spring eclipselink 静态编织未启用或未发生

Question

项目用途：

spring 引导 2.1.1
oracle 12 数据库
eclipselink 2.6.5
maven 3.6.0

在这个项目中，我们使用提供的带有实体的 jar，并且我们创建了没有实体的配置 persistence.xml。该项目创建为 war 以部署在 weblogic 12c 服务器中，但我们正在使用 springboot 内置 tomcat 服务器进行测试。偶尔在带有 Weblogic 的测试服务器上。

当我们在任一容器中启动应用程序时，我们都会收到很多 EL warning，如下所示：

[EL Warning]: metadata: 2019-02-28 17:10:14.684--ServerSession(1764986459)--Reverting the lazy setting on the OneToOne or ManyToOne attribute [readonlyUserInformation] for the entity class [class com.adquira.mkp.persistence.entities.auditory.AuditoryEvent] since weaving was not enabled or did not occur.

在到处搜索和寻找如何解决这个问题之后，我们发现的唯一类似问题是 this question about static weaving not working in springboot

pom.xml

<?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>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.1.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.adus</groupId>
    <artifactId>adus-backend</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>war</packaging>
    <name>adus-backend</name>
    <description>Adus back-end development</description>

    <properties>
        <java.version>1.8</java.version>
        <springfox-swagger.version>2.9.2</springfox-swagger.version>
        <eclipselink.version>2.6.5</eclipselink.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
            <exclusions>
                <exclusion>
                    <groupId>org.hibernate</groupId>
                    <artifactId>hibernate-entitymanager</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.hibernate</groupId>
                    <artifactId>hibernate-core</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-integration</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-security</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-tomcat</artifactId>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>com.adquira.orm</groupId>
            <artifactId>adquira-orm</artifactId>
            <version>1.0.20</version>
        </dependency>
        <dependency>
            <groupId>com.oracle</groupId>
            <artifactId>ojdbc7</artifactId>
            <version>12.1.0.2</version>
        </dependency>
        <dependency>
            <groupId>io.jsonwebtoken</groupId>
            <artifactId>jjwt</artifactId>
            <version>0.9.1</version>
        </dependency>   
        <!-- swagger -->
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger2</artifactId>
            <version>${springfox-swagger.version}</version>
        </dependency>
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger-ui</artifactId>
            <version>${springfox-swagger.version}</version>
        </dependency>
        <dependency>
            <groupId>org.eclipse.persistence</groupId>
            <artifactId>org.eclipse.persistence.jpa</artifactId>
            <version>${eclipselink.version}</version>
        </dependency>
        <dependency>
            <groupId>org.eclipse.persistence</groupId>
            <artifactId>org.eclipse.persistence.core</artifactId>
            <version>${eclipselink.version}</version>
        </dependency>
        <dependency>
            <groupId>org.eclipse.persistence</groupId>
            <artifactId>eclipselink</artifactId>
            <version>${eclipselink.version}</version>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

配置class

package com.adus.adusbackend;

import java.util.Properties;

import javax.persistence.EntityManagerFactory;
import javax.sql.DataSource;

import org.eclipse.persistence.config.PersistenceUnitProperties;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.jdbc.DataSourceBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
import org.springframework.instrument.classloading.InstrumentationLoadTimeWeaver;
import org.springframework.orm.jpa.JpaTransactionManager;
import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
import org.springframework.orm.jpa.vendor.EclipseLinkJpaDialect;
import org.springframework.orm.jpa.vendor.EclipseLinkJpaVendorAdapter;


@Configuration
@EnableJpaRepositories(basePackages = { "com.adus.adusbackend.repository.user","com.adus.adusbackend.repository.market"})
public class DatasourceConfiguration  {

    @Bean(destroyMethod = "close")
    @ConfigurationProperties(prefix = "spring.datasource")
      public DataSource dataSource() {
        return DataSourceBuilder.create().build();
      }

    @Bean
    EclipseLinkJpaVendorAdapter jpaVendorAdapter() {
        EclipseLinkJpaVendorAdapter jpaVendorAdapter = new EclipseLinkJpaVendorAdapter();
        jpaVendorAdapter.setDatabasePlatform("org.eclipse.persistence.platform.database.oracle.Oracle12Platform");
        jpaVendorAdapter.setGenerateDdl(Boolean.FALSE);
        jpaVendorAdapter.setShowSql(Boolean.TRUE);

        return jpaVendorAdapter;
    }

    @Bean
    LocalContainerEntityManagerFactoryBean entityManagerFactory(DataSource dataSource) {
        LocalContainerEntityManagerFactoryBean entityManagerFactoryBean = new LocalContainerEntityManagerFactoryBean();
        entityManagerFactoryBean.setDataSource(dataSource);
        entityManagerFactoryBean.setJpaVendorAdapter(jpaVendorAdapter());
        entityManagerFactoryBean.setJpaDialect(new EclipseLinkJpaDialect());

        // Instead of persistence.xml
        entityManagerFactoryBean.setPersistenceUnitName("des");
        entityManagerFactoryBean.setPackagesToScan("com.adquira.mkp.persistence.entities");

        Properties jpaProperties = new Properties();
        jpaProperties.put(PersistenceUnitProperties.WEAVING, detectWeavingMode());
        jpaProperties.put(PersistenceUnitProperties.DDL_GENERATION, "none");
        entityManagerFactoryBean.setJpaProperties(jpaProperties);

        entityManagerFactoryBean.afterPropertiesSet();

        return entityManagerFactoryBean;
    }

    @Bean
    JpaTransactionManager transactionManager(EntityManagerFactory entityManagerFactory) {
        JpaTransactionManager transactionManager = new JpaTransactionManager();
        transactionManager.setEntityManagerFactory(entityManagerFactory);
        return transactionManager;
    }

    private String detectWeavingMode() {
        return InstrumentationLoadTimeWeaver.isInstrumentationAvailable() ? "true" : "static";
    }
}

Answer 1

您有两个挑战。

首先：要完全实现静态编织并增强实体，您需要一个正确配置的 Maven 插件来做到这一点。您需要将 weaver 插件添加到您的插件部分。来自 Eclipselink Wiki-page 的示例：

<plugins>
    ...
    <plugin>
        <groupId>de.empulse.eclipselink</groupId>
        <artifactId>staticweave-maven-plugin</artifactId>
        <version>1.0.0</version>
        <executions>
            <execution>
                <phase>process-classes</phase>
                <goals>
                    <goal>weave</goal>
                </goals>
                <configuration>
                    <persistenceXMLLocation>
                