I am working on a Spring MVC project and I want to create a repository interface that extends JpaRepository. However, I'm encountering compilation errors indicating that some JAR files might be missing or there are conflicts between the JARs.
Here's my repository interface:
public interface StudentRepository extends JpaRepository<Student , Long> {
}
I've included the following JAR files in my project:
antlr-2.7.7.jar
aopalliance-1.0.jar
aspectjrt-1.8.0.jar
commons-logging-1.1.3.jar
dom4j-1.6.1.jar
hibernate-commons-annotations-4.0.4.Final.jar
hibernate-core-4.3.5.Final.jar
hibernate-entitymanager-4.3.5.Final.jar
hibernate-jpa-2.1-api-1.0.0.Final.jar
hsqldb-2.3.2.jar
jandex-1.1.0.Final.jar
javassist-3.18.1-GA.jar
javax.servlet-api-3.1.0.jar
javax.servlet.jsp.jstl-1.2.5.jar
jboss-logging-3.1.3.GA.jar
jboss-logging-annotations-1.2.0.Beta1.jar
jboss-transaction-api_1.2_spec-1.0.0.Final.jar
jcl-over-slf4j-1.7.7.jar
jsp-api-2.1.jar
jstl-api-1.2.jar
serializer-2.7.2.jar
servlet-api-2.5.jar
slf4j-api-1.7.7.jar
spring-aop-4.0.7.RELEASE.jar
spring-beans-4.0.7.RELEASE.jar
spring-context-4.0.7.RELEASE.jar
spring-core-4.0.7.RELEASE.jar
spring-data-commons-1.8.0.RELEASE.jar
spring-data-jpa-1.6.0.RELEASE.jar
spring-expression-4.0.7.RELEASE.jar
spring-jdbc-4.0.7.RELEASE.jar
spring-orm-4.0.7.RELEASE.jar
spring-tx-4.0.7.RELEASE.jar
spring-web-4.0.7.RELEASE.jar
spring-webmvc-4.0.7.RELEASE.jar
xalan-2.7.2.jar
My Repository Class
package dao;
import entity.Student;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.data.repository.CrudRepository;
import org.springframework.stereotype.Repository;
@Repository
public interface StudentDao extends CrudRepository<Student, Long> {
// methods if any
}
My Controller Class
package controller;
import dao.StudentDao;
import entity.Student;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import java.util.List;
@Controller
public class StudentController {
@Autowired
StudentDao studentDao;
@RequestMapping("/student")
public String studentList(Model model) {
List<Student> students = (List<Student>) studentDao.findAll();
model.addAttribute("users", students);
System.out.println("List of students: " + students);
System.out.println("Controller of students");
return "student";
}
}
ApplicationContext.xml is here
<?xml version='1.0' encoding='UTF-8' ?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:jpa="http://www.springframework.org/schema/data/jpa"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/data/jpa
http://www.springframework.org/schema/data/jpa/spring-jpa.xsd">
<!-- Load properties from application.properties -->
<bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="location" value="/WEB-INF/application.properties" />
</bean>
<context:annotation-config />
<!-- Enable MVC annotations -->
<mvc:annotation-driven />
<!-- Serve static resources -->
<mvc:resources mapping="/reports/**" location="/WEB-INF/reports/" />
<mvc:resources mapping="/images/**" location="/WEB-INF/images/" />
<mvc:resources location="/WEB-INF/resources/" mapping="/resources/**"/>
<!-- Enable transaction management -->
<tx:annotation-driven transaction-manager="jpaTransactionManager"/>
<!-- Component scan for all relevant packages -->
<context:component-scan base-package="controller, service, dao, config, dto,entity"/>
<!-- Configure data source -->
<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.mysql.cj.jdbc.Driver" />
<property name="url" value="jdbc:mysql://localhost:3306/springdb" />
<property name="username" value="root" />
<property name="password" value="root" />
</bean>
<!-- Configure JPA EntityManagerFactory -->
<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="packagesToScan" value="entity.Student" />
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter" />
</property>
<property name="jpaProperties">
<props>
<!-- Set Hibernate dialect -->
<prop key="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</prop>
<!-- Show SQL queries in console for debugging -->
<prop key="hibernate.show_sql">true</prop>
<!-- Automatically update database schema -->
<prop key="hibernate.hbm2ddl.auto">update</prop>
</props>
</property>
</bean>
<!-- Configure JPA Transaction Manager -->
<bean id="jpaTransactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory" />
</bean>
</beans>
Errors in console i am facing
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'studentController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: dao.StudentDao controller.StudentController.studentDao; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [dao.StudentDao] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:293)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1186)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
hello-tomcat9-web$ tree
.
