我这边应该是客户端 ,对方是服务端

@Jrue0011 KeyGenerator.init （ 256 ）的确是有个默认的 SecureRandom 的，我百度出的一些 aes 加密网站 ，验证下来 128 的时候他们是没有用 SecureRandom，所以就想试下 256 的写法 。不过大家都说 SecureRandom 的确更安全，256 这个也没必要试了。

就是想请问下
AES 256 生成秘钥的时候 不使用 SecureRandom 可以吗，写法是什么样的

还有 SecureRandom 这种写法其实用过 ，但是也不知道为什么每次加密解密都是都是利用 SecureRandom 生成的 key，但是实际上这个 key 并不是“随机的”，加密解密其实都是用同一个 key

楼主加油

@zhongjun96 电脑里所有文件都被加密了 一张骷髅头的图 留了一个邮箱

@libook 嗯 用个唯一索引来保存回调 id 的应该是可行，现在接受后的确还要处理业务逻辑也用了消息队列了

SELECT
a.*,
b.*
FROM
lefta a
LEFT JOIN ( SELECT max( id ), a_id FROM leftb GROUP BY a_id ) b ON a.id = b.a_id
差不多这样子也行了

@intmax2147483647 不是 我就想问下 urlencode 了&和= 您有什么办一个个全取出来

@leafre
http://127.0.0.1:8808/test/t1?name%3Dbob%26id%3Daaaaa%26orderNum%3D2019%26charset%3Dutf-8 我用这个试好像还是不行

@mgcnrx11 这样也不行啊 回调我方法的时候不会是这样的 http://127.0.0.1:8808/test/t1?name=bob&id=aaaaa&orderNum=2019&charset=utf-8 这种格式的

@gotonull 就是想请问下 一般接受 urlEncode 参数时，后台代码 有没有可以单独接受每个参数的写法

request.getParameterMap()返回了所有参数拼接的一个字符串

已领，谢谢楼主

@serical 想问下是不是因为第一个线程改变了元 table 里 entry 里之间的只向，才导致死循环吗

@312ybj 2.0.8

@GM 额 你说的有道理，这些数据库操作和连接第三方 api 都是在一个 @Transactional 内，访问 api 前就有数据库的一些操作，之后的操作应该也是在这个连接上操作...

Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

The last packet successfully received from the server was 87,000 milliseconds ago. The last packet sent successfully to the server was 0 milliseconds ago.
at sun.reflect.GeneratedConstructorAccessor236.newInstance(Unknown Source) ~[na:na]
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:1.8.0_211]
at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[na:1.8.0_211]
at com.mysql.jdbc.Util.handleNewInstance(Util.java:425) ~[mysql-connector-java-5.1.47.jar!/:5.1.47]
at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:990) ~[mysql-connector-java-5.1.47.jar!/:5.1.47]
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3562) ~[mysql-connector-java-5.1.47.jar!/:5.1.47]
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3462) ~[mysql-connector-java-5.1.47.jar!/:5.1.47]
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3905) ~[mysql-connector-java-5.1.47.jar!/:5.1.47]
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2530) ~[mysql-connector-java-5.1.47.jar!/:5.1.47]
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2683) ~[mysql-connector-java-5.1.47.jar!/:5.1.47]
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2495) ~[mysql-connector-java-5.1.47.jar!/:5.1.47]
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1903) ~[mysql-connector-java-5.1.47.jar!/:5.1.47]
at com.mysql.jdbc.PreparedStatement.execute(PreparedStatement.java:1242) ~[mysql-connector-java-5.1.47.jar!/:5.1.47]
at com.alibaba.druid.filter.FilterChainImpl.preparedStatement_execute(FilterChainImpl.java:3409) ~[druid-1.1.14.jar!/:1.1.14]
at com.alibaba.druid.filter.FilterEventAdapter.preparedStatement_execute(FilterEventAdapter.java:440) ~[druid-1.1.14.jar!/:1.1.14]
at com.alibaba.druid.filter.FilterChainImpl.preparedStatement_execute(FilterChainImpl.java:3407) ~[druid-1.1.14.jar!/:1.1.14]
at com.alibaba.druid.proxy.jdbc.PreparedStatementProxyImpl.execute(PreparedStatementProxyImpl.java:167) ~[druid-1.1.14.jar!/:1.1.14]
at com.alibaba.druid.pool.DruidPooledPreparedStatement.execute(DruidPooledPreparedStatement.java:497) ~[druid-1.1.14.jar!/:1.1.14]
at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:64) ~[mybatis-3.5.1.jar!/:3.5.1]
at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:79) ~[mybatis-3.5.1.jar!/:3.5.1]
at sun.reflect.GeneratedMethodAccessor121.invoke(Unknown Source) ~[na:na]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_211]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_211]
at org.apache.ibatis.plugin.Plugin.invoke(Plugin.java:63) ~[mybatis-3.5.1.jar!/:3.5.1]
at com.sun.proxy.$Proxy228.query(Unknown Source) ~[na:na]
at com.baomidou.mybatisplus.core.executor.MybatisSimpleExecutor.doQuery(MybatisSimpleExecutor.java:67) ~[mybatis-plus-core-3.1.1.jar!/:3.1.1]
at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:324) ~[mybatis-3.5.1.jar!/:3.5.1]
at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:156) ~[mybatis-3.5.1.jar!/:3.5.1]
at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:109) ~[mybatis-3.5.1.jar!/:3.5.1]
at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:83) ~[mybatis-3.5.1.jar!/:3.5.1]
at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:147) ~[mybatis-3.5.1.jar!/:3.5.1]
at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:140) ~[mybatis-3.5.1.jar!/:3.5.1]
at sun.reflect.GeneratedMethodAccessor110.invoke(Unknown Source) ~[na:na]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_211]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_211]
at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:433) ~[mybatis-spring-2.0.1.jar!/:2.0.1]
at com.sun.proxy.$Proxy87.selectList(Unknown Source) ~[na:na]
at org.mybatis.spring.SqlSessionTemplate.selectList(SqlSessionTemplate.java:230) ~[mybatis-spring-2.0.1.jar!/:2.0.1]
at com.baomidou.mybatisplus.core.override.MybatisMapperMethod.executeForMany(MybatisMapperMethod.java:158) ~[mybatis-plus-core-3.1.1.jar!/:3.1.1]
at com.baomidou.mybatisplus.core.override.MybatisMapperMethod.execute(MybatisMapperMethod.java:76) ~[mybatis-plus-core-3.1.1.jar!/:3.1.1]
at com.baomidou.mybatisplus.core.override.MybatisMapperProxy.invoke(MybatisMapperProxy.java:62) ~[mybatis-plus-core-3.1.1.jar!/:3.1.1]
at com.sun.proxy.$Proxy121.selectList(Unknown Source) ~[na:na]
at com.baomidou.mybatisplus.extension.service.impl.ServiceImpl.list(ServiceImpl.java:276) ~[mybatis-plus-extension-3.1.1.jar!/:3.1.1]
at com.baomidou.mybatisplus.extension.service.IService.list(IService.java:247) ~[mybatis-plus-extension-3.1.1.jar!/:3.1.1]
at com.baomidou.mybatisplus.extension.service.IService$$FastClassBySpringCGLIB$$f8525d18.invoke(<generated>) ~[mybatis-plus-extension-3.1.1.jar!/:3.1.1]
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204) ~[spring-core-5.0.12.RELEASE.jar!/:5.0.12.RELEASE]
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:684) ~[spring-aop-5.0.12.RELEASE.jar!/:5.0.12.RELEASE]
... 17 common frames omitted
Caused by: java.io.EOFException: Can not read response from server. Expected to read 4 bytes, read 0 bytes before connection was unexpectedly lost.
at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:3014) ~[mysql-connector-java-5.1.47.jar!/:5.1.47]
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3472) ~[mysql-connector-java-5.1.47.jar!/:5.1.47]
... 60 common frames omitted

### Error querying database. Cause: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

The last packet successfully received from the server was 87,000 milliseconds ago. The last packet sent successfully to the server was 0 milliseconds ago.
### The error may exist in */mapper/***Mapper.java (best guess)
### The error may involve defaultParameterMap
### The error occurred while setting parameters
### SQL: SELECT id,code,type,create_dt FROM table
### Cause: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

