Spring jdbcTemplate - 连接已关闭
Spring jdbcTemplate - Connection is Closed
我的 Jersey REST 应用程序有一个长期的 运行 问题，该应用程序利用 Spring jdbcTemplate 来制作基本的 SELECT、INSERT、UPDATE 和 DELETE 查询到我们的数据库（我们使用 DB2）。
这个问题每隔几天就会发生一次，所以我没有 System.out 错误内容（下次发生时我会附上错误的屏幕截图）。每隔几天左右，我的 REST 服务中的一些查询就会因 "Connection is Closed." 错误而开始失败。每当我收到此错误时，我只需重新启动 tomcat 应用程序服务器，问题就会在几天内得到解决，直到它再次发生。
一旦我们的最终用户开始使用它，每隔几天重新启动服务器将不是一个可以接受的解决方案。因此，如果有人知道为什么会发生这种情况以及我如何才能永久解决该问题，请告诉我。
这是我的 Spring 数据源配置：
package com.my.package;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.boot.autoconfigure.jdbc.DataSourceBuilder;
import javax.sql.DataSource;
@Configuration
public class DataSourceConfig {
@Bean (name = "dataSource1")
@Primary
@ConfigurationProperties(prefix = "ds1.datasource")
public DataSource dataSource1() {
return DataSourceBuilder.create().build();
}
@Bean(name = "ds1")
public JdbcTemplate jdbcTemplate1(@Qualifier("dataSource1") DataSource dataSource1) {
return new JdbcTemplate(dataSource1);
}
@Bean (name = "dataSource2")
@ConfigurationProperties(prefix="ds2.datasource")
public DataSource dataSource2() { return DataSourceBuilder.create().build(); }
@Bean(name = "ds2")
public JdbcTemplate jdbcTemplate2(@Qualifier("dataSource2") DataSource dataSource2) {
return new JdbcTemplate(dataSource2);
}
}
这是我的 application.properties:
ds1.datasource.url=url1
ds1.datasource.username=user1
ds1.datasource.password=pass1
ds1.datasource.driver-class-name=com.ibm.db2.jcc.DB2Driver
ds2.datasource.url=url2
ds2.datasource.username=user2
ds2.datasource.password=pass2
ds2.datasource.driver-class-name=com.ibm.db2.jcc.DB2Driver
我的 pom.xml 其中包括 spring jdbc 和驱动程序依赖项
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<dependency>
<groupId>ibm.db2</groupId>
<artifactId>db2jcc4.jar</artifactId>
<version>4.19.26</version>
</dependency>
最后，我使用 jdbcTemplate
执行简单 SELECT 查询的示例
@Autowired
@Qualifier("ds1")
private JdbcTemplate jdbcTemplate;
List<Something> sampleQuery(){
String sqlQuery = "SELECT * FROM TABLE";
try {
return this.jdbcTemplate.query(
sqlQuery,
(rs, rowNum) -> {
Something something = new Something();
something.setVal1(rs.getString("FIELD1").trim());
something.setVal2(rs.getString("FIELD2").trim());
return something;
});
}catch (Exception ex){
ex.printStackTrace();
System.out.println("error...");
return new ArrayList<>();
}
}
编辑： 错误仍在发生。这次我能够捕获日志。它基本上只是说 "Failed to validate a newly established connection." 我不知道为什么。
org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is java.sql.SQLException: Failed to validate a newly established connection.
at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:80)
at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:615)
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:680)
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:712)
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:722)
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:772)
at org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory.invoke(ResourceMethodInvocationHandlerFactory.java:81)
at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.run(AbstractJavaResourceMethodDispatcher.java:144)
at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:161)
at org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$TypeOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:205)
at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:99)
at org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:389)
at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:347)
at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:102)
at org.glassfish.jersey.server.ServerRuntime.run(ServerRuntime.java:326)
at org.glassfish.jersey.internal.Errors.call(Errors.java:271)
at org.glassfish.jersey.internal.Errors.call(Errors.java:267)
at org.glassfish.jersey.internal.Errors.process(Errors.java:315)
at org.glassfish.jersey.internal.Errors.process(Errors.java:297)
at org.glassfish.jersey.internal.Errors.process(Errors.java:267)
at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:317)
at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:305)
at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:1154)
at org.glassfish.jersey.servlet.WebComponent.serviceImpl(WebComponent.java:473)
at org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:427)
at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:388)
at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:341)
at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:228)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.springframework.boot.actuate.autoconfigure.EndpointWebMvcAutoConfiguration$ApplicationContextHeaderFilter.doFilterInternal(EndpointWebMvcAutoConfiguration.java:261)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.springframework.boot.actuate.trace.WebRequestTraceFilter.doFilterInternal(WebRequestTraceFilter.java:115)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:87)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:77)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:121)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.springframework.boot.actuate.autoconfigure.MetricsFilter.doFilterInternal(MetricsFilter.java:103)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:522)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1095)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:672)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1502)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1458)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.sql.SQLException: Failed to validate a newly established connection.
