我看到这个问题也是在其他时间提出的，但我无法解决问题。
我想连接到我的计算机上本地数据库中存在的mysql，该计算机具有Windows 7，使用Eclipse Java EE IDE for Web Developers并安装了Apache Tomcat 7.0.70，但是当我运行我的代码崩溃时出现错误：
HTTP Status 500 - javax.servlet.ServletException: javax.naming.NameNotFoundException: Name [jdbc/ldata] is not bound in this Context. Unable to find [jdbc].
type Exception report
message javax.servlet.ServletException: javax.naming.NameNotFoundException: Name [jdbc/data] is not bound in this Context. Unable to find [jdbc].
description The server encountered an internal error that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: javax.servlet.ServletException: javax.naming.NameNotFoundException: Name [jdbc/data] is not bound in this Context. Unable to find [jdbc].
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:556)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:462)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339)
javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
root cause
javax.servlet.ServletException: javax.naming.NameNotFoundException: Name [jdbc/ldata] is not bound in this Context. Unable to find [jdbc].
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:916)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:845)
org.apache.jsp.index_jsp._jspService(index_jsp.java:151)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:439)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339)
javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
root cause
javax.naming.NameNotFoundException: Name [jdbc/ldata] is not bound in this Context. Unable to find [jdbc].
org.apache.naming.NamingContext.lookup(NamingContext.java:819)
org.apache.naming.NamingContext.lookup(NamingContext.java:167)
org.apache.naming.factory.ResourceLinkFactory.getObjectInstance(ResourceLinkFactory.java:97)
javax.naming.spi.NamingManager.getObjectInstance(Unknown Source)
org.apache.naming.NamingContext.lookup(NamingContext.java:842)
org.apache.naming.NamingContext.lookup(NamingContext.java:153)
org.apache.naming.NamingContext.lookup(NamingContext.java:830)
org.apache.naming.NamingContext.lookup(NamingContext.java:153)
org.apache.naming.NamingContext.lookup(NamingContext.java:830)
org.apache.naming.NamingContext.lookup(NamingContext.java:153)
org.apache.naming.NamingContext.lookup(NamingContext.java:830)
org.apache.naming.NamingContext.lookup(NamingContext.java:167)
org.apache.naming.SelectorContext.lookup(SelectorContext.java:156)
javax.naming.InitialContext.lookup(Unknown Source)
confDataSource.ConnectToDatabase.getConnection(ConnectToDatabase.java:18)
org.apache.jsp.index_jsp._jspService(index_jsp.java:98)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:439)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339)
javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
note The full stack trace of the root cause is available in the Apache Tomcat/7.0.70 logs.
Apache Tomcat/7.0.70
日志
lug 06, 2016 3:40:31 PM org.apache.tomcat.util.digester.SetPropertiesRule begin
AVVERTENZA: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:HelloWorld' did not find a matching property.
lug 06, 2016 3:40:31 PM org.apache.tomcat.util.digester.SetPropertiesRule begin
AVVERTENZA: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:ReadGet' did not find a matching property.
lug 06, 2016 3:40:31 PM org.apache.tomcat.util.digester.SetPropertiesRule begin
AVVERTENZA: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:ReadPost' did not find a matching property.
lug 06, 2016 3:40:31 PM org.apache.tomcat.util.digester.SetPropertiesRule begin
AVVERTENZA: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:Redirect' did not find a matching property.
lug 06, 2016 3:40:31 PM org.apache.tomcat.util.digester.SetPropertiesRule begin
AVVERTENZA: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:JSP' did not find a matching property.
lug 06, 2016 3:40:31 PM org.apache.tomcat.util.digester.SetPropertiesRule begin
AVVERTENZA: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:JSPRedirect' did not find a matching property.
lug 06, 2016 3:40:31 PM org.apache.tomcat.util.digester.SetPropertiesRule begin
AVVERTENZA: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:JSPInUnFile' did not find a matching property.