The last packet successfully received from the server was 87,000 milliseconds ago. The last packet sent successfully to the server was 0 milliseconds ago.
; Communications link failure

The last packet successfully received from the server was 87,000 milliseconds ago. The last packet sent successfully to the server was 0 milliseconds ago.; nested exception is com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

The last packet successfully received from the server was 87,000 milliseconds ago. The last packet sent successfully to the server was 0 milliseconds ago.
2020-06-17 09:48:09.249 ERROR 1037 --- [chedule-pool-10] c.c.rosebeautyapp.common.util.Threads :
### Error updating database. Cause: java.sql.SQLException: connection disabled
### The error may exist in */mapper/***Mapper.java (best guess)
### The error may involve **Mapper.updateById
### The error occurred while executing an update
### SQL: UPDATE table SET user_id=?,mobile=?, create_dt=?, update_dt=?, uptime=?, upload=?, up_load=?, status=?, order_id=? WHERE id=?
### Cause: java.sql.SQLException: connection disabled
; uncategorized SQLException; SQL state [null]; error code [0]; connection disabled; nested exception is java.sql.SQLException: connection disabled

org.springframework.jdbc.UncategorizedSQLException:
### Error updating database. Cause: java.sql.SQLException: connection disabled
### The error may exist in ****Mapper.java (best guess)
### The error may involve ****Mapper.updateById
### The error occurred while executing an update
### SQL: UPDATE table SET user_id=?,mobile=?, create_dt=?, update_dt=?, uptime=?, upload=?, up_load=?, status=?, order_id=? WHERE id=?
### Cause: java.sql.SQLException: connection disabled
; uncategorized SQLException; SQL state [null]; error code [0]; connection disabled; nested exception is java.sql.SQLException: connection disabled
at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:89) ~[spring-jdbc-5.0.12.RELEASE.jar!/:5.0.12.RELEASE]
at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:81) ~[spring-jdbc-5.0.12.RELEASE.jar!/:5.0.12.RELEASE]
at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:81) ~[spring-jdbc-5.0.12.RELEASE.jar!/:5.0.12.RELEASE]
at org.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:73) ~[mybatis-spring-2.0.1.jar!/:2.0.1]
at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:446) ~[mybatis-spring-2.0.1.jar!/:2.0.1]
at com.sun.proxy.$Proxy87.update(Unknown Source) ~[na:na]
at org.mybatis.spring.SqlSessionTemplate.update(SqlSessionTemplate.java:294) ~[mybatis-spring-2.0.1.jar!/:2.0.1]
at com.baomidou.mybatisplus.core.override.MybatisMapperMethod.execute(MybatisMapperMethod.java:63) ~[mybatis-plus-core-3.1.1.jar!/:3.1.1]
at com.baomidou.mybatisplus.core.override.MybatisMapperProxy.invoke(MybatisMapperProxy.java:62) ~[mybatis-plus-core-3.1.1.jar!/:3.1.1]
at com.sun.proxy.$Proxy104.updateById(Unknown Source) ~[na:na]
at com.baomidou.mybatisplus.extension.service.impl.ServiceImpl.updateById(ServiceImpl.java:212) ~[mybatis-plus-extension-3.1.1.jar!/:3.1.1]
at com.baomidou.mybatisplus.extension.service.impl.ServiceImpl$$FastClassBySpringCGLIB$$76535273.invoke(<generated>) ~[mybatis-plus-extension-3.1.1.jar!/:3.1.1]
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204) ~[spring-core-5.0.12.RELEASE.jar!/:5.0.12.RELEASE]
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:684) ~[spring-aop-5.0.12.RELEASE.jar!/:5.0.12.RELEASE]
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204) ~[spring-core-5.0.12.RELEASE.jar!/:5.0.12.RELEASE]
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:746) ~[spring-aop-5.0.12.RELEASE.jar!/:5.0.12.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) ~[spring-aop-5.0.12.RELEASE.jar!/:5.0.12.RELEASE]
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:294) ~[spring-tx-5.0.12.RELEASE.jar!/:5.0.12.RELEASE]
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:98) ~[spring-tx-5.0.12.RELEASE.jar!/:5.0.12.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185) ~[spring-aop-5.0.12.RELEASE.jar!/:5.0.12.RELEASE]
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:688) ~[spring-aop-5.0.12.RELEASE.jar!/:5.0.12.RELEASE]
at ************************ServiceImpl$$EnhancerBySpringCGLIB$$3b23cf0a.recordSheet(<generated>) ~[**-manage-service-1.0-SNAPSHOT.jar!/:1.0-SNAPSHOT]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[na:1.8.0_211]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[na:1.8.0_211]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180) ~[na:1.8.0_211]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) ~[na:1.8.0_211]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[na:1.8.0_211]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_211]
at java.lang.Thread.run(Thread.java:748) [na:1.8.0_211]
Caused by: java.sql.SQLException: connection disabled