at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:811)
at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:626)
at org.apache.tomcat.jdbc.pool.ConnectionPool.getConnection(ConnectionPool.java:185)
at org.apache.tomcat.jdbc.pool.DataSourceProxy.getConnection(DataSourceProxy.java:127)
at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:111)
at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:77)
... 81 more
EDIT#2: 最后将@exoddus 的答案标记为正确答案。在阅读了他的回答并查看了他提供的 Spring JDBC 文档之后（这让我找到了底层的 tomcat JDBC 连接池文档），我开始玩了很多不同的属性，直到它起作用。
这是我在生产环境中使用的当前配置：
ds1.datasource.url=jdbc:db2://database.domain.com:12345/DBMS
ds1.datasource.username=admin
ds1.datasource.password=admin
ds1.datasource.driver-class-name=com.ibm.db2.jcc.DB2Driver
ds1.datasource.max-active=200
ds1.datasource.max-idle=200
ds1.datasource.max-wait=20000
ds1.datasource.min-idle=50
ds1.datasource.test-while-idle=true
ds1.datasource.test-on-borrow=true
ds1.datasource.validation-query=SELECT 1 FROM SYSIBM.SYSDUMMY1
ds1.datasource.time-between-eviction-runs-millis=30000
ds1.datasource.remove-abandoned=true
ds1.datasource.remove-abandoned-timeout=30
ds1.datasource.abandon-when-percentage-full=50
ds1.datasource.initial-size=50
ds1.datasource.jdbcInterceptors=ResetAbandonedTimer
对 ds2 重复。自从我大约 6 个月前实施以来，此配置一直运行良好。
根据您的上下文，我会尝试配置 DataSource bean 的一些参数。也许几天后您会断开连接，因为其中一些从未发布或完成（我只是猜测）。
尝试将该属性添加到您的 application.properties:
ds1.datasource.max-active=50
ds1.datasource.max-idle=8
ds1.datasource.max-wait=10000
ds1.datasource.min-idle=4
ds1.datasource.test-on-borrow=true
与 ds2
相同
正确的值取决于您的 environtment/hardware。查看 here 以获得有关数据源和池的简洁明了的解释。
Here 您可以在 spring 上找到另一个关于 DataSource 的有趣问题，可能会对您有所帮助。
我的 Jersey REST 应用程序有一个长期的 运行 问题，该应用程序利用 Spring jdbcTemplate 来制作基本的 SELECT、INSERT、UPDATE 和 DELETE 查询到我们的数据库（我们使用 DB2）。
这个问题每隔几天就会发生一次，所以我没有 System.out 错误内容（下次发生时我会附上错误的屏幕截图）。每隔几天左右，我的 REST 服务中的一些查询就会因 "Connection is Closed." 错误而开始失败。每当我收到此错误时，我只需重新启动 tomcat 应用程序服务器，问题就会在几天内得到解决，直到它再次发生。
一旦我们的最终用户开始使用它，每隔几天重新启动服务器将不是一个可以接受的解决方案。因此，如果有人知道为什么会发生这种情况以及我如何才能永久解决该问题，请告诉我。
这是我的 Spring 数据源配置：
package com.my.package;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.boot.autoconfigure.jdbc.DataSourceBuilder;
import javax.sql.DataSource;
@Configuration
public class DataSourceConfig {
@Bean (name = "dataSource1")
@Primary
@ConfigurationProperties(prefix = "ds1.datasource")
public DataSource dataSource1() {
return DataSourceBuilder.create().build();
}
@Bean(name = "ds1")
public JdbcTemplate jdbcTemplate1(@Qualifier("dataSource1") DataSource dataSource1) {
return new JdbcTemplate(dataSource1);
}
@Bean (name = "dataSource2")
@ConfigurationProperties(prefix="ds2.datasource")
public DataSource dataSource2() { return DataSourceBuilder.create().build(); }
@Bean(name = "ds2")
public JdbcTemplate jdbcTemplate2(@Qualifier("dataSource2") DataSource dataSource2) {
return new JdbcTemplate(dataSource2);
}
}
这是我的 application.properties:
ds1.datasource.url=url1
ds1.datasource.username=user1
ds1.datasource.password=pass1
ds1.datasource.driver-class-name=com.ibm.db2.jcc.DB2Driver
ds2.datasource.url=url2
ds2.datasource.username=user2
ds2.datasource.password=pass2
ds2.datasource.driver-class-name=com.ibm.db2.jcc.DB2Driver
我的 pom.xml 其中包括 spring jdbc 和驱动程序依赖项
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<dependency>
<groupId>ibm.db2</groupId>
<artifactId>db2jcc4.jar</artifactId>
<version>4.19.26</version>
</dependency>
最后，我使用 jdbcTemplate
执行简单SELECT 查询的示例
@Autowired
@Qualifier("ds1")
private JdbcTemplate jdbcTemplate;
List<Something> sampleQuery(){
String sqlQuery = "SELECT * FROM TABLE";
try {
return this.jdbcTemplate.query(
sqlQuery,
(rs, rowNum) -> {
Something something = new Something();
something.setVal1(rs.getString("FIELD1").trim());
something.setVal2(rs.getString("FIELD2").trim());
return something;
});
}catch (Exception ex){
ex.printStackTrace();
System.out.println("error...");
return new ArrayList<>();
}
}
编辑： 错误仍在发生。这次我能够捕获日志。它基本上只是说 "Failed to validate a newly established connection." 我不知道为什么。
org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is java.sql.SQLException: Failed to validate a newly established connection.
