("${jdbc.H2.driverClassName}")        private String driverClassName;        @Value("${jdbc.H2.initialSize}")        private int initialSize;        @Value("${jdbc.H2.minIdle}")        private int minIdle;        @Value("${jdbc.H2.maxActive}")        private int maxActive;        @Value("${jdbc.H2.maxWait}")        private long maxWait;        @Value("${jdbc.H2.minEvictableIdleTimeMillis}")        private long minEvictableIdleTimeMillis;        @Value("${jdbc.H2.timeBetweenEvictionRunsMillis}")        private long timeBetweenEvictionRunsMillis;        @Value("${jdbc.H2.validationQuery}")        private String validationQuery;        @Value("${jdbc.H2.testWhileIdle}")        private boolean testWhileIdle;        @Value("${jdbc.H2.testOnBorrow}")        private boolean testOnBorrow;        @Value("${jdbc.H2.testOnReturn}")        private boolean testOnReturn;        @Value("${jdbc.H2.poolPreparedStatements}")        private boolean poolPreparedStatements;        @Value("${jdbc.H2.maxPoolPreparedStatementPerConnectionSize}")        private int maxPoolPreparedStatementPerConnectionSize;        @Bean(name = "dbH2DataSource", initMethod = "init", destroyMethod = "close")        public DataSource dbH2DataSource() {            DruidDataSource druidDataSource = new DruidDataSource();            druidDataSource.setUrl(url);            druidDataSource.setUsername(user);            druidDataSource.setPassword(password);            druidDataSource.setDriverClassName(driverClassName);            druidDataSource.setInitialSize(initialSize);            druidDataSource.setMinIdle(minIdle);            druidDataSource.setMaxActive(maxActive);            druidDataSource.setMaxWait(maxWait);            druidDataSource.setMinEvictableIdleTimeMillis(minEvictableIdleTimeMillis);            druidDataSource.setTimeBetweenEvictionRunsMillis(timeBetweenEvictionRunsMillis);            druidDataSource.setValidationQuery(validationQuery);            druidDataSource.setTestWhileIdle(testWhileIdle);            druidDataSource.setTestOnBorrow(testOnBorrow);            druidDataSource.setTestOnReturn(testOnReturn);            druidDataSource.setPoolPreparedStatements(poolPreparedStatements);            druidDataSource.setMaxPoolPreparedStatementPerConnectionSize(maxPoolPreparedStatementPerConnectionSize);            return druidDataSource;        }        @Bean(name = "dbH2SqlSessionFactory")        @Resource(name = "dbH2DataSource")        public SqlSessionFactory DbH2SqlSessionFactory(DataSource dataSource) throws Exception {            SqlSessionFactoryBean sqlSessionFactoryBean = new SqlSessionFactoryBean();            sqlSessionFactoryBean.setDataSource(dataSource);            sqlSessionFactoryBean.setTypeHandlersPackage("");            sqlSessionFactoryBean.setConfigLocation(new ClassPathResource("/spring4_2015Config/mybatis-db-config.xml"));            return sqlSessionFactoryBean.getObject();        }    }    @Configuration    @MapperScan(basePackages = { "com.doctor.spring4.common.mapper" }, annotationClass = DbH2.class, sqlSessionFactoryRef = "dbH2SqlSessionFactory")    static class MyBatisMapperConfig {        // MapperScan註解不要和資料來源定義的配置寫在一起，（如MybatisH2Config配置上），        // 否此會導致循環參考初始化bean問題．        // 看來xml配置還是有優勢的        // 03-11 17:01:50.010 main WARN o.s.b.f.s.DefaultListableBeanFactory - Bean creation        // exception on FactoryBean type check:        // org.springframework.beans.factory.BeanCreationException: Error creating bean with name        // ‘userMapper‘ defined in file        // [/home/cui/workspace/spring4-2015/target/classes/com/doctor/spring4/common/mapper/UserMapper.class]:        // Cannot resolve reference to bean ‘dbH2SqlSessionFactory‘ while setting bean property        // ‘sqlSessionFactory‘; nested exception is        // org.springframework.beans.factory.BeanCurrentlyInCreationException: Error creating bean        // with name ‘dbH2SqlSessionFactory‘: Requested bean is currently in creation: Is there an        // unresolvable circular reference?    }}

