Comment puis-je connecter avec succès à un serveur DB2 Dockerized DB à partir d'une application en cours d'exécution sur un serveur Tomee dockerized - les deux conteneurs en utilisant jdk10?
Ce que j'avais essayé de le faire jusqu'à présent ....
Dans db2jcc4.jar tombé "/ usr / local / tomee / lib" dossier ...
...obtenu à partir de:
https://www-01.ibm.com/support/docview.wss?uid=swg21385217
FWIW, le démarrage initial du serveur tomcat se plaint qu'il n'a pas pu trouver pdq.jar ...:
05-Sep-2018 16:48:04.901 INFO [localhost-startStop-1] org.apache.openejb.assembler.classic.Assembler.createApplication Deployed Application(path=C:\tools\apache-tomee-plume-7.0.5\webapps\docs)
05-Sep-2018 16:48:04.956 WARNING [localhost-startStop-1] org.apache.tomcat.util.scan.StandardJarScanner.processURLs Failed to scan [file:/C:/tools/apache-tomee-plume-7.0.5/lib/pdq.jar] from classloader hierarchy
java.io.IOException: java.lang.reflect.InvocationTargetException
at org.apache.tomcat.util.compat.Jre9Compat.jarFileNewInstance(Jre9Compat.java:212)
at org.apache.tomcat.util.scan.JarFileUrlJar.<init>(JarFileUrlJar.java:65)
at org.apache.tomcat.util.scan.JarFactory.newInstance(JarFactory.java:49)
at org.apache.tomcat.util.scan.StandardJarScanner.process(StandardJarScanner.java:374)
at org.apache.tomcat.util.scan.StandardJarScanner.processURLs(StandardJarScanner.java:309)
at org.apache.tomcat.util.scan.StandardJarScanner.doScanClassPath(StandardJarScanner.java:266)
at org.apache.tomcat.util.scan.StandardJarScanner.scan(StandardJarScanner.java:229)
at org.apache.tomee.loader.TomEEJarScanner.scan(TomEEJarScanner.java:69)
at org.apache.catalina.startup.ContextConfig.processJarsForWebFragments(ContextConfig.java:1888)
at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1116)
at org.apache.catalina.startup.OpenEJBContextConfig.webConfig(OpenEJBContextConfig.java:411)
at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:765)
at org.apache.catalina.startup.OpenEJBContextConfig.configureStart(OpenEJBContextConfig.java:124)
at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:299)
at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:94)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5154)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:754)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:730)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:734)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1140)
at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1875)
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:514)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1135)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
at java.base/java.lang.Thread.run(Thread.java:844)
Caused by: java.lang.reflect.InvocationTargetException
at java.base/jdk.internal.reflect.GeneratedConstructorAccessor10.newInstance(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:488)
at org.apache.tomcat.util.compat.Jre9Compat.jarFileNewInstance(Jre9Compat.java:209)
... 26 more
Caused by: java.nio.file.NoSuchFileException: C:\tools\apache-tomee-plume-7.0.5\lib\pdq.jar
at java.base/sun.nio.fs.WindowsException.translateToIOException(WindowsException.java:85)
at java.base/sun.nio.fs.WindowsException.rethrowAsIOException(WindowsException.java:103)
at java.base/sun.nio.fs.WindowsException.rethrowAsIOException(WindowsException.java:108)
at java.base/sun.nio.fs.WindowsFileAttributeViews$Basic.readAttributes(WindowsFileAttributeViews.java:53)
at java.base/sun.nio.fs.WindowsFileAttributeViews$Basic.readAttributes(WindowsFileAttributeViews.java:38)
at java.base/sun.nio.fs.WindowsFileSystemProvider.readAttributes(WindowsFileSystemProvider.java:194)
at java.base/java.nio.file.Files.readAttributes(Files.java:1755)
at java.base/java.util.zip.ZipFile$Source.get(ZipFile.java:1220)
at java.base/java.util.zip.ZipFile$CleanableResource.<init>(ZipFile.java:727)
at java.base/java.util.zip.ZipFile$CleanableResource.get(ZipFile.java:845)
at java.base/java.util.zip.ZipFile.<init>(ZipFile.java:245)
at java.base/java.util.zip.ZipFile.<init>(ZipFile.java:175)
at java.base/java.util.jar.JarFile.<init>(JarFile.java:341)
... 30 more
... alors j'ai enlevé pdq.jar du classpath manifeste du pot et le tomee / tomcat serveur démarrais propre par la suite.
