Heres how Java is shaping present and future technology, Difference between var, let and const in Nodejs, Different ways to clone or copy an object in NodeJs, Spring Declarative Transaction Management, Spring boot provide embedded tomcat, so here we have created, If we do not like Java configuration for Lookup JNDI data source then spring boot also provides. [Solved] No qualifying bean of type org.springframework.boot.orm.jpa.EntityManagerFactoryBuilder available: Error creating bean with name com.github.pagehelper.autoconfigure.PageHelperAutoConfiguration, Spring Boot Configure DataSource Using JNDI with Example, How does IntelliJ idea use Maven Tomcat plug to run web projects. Before you read this article, I highly recommend to readHow to Deploy Spring Boot Applications on External Tomcat Server. and wont they get added in the application? If you are not familiar with Rest in Spring, please read Spring Restful Webservice Example. Add above configuration in the GlobalNamingResources section of the server.xml file. For my example, I will use MySQL database server and create a simple table with some rows. in development env. For example, the following section in application.properties shows how you can access a JBoss AS defined DataSource: When you run tomcat, the data source should be available under the JNDI name: jdbc/LocalDatabaseName. Now you can import that WAR and verify the changes. 1. Spring Boot 2. Copyright 2022 www.appsloveworld.com. We also need to include jee namespace and schema definition in this case. I have try to approaches : Error log: The JSON response for the Rest call is shown in the below image. I am using Spring Boot 2. Not the answer you're looking for? 1. Spring boot will automatically configure the connection pool by using apache tomcat , HikariCP, or by using common DBCP, we can choose it by using the classpath. Before all these, make sure you have datasource information in your external serversserver.xml this is very very important. Learn about various options for configuring the HikariCP with Spring boot JPA and hibernate. Add a dependency topom.xmlto give support to our Spring Boot application to run on external servers and also add packaging war (I will explain this later ), Extend main class withSpringBootServletInitializerand override itsconfiguremethod, Add a propertyspring.datasource.jndi-nameinapplication.properties, Create new folderwebapp/META-INFunder main and addcontext.xml(will see this later), Generate aWARand deploy into the external Tomcat Server, thats it you are good to go . Also make sure that database driver is present in the tomcat lib directory, so in this case mysql jdbc jar have to be present in the tomcat lib. To facilitate this connection we will use JDBC via a JNDI specification. Tomcat version-7.0.23 This is my pom.xml 4.0.0 com.webappdemo mywebtest war 1.0-SNAPSHOT mywebtest Maven Webapp https://maven.apache.org 4.2.0.RELEASE 4.3.10.Final 5.1.31 org.springframework spring-core ${springframework.version} org.springframework spring-web ${springframework.version} org.springframework spring-webmvc ${springframework.version} org.springframework spring-tx ${springframework.version} org.springframework spring-orm ${springframework.version} org.springframework spring-context ${springframework.version} org.hibernate hibernate-core ${hibernate.version} javax.validation validation-api 1.1.0.Final org.hibernate hibernate-validator 5.1.3.Final mysql mysql-connector-java ${mysql.connector.version} javax.servlet javax.servlet-api 3.1.0 javax.servlet.jsp javax.servlet.jsp-api 2.3.1 javax.servlet jstl 1.2 org.apache.maven.plugins maven-compiler-plugin 3.2 1.7 1.7 org.apache.maven.plugins maven-war-plugin 2.4 src/main/webapp mywebtest false mywebtest Please find below exception Jul 20, 2017 7:42:04 PM org.apache.catalina.core.AprLifecycleListener init INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\Program Files\Java\jdk1.8.0_111\bin;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:/Program Files/Java/jdk1.8.0_111/bin//jre/bin/server;C:/Program Files/Java/jdk1.8.0_111/bin//jre/bin;C:/Program Files/Java/jdk1.8.0_111/bin//jre/lib/amd64;C:\oraclexe\app\oracle\product\11.2.0\server\bin;;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files\Broadcom\Broadcom 802.11\Driver;C:\Program Files (x86)\Common Files\lenovo\easyplussdk\bin;C:\Program Files (x86)\Skype\Phone\;C:\Program Files\Java\jdk1.8.0_111\bin;. ;D:\java softwares\jars&zip\apache-maven-3.2.3\bin;.;;C:\Users\Venky\Desktop\eclipse;;. Feign Client being ignored during component scan. Connect and share knowledge within a single location that is structured and easy to search. Embedded Tomcat by default does not have naming enabled. Export the project as WAR file and place it in the tomcat deployment directory. Important Points about the Controller class are: There are two ways through which we can JNDI lookup and wire it to the Controller DataSource, my