解決（springboot項目）mysql表名大寫，造成jpa Table doesn't exist問題

這個問題有2種解決方法：

我的報錯是：

 java.sql.SQLSyntaxErrorException: Table 'gaei_ms.gaei_work_task' doesn't exist

 

方法一：

轉自：https://confluence.atlassian.com/fishkb/table-xxx-doesn-t-exist-error-with-mysql-server-302810019.html

1. 2012-09-05 10:12:30,728 ERROR [btpool0-472 ] fisheye.app TotalityFilter-logExceptionDetails - Exception "com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Table 'fecru.AO_B434B9_WEB_HOOK' doesn't exist" (net.java.ao.sql.ActiveObjectSqlException) while processing "/plugins/servlet/webhooks/list" (Referer:"https://fisheye.bln.native-instruments.de/admin/viewServerSettings.do")
2. net.java.ao.sql.ActiveObjectSqlException: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Table 'fecru.AO_B434B9_WEB_HOOK' doesn't exist
3. at com.atlassian.activeobjects.internal.EntityManagedActiveObjects.find(EntityManagedActiveObjects.java:114)
4. at com.atlassian.activeobjects.osgi.DelegatingActiveObjects.find(DelegatingActiveObjects.java:71)
5. at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
6. at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
7. ...
8. Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Table 'fecru.AO_B434B9_WEB_HOOK' doesn't exist

原因：

MySQL對lower_case_table_names使用區分大小寫的表名比較設置  （可能值為'0'）。但是，FishEye在表名  FE-4276中不一致-數據庫表OPEN的大小寫不一致。您可以使用以下查詢確認設置： 

show variables like 'lower_case_table_names'; 

解決：

1.  在MySQL中設置  lower_case_table_names的值為'0'
2. 重新啟動MySQL和FishEye / Crucible。

 

 

 

方法二：

我的情況是springboot項目，配置文件的改法略有不同：

我的改法是在配置文件中加上這一行：

spring.jpa.hibernate.naming.physical-strategy=org.hibernate.boot.model.naming.PhysicalNamingStrategyStandardImpl

 

以下轉自：https://blog.csdn.net/Halleycomett/article/details/78638639

報錯信息

1. org.springframework.dao.InvalidDataAccessResourceUsageException: could not extract ResultSet; SQL [n/a]; nested exception is org.hibernate.exception.SQLGrammarException: could not extract ResultSet
2.  
3.  
4. Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Table XXX doesn't exist

報錯原因調查

mysql里實際表名都是大寫

嘗試在entity上標記表名大寫，實際測試無效，仍然找不到表

1. @Entity
2. @Data
3. @Table(name = "T_BASE_ORDER_PRINT_CLIENT")
4. public class MerchantPrinter {
5.  
6. @Id
7. @Column(name = "print_client_id")
8. private String id;
9.  
10. @Column(name = "merchant_id")
11. private String merchantId;
12.  
13. private String imei;
14.  
15. }

最終的解決方案

1. 在spring jpa配置中增加physical-strategy配置解決問題
2.  
3. spring:
4. datasource:
5. driver- class-name: com.mysql.jdbc.Driver
6. url: jdbc:mysql: //XXX:3306/dbname
7. username: root
8. password: *******
9. schema:
10. jpa:
11. hibernate:
12. ddl-auto: none
13. naming:
14. physical-strategy: org .hibernate.boot.model.naming.PhysicalNamingStrategyStandardImpl
15. show-sql: true

physical naming strategy ：used to convert a “logical name” (either implicit or explicit) name of a table or column into a physical name (e.g. following corporate naming guidelines) 
physical naming strategy：物理命名策略，用於轉換“邏輯名稱”(隱式或顯式)的表或列成一個物理名稱