Je déployé une application simple REST - contenant une méthode GET - qui utilise un simple appel à jdbc d'extraire des données de la base de données IBM « SAMPLE » (qui est livré avec db2express-c)
L'application ressemble à ceci ...
package aaa.bbb.ccc.war;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayDeque;
import java.util.ArrayList;
import java.util.Deque;
import java.util.List;
import javax.annotation.Resource;
import javax.ejb.Stateless;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.persistence.TypedQuery;
import javax.persistence.criteria.CriteriaBuilder;
import javax.persistence.criteria.CriteriaQuery;
import javax.persistence.criteria.Predicate;
import javax.persistence.criteria.Root;
import javax.sql.DataSource;
import javax.ws.rs.Consumes;
import javax.ws.rs.GET;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.UriInfo;
import aaa.bbb.ccc.generated.EmployeeList;
import aaa.bbb.ccc.generated.EmployeeType;
import aaa.bbb.ccc.generated.ObjectFactory;
@Stateless
@Path("/employeeList")
public class MyRestSvc {
@Context
UriInfo uriInfo;
public MyRestSvc() {
}
@Resource(name = "jdbc/sample", type = javax.sql.DataSource.class)
private DataSource sampleDb;
@GET
@Path("{empno}")
@Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
public EmployeeList get(@Context javax.servlet.http.HttpServletRequest request, @PathParam("empno") String empno) {
String empNo = null;
Connection con = null;
Statement stmt = null;
ResultSet rs = null;
try {
con = sampleDb.getConnection();
con.setAutoCommit(false);
// Create the Statement
stmt = con.createStatement();
System.out.println("**** Created JDBC Statement object");
// Execute a query and generate a ResultSet instance
rs = stmt.executeQuery("SELECT EMPNO FROM EMPLOYEE");
System.out.println("**** Created JDBC ResultSet object");
// Print all of the employee numbers to standard output device
while (rs.next()) {
empNo = rs.getString(1);
System.out.println("Employee number = " + empNo);
}
System.out.println("**** Fetched all rows from JDBC ResultSet");
// Close the ResultSet
rs.close();
System.out.println("**** Closed JDBC ResultSet");
// Close the Statement
stmt.close();
System.out.println("**** Closed JDBC Statement");
// Connection must be on a unit-of-work boundary to allow close
con.commit();
System.out.println("**** Transaction committed");
// Close the connection
con.close();
} catch (SQLException e) {
e.printStackTrace();
} finally {
if (con != null) {
System.out.println("Connected successfully.");
try {
con.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
}
return new EmployeeList();
}
}
J'ai couru une commande de boucle de test pour effectuer une opération GET ... à savoir,
curl -k -v -L -H "Content-Type: application/xml" -X GET http://localhost:8888/MyRestSvc/employeeList/000190
et a reçu cette exception ...
"Exception java.net.ConnectException: Prise d'ouverture d'erreur au serveur localhost / 127.0.0.1 sur le port 50 000 avec un message: Connexion refusée (Connexion refusée) ERRORCODE = -4499, SQLSTATE = 08001".
c'est à dire,
-
-
-
10-Sep-2018 21:04:15.767 INFO [main] org.apache.openejb.assembler.classic.Assembler.createRecipe Creating Resource(id=jdbc/sample)
10-Sep-2018 21:04:16.173 SEVERE [main] org.apache.tomcat.jdbc.pool.ConnectionPool.init Unable to create initial connections of pool.
