在一段时间不活动后调用数据库代码时出现异常

java.sql.SQLNonTransientConnectionException: Could not read resultset: Connection reset
        at org.mariadb.jdbc.internal.SQLExceptionMapper.get(SQLExceptionMapper.java:136)
        at org.mariadb.jdbc.internal.SQLExceptionMapper.throwException(SQLExceptionMapper.java:106)
        at org.mariadb.jdbc.MySQLStatement.executeQueryEpilog(MySQLStatement.java:264)
        at org.mariadb.jdbc.MySQLStatement.execute(MySQLStatement.java:288)
        at org.mariadb.jdbc.MySQLStatement.executeQuery(MySQLStatement.java:302)
        at org.mariadb.jdbc.MySQLStatement.executeQuery(MySQLStatement.java:361)
        at org.apache.commons.dbcp.DelegatingStatement.executeQuery(DelegatingStatement.java:208)
        at org.apache.commons.dbcp.DelegatingStatement.executeQuery(DelegatingStatement.java:208)
        at com.vimba.database.DBFactory.attemptLoginWithTempPasswordDetails(DBFactory.java:181)
        at com.vimba.database.DBFactory.authenticate(DBFactory.java:131)
        at com.vimba.service.ExposedFunctions.login(ExposedFunctions.java:88)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:483)
        at com.sun.xml.ws.api.server.InstanceResolver$1.invoke(InstanceResolver.java:210)
        at com.sun.xml.ws.server.InvokerTube$2.invoke(InvokerTube.java:132)
        at com.sun.xml.ws.server.sei.EndpointMethodHandler.invoke(EndpointMethodHandler.java:241)
        at com.sun.xml.ws.server.sei.SEIInvokerTube.processRequest(SEIInvokerTube.java:74)
        at com.sun.xml.ws.api.pipe.Fiber.__doRun(Fiber.java:559)
        at com.sun.xml.ws.api.pipe.Fiber._doRun(Fiber.java:518)
        at com.sun.xml.ws.api.pipe.Fiber.doRun(Fiber.java:503)
        at com.sun.xml.ws.api.pipe.Fiber.runSync(Fiber.java:400)
        at com.sun.xml.ws.server.WSEndpointImpl$2.process(WSEndpointImpl.java:226)
        at com.sun.xml.ws.transport.http.HttpAdapter$HttpToolkit.handle(HttpAdapter.java:375)
        at com.sun.xml.ws.transport.http.HttpAdapter.handle(HttpAdapter.java:175)
        at com.sun.xml.ws.transport.http.servlet.ServletAdapter.handle(ServletAdapter.java:134)
        at com.sun.xml.ws.transport.http.servlet.WSServletDelegate.doPost(WSServletDelegate.java:159)
        at com.sun.xml.ws.transport.http.servlet.WSServlet.doPost(WSServlet.java:49)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:754)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:295)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:149)
        at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:169)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:145)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:97)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:102)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:336)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856)
        at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:653)
        at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:920)
        at java.lang.Thread.run(Thread.java:745)
Caused by: org.mariadb.jdbc.internal.common.QueryException: Could not read resultset: Connection reset
        at org.mariadb.jdbc.internal.mysql.MySQLProtocol.getResult(MySQLProtocol.java:926)
        at org.mariadb.jdbc.internal.mysql.MySQLProtocol.executeQuery(MySQLProtocol.java:991)
        at org.mariadb.jdbc.MySQLStatement.execute(MySQLStatement.java:281)
        ... 40 more
Caused by: java.net.SocketException: Connection reset

我尝试过更改/etc/my.cnf以添加一个星期的wait_timeout，但没有任何效果;

[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock

# Disabling symbolic-links is recommended to prevent assorted security risks

symbolic-links=0

# Settings user and group are ignored when systemd is used.

# If you need to run mysqld under a different user or group,

# customize your systemd unit file for mysqld/mariadb according to the

# instructions in http://fedoraproject.org/wiki/Systemd

# Currently, there are mariadb and community-mysql packages in Fedora.

# This particular config file is included in respective RPMs of both of them,

# so the following settings are general and will be also used by both of them.

# Otherwise the RPMs would be in conflict.

# Settings for particular implementations like MariaDB are then

# defined in appropriate sections; for MariaDB server in [mariadb] section in

# /etc/my.cnf.d/server.cnf (part of mariadb-server).

# It doesn't matter that we set these settings only for [mysqld] here,

# because they will be read and used in mysqld_safe as well.

log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid

[mysqld_safe]

# 

# include all files from the config directory

# 

!includedir /etc/my.cnf.d

# one week timeout to see if exception goes

wait_timeout=604800

event_scheduler=on
/etc/my.cnf (END)

有人知道如何解决这个问题吗？

3条答案

按热度按时间

jdgnovmf1#

您可以配置DBCP来为您执行连接检查。

validationQuery="/* ping */ SELECT 1"
testOnBorrow="true"

DBCP将在每次从池中获取连接时检查连接是否处于活动状态，并在需要时删除失效连接并创建新连接

赞(0）回复(0）举报 2022-11-08

x6492ojm2#

最后我放弃了，只写了一个方法，每小时ping一次数据库

public static void pingServer(final BasicDataSource source){
    final Thread serverPing = new Thread(new Runnable() {
        @Override
        public void run() {
            Connection conn = null;
            try {
                while(!Thread.currentThread().isInterrupted()){
                    String sql = "/* ping */ SELECT 1";
                    PreparedStatement st = null;
                    conn = source.getConnection();
                    st = conn.prepareStatement(sql);
                    st.executeUpdate(sql);
                    LOGGER.info("Database connection test successful");
                    DatabaseUtilities.closeConnection(conn);
                    TimeUnit.HOURS.sleep(1);
                }
            } catch (SQLException | InterruptedException e) {
                LOGGER.error("Unable to continue pinging database server", e);
                DatabaseUtilities.closeConnection(conn);
            }
            finally{
                DatabaseUtilities.closeConnection(conn);
            }
        }
    });
    serverPing.setDaemon(true);
    serverPing.start();
}

pjngdqdw3#

更改字符串jdbcUrl

**从：**字符串jdbcUrl =“jdbc：mysql：//本地主机：3306/web_客户_跟踪器？使用SSL =假”;
**收件人：**String jdbcUrl =“jdbc：mysql：//本地主机：3306/web_客户_跟踪器？使用SSL =false&允许公钥检索=true”;

对于Maven文件
步骤1）打开文件夹src/main/resources
步骤2）打开persistence-mysql.properties
步骤3）更改jdbc.url
自

jdbc:mysql://localhost:3306/web_customer_tracker?useSSL=false

至

jdbc:mysql://localhost:3306/web_customer_tracker?useSSL=false&allowPublicKeyRetrieval=true

mariadb 如何解决java.sql.SQLNonTransientConnectionException异常：无法读取结果集：是否重置连接？

3条答案

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