spring bean configuration file contains both of them but one of them is commented. We can do this using the spring.datasource.jndi-name property. Do we need to add any dependency to resolve, Spring Boot 2 Embedded Tomcat Jndi Datasource Configuration, Making location easier for developers with new data primitives, Stop requiring only one assertion per unit test: Multiple assertions are fine, Mobile app infrastructure being decommissioned, 2022 Moderator Election Q&A Question Collection. I want to configure embedded Tomcat Server to work with JNDI. Why couldn't I reapply a LPF to remove more noise? In this case what would be the difference in configuring the DB connection information in the application.properties file? Fourier transform of a functional derivative. If you have any suggestions for improvements, please let us know by clicking the report an issue button at the bottom of the tutorial. Thanks. Spring Boot : Steps to Configure JNDI DataSource with External Tomcat Add a dependency to pom.xml to give support to our Spring Boot application to run on external servers and also add packaging war (I will explain this later ) Extend main class with SpringBootServletInitializer and override its configure method It is a sample, deployable Maven 3 project to help you to set up multiple JNDI datasources in Spring Boot. in a tomcat environment, you wouldn't like to use the embedded server. See Servlet Spec 2.3, section 9.7.2. Error creating bean with name 'servletEndpointRegistrar' Different errors hanldilng for @Ccontroller and @RestController in one app, spring boot application deployment on weblogic throws 404 error, SpringMVC Integration SpringBatch transaction have a problem, Spring Boot WebSecurity not ignoring file uploaded from client, Getting multiple users for basic auth, spring boot security, Gzip compression not working in my project with Spring boot 1.5.10.RELEASE, Test a REST Endpoint with AES Encrypted data, JdbcTemplate and stored procedure without params. Continue with Recommended Cookies. Home Services Web Development . Also make sure MySQL jar is present in the tomcat lib directory, otherwise tomcat will not be able to create the MySQL database connection pool. Does a creature have to see to be affected by the Fear spell initially since it is an illusion? DigitalOcean makes it simple to launch in the cloud and scale up as you grow whether youre running one virtual machine or ten thousand. application.properties Why does the sentence uses a question form, but it is put a period in the end? Howto use JNDI database connection with Spring Boot and Spring Data using embedded Tomcat? (ConstantPool.java:60) at org.apache.tomcat.util.bcel.classfile.ClassParser.readConstantPool(ClassParser.java:209) at org.apache.tomcat.util.bcel.classfile.ClassParser.parse(ClassParser.java:119) at org.apache.catalina.startup.ContextConfig.processAnnotationsStream(ContextConfig.java:1949) at org.apache.catalina.startup.ContextConfig.processAnnotationsJar(ContextConfig.java:1840) at org.apache.catalina.startup.ContextConfig.processAnnotationsUrl(ContextConfig.java:1808) at org.apache.catalina.startup.ContextConfig.processAnnotations(ContextConfig.java:1794) at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1214) at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:828) at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:302) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119) at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5148) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) 6 more Jul 20, 2017 7:42:08 PM org.apache.catalina.core.ContainerBase startInternal SEVERE: A child container failed during start java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost]] at java.util.concurrent.FutureTask.report(FutureTask.java:122) at java.util.concurrent.FutureTask.get(FutureTask.java:192) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1100) at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:291) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.StandardService.startInternal(StandardService.java:443) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:727) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.startup.Catalina.start(Catalina.java:624) 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:498) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:322) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:450) Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost]] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1525) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1515) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) Caused by: org.apache.catalina.LifecycleException: A child container failed during start at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1108) at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:782) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) 6 more Jul 20, 2017 