com.ibm.db2.jcc.am.DisconnectNonTransientConnectionException: [jcc][t4][2043][11550][4.21.29] Exception java.net.ConnectException: Error opening socket to server localhost/127.0.0.1 on port 50,000 with message: Connection refused (Connection refused). ERRORCODE=-4499, SQLSTATE=08001
at com.ibm.db2.jcc.am.kd.a(kd.java:338)
at com.ibm.db2.jcc.am.kd.a(kd.java:435)
at com.ibm.db2.jcc.t4.ac.a(ac.java:440)
at com.ibm.db2.jcc.t4.ac.<init>(ac.java:96)
at com.ibm.db2.jcc.t4.a.b(a.java:366)
at com.ibm.db2.jcc.t4.b.newAgent_(b.java:2076)
at com.ibm.db2.jcc.am.Connection.initConnection(Connection.java:812)
at com.ibm.db2.jcc.am.Connection.<init>(Connection.java:754)
at com.ibm.db2.jcc.t4.b.<init>(b.java:339)
at com.ibm.db2.jcc.DB2SimpleDataSource.getConnection(DB2SimpleDataSource.java:233)
at com.ibm.db2.jcc.DB2SimpleDataSource.getConnection(DB2SimpleDataSource.java:199)
at com.ibm.db2.jcc.DB2Driver.connect(DB2Driver.java:482)
at com.ibm.db2.jcc.DB2Driver.connect(DB2Driver.java:116)
at org.apache.tomcat.jdbc.pool.PooledConnection.connectUsingDriver(PooledConnection.java:319)
at org.apache.tomcat.jdbc.pool.PooledConnection.connect(PooledConnection.java:212)
at org.apache.tomcat.jdbc.pool.ConnectionPool.createConnection(ConnectionPool.java:736)
at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:668)
at org.apache.tomcat.jdbc.pool.ConnectionPool.init(ConnectionPool.java:483)
at org.apache.tomcat.jdbc.pool.ConnectionPool.<init>(ConnectionPool.java:154)
at org.apache.tomee.jdbc.TomEEDataSourceCreator$TomEEConnectionPool.<init>(TomEEDataSourceCreator.java:221)
at org.apache.tomee.jdbc.TomEEDataSourceCreator$TomEEDataSource.createPool(TomEEDataSourceCreator.java:154)
at org.apache.tomee.jdbc.TomEEDataSourceCreator$TomEEDataSource.<init>(TomEEDataSourceCreator.java:131)
at org.apache.tomee.jdbc.TomEEDataSourceCreator.pool(TomEEDataSourceCreator.java:68)
at org.apache.openejb.resource.jdbc.pool.PoolDataSourceCreator.poolManaged(PoolDataSourceCreator.java:80)
at org.apache.openejb.resource.jdbc.DataSourceFactory.create(DataSourceFactory.java:213)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at org.apache.xbean.recipe.ReflectionUtil$StaticFactory.create(ReflectionUtil.java:999)
at org.apache.xbean.recipe.ObjectRecipe.internalCreate(ObjectRecipe.java:276)
at org.apache.xbean.recipe.AbstractRecipe.create(AbstractRecipe.java:96)
at org.apache.xbean.recipe.AbstractRecipe.create(AbstractRecipe.java:61)
at org.apache.openejb.assembler.classic.Assembler.doCreateResource(Assembler.java:3131)
at org.apache.openejb.assembler.classic.Assembler.createResource(Assembler.java:2964)
at org.apache.openejb.assembler.classic.Assembler.buildContainerSystem(Assembler.java:586)
at org.apache.openejb.assembler.classic.Assembler.build(Assembler.java:487)
at org.apache.openejb.OpenEJB$Instance.<init>(OpenEJB.java:150)
at org.apache.openejb.OpenEJB.init(OpenEJB.java:307)
at org.apache.tomee.catalina.TomcatLoader.initialize(TomcatLoader.java:247)
at org.apache.tomee.catalina.ServerListener.lifecycleEvent(ServerListener.java:168)
at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:94)
at org.apache.catalina.util.LifecycleBase.setStateInternal(LifecycleBase.java:395)
at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:108)
at org.apache.catalina.startup.Catalina.load(Catalina.java:632)
at org.apache.catalina.startup.Catalina.load(Catalina.java:655)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at org.apache.catalina.startup.Bootstrap.load(Bootstrap.java:309)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:492)
Caused by: java.net.ConnectException: Connection refused (Connection refused)
at java.base/java.net.PlainSocketImpl.socketConnect(Native Method)
at java.base/java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:400)
at java.base/java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:243)
at java.base/java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:225)
at java.base/java.net.SocksSocketImpl.connect(SocksSocketImpl.java:402)
at java.base/java.net.Socket.connect(Socket.java:591)
at com.ibm.db2.jcc.t4.w.run(w.java:49)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at com.ibm.db2.jcc.t4.ac.a(ac.java:426)
... 49 more
10-Sep-2018 21:04:16.192 SEVERE [main] org.apache.tomee.jdbc.TomEEDataSourceCreator$TomEEDataSource.<init> Can't create DataSource