lug 06, 2016 3:40:31 PM org.apache.tomcat.util.digester.SetPropertiesRule begin
AVVERTENZA: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:Include' did not find a matching property.
lug 06, 2016 3:40:31 PM org.apache.tomcat.util.digester.SetPropertiesRule begin
AVVERTENZA: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:For' did not find a matching property.
lug 06, 2016 3:40:31 PM org.apache.tomcat.util.digester.SetPropertiesRule begin
AVVERTENZA: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:forward' did not find a matching property.
lug 06, 2016 3:40:31 PM org.apache.tomcat.util.digester.SetPropertiesRule begin
AVVERTENZA: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:UseBean' did not find a matching property.
lug 06, 2016 3:40:31 PM org.apache.tomcat.util.digester.SetPropertiesRule begin
AVVERTENZA: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:JDBC' did not find a matching property.
lug 06, 2016 3:40:31 PM org.apache.tomcat.util.digester.SetPropertiesRule begin
AVVERTENZA: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:DataSourceObject' did not find a matching property.
lug 06, 2016 3:40:31 PM org.apache.tomcat.util.digester.SetPropertiesRule begin
AVVERTENZA: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:RetrievingAndModifying' did not find a matching property.
lug 06, 2016 3:40:31 PM org.apache.tomcat.util.digester.SetPropertiesRule begin
AVVERTENZA: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:PreparedStatement' did not find a matching property.
lug 06, 2016 3:40:31 PM org.apache.tomcat.util.digester.SetPropertiesRule begin
AVVERTENZA: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:confDataSource' did not find a matching property.
lug 06, 2016 3:40:31 PM org.apache.tomcat.util.digester.SetPropertiesRule begin
AVVERTENZA: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:confDataSource2' did not find a matching property.
lug 06, 2016 3:40:31 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMAZIONI: Server version: Apache Tomcat/7.0.70
lug 06, 2016 3:40:31 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMAZIONI: Server built: Jun 15 2016 16:27:45 UTC
lug 06, 2016 3:40:31 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMAZIONI: Server number: 7.0.70.0
lug 06, 2016 3:40:31 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMAZIONI: OS Name: Windows 7
lug 06, 2016 3:40:31 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMAZIONI: OS Version: 6.1
lug 06, 2016 3:40:31 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMAZIONI: Architecture: amd64
lug 06, 2016 3:40:31 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMAZIONI: Java Home: B:\Program Files\Java\jre7
lug 06, 2016 3:40:31 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMAZIONI: JVM Version: 1.7.0_80-b15
lug 06, 2016 3:40:31 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMAZIONI: JVM Vendor: Oracle Corporation
lug 06, 2016 3:40:31 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMAZIONI: CATALINA_BASE: B:\Users\Danilo\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp0
lug 06, 2016 3:40:31 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMAZIONI: CATALINA_HOME: B:\Program Files\Apache Software Foundation\Tomcat 7.0
lug 06, 2016 3:40:31 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMAZIONI: Command line argument: -Dcatalina.base=B:\Users\Danilo\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp0
lug 06, 2016 3:40:31 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMAZIONI: Command line argument: -Dcatalina.home=B:\Program Files\Apache Software Foundation\Tomcat 7.0
lug 06, 2016 3:40:32 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMAZIONI: Command line argument: -Dwtp.deploy=B:\Users\Danilo\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps
lug 06, 2016 3:40:32 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMAZIONI: Command line argument: -Djava.endorsed.dirs=B:\Program Files\Apache Software Foundation\Tomcat 7.0\endorsed
lug 06, 2016 3:40:32 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMAZIONI: Command line argument: -Dfile.encoding=Cp1252
lug 06, 2016 3:40:32 PM org.apache.catalina.core.AprLifecycleListener lifecycleEvent
INFORMAZIONI: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: B:\Program Files\Java\jre7\bin;B:\Windows\Sun\Java\bin;B:\Windows\system32;B:\Windows;C:\app\Danilo\product\11.2.0\dbhome_1\bin;B:\Windows\system32;B:\Windows;B:\Windows\System32\Wbem;B:\Windows\System32\WindowsPowerShell\v1.0\;B:\Program Files (x86)\Intel\OpenCL SDK\2.0\bin\x86;B:\Program Files (x86)\Intel\OpenCL SDK\2.0\bin\x64;C:\Programmi\Anaconda;C:\Programmi\Anaconda\Scripts;B:\Program Files (x86)\Skype\Phone\;B:\Program Files\Java\jdk1.7.0_79\bin;.