2020-06-17 08:24:09.193 ERROR 1037 --- [schedule-pool-4] c.a.druid.pool.DruidPooledStatement : CommunicationsException, druid version 1.1.14, jdbcUrl : jdbc:mysql://db?useunicode=true&characterEncoding=utf8, testWhileIdle true, idle millis 93785, minIdle 10, poolingCount 1, timeBetweenEvictionRunsMillis 60000, lastValidIdleMillis 93785, driver com.mysql.jdbc.Driver, exceptionSorter com.alibaba.druid.pool.vendor.MySqlExceptionSorter
2020-06-17 08:24:09.195 ERROR 1037 --- [schedule-pool-4] com.alibaba.druid.pool.DruidDataSource : discard connection

com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

The last packet successfully received from the server was 90,348 milliseconds ago. The last packet sent successfully to the server was 0 milliseconds ago.
at sun.reflect.GeneratedConstructorAccessor236.newInstance(Unknown Source) ~[na:na]
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:1.8.0_211]
at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[na:1.8.0_211]
at com.mysql.jdbc.Util.handleNewInstance(Util.java:425) ~[mysql-connector-java-5.1.47.jar!/:5.1.47]
at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:990) ~[mysql-connector-java-5.1.47.jar!/:5.1.47]
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3562) ~[mysql-connector-java-5.1.47.jar!/:5.1.47]
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3462) ~[mysql-connector-java-5.1.47.jar!/:5.1.47]
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3905) ~[mysql-connector-java-5.1.47.jar!/:5.1.47]
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2530) ~[mysql-connector-java-5.1.47.jar!/:5.1.47]
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2683) ~[mysql-connector-java-5.1.47.jar!/:5.1.47]
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2495) ~[mysql-connector-java-5.1.47.jar!/:5.1.47]
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1903) ~[mysql-connector-java-5.1.47.jar!/:5.1.47]
at com.mysql.jdbc.PreparedStatement.execute(PreparedStatement.java:1242) ~[mysql-connector-java-5.1.47.jar!/:5.1.47]
at com.alibaba.druid.filter.FilterChainImpl.preparedStatement_execute(FilterChainImpl.java:3409) ~[druid-1.1.14.jar!/:1.1.14]
at com.alibaba.druid.filter.FilterEventAdapter.preparedStatement_execute(FilterEventAdapter.java:440) ~[druid-1.1.14.jar!/:1.1.14]
at com.alibaba.druid.filter.FilterChainImpl.preparedStatement_execute(FilterChainImpl.java:3407) ~[druid-1.1.14.jar!/:1.1.14]
at com.alibaba.druid.proxy.jdbc.PreparedStatementProxyImpl.execute(PreparedStatementProxyImpl.java:167) ~[druid-1.1.14.jar!/:1.1.14]
at com.alibaba.druid.pool.DruidPooledPreparedStatement.execute(DruidPooledPreparedStatement.java:497) ~[druid-1.1.14.jar!/:1.1.14]
at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:64) [mybatis-3.5.1.jar!/:3.5.1]
at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:79) [mybatis-3.5.1.jar!/:3.5.1]
at sun.reflect.GeneratedMethodAccessor121.invoke(Unknown Source) ~[na:na]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_211]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_211]
at org.apache.ibatis.plugin.Plugin.invoke(Plugin.java:63) [mybatis-3.5.1.jar!/:3.5.1]
at com.sun.proxy.$Proxy228.query(Unknown Source) [na:na]
at com.baomidou.mybatisplus.core.executor.MybatisSimpleExecutor.doQuery(MybatisSimpleExecutor.java:67) [mybatis-plus-core-3.1.1.jar!/:3.1.1]
at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:324) [mybatis-3.5.1.jar!/:3.5.1]
at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:156) [mybatis-3.5.1.jar!/:3.5.1]
