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

一般實體類中的屬性, 如contentType會被hibernate默認映射為content_type，如果數據庫中的字段是contenttype則會不匹配

 

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

 

 

https://blog.csdn.net/u011314442/article/details/80395579