at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:80)
at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:615)
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:680)
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:712)
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:722)
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:772)
at org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory.invoke(ResourceMethodInvocationHandlerFactory.java:81)
at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.run(AbstractJavaResourceMethodDispatcher.java:144)
at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:161)
at org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$TypeOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:205)
at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:99)
at org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:389)
at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:347)
at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:102)
at org.glassfish.jersey.server.ServerRuntime.run(ServerRuntime.java:326)
at org.glassfish.jersey.internal.Errors.call(Errors.java:271)
at org.glassfish.jersey.internal.Errors.call(Errors.java:267)
at org.glassfish.jersey.internal.Errors.process(Errors.java:315)
at org.glassfish.jersey.internal.Errors.process(Errors.java:297)
at org.glassfish.jersey.internal.Errors.process(Errors.java:267)
at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:317)
at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:305)
at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:1154)
at org.glassfish.jersey.servlet.WebComponent.serviceImpl(WebComponent.java:473)
at org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:427)
at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:388)
at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:341)
at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:228)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.springframework.boot.actuate.autoconfigure.EndpointWebMvcAutoConfiguration$ApplicationContextHeaderFilter.doFilterInternal(EndpointWebMvcAutoConfiguration.java:261)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.springframework.boot.actuate.trace.WebRequestTraceFilter.doFilterInternal(WebRequestTraceFilter.java:115)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:87)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:77)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:121)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.springframework.boot.actuate.autoconfigure.MetricsFilter.doFilterInternal(MetricsFilter.java:103)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:522)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1095)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:672)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1502)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1458)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.sql.SQLException: Failed to validate a newly established connection.
at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:811)
at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:626)
at org.apache.tomcat.jdbc.pool.ConnectionPool.getConnection(ConnectionPool.java:185)
at org.apache.tomcat.jdbc.pool.DataSourceProxy.getConnection(DataSourceProxy.java:127)
at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:111)
at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:77)
... 81 more
EDIT#2: 最后将@exoddus 的答案标记为正确答案。在阅读了他的回答并查看了他提供的 Spring JDBC 文档之后（这让我找到了底层的 tomcat JDBC 连接池文档），我开始玩了很多不同的属性，直到它起作用。
这是我在生产环境中使用的当前配置：
ds1.datasource.url=jdbc:db2://database.domain.com:12345/DBMS
ds1.datasource.username=admin
ds1.datasource.password=admin
ds1.datasource.driver-class-name=com.ibm.db2.jcc.DB2Driver
ds1.datasource.max-active=200
ds1.datasource.max-idle=200
ds1.datasource.max-wait=20000
ds1.datasource.min-idle=50
ds1.datasource.test-while-idle=true
ds1.datasource.test-on-borrow=true
ds1.datasource.validation-query=SELECT 1 FROM SYSIBM.SYSDUMMY1
ds1.datasource.time-between-eviction-runs-millis=30000
ds1.datasource.remove-abandoned=true
ds1.datasource.remove-abandoned-timeout=30
ds1.datasource.abandon-when-percentage-full=50
ds1.datasource.initial-size=50
ds1.datasource.jdbcInterceptors=ResetAbandonedTimer
对 ds2 重复。自从我大约 6 个月前实施以来，此配置一直运行良好。
根据您的上下文，我会尝试配置 DataSource bean 的一些参数。也许几天后您会断开连接，因为其中一些从未发布或完成（我只是猜测）。
尝试将该属性添加到您的 application.properties:
ds1.datasource.max-active=50
ds1.datasource.max-idle=8
ds1.datasource.max-wait=10000
ds1.datasource.min-idle=4
ds1.datasource.test-on-borrow=true
与 ds2
正确的值取决于您的 environtment/hardware。查看 here 以获得有关数据源和池的简洁明了的解释。
Here 您可以在 spring 上找到另一个关于 DataSource 的有趣问题，可能会对您有所帮助。