com.ibm.db2.jcc.am.DisconnectNonTransientConnectionException: [jcc][t4][2043][11550][4.21.29] Exception java.net.ConnectException: Error opening socket to server localhost/127.0.0.1 on port 50,000 with message: Connection refused (Connection refused). ERRORCODE=-4499, SQLSTATE=08001
at com.ibm.db2.jcc.am.kd.a(kd.java:338)
at com.ibm.db2.jcc.am.kd.a(kd.java:435)
at com.ibm.db2.jcc.t4.ac.a(ac.java:440)
at com.ibm.db2.jcc.t4.ac.<init>(ac.java:96)
at com.ibm.db2.jcc.t4.a.b(a.java:366)
at com.ibm.db2.jcc.t4.b.newAgent_(b.java:2076)
at com.ibm.db2.jcc.am.Connection.initConnection(Connection.java:812)
at com.ibm.db2.jcc.am.Connection.<init>(Connection.java:754)
at com.ibm.db2.jcc.t4.b.<init>(b.java:339)
at com.ibm.db2.jcc.DB2SimpleDataSource.getConnection(DB2SimpleDataSource.java:233)
at com.ibm.db2.jcc.DB2SimpleDataSource.getConnection(DB2SimpleDataSource.java:199)
at com.ibm.db2.jcc.DB2Driver.connect(DB2Driver.java:482)
at com.ibm.db2.jcc.DB2Driver.connect(DB2Driver.java:116)
at org.apache.tomcat.jdbc.pool.PooledConnection.connectUsingDriver(PooledConnection.java:319)
at org.apache.tomcat.jdbc.pool.PooledConnection.connect(PooledConnection.java:212)
at org.apache.tomcat.jdbc.pool.ConnectionPool.createConnection(ConnectionPool.java:736)
at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:668)
at org.apache.tomcat.jdbc.pool.ConnectionPool.init(ConnectionPool.java:483)
at org.apache.tomcat.jdbc.pool.ConnectionPool.<init>(ConnectionPool.java:154)
at org.apache.tomee.jdbc.TomEEDataSourceCreator$TomEEConnectionPool.<init>(TomEEDataSourceCreator.java:221)
at org.apache.tomee.jdbc.TomEEDataSourceCreator$TomEEDataSource.createPool(TomEEDataSourceCreator.java:154)
at org.apache.tomee.jdbc.TomEEDataSourceCreator$TomEEDataSource.<init>(TomEEDataSourceCreator.java:131)
at org.apache.tomee.jdbc.TomEEDataSourceCreator.pool(TomEEDataSourceCreator.java:68)
at org.apache.openejb.resource.jdbc.pool.PoolDataSourceCreator.poolManaged(PoolDataSourceCreator.java:80)
at org.apache.openejb.resource.jdbc.DataSourceFactory.create(DataSourceFactory.java:213)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at org.apache.xbean.recipe.ReflectionUtil$StaticFactory.create(ReflectionUtil.java:999)
at org.apache.xbean.recipe.ObjectRecipe.internalCreate(ObjectRecipe.java:276)
at org.apache.xbean.recipe.AbstractRecipe.create(AbstractRecipe.java:96)
at org.apache.xbean.recipe.AbstractRecipe.create(AbstractRecipe.java:61)
at org.apache.openejb.assembler.classic.Assembler.doCreateResource(Assembler.java:3131)
at org.apache.openejb.assembler.classic.Assembler.createResource(Assembler.java:2964)
at org.apache.openejb.assembler.classic.Assembler.buildContainerSystem(Assembler.java:586)
at org.apache.openejb.assembler.classic.Assembler.build(Assembler.java:487)
at org.apache.openejb.OpenEJB$Instance.<init>(OpenEJB.java:150)
at org.apache.openejb.OpenEJB.init(OpenEJB.java:307)
at org.apache.tomee.catalina.TomcatLoader.initialize(TomcatLoader.java:247)
at org.apache.tomee.catalina.ServerListener.lifecycleEvent(ServerListener.java:168)
at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:94)
at org.apache.catalina.util.LifecycleBase.setStateInternal(LifecycleBase.java:395)
at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:108)
at org.apache.catalina.startup.Catalina.load(Catalina.java:632)
at org.apache.catalina.startup.Catalina.load(Catalina.java:655)
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:564)
at org.apache.catalina.startup.Bootstrap.load(Bootstrap.java:309)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:492)
Caused by: java.net.ConnectException: Connection refused (Connection refused)
at java.base/java.net.PlainSocketImpl.socketConnect(Native Method)
at java.base/java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:400)
at java.base/java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:243)
at java.base/java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:225)
at java.base/java.net.SocksSocketImpl.connect(SocksSocketImpl.java:402)
at java.base/java.net.Socket.connect(Socket.java:591)
at com.ibm.db2.jcc.t4.w.run(w.java:49)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at com.ibm.db2.jcc.t4.ac.a(ac.java:426)
... 49 more
-
-
-
La recherche, a trouvé ce lien ...:
http://www-01.ibm.com/support/docview.wss?uid=swg21287078
... cependant, la « solution » semble supposer que le serveur de tomee et le serveur db2 étaient sur la même machine (?) ...