• 但是最好的配置還是如下：

/** * 資料來源配置 * 資料來源配置個人覺得還是xml好些。用xml配置改動增加配置只需重啟 *  * 注意：MybatisH2Config　類中兩個有依賴關係的bean注入方法，不要用set方法形式注入， * 有可能導致注入循環參考問題．（@MapperScan　註解在MybatisH2Config，而且註解依賴裡面的bean定義）． * @author doctor * * @time 2015年3月3日 下午2:57:10 */@Configurationpublic class DataSourceConfig {    @Bean    public static PropertySourcesPlaceholderConfigurer propertySourcesPlaceholderConfigurer() {        return new PropertySourcesPlaceholderConfigurer();    }    @Target(ElementType.TYPE)    @Retention(RetentionPolicy.RUNTIME)    @Documented    public @interface DbH2 {    }    /**     * H2 資料原配置     * 不用import ,原因文檔見：{@code Configuration}文檔中的With nested 　Configuration　 classes部分     * spring源碼如何處理見：     * {@link org.springframework.context.annotation.ConfigurationClassParser#processMemberClasses(ConfigurationClass, SourceClass) }     *      * @author doctor     *     * @time 2015年3月3日 下午3:26:15     */    @Configuration    @MapperScan(basePackages = { "com.doctor.spring4.common.mapper" }, annotationClass = DbH2.class, sqlSessionFactoryRef = "dbH2SqlSessionFactory")    @PropertySource("classpath:/spring4_2015Pro/jdbc-H2.properties")    static class MybatisH2Config {        @Value("${jdbc.H2.url}")        private String url;        @Value("${jdbc.H2.user}")        private String user;        @Value("${jdbc.H2.password}")        private String password;        @Value("${jdbc.H2.driverClassName}")        private String driverClassName;        @Value("${jdbc.H2.initialSize}")        private int initialSize;        @Value("${jdbc.H2.minIdle}")        private int minIdle;        @Value("${jdbc.H2.maxActive}")        private int maxActive;        @Value("${jdbc.H2.maxWait}")        private long maxWait;        @Value("${jdbc.H2.minEvictableIdleTimeMillis}")        private long minEvictableIdleTimeMillis;        @Value("${jdbc.H2.timeBetweenEvictionRunsMillis}")        private long timeBetweenEvictionRunsMillis;        @Value("${jdbc.H2.validationQuery}")        private String validationQuery;        @Value("${jdbc.H2.testWhileIdle}")        private boolean testWhileIdle;        @Value("${jdbc.H2.testOnBorrow}")        private boolean testOnBorrow;        @Value("${jdbc.H2.testOnReturn}")        private boolean testOnReturn;        @Value("${jdbc.H2.poolPreparedStatements}")        private boolean poolPreparedStatements;        @Value("${jdbc.H2.maxPoolPreparedStatementPerConnectionSize}")        private int maxPoolPreparedStatementPerConnectionSize;        @Bean(name = "dbH2DataSource", initMethod = "init", destroyMethod = "close")        public DataSource dbH2DataSource() {            DruidDataSource druidDataSource = new DruidDataSource();            druidDataSource.setUrl(url);            druidDataSource.setUsername(user);            druidDataSource.setPassword(password);            druidDataSource.setDriverClassName(driverClassName);            druidDataSource.setInitialSize(initialSize);            druidDataSource.setMinIdle(minIdle);            druidDataSource.setMaxActive(maxActive);            druidDataSource.setMaxWait(maxWait);            druidDataSource.setMinEvictableIdleTimeMillis(minEvictableIdleTimeMillis);            druidDataSource.setTimeBetweenEvictionRunsMillis(timeBetweenEvictionRunsMillis);            druidDataSource.setValidationQuery(validationQuery);            druidDataSource.setTestWhileIdle(testWhileIdle);            druidDataSource.setTestOnBorrow(testOnBorrow);            druidDataSource.setTestOnReturn(testOnReturn);            druidDataSource.setPoolPreparedStatements(poolPreparedStatements);            druidDataSource.setMaxPoolPreparedStatementPerConnectionSize(maxPoolPreparedStatementPerConnectionSize);            return druidDataSource;        }        @Bean(name = "dbH2SqlSessionFactory")        public SqlSessionFactory DbH2SqlSessionFactory() throws Exception {            SqlSessionFactoryBean sqlSessionFactoryBean = new SqlSessionFactoryBean();            sqlSessionFactoryBean.setDataSource(dbH2DataSource());            sqlSessionFactoryBean.setTypeHandlersPackage("");            sqlSessionFactoryBean.setConfigLocation(new ClassPathResource("/spring4_2015Config/mybatis-db-config.xml"));            return sqlSessionFactoryBean.getObject();        }    }}

spring+mybati　java config配置引起的bean相互引用日誌警示告問題