ssh 事务不能回滚 Could not roll back Hibernate transaction; nested exception is

时间：2025-03-23 10:45:26

调试没问题，发布到服务器上一段时间报以下异常

: Could not roll back Hibernate transaction; nested exception is : JDBC rollback failed
.(:677)

问题原因：mysql 数据库将hibernate 连接给关闭了，

解决1：

hibernate配置数据源

proxool数据源

在src目录下添加文件与 同目录

<?xml version="1.0" encoding="UTF-8"?>
<!-- the proxool configuration can be embedded within your own application's.
Anything outside the "proxool" tag is ignored. -->
<something-else-entirely>
  <proxool>
   <alias>DBPool</alias>
    <driver-url>jdbc:mysql://localhost:3306/house</driver-url>
    <driver-class></driver-class>
    <driver-properties>
      <property name="user" value="root"/>
      <property name="password" value="admin"/>
    </driver-properties>
    <maximum-connection-count>10</maximum-connection-count>
    <house-keeping-test-sql>select CURRENT_DATE</house-keeping-test-sql> 
    </proxool>
</something-else-entirely>
hiberante配置  

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"/hibernate-configuration-3.">
<hibernate-configuration>
	<session-factory>
		<property name=".provider_class"></property>
		<property name=".pool_alias">DBPool</property>
		<property name=""></property>
		<property name="show_sql">true</property>
		<!--不删除原数据-->
		<property name="">update</property>

		<mapping resource="com/Allean/bean2/" />
		<mapping resource="com/Allean/bean2/" />
	</session-factory>
</hibernate-configuration>

c3p0数据源

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"/hibernate-configuration-3.">
<hibernate-configuration>
	<session-factory>
		
		 <property name=".provider_class">.C3P0ConnectionProvider</property> 
			<property name="hibernate.c3p0.max_size">20</property>
			<property name="hibernate.c3p0.min_size">5</property> 
			<property name="hibernate.">120</property> 
			<property name="hibernate.c3p0.max_statements">100</property> 
			<property name="hibernate.c3p0.idle_test_period">120</property> 
			<property name="hibernate.c3p0.acquire_increment">2</property> 
			<property name="connection.driver_class"></property> 
			<property name="">admin</property> 
			<property name="">jdbc:mysql://********2</property> 
			<property name="">admin</property>
			<property name="">admin</property>
			<property name="">jdbc:mysql://localhost:3306/house</property> 
			<property name="">root</property>
			<property name="current_session_context_class">thread</property>
			<property name="">.MySQL5Dialect</property> 
			<property name="hibernate.">update</property> 


		<mapping resource="com/Allean/bean2/" />
		<mapping resource="com/Allean/bean2/" />
	</session-factory>
</hibernate-configuration>

二、修入mysql 文件 找到这个位置

# SERVER SECTION
# ----------------------------------------------------------------------
#
# The following options will be read by the MySQL Server. Make sure that
# you have installed the server correctly (see above) so it reads this 
# file.
#
[mysqld]
wait_timeout=1814400 
# The TCP/IP Port the MySQL Server will listen on
port=3306

主要是修秘诀wait-timeout  单位是秒 设的值表示21天

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