工做中使用SpringBoot出現的問題

1.使用@ConfigurationProperties註解時出現異常 
spring boot Configuration Annotation Proessor not found in classpath

解決方案：maven添加依賴
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-configuration-processor</artifactId>
    </dependency>

2.使用SpringJPA操做數據庫
org.springframework.dao.InvalidDataAccessResourceUsageException: error performing isolated work; SQL [n/a]; nested exception is org.hibernate.exception.SQLGrammarException: error performing isolated work
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Table 'ordersell.hibernate_sequence' doesn't exist

緣由：惟一標識缺乏註解 @GeneratedValue(strategy = GenerationType.IDENTITY)
    方案：正確方式爲:
          @Id
          @GeneratedValue(strategy = GenerationType.IDENTITY)
          private Integer categoryId;