└── src
└── main
├── java
│ └── com
│ └── example
│ ├── controller
│ │ └── UserController.java
│ ├── model
│ │ └── User.java
│ └── repository
│ └── UserRepository.java
└── webapp
├── META-INF
│ └── MANIFEST.MF
└── WEB-INF
├── lib
│ ├── antlr-2.7.7.jar
│ ├── aopalliance-1.0.jar
│ ├── aspectjrt-1.8.0.jar
│ ├── commons-logging-1.1.3.jar
│ ├── dom4j-1.6.1.jar
│ ├── hibernate-commons-annotations-4.0.4.Final.jar
│ ├── hibernate-core-4.3.5.Final.jar
│ ├── hibernate-entitymanager-4.3.5.Final.jar
│ ├── hibernate-jpa-2.1-api-1.0.0.Final.jar
│ ├── hsqldb-2.3.2.jar
│ ├── jandex-1.1.0.Final.jar
│ ├── javassist-3.18.1-GA.jar
│ ├── javax.servlet-api-3.1.0.jar
│ ├── javax.servlet.jsp.jstl-1.2.5.jar
│ ├── jboss-logging-3.1.3.GA.jar
│ ├── jboss-logging-annotations-1.2.0.Beta1.jar
│ ├── jboss-transaction-api_1.2_spec-1.0.0.Final.jar
│ ├── jcl-over-slf4j-1.7.7.jar
│ ├── jsp-api-2.1.jar
│ ├── jstl-api-1.2.jar
│ ├── serializer-2.7.2.jar
│ ├── servlet-api-2.5.jar
│ ├── slf4j-api-1.7.7.jar
│ ├── spring-aop-4.0.7.RELEASE.jar
│ ├── spring-beans-4.0.7.RELEASE.jar
│ ├── spring-context-4.0.7.RELEASE.jar
│ ├── spring-core-4.0.7.RELEASE.jar
│ ├── spring-data-commons-1.8.0.RELEASE.jar
│ ├── spring-data-jpa-1.6.0.RELEASE.jar
│ ├── spring-expression-4.0.7.RELEASE.jar
│ ├── spring-jdbc-4.0.7.RELEASE.jar
│ ├── spring-orm-4.0.7.RELEASE.jar
│ ├── spring-tx-4.0.7.RELEASE.jar
│ ├── spring-web-4.0.7.RELEASE.jar
│ ├── spring-webmvc-4.0.7.RELEASE.jar
│ ├── xalan-2.7.2.jar
│ └── xml-apis-1.0.b2.jar
├── spring
│ ├── application-context.xml
│ └── dispatcher-config.xml
├── views
│ └── index.jsp
└── web.xml
package com.example.model;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
@Entity
public class User {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private Long id;
private String name;
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
package com.example.repository;
import org.springframework.data.repository.CrudRepository;
import com.example.model.User;
public interface UserRepository extends CrudRepository<User, Long> {
}
package com.example.controller;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import com.example.model.User;
import com.example.repository.UserRepository;
@Controller
public class UserController {
@Autowired
private UserRepository userRepository;
@RequestMapping(value = "/",method = RequestMethod.GET)
public String index(Model model) {
model.addAttribute("users", userRepository.findAll());
return "index";
}
@RequestMapping(value = "/add",method = RequestMethod.POST)
public String addUser(@RequestParam String name) {
User user = new User();
user.setName(name);
userRepository.save(user);
return "redirect:/";
}
@RequestMapping(value = "/del",method = RequestMethod.GET)
public String delUser(@RequestParam Long id) {
userRepository.delete(id);
return "redirect:/";
}
}
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>User List</title>
</head>
<body>
<h1>User List</h1>
<form action="add" method="post">
<input type="text" name="name" placeholder="Enter user name" required />
<input type="submit" value="Add User" />
</form>
<ul>
<c:forEach items="${users}" var="user">
<li>${user.id} - ${user.name} -
<a href="<c:url value='/del'><c:param name='id' value='${user.id}'/></c:url>">Delete User</a>
</li>
</c:forEach>
</ul>
</body>
</html>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd">
<context:component-scan base-package="com.example" />
<mvc:annotation-driven />
<mvc:default-servlet-handler />
<bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/views/" />
<property name="suffix" value=".jsp" />
</bean>
</beans>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:jpa="http://www.springframework.org/schema/data/jpa"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/data/jpa
http://www.springframework.org/schema/data/jpa/spring-jpa.xsd">
<context:component-scan base-package="com.example" />
<context:annotation-config />
<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="org.hsqldb.jdbc.JDBCDriver" />
<property name="url" value="jdbc:hsqldb:mem:testdb" />
<property name="username" value="sa" />
<property name="password" value="" />
</bean>
<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="packagesToScan" value="com.example.model" />
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
<property name="generateDdl" value="true" />
<property name="showSql" value="true" />
</bean>
</property>
</bean>
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory" />
</bean>
<tx:annotation-driven />
<jpa:repositories base-package="com.example.repository" />
</beans>