7:42:08 PM org.apache.catalina.startup.Catalina start SEVERE: Catalina.start: org.apache.catalina.LifecycleException: Failed to start component [StandardServer[8005]] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154) at org.apache.catalina.startup.Catalina.start(Catalina.java:624) 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:498) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:322) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:450) Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardService[Catalina]] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154) at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:727) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) 7 more Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina]] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154) at org.apache.catalina.core.StandardService.startInternal(StandardService.java:443) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) 9 more Caused by: org.apache.catalina.LifecycleException: A child container failed during start at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1108) at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:291) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) 11 more Jul 20, 2017 7:42:08 PM org.apache.catalina.startup.Catalina start INFO: Server startup in 3491 ms. Separate the Embedded Tomcat Server From the Spring Boot App First of all, open the pom.xml and add the Tomcat dependency. I have try to approaches : Snippet of code : @SpringBootApplication public class MyApplication { public static void main . The JDBC Connection Pool org.apache.tomcat.jdbc.pool is a replacement or an alternative to the Apache Commons DBCP connection pool.So why do we need a new connection pool?Here are a few of the reasons: Commons DBCP 1.x is single threaded.. Access Record Structured FHIR examples Azure API for FHIR is a managed, standards-based, compliant API for clinical health data that enables . , Your donation will help us to improve our content, site maintenance, and community improvement. Configure context To declare a JNDI DataSource for the MySQL database above, create a Resource XML element with the following content: So the production setup differs from the one you use for integration testing or the one on your local devbox. rev2022.11.3.43003. You get paid; we donate to tech nonprofits. Today we will look how we can configure a Spring Web Application to use JNDI connections provided by Tomcat. The pros are not an extensive list, but they are quite significant. Enable Naming. We can also use spring boot datasource connection in connection pooling. "Public domain": Can I sell prints of the James Webb Space Telescope? DataSource will be wired by Spring Bean configuration with name dbDataSource. Very easy with embedded tomcat. Rather just add one more javaclasswhich takes care of datasource and JNDI configuration thats it. Partitioning (in the sense of schemas and users) of databases is often not in the hand of the Java developer. The controller will return the list of Employee which are available in specified data source using JNDI. DevCodeTutorial. 5.1. Working on improving health and education, reducing inequality, and spurring economic growth? Technologies Used Spring Boot Spring Data JPA MySql DB Hibernate Maven Prerequisites Java 1.8 or greater, Spring boot 2.0 or greater, Maven, IntelliJ or Eclipse Getting Started .NamingException: Could not create resource factory instance, ClassNotFoundException: org.apache.tomcat.dbcp.dbcp2.BasicDataSourceFactory, Instead if i not use the application properties and i configure the datasource bean directly in the Spring Boot Application like this, The error log We will have to add Spring JDBC, Jackson and MySQL Database driver as the dependencies in the pom.xml file. Join our DigitalOcean community of over a million developers for free! Earlier we saw how to implement database operations using Spring JDBC integration. Best regards. How to create JNDI context in Spring Boot with Embedded Tomcat Container, Embedded Tomcat JNDI Map with Spring Boot, NameNotFound Exception - Spring Boot (LATEST), Embedded Tomcat, JNDI, Failed to look up JNDI DataSource In Spring Boot Application, Spring Boot with embedded Tomcat with Apache CXF and JNDI lookup javax.naming.NameNotFoundException, spring boot deploy on tomcat error jndi error. To obtain a reference to a data source bound to the JNDI context, look up the data source's JNDI name from the initial context object. Error creating bean with name 'dataSource' First, we need to add the Simple-JNDI dependency to our pom.xml: <dependency> <groupId> com.github.h-thurow </groupId> <artifactId> simple-jndi </artifactId> <version> 0.23.0 </version> </dependency> Copy The latest version of Simple-JNDI library can be found on Maven Central. dev.driver.class.name (if using none mySql db, remember to update the pom.xml too) iii. Export the project as WAR file and place it in the tomcat deployment directory. Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. Spring Configuration, Tomcat. All rights reserved. The two changes we ned to make are. For example, the following section in application.properties shows how you can access a JBoss AS defined DataSource: HI Pankaj , is that possible to connect DEV server DB connection from local tomcat server? Spring Boot provides an out of the box bean called a ServletWebServerFactory. spring-boot-starter-tomcat: enable an embedded Apache Tomcat 7 instance, by default.We have overriden this by defining our version. spring-boot-starter-data-jpa : It helps in persisting data in SQL Databases with JPA using Spring Data and Hibernate. Whenever we use spring-boot-starter-jdbc module then it implicitly pulls the tomcat-jdbc- {version}.jar which is used to configure the DataSource bean. URI to retrieve the list of Employee will be https://{host}:{port}/SpringDataSource/rest/emps. UnsatisfiedDependencyException: Error creating bean with name 'entityManagerFactory' In this article, We learned about how we can configure JNDI Datasource with spring boot application. I was also facing the same issue and most of the example on internet was using The code should be added in the GlobalNamingResources element. How to run spring boot using Maven & Gradle, 25 years on! Tomcat DataSource JNDI Configuration Example - server.xml Add below code in the tomcat server.xml file. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Notice that ResourceLink name should be matching with the JNDI context name we are using in our application. I recently had the requirement to use JNDI with an embedded Tomcat in Spring Boot. Thats all for the Spring integration with servlet container JNDI context, download the sample project from the below link and play around with it to learn more. NamingException: Could not create resource factory instance, In my pom i have the following dependecies, I am out of solutions 2. How do I map an nested JSON in a RestController? GetEmployeeByID.java. JNDI DataSource Suppose we deploy our Spring Boot application to an application server. We can start Spring boot applications in an embedded tomcat container that comes with some pre-configured default behavior via a properties file. prerequisites. LLPSI: "Marcus Quintum ad terram cadere uidet.". Then how its (org.springframework.jndi.JndiObjectFactoryBean) reference can be assigned to DataSource variable. below JNDI data source parameter can be override by java system variable using "-D" i. dev.jndi.name ii. BeanCreationException: Error creating bean with name 'jpaVendorAdapter', JndiLookupFailureException: JndiObjectTargetSource failed to obtain new target object In this tutorial, we'll look at a few common use cases for configuring the Tomcat embedded server through the application.properties file. Hibernate Tomcat JNDI Example Servlet Implementation. Search. TomcatEmbeddedServletContainerFactory however after trying several things finally i was able to get jndi connection in my application. Let us know if you liked the post. To do that, let's open the build. In this article, We will see Spring boot JNDI datasourceExample. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Make sure value in global attribute should match with the name attributes value in server.xmls Resource tag (read again if you didnt understand ), I hope you know the basic JNDI concept. This tutorial shows you how to configure a JNDI data source in Tomcat and look up it in a Spring MVC application, by developing a sample application that displays a list of users from a MySQL database. Creating a JPA Entity Let's start by defining our sample JPA entity class, which will model users: Our project and server configuration is done and we are ready to test it. While we believe that this content benefits our community, we have not yet thoroughly reviewed it. Our Employee bean that is modeled after Employee table, looks like below. TomcatEmbeddedServletContainerFactory however after trying several things finally i was able to get jndi connection in my application. Coding example for the question Spring Boot 2 Embedded Tomcat Jndi Datasource Configuration-Springboot. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. How to config Tomcat pooling datasource out of Spring Boot embedded one? [Solved] samtools: error while loading shared libraries: libcrypto.so.1.0.0: cannot open shared object file, k8s Error: [ERROR FileAvailableetc-kubernetes-kubelet.conf]: /etc/kubernetes/kubelet.conf already exists, [Solved] NoSuchMethodError: org.springframework.boot.web.servlet.error.ErrorController.getErrorPath, [Solved] flink web ui Submit Task Error: Server Respoonse Message-Internal server error, Mysql Error: 1140 In aggregated query without GROUP BY, expression #2 of SELECT list contains nonaggregated column a.store; this is incompatible with sql_mode=only_full_group_by, [Solved] Mybatis multi-table query error: Column id in field list is ambiguous, [Solved] fluentd Log Error: read timeout reached, [Solved] npm install Error: github requires permissions, Permission denied (publickey). Offending class: javax/servlet/Servlet.class Jul 20, 2017 7:42:08 PM org.apache.catalina.core.ContainerBase startInternal SEVERE: A child container failed during start java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/mywebtest]] at java.util.concurrent.FutureTask.report(FutureTask.java:122) at java.util.concurrent.FutureTask.get(FutureTask.java:192) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1100) at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:782) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1525) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1515) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/mywebtest]] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154) 6 more Caused by: org.apache.tomcat.util.bcel.classfile.ClassFormatException: Invalid byte tag in constant pool: 18 at org.apache.tomcat.util.bcel.classfile.Constant.readConstant(Constant.java:131) at org.apache.tomcat.util.bcel.classfile.ConstantPool. Execute the following MySQL script to create a database called usersdb and a table called users: 1. dev.username v. dev.password During startup it will attempt to perform a JNDI lookup to the datasource This can be also marked as provided if you wish to deploy the war to any other standalone tomcat. Can "it's down to him to fix the machine" and "it's up to him to fix the machine"? Spring Boot : Steps to Configure JNDI DataSource with External Tomcat Add a dependency topom.xmlto give support to our Spring Boot application to run on external servers and also add packaging war (I will explain this later ) Extend main class withSpringBootServletInitializerand override itsconfiguremethod Connecting to Filenet running on Websphere 8.5 via EJB transport using Spring Boot with Embedded Tomcat; Spring Boot using standalone Tomcat with JNDI Oracle Data Source; Spring Boot with embedded Tomcat with Apache CXF and JNDI lookup javax.naming.NameNotFoundException; Spring Boot Embedded Tomcat not starting when using with SpringBootTest JNDI Datasource needs to be configured at the server level in our case it will be in tomcat configuration. For example, the following section in application.properties shows how you can access a JBoss AS defined DataSource: Your prompt reply is greatly appreciated ! For me, this is the driving force. Unable to start embedded Tomcat We are using JdbcTemplate to avoid common errors such as resource leak and remove JDBC boiler plate code. The spring.datasource.jndi-name property can be used as an alternative to the spring.datasource.url, spring.datasource.username and spring.datasource.password properties to access the DataSource from a specific JNDI location. We'd like to help. Spring boot - External tomcat 7 error in JNDI configuration : JNDI name is not related to this context, Spring Boot with embedded Tomcat with Apache CXF and JNDI lookup javax.naming.NameNotFoundException, Spring boot embedded tomcat threadpool configuration, Unable to get JNDI connectivity using Spring Boot 2 and Tomcat 8.5.38 (Not Embedded Tomcat), JNDI in Spring Boot with optional Embedded Tomcat Container, Spring Boot with embedded Tomcat behind Apache proxy, How to know which tomcat version embedded in spring boot, Spring Boot auto configuration for datasource, Handle Embedded Tomcat Exception in Spring Boot, Is Spring Boot with embedded Tomcat or Jetty Production grade, Spring Boot jetty/tomcat embedded access log configuration, Configure Multiple DataSource in Spring Boot with JNDI, Spring Boot - can't start with embedded tomcat error, How to set custom connection properties on DataSource in Spring Boot 1.3.x with default Tomcat connection pool. I am using Spring Boot 2. In my case, the only datasource and JNDI-related thing in application.properties was Sign up for Infrastructure as a Newsletter. Is there a trick for softening butter quickly? The consent submitted will only be used for data processing originating from this website. In that case, we might want to configure and manage the DataSource by using the Application Server's built-in features and access it by using JNDI. If want to deploy .war file inside tomcat then create define JNDI properties inside tomcat XML configurations. Can the STM32F1 used for ST-LINK on the ST discovery boards be used as a normal chip? its working out well. This work is licensed under a Creative Commons Attribution-NonCommercial- ShareAlike 4.0 International License. We know that DataSource with JNDI is the preferred way to achieve connection pooling and get benefits of container implementations. Doing so help Tomcat loads MySQL JDBC driver when it discovers the JNDI DataSource configuration. 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