lug 06, 2016 3:40:32 PM org.apache.coyote.AbstractProtocol init
INFORMAZIONI: Initializing ProtocolHandler ["http-bio-8080"]
lug 06, 2016 3:40:32 PM org.apache.coyote.AbstractProtocol init
INFORMAZIONI: Initializing ProtocolHandler ["ajp-bio-8009"]
lug 06, 2016 3:40:32 PM org.apache.catalina.startup.Catalina load
INFORMAZIONI: Initialization processed in 1140 ms
lug 06, 2016 3:40:32 PM org.apache.catalina.core.StandardService startInternal
INFORMAZIONI: Starting service Catalina
lug 06, 2016 3:40:32 PM org.apache.catalina.core.StandardEngine startInternal
INFORMAZIONI: Starting Servlet Engine: Apache Tomcat/7.0.70
lug 06, 2016 3:40:33 PM org.apache.catalina.startup.TldConfig execute
INFORMAZIONI: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
lug 06, 2016 3:40:33 PM org.apache.catalina.util.SessionIdGeneratorBase createSecureRandom
INFORMAZIONI: Creation of SecureRandom instance for session ID generation using [SHA1PRNG] took [139] milliseconds.
lug 06, 2016 3:40:33 PM org.apache.catalina.startup.TldConfig execute
INFORMAZIONI: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
lug 06, 2016 3:40:34 PM org.apache.catalina.startup.TldConfig execute
INFORMAZIONI: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
lug 06, 2016 3:40:34 PM org.apache.catalina.startup.TldConfig execute
INFORMAZIONI: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
lug 06, 2016 3:40:34 PM org.apache.catalina.startup.TldConfig execute
INFORMAZIONI: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
lug 06, 2016 3:40:34 PM org.apache.catalina.startup.TldConfig execute
INFORMAZIONI: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
lug 06, 2016 3:40:35 PM org.apache.catalina.startup.TldConfig execute
INFORMAZIONI: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
lug 06, 2016 3:40:35 PM org.apache.catalina.startup.TldConfig execute
INFORMAZIONI: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
lug 06, 2016 3:40:35 PM org.apache.catalina.startup.TldConfig execute
INFORMAZIONI: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
lug 06, 2016 3:40:35 PM org.apache.catalina.startup.TldConfig execute
INFORMAZIONI: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
lug 06, 2016 3:40:36 PM org.apache.catalina.startup.TldConfig execute
INFORMAZIONI: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
lug 06, 2016 3:40:36 PM org.apache.catalina.startup.TldConfig execute
INFORMAZIONI: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
lug 06, 2016 3:40:36 PM org.apache.catalina.startup.TldConfig execute
INFORMAZIONI: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
lug 06, 2016 3:40:36 PM org.apache.catalina.startup.TldConfig execute
INFORMAZIONI: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
lug 06, 2016 3:40:37 PM org.apache.catalina.startup.TldConfig execute
INFORMAZIONI: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
lug 06, 2016 3:40:37 PM org.apache.catalina.startup.TldConfig execute
INFORMAZIONI: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
lug 06, 2016 3:40:37 PM org.apache.catalina.startup.TldConfig execute
INFORMAZIONI: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
lug 06, 2016 3:40:37 PM org.apache.catalina.startup.TldConfig execute
INFORMAZIONI: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
lug 06, 2016 3:40:37 PM org.apache.coyote.AbstractProtocol start
INFORMAZIONI: Starting ProtocolHandler ["http-bio-8080"]
lug 06, 2016 3:40:37 PM org.apache.coyote.AbstractProtocol start
INFORMAZIONI: Starting ProtocolHandler ["ajp-bio-8009"]
lug 06, 2016 3:40:37 PM org.apache.catalina.startup.Catalina start
INFORMAZIONI: Server startup in 5546 ms
lug 06, 2016 3:40:39 PM org.apache.catalina.core.StandardWrapperValve invoke
GRAVE: Servlet.service() for servlet [jsp] in context with path [/confDataSource] threw exception [javax.servlet.ServletException: javax.naming.NameNotFoundException: Name [jdbc/data] is not bound in this Context. Unable to find [jdbc].] with root cause
javax.naming.NameNotFoundException: Name [jdbc/data] is not bound in this Context. Unable to find [jdbc].