at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:109) [mybatis-3.5.1.jar!/:3.5.1]
at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:83) [mybatis-3.5.1.jar!/:3.5.1]
at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:147) [mybatis-3.5.1.jar!/:3.5.1]
at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:140) [mybatis-3.5.1.jar!/:3.5.1]
at sun.reflect.GeneratedMethodAccessor110.invoke(Unknown Source) ~[na:na]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_211]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_211]
at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:433) [mybatis-spring-2.0.1.jar!/:2.0.1]
at com.sun.proxy.$Proxy87.selectList(Unknown Source) [na:na]
at org.mybatis.spring.SqlSessionTemplate.selectList(SqlSessionTemplate.java:230) [mybatis-spring-2.0.1.jar!/:2.0.1]
at com.baomidou.mybatisplus.core.override.MybatisMapperMethod.executeForMany(MybatisMapperMethod.java:158) [mybatis-plus-core-3.1.1.jar!/:3.1.1]
at com.baomidou.mybatisplus.core.override.MybatisMapperMethod.execute(MybatisMapperMethod.java:76) [mybatis-plus-core-3.1.1.jar!/:3.1.1]
at com.baomidou.mybatisplus.core.override.MybatisMapperProxy.invoke(MybatisMapperProxy.java:62) [mybatis-plus-core-3.1.1.jar!/:3.1.1]
at com.sun.proxy.$Proxy121.selectList(Unknown Source) [na:na]
at com.baomidou.mybatisplus.extension.service.impl.ServiceImpl.list(ServiceImpl.java:276) [mybatis-plus-extension-3.1.1.jar!/:3.1.1]
at com.baomidou.mybatisplus.extension.service.IService.list(IService.java:247) [mybatis-plus-extension-3.1.1.jar!/:3.1.1]
at com.baomidou.mybatisplus.extension.service.IService$$FastClassBySpringCGLIB$$f8525d18.invoke(<generated>) [mybatis-plus-extension-3.1.1.jar!/:3.1.1]
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204) [spring-core-5.0.12.RELEASE.jar!/:5.0.12.RELEASE]
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:684) [spring-aop-5.0.12.RELEASE.jar!/:5.0.12.RELEASE]
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204) [spring-core-5.0.12.RELEASE.jar!/:5.0.12.RELEASE]
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:746) [spring-aop-5.0.12.RELEASE.jar!/:5.0.12.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) [spring-aop-5.0.12.RELEASE.jar!/:5.0.12.RELEASE]
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:294) ~[spring-tx-5.0.12.RELEASE.jar!/:5.0.12.RELEASE]
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:98) ~[spring-tx-5.0.12.RELEASE.jar!/:5.0.12.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185) [spring-aop-5.0.12.RELEASE.jar!/:5.0.12.RELEASE]
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:688) [spring-aop-5.0.12.RELEASE.jar!/:5.0.12.RELEASE]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[na:1.8.0_211]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[na:1.8.0_211]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180) ~[na:1.8.0_211]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) ~[na:1.8.0_211]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[na:1.8.0_211]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ~[na:1.8.0_211]
at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_211]
Caused by: java.io.EOFException: Can not read response from server. Expected to read 4 bytes, read 0 bytes before connection was unexpectedly lost.
at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:3014) ~[mysql-connector-java-5.1.47.jar!/:5.1.47]
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3472) ~[mysql-connector-java-5.1.47.jar!/:5.1.47]
... 60 common frames omitted

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