我正在尝试将 15 年前编写的代码迁移到新服务器。
其中一项更改是
javax.*jakarta.*我在让代码正常工作方面取得了进展，但现在当我尝试连接到数据库时遇到了困难。不幸的是，我不太记得如何设置它，而且我不经常进行服务器配置，所以我不了解。这是我所知道的：
我尝试通过以下方式连接到我的数据库：
InitialContext ctx = new InitialContext();
DataSource pool = (DataSource) ctx.lookup("java:comp/env/jdbc/mysql-prod");
然后我尝试与以下对象建立联系：
conn = pool.getConnection();[PROD http-nio-80-exec-8 16/05/2024 14:02:13:205] 16/05/2024 14:02:13:205: Exception caught in doPost on server
java.lang.reflect.InvocationTargetException
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at cusack.hcg.server.AlgoraphServer.doPost(AlgoraphServer.java:220)
at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:590)
at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:658)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:205)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:167)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:90)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:482)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:115)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:93)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:673)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:340)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:391)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:896)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1744)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52)
at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191)
at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.base/java.lang.Thread.run(Thread.java:829)
Caused by: java.sql.SQLException: Cannot create JDBC driver of class '' for connect URL 'null'
at org.apache.tomcat.dbcp.dbcp2.DriverFactory.createDriver(DriverFactory.java:74)
at org.apache.tomcat.dbcp.dbcp2.BasicDataSource.createConnectionFactory(BasicDataSource.java:465)
at org.apache.tomcat.dbcp.dbcp2.BasicDataSource.createDataSource(BasicDataSource.java:529)
at org.apache.tomcat.dbcp.dbcp2.BasicDataSource.getConnection(BasicDataSource.java:710)
at cusack.hcg.server.AlgoraphServer.openConnection(AlgoraphServer.java:320)
at cusack.hcg.server.AlgoraphServer.getProblemFamilies(AlgoraphServer.java:1512)
... 29 more
Caused by: java.sql.SQLException: No suitable driver
at java.sql/java.sql.DriverManager.getDriver(DriverManager.java:298)
at org.apache.tomcat.dbcp.dbcp2.DriverFactory.createDriver(DriverFactory.java:59)
... 34 more
[PROD http-nio-80-exec-8 16/05/2024 14:02:13:207] 05/16/2024 14:02:13 Error on SERVER from request at IP 209.140.240.79: null
[PROD http-nio-80-exec-8 16/05/2024 14:02:13:208] Pool:org.apache.tomcat.dbcp.dbcp2.BasicDataSource@6780cb54
java.sql.SQLException: Cannot create JDBC driver of class '' for connect URL 'null'
at org.apache.tomcat.dbcp.dbcp2.DriverFactory.createDriver(DriverFactory.java:74)
at org.apache.tomcat.dbcp.dbcp2.BasicDataSource.createConnectionFactory(BasicDataSource.java:465)
at org.apache.tomcat.dbcp.dbcp2.BasicDataSource.createDataSource(BasicDataSource.java:529)
at org.apache.tomcat.dbcp.dbcp2.BasicDataSource.getConnection(BasicDataSource.java:710)
at cusack.hcg.server.AlgoraphServer.openConnection(AlgoraphServer.java:320)
at cusack.hcg.server.AlgoraphServer.logStuff(AlgoraphServer.java:3124)
at cusack.hcg.server.AlgoraphServer.logServerError(AlgoraphServer.java:3159)
at cusack.hcg.server.AlgoraphServer.doPost(AlgoraphServer.java:263)
at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:590)
at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:658)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:205)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:167)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:90)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:482)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:115)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:93)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:673)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:340)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:391)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:896)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1744)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52)
at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191)
at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.base/java.lang.Thread.run(Thread.java:829)
Caused by: java.sql.SQLException: No suitable driver
at java.sql/java.sql.DriverManager.getDriver(DriverManager.java:298)
at org.apache.tomcat.dbcp.dbcp2.DriverFactory.createDriver(DriverFactory.java:59)
... 31 more
[PROD http-nio-80-exec-9 16/05/2024 14:02:13:243] Handling request from IP 209.140.240.79
我已经复制了各种配置文件并进行了我认为适当的更改。例如，我在 context.xml 中有以下内容：
<Context>
<!-- Default set of monitored resources. If one of these changes, the -->
<!-- web application will be reloaded. -->
<WatchedResource>WEB-INF/web.xml</WatchedResource>
<WatchedResource>WEB-INF/tomcat-web.xml</WatchedResource>
<WatchedResource>${catalina.base}/conf/web.xml</WatchedResource>
<!-- Uncomment this to enable session persistence across Tomcat restarts -->
<!--
<Manager pathname="SESSIONS.ser" />
-->
<!--Resource name="jdbc/mysql-prod" auth="Container" type="javax.sql.DataSource"
maxActive="100" maxIdle="30" maxWait="10000"
username="fakename" password="fakepassword" driverClassName="com.mysql.cj.jdbc.Driver"
url="jdbc:mysql://localhost:3306/mysql-prod?useSSL=false&serverTimezone=UTC" />-->
</Context>
我不确定我还应该看什么——正如我所说，我对服务器配置的了解远远超出了我的深度，此时日志文件没有为我提供足够的信息来知道还可以看哪里。 有什么想法吗？
@g00se 是正确的——它是配置文件中的注释代码。现在问题出在数据库权限上，这意味着我又近了一步！