deployment可以工作，jpa可以工作，jawsdb可以工作，但是它们不能一起工作

ndh0cuux  于 2021-07-13  发布在  Java
关注(0)|答案(0)|浏览(217)

我有一个应用程序部署到heroku与jaws mariadb资源。
我可以通过我的localhost:8080 with 我的persistence.xml配置。我还可以连接到本地tomcat服务器上的远程jawsdb。我也可以在heroku上运行我的应用程序，当它不访问持久层时。但是，由于某些原因，不会创建持久性提供程序。
我使用maven进行依赖关系管理。所有的零件都是分开工作的。他们就是不在一起。我错过了什么？
这是我的pom，persistence.xml，我的错误日志和屏幕截图，如果你知道任何工具或技术来获取更多信息，请告诉我。我可以访问heroku bash控制台。
聚甲醛

<?xml version="1.0" encoding="UTF-8"?>
<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/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.gerald.ryan</groupId>
    <artifactId>blocks</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>war</packaging>

    <name>blocks</name>
    <url>http://maven.apache.org</url>

    <properties>
        <java.version>1.8</java.version>
        <spring.version>5.3.5</spring.version>
        <hibernate.version>5.4.1.Final</hibernate.version>
        <cglib.version>2.2.2</cglib.version>
    </properties>

    <dependencies>

        <!-- Part of the Spring MVC Maven archetype -->

        <!-- Spring core & mvc -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-orm</artifactId>
            <version>${spring.version}</version>
            <type>jar</type>
            <scope>compile</scope>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>${spring.version}</version>
            <type>jar</type>
            <scope>test</scope>
        </dependency>

        <!-- CGLib for @Configuration -->
        <dependency>
            <groupId>cglib</groupId>
            <artifactId>cglib-nodep</artifactId>
            <version>${cglib.version}</version>
            <scope>runtime</scope>
        </dependency>

        <!-- Maven says this below was moved to one below it-->
        <!-- <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>servlet-api</artifactId>
            <version>2.4</version>
            <scope>provided</scope>
        </dependency> -->

        <!-- https://mvnrepository.com/artifact/javax.servlet/javax.servlet-api -->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>4.0.1</version>
            <scope>provided</scope>
        </dependency>

        <dependency>
            <groupId>javax.servlet.jsp</groupId>
            <artifactId>jsp-api</artifactId>
            <version>2.1</version>
            <scope>provided</scope>
        </dependency>

        <!-- END of the Spring MVC Maven archetype -->

        <!-- pubnub -->
        <dependency>
            <groupId>com.pubnub</groupId>
            <artifactId>pubnub-gson</artifactId>
            <version>4.35.0</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/org.jetbrains/annotations -->
        <dependency>
            <groupId>org.jetbrains</groupId>
            <artifactId>annotations</artifactId>
            <version>13.0</version>
        </dependency>

        <!-- Database Connectivity -->

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.23</version>
        </dependency>
        <dependency>
            <groupId>org.eclipse.persistence</groupId>
            <artifactId>eclipselink</artifactId>
            <version>3.0.0</version>
        </dependency>
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-core</artifactId>
            <version>${hibernate.version}</version>
        </dependency>
        <dependency>
            <groupId>org.hibernate.validator</groupId>
            <artifactId>hibernate-validator</artifactId>
            <version>6.2.0.Final</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/org.apache.httpcomponents/httpclient -->
        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient</artifactId>
            <version>4.5.13</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/junit/junit -->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.13.2</version>
            <scope>test</scope>
        </dependency>

        <!-- GSON For serialization -->
        <dependency>
            <groupId>com.google.code.gson</groupId>
            <artifactId>gson</artifactId>
            <version>2.8.6</version>
        </dependency>

        <!-- use in jsp -->
        <dependency>
            <groupId>jstl</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/json-taglib/json-taglib -->
        <dependency>
            <groupId>atg.taglib.json</groupId>
            <artifactId>json-taglib</artifactId>
            <version>0.4.1</version>
        </dependency>
        <!-- use in jsp -->

    </dependencies>

    <repositories>
        <repository>
            <id>springsource-milestones</id>
            <name>SpringSource Milestones Proxy</name>
            <url>https://oss.sonatype.org/content/repositories/springsource-milestones</url>
        </repository>

        <repository>
            <id>public</id>
            <url>http://maven.nuxeo.org/nexus/content/repositories/public/</url>
        </repository>

