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

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")
net.java.ao.sql.ActiveObjectSqlException: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Table 'fecru.AO_B434B9_WEB_HOOK' doesn't existat com.atlassian.activeobjects.internal.EntityManagedActiveObjects.find(EntityManagedActiveObjects.java:114)at com.atlassian.activeobjects.osgi.DelegatingActiveObjects.find(DelegatingActiveObjects.java:71)at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
...
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

org.springframework.dao.InvalidDataAccessResourceUsageException: could not extract ResultSet; SQL [n/a]; nested exception is org.hibernate.exception.SQLGrammarException: could not extract ResultSet
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

@Entity
@Data
@Table(name = "T_BASE_ORDER_PRINT_CLIENT")
public class MerchantPrinter {@Id@Column(name = "print_client_id")private String id;@Column(name = "merchant_id")private String merchantId;private String imei;}

最終的解決方案

在spring jpa配置中增加physical-strategy配置解決問題spring:datasource:driver-class-name: com.mysql.jdbc.Driverurl: jdbc:mysql://XXX:3306/dbnameusername: rootpassword: *******schema:jpa:hibernate:ddl-auto: nonenaming:physical-strategy:  org.hibernate.boot.model.naming.PhysicalNamingStrategyStandardImplshow-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，用于轉換“邏輯名稱”(隱式或顯式)的表或列成一個物理名稱