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd" id="WebApp_ID" version="4.0">
<display-name>hello-tomcat9-web</display-name>
<servlet>
<servlet-name>dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring/dispatcher-config.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring/application-context.xml</param-value>
</context-param>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.jsp</welcome-file>
<welcome-file>default.htm</welcome-file>
</welcome-file-list>
</web-app>
antlr-2.7.7.jar
aopalliance-1.0.jar
aspectjrt-1.8.0.jar
commons-logging-1.1.3.jar
dom4j-1.6.1.jar
hibernate-commons-annotations-4.0.4.Final.jar
hibernate-core-4.3.5.Final.jar
hibernate-entitymanager-4.3.5.Final.jar
hibernate-jpa-2.1-api-1.0.0.Final.jar
hsqldb-2.3.2.jar
jandex-1.1.0.Final.jar
javassist-3.18.1-GA.jar
javax.servlet-api-3.1.0.jar
javax.servlet.jsp.jstl-1.2.5.jar
jboss-logging-3.1.3.GA.jar
jboss-logging-annotations-1.2.0.Beta1.jar
jboss-transaction-api_1.2_spec-1.0.0.Final.jar
jcl-over-slf4j-1.7.7.jar
jsp-api-2.1.jar
jstl-api-1.2.jar
serializer-2.7.2.jar
servlet-api-2.5.jar
slf4j-api-1.7.7.jar
spring-aop-4.0.7.RELEASE.jar
spring-beans-4.0.7.RELEASE.jar
spring-context-4.0.7.RELEASE.jar
spring-core-4.0.7.RELEASE.jar
spring-data-commons-1.8.0.RELEASE.jar
spring-data-jpa-1.6.0.RELEASE.jar
spring-expression-4.0.7.RELEASE.jar
spring-jdbc-4.0.7.RELEASE.jar
spring-orm-4.0.7.RELEASE.jar
spring-tx-4.0.7.RELEASE.jar
spring-web-4.0.7.RELEASE.jar
spring-webmvc-4.0.7.RELEASE.jar
xalan-2.7.2.jar
export WAR = hello-t9-web.war
put hello-t9-web.war to Tomcat9/webapps
Open "http://localhost:8080/hello-t9-web"
Based on the information you provided, the only things I can help with are the following:
You can jump directly to the following paragraph Jar List
to see if you have the following files?
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.example</groupId>
<artifactId>helloworldwebapp</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>helloworld Maven Webapp</name>
<properties>
<maven.compiler.target>17</maven.compiler.target>
<maven.compiler.source>17</maven.compiler.source>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-jpa</artifactId>
<version>3.3.1</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>6.1.10</version>
</dependency>
<dependency>
<groupId>jakarta.persistence</groupId>
<artifactId>jakarta.persistence-api</artifactId>
<version>3.2.0</version>
</dependency>
</dependencies>
<build>
<finalName>helloworld</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>3.4.0</version>
<configuration>
<failOnMissingWebXml>false</failOnMissingWebXml>
</configuration>
</plugin>
</plugins>
</build>
</project>
mvn dependency:copy-dependencies -DoutputDirectory=target/libs
target/libs
├── antlr4-runtime-4.13.0.jar
├── jakarta.annotation-api-2.0.0.jar
├── jakarta.persistence-api-3.2.0.jar
├── micrometer-commons-1.12.7.jar
├── micrometer-observation-1.12.7.jar
├── slf4j-api-2.0.2.jar
├── spring-aop-6.1.9.jar
├── spring-beans-6.1.9.jar
├── spring-context-6.1.9.jar
├── spring-core-6.1.9.jar
├── spring-data-commons-3.3.1.jar
├── spring-data-jpa-3.3.1.jar
├── spring-expression-6.1.9.jar
├── spring-jcl-6.1.9.jar
├── spring-jdbc-6.1.10.jar
├── spring-orm-6.1.10.jar
└── spring-tx-6.1.9.jar
Now please check the jar file in the following list. Have you downloaded it?
mvn dependency:tree
+- org.springframework.data:spring-data-jpa:jar:3.3.1:compile
| +- org.springframework.data:spring-data-commons:jar:3.3.1:compile
| +- org.springframework:spring-context:jar:6.1.9:compile
| | +- org.springframework:spring-expression:jar:6.1.9:compile
| | \- io.micrometer:micrometer-observation:jar:1.12.7:compile
| | \- io.micrometer:micrometer-commons:jar:1.12.7:compile
| +- org.springframework:spring-aop:jar:6.1.9:compile
| +- org.springframework:spring-tx:jar:6.1.9:compile
| +- org.springframework:spring-beans:jar:6.1.9:compile
| +- org.springframework:spring-core:jar:6.1.9:compile
| | \- org.springframework:spring-jcl:jar:6.1.9:compile
| +- org.antlr:antlr4-runtime:jar:4.13.0:compile
| +- jakarta.annotation:jakarta.annotation-api:jar:2.0.0:compile
| \- org.slf4j:slf4j-api:jar:2.0.2:compile
+- org.springframework:spring-orm:jar:6.1.10:compile
| \- org.springframework:spring-jdbc:jar:6.1.10:compile
\- jakarta.persistence:jakarta.persistence-api:jar:3.2.0:compile
It is recommended that :
(1) you create an empty directory,
(2) then generate a pom.xml (as I provided above),
(3) and then execute the mvn dependency:copy-dependencies -DoutputDirectory=target/libs
command,
(4) you can obtain all dependent jar files in the target/libs
directory at once , and then copy it to your webapp project.