    </repositories>

    <build>
        <finalName>blocks</finalName>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>2.0.2</version>
                <configuration>
                    <source>${java.version}</source>
                    <target>${java.version}</target>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-dependency-plugin</artifactId>
                <executions>
                    <execution>
                        <phase>package</phase>
                        <goals>
                            <goal>copy</goal>
                        </goals>
                        <configuration>
                            <artifactItems>
                                <artifactItem>
                                    <groupId>com.heroku</groupId>
                                    <artifactId>webapp-runner</artifactId>
                                    <version>9.0.41.0</version>
                                    <destFileName>webapp-runner.jar</destFileName>
                                </artifactItem>
                            </artifactItems>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>
</project>
<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.2"
    xmlns="http://xmlns.jcp.org/xml/ns/persistence"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_2.xsd">
    <!-- <persistence-unit name="blocks"> <class>com.gerald.ryan.blocks.entity.Block</class> 
        <class>com.gerald.ryan.blocks.entity.Blockchain</class> <class>com.gerald.ryan.blocks.entity.Transaction</class> 
        <class>com.gerald.ryan.blocks.entity.Wallet</class> <class>com.gerald.ryan.blocks.entity.User</class> 
        <properties> <property name="javax.persistence.jdbc.url" value="jdbc:mysql://localhost:3306/blockchain?serverTimezone=UTC" 
        /> <property name="javax.persistence.jdbc.user" value="root" /> <property 
        name="javax.persistence.jdbc.password" value="root" /> <property name="javax.persistence.jdbc.driver" 
        value="com.mysql.jdbc.Driver" /> <property name="javax.persistence.schema-generation.database.action" 
        value="create" /> <property name="hibernate.show_sql" value="true" /> <property 
        name="hibernate.format_sql" value="true" /> </properties> </persistence-unit> -->
    <persistence-unit name="blocks">
        <class>com.gerald.ryan.blocks.entity.Block</class>
        <class>com.gerald.ryan.blocks.entity.Blockchain</class>
        <class>com.gerald.ryan.blocks.entity.Transaction</class>
        <class>com.gerald.ryan.blocks.entity.Wallet</class>
        <class>com.gerald.ryan.blocks.entity.User</class>
        <properties>
            <property name="javax.persistence.jdbc.url"
                value="jdbc:mysql://u3r5w4ayhxzdrw87.cbetxkdyhwsb.us-east-1.rds.amazonaws.com:3306/f5wvp1u840cyi24e" />
            <property name="javax.persistence.jdbc.user"
                value="e9hhcvg1kn3ik6cr" />
            <property name="javax.persistence.jdbc.password"
                value="p0fhaapu58vhqvor" />
            <property name="javax.persistence.jdbc.driver"
                value="com.mysql.jdbc.Driver" />
            <property
                name="javax.persistence.schema-generation.database.action"
                value="create" />
            <property name="hibernate.show_sql" value="true" />
            <property name="hibernate.format_sql" value="true" />
        </properties>
    </persistence-unit>
<!-- as config var on https://dashboard.heroku.com/apps/blocksjava/settings -->
<!-- mysql://e9hhcvg1kn3ik6cr:b5wkq1kvydnyogrp@u3r5w4ayhxzdrw87.cbetxkdyhwsb.us-east-1.rds.amazonaws.com:3306/f5wvp1u840cyi24e -->

</persistence>
package com.gerald.ryan.blocks.dbConnection;

import java.net.URI;
import java.net.URISyntaxException;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;

import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.Persistence;

public abstract class DBConnection {
    protected EntityManagerFactory emf = null;
    protected EntityManager em = null;
    private String pUName = "blocks";

    public void connect() {
        System.err.println("Persistence Provider: " + Persistence.PERSISTENCE_PROVIDER);
        System.err.println("Persistence Class: " + Persistence.class);
        this.emf = Persistence.createEntityManagerFactory(pUName);
        this.em = emf.createEntityManager();
    }

    public void disconnect() {
        if (this.em != null) {
            em.close();
        }
        if (this.emf != null) {
            emf.close();
        }
    }
Type Exception Report

Message Request processing failed; nested exception is javax.persistence.PersistenceException: No Persistence provider for EntityManager named blocks

Description The server encountered an unexpected condition that prevented it from fulfilling the request.

Exception

org.springframework.web.util.NestedServletException: Request processing failed; nested exception is javax.persistence.PersistenceException: No Persistence provider for EntityManager named blocks
    org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1014)
    org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:652)
    org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:733)
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
Root Cause

javax.persistence.PersistenceException: No Persistence provider for EntityManager named blocks
    javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:85)
    javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:54)
    com.gerald.ryan.blocks.dbConnection.DBConnection.connect(DBConnection.java:12)
    com.gerald.ryan.blocks.Dao.UserDao.addUser(UserDao.java:16)
    com.gerald.ryan.blocks.Service.UserService.addUserService(UserService.java:22)
    com.gerald.ryan.blocks.controller.RegistrationController.registerUser(RegistrationController.java:40)
    sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    java.lang.reflect.Method.invoke(Method.java:498)
    org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:197)
    org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:141)
    org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:106)
    org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:894)
    org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808)
    org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
    org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1060)
    org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:962)
    org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)
    org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:652)
    org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:733)
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)

我可能缺少哪些依赖项或配置，或者哪些工具和技术可以帮助我了解更多？
jaws db dashboard-通过localhost正确连接

JavaspringMavenjpaheroku

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