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[application.yml]: # 'https://cdn.jsdelivr.net/gh/ZhuangRenyang/yoi/blogs/wallhaven-kxwqwq.jpg?vw=6081&vh=2948'
## application.yml配置
```yml
#指定服务的端口
server:
port: #端口号
#公共配置
mybatis:…
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This problem seems to have been solved in the new version #22614
but in **Sqlserver** its reproduce.
Similar problems:#17973 ,#20352 ,#23799
There seems to be a connection between these proble…
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代码
PageHelper.startPage(1, 10);
QueryWrapper wrapper=QueryWrapper.create()
.eq("db_key",vo.getDbKey());
List list = resourceDbService.list(wrapper);
报错如下
### SQL: SELECT …
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大佬好,我们用Druid一直偶发`CommunicationsException`,升级到最新的1.2.22仍然出现,辛苦帮看下我们哪的姿势不对,万分感谢。
**dbtype:MySQL**
**dbversion:5.7**
**druid verion:1.2.22**
配置如下:
```
druid:
# 参考配置见:https://github.com/aliba…
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https://segmentfault.com/a/1190000013561054 (大话架构”阿里架构师分享的Java程序员需要突破的技术要点)
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https://github.com/vipshop/vjtools (The vip.com's java coding standard, libraries and tools, 主力于Java的唯品会…
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A simple SQL query is not very time-consuming. However, the exception prompt exceeds the maximum MySQL connection time
```
select * from tbl where cid = ? and uid = ? and postid = ? and resour…
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**My Envirenment:**
`com.zaxxer:HikariCP:jar:2.7.9`
`springboot 2.0.5.RELEASE`
**My Datasource Config:**
`spring.datasource.type=com.zaxxer.hikari.HikariDataSource
spring.datasource.hikari.mini…
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java.sql.SQLRecoverableException: Closed Connection
at oracle.jdbc.driver.PhysicalConnection.needLine(PhysicalConnection.java:5389)
at oracle.jdbc.driver.OracleStatement.closeOrCache(OracleStateme…
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部署之后,首页访问正常。但是点击其他其他会出现错误,具体错误如下:
```java
2020-02-01 13:50:42.321 ERROR 9408 --- [nio-8080-exec-1] o.a.c.c.C.[.[.[/].[dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] in con…
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No qualifying bean of type 'tk.mybatis.mapper.common.Mapper' available: expected single matching bean but found 3
异常如上。
通用Service 如下:
@Service
public abstract class AbsBaseService implements Bas…