at org.apache.naming.NamingContext.lookup(NamingContext.java:819)
at org.apache.naming.NamingContext.lookup(NamingContext.java:167)
at org.apache.naming.factory.ResourceLinkFactory.getObjectInstance(ResourceLinkFactory.java:97)
at javax.naming.spi.NamingManager.getObjectInstance(Unknown Source)
at org.apache.naming.NamingContext.lookup(NamingContext.java:842)
at org.apache.naming.NamingContext.lookup(NamingContext.java:153)
at org.apache.naming.NamingContext.lookup(NamingContext.java:830)
at org.apache.naming.NamingContext.lookup(NamingContext.java:153)
at org.apache.naming.NamingContext.lookup(NamingContext.java:830)
at org.apache.naming.NamingContext.lookup(NamingContext.java:153)
at org.apache.naming.NamingContext.lookup(NamingContext.java:830)
at org.apache.naming.NamingContext.lookup(NamingContext.java:167)
at org.apache.naming.SelectorContext.lookup(SelectorContext.java:156)
at javax.naming.InitialContext.lookup(Unknown Source)
at confDataSource.ConnectToDatabase.getConnection(ConnectToDatabase.java:18)
at org.apache.jsp.index_jsp._jspService(index_jsp.java:98)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:439)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:218)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:956)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:442)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1082)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:623)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Unknown Source)
的WebContent / META-INF / context.xml中
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE xml>
<Context>
<WatchedResource>WEB-INF/web.xml</WatchedResource>
<ResourceLink global="jdbc/data" name="jdbc/data" type="javax.sql.DataSource" />
</Context>
server.xml（在GlobalNamingResources标记中）
<Resource name="jdbc/data" auth="Container" type="javax.sql.DataSource"
maxActive="15" maxIdle="3" maxWait="10000"
username="root" password="password"
url="jdbc:mysql://localhost:3306/" driverClassName="com.mysql.jdbc.Driver"
/>
的WebContent / WEB-INF / web.xml中
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
<resource-ref>
<description>DB Connection</description>
<res-ref-name>jdbc/data</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
</resource-ref>
<display-name>confDataSource</display-name>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>
confDataSource.ConnectToDatabase.java
package confDataSource;
import java.sql.Connection;
import java.sql.SQLException;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.sql.DataSource;
public class ConnectToDatabase {
private Connection conn;
private Context ctx = null;
public ConnectToDatabase(){}
public Connection getConnection() throws NamingException, SQLException{
ctx = new InitialContext();
DataSource ds = (DataSource) ctx.lookup("java:/comp/env/jdbc/data");
conn = ds.getConnection();
return conn;
}
public boolean closeConnection(Connection conn) throws SQLException {
if (conn != null) {
conn.close();
return true;
}
return false;
}
}
感谢任何想要帮助我的人
答案 0 :(得分：0)
在server.xml中尝试此操作
<Resource name="jdbc/data" auth="Container" type="javax.sql.DataSource"
maxActive="15" maxIdle="3" maxWait="10000"
username="root" password="password"
url="jdbc:mysql://localhost:3306/data" driverClassName="com.mysql.jdbc.Driver"
/>
我在上面的代码中更改了url，其中data是您的数据库名称。