En outre, FWIW ...
Voici le tomee / tomcat server.xml ...
<?xml version="1.0" encoding="UTF-8"?>
<Server port="8005" shutdown="SHUTDOWN">
<!-- TomEE plugin for Tomcat -->
<Listener className="org.apache.tomee.catalina.ServerListener" />
<Listener className="org.apache.catalina.startup.VersionLoggerListener" />
<!--APR library loader. Documentation at /docs/apr.html -->
<Listener className="org.apache.catalina.core.AprLifecycleListener" SSLEngine="on" />
<!-- Prevent memory leaks due to use of particular java/javax APIs-->
<Listener className="org.apache.catalina.core.JreMemoryLeakPreventionListener" />
<Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener" />
<Listener className="org.apache.catalina.core.ThreadLocalLeakPreventionListener" />
<GlobalNamingResources>
<Resource name="UserDatabase" auth="Container"
type="org.apache.catalina.UserDatabase"
description="User database that can be updated and saved"
factory="org.apache.catalina.users.MemoryUserDatabaseFactory"
pathname="conf/tomcat-users.xml" />
</GlobalNamingResources>
<Service name="Catalina">
<Connector port="8084" protocol="HTTP/1.1" connectionTimeout="20000" redirectPort="8443" xpoweredBy="false" server="Apache TomEE" />
<Connector port="8009" protocol="AJP/1.3" redirectPort="8443" />
<Engine name="Catalina" defaultHost="localhost">
<Realm className="org.apache.catalina.realm.LockOutRealm">
<Realm className="org.apache.catalina.realm.UserDatabaseRealm" resourceName="UserDatabase"/>
</Realm>
<Host name="localhost" appBase="webapps" unpackWARs="true" autoDeploy="true">
<Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs" prefix="localhost_access_log" suffix=".txt" pattern="%h %l %u %t "%r" %s %b" />
</Host>
</Engine>
</Service>
</Server>
Voici le tomee / tomcat tomee.xml ...
<?xml version="1.0" encoding="UTF-8"?>
<tomee>
<Resource id="jdbc/sample" type="javax.sql.DataSource">
driverClassName = com.ibm.db2.jcc.DB2Driver
jdbcDriverType = 4
url = jdbc:db2://localhost:50000/SAMPLE
username = DB2INST1
password = mydb2-pwd
</Resource>
</tomee>
Dockerfile pour générer le conteneur docker apache-tomee-plume-7.0.5 ...
FROM openjdk:10-jre
ENV PATH /usr/local/tomee/bin:$PATH
RUN mkdir -p /usr/local/tomee
WORKDIR /usr/local/tomee
# curl -fsSL 'https://www.apache.org/dist/tomee/KEYS' | awk -F ' = ' '$1 ~ /^ +Key fingerprint$/ { gsub(" ", "", $2); print $2 }' | sort -u
ENV GPG_KEYS \
223D3A74B068ECA354DC385CE126833F9CF64915 \
678F2D98F1FD9643811639FB622B8F2D043F71D8 \
7A2744A8A9AAF063C23EB7868EBE7DBE8D050EEF \
82D8419BA697F0E7FB85916EE91287822FDB81B1 \
9056B710F1E332780DE7AF34CBAEBE39A46C4CA1 \
A57DAF81C1B69921F4BA8723A8DE0A4DB863A7C1 \
B7574789F5018690043E6DD9C212662E12F3E1DD \
B8B301E6105DF628076BD92C5483E55897ABD9B9 \
BDD0BBEB753192957EFC5F896A62FC8EF17D8FEF \
C23A3F6F595EBD0F960270CC997C8F1A5BE6E4C1 \
D11DF12CC2CA4894BDE638B967C1227A2678363C \
DBCCD103B8B24F86FFAAB025C8BB472CD297D428 \
F067B8140F5DD80E1D3B5D92318242FE9A0B1183 \
FAA603D58B1BA4EDF65896D0ED340E0E6D545F97
RUN set -xe \
&& for key in $GPG_KEYS; do \
gpg --keyserver pgp.mit.edu --keyserver-options http-proxy=proxy.apps.dhs.gov:80 --recv-keys "$key" || \
gpg --keyserver keyserver.pgp.com --keyserver-options http-proxy=proxy.apps.dhs.gov:80 --recv-keys "$key" || \
gpg --keyserver ha.pool.sks-keyservers.net --keyserver-options http-proxy=proxy.apps.dhs.gov:80 --recv-keys "$key" ; \
