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spring boot 讀取.yml失敗

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暮色呼如 2019-05-12 15:36:36

1、application.ymlspring:profiles:active:devdatasource:url:jdbc:mysql://192.168.2.201:3306/pmsd?useUnicode=true&characterEncoding=utf8&ssl=falseusername:app_pmsdpassword:635151_Itpdriver-class-name:com.mysql.jdbc.Driverdruid:initial-size:1minIdle:5maxActive:20timeBetweenEvictionRunsMillis:60000minEvictableIdleTimeMillis:3000002、DataSourceProperties.java@Component@ConfigurationProperties(prefix="spring.datasource")publicclassDataSourceProperties{privateStringurl;publicStringgetUrl(){returnurl;}publicvoidsetUrl(Stringurl){this.url=url;}}3、MybatisConfigurer.java@ConfigurationpublicclassMybatisConfigurer{@AutowiredprivateDataSourcePropertiesdataSourceProperties;@Bean(name="dataSource")publicDataSourcedataSource(){DruidDataSourcedruidDataSource=newDruidDataSource();druidDataSource.setUrl(dataSourceProperties.getUrl());//druidDataSource.setUsername(dataSourceProperties.getUserName());//druidDataSource.setPassword(dataSourceProperties.getPassWord());//druidDataSource.setDriverClassName(dataSourceProperties.getDriverClassName());returndruidDataSource;}}4、pom.xml有引用org.springframework.bootspring-boot-configuration-processortrue代碼如上，我在獲取dataSourceProperties得到的是null，請(qǐng)問各位大神是哪里寫的不對(duì)呢？謝謝

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2 回答

Qyouu

TA貢獻(xiàn)1786條經(jīng)驗(yàn) 獲得超11個(gè)贊

已經(jīng)解決。原因是我在MybatisConfigurer類中還有另外一個(gè)方法MapperScannerConfigurer造成的，因?yàn)閟pring會(huì)首先執(zhí)行MapperScannerConfigurer方法，在執(zhí)行的時(shí)候還沒有創(chuàng)建sqlsessionFactory，所以就會(huì)造成空指針異常

反對(duì) 回復(fù) 2019-05-12

慕少森

TA貢獻(xiàn)2019條經(jīng)驗(yàn) 獲得超9個(gè)贊

DataSourceProperties里加入代碼publicDataSourceconfig(DruidDataSourcedataSource){dataSource.setUrl(url);returndataSource;}MybatisConfigurer里修改為@BeanpublicDruidDataSourcedataSource(){DruidDataSourcedataSource=newDruidDataSource();druidProperties.config(dataSource);returndataSource;}