done
RUN set -x \
&& curl -fSL https://repo.maven.apache.org/maven2/org/apache/tomee/apache-tomee/7.0.5/apache-tomee-7.0.5-plume.tar.gz.asc --proxy proxy.apps.dhs.gov:80 -o tomee.tar.gz.asc \
&& curl -fSL https://repo.maven.apache.org/maven2/org/apache/tomee/apache-tomee/7.0.5/apache-tomee-7.0.5-plume.tar.gz --proxy proxy.apps.dhs.gov:80 -o tomee.tar.gz \
&& gpg --batch --verify tomee.tar.gz.asc tomee.tar.gz \
&& tar -zxf tomee.tar.gz \
&& mv apache-tomee-plume-7.0.5/* /usr/local/tomee \
&& rm -Rf apache-tomee-plume-7.0.5 \
&& rm bin/*.bat \
&& rm tomee.tar.gz*
EXPOSE 8084
CMD ["catalina.sh", "run"]
Dockerized DB2 à partir de:
https://hub.docker.com/r/ibmcom/db2express-c/
démarrage tomee:
root@5f9812df3398:/usr/local/tomee/bin# sh startup.sh
./catalina.sh: 165: ./catalina.sh: /docker-java-home=/docker-java-home: not found
Using CATALINA_BASE: /usr/local/tomee
Using CATALINA_HOME: /usr/local/tomee
Using CATALINA_TMPDIR: /usr/local/tomee/temp
Using JRE_HOME: /docker-java-home
Using CLASSPATH: /usr/local/tomee/bin/bootstrap.jar:/usr/local/tomee/bin/tomcat-juli.jar
Tomcat started.
Environnement:
openjdk 10 (en cours d'exécution dans des récipients tomee / db2 docker)
tomee-plume-7.0.5 (dockerized)
db2 11.x (dockerized)
Vous essayez de vous connecter à db avec ip que localhost
du contenant tomcat. Mais en fait le db est récipient séparé. Donc , soit vous devez utiliser alias
la machine db ou le connecter à l' hôte soit en réseau de l' hôte en mode ou en mode pont avec la redirection de port et vous devez utiliser IP statique de la machine hôte pour se connecter comme l' une des suit de tomcat.
jdbc:db2://<host-machine-static-ip>:50000/SAMPLE
jdbc:db2://<docker-container-ip>:50000/SAMPLE
jdbc:db2://<docker-container-alias>:50000/SAMPLE
Permettez-moi de vous expliquer en bref.
Mes hypothèses:
- Tomcat serveurs de serveur et db sont en cours d'exécution en tant que conteneurs différents.
- Les deux sont connectés à différents réseaux de docker.
- Vous avez pas le port transmis au serveur db.
- Vous n'avez pas défini le fichier docker-Compose pour les conteneurs.
- Vous exécutez les conteneurs à l' aide
docker run
.
Si toutes mes hypothèses sont propres alors il y a un problème dans la configuration du réseau docker . Fondamentalement , il existe différentes façons de se connecter d'un conteneur à un autre récipient.
- En ce définissant des alias pour chaque conteneur et se connecter à un même réseau (recommandé) .
- Par transfert de port de l'hôte à conteneur de menu fixe et la connexion à ce port avec IP statique de la machine hôte.
- En exécutant les conteneurs dans le réseau hôte et la connexion au port requis en utilisant l'ip statique de la machine hôte.
- En définissant une adresse IP statique pour conteneur de menu fixe et la connexion des autres récipients en utilisant cette adresse IP.
La méthode recommandée en bref
Vous devez définir l'alias pour le conteneur, Pour cela, vous pouvez utiliser le nom du service ou vous pouvez déclarer alias supplémentaires ainsi. Ensuite, les deux doivent être connectés au même réseau alors que la découverte de services docker fonctionnera. Une fois que tout est fait, vous pouvez connecter d'un conteneur à un autre récipient en utilisant l'alias de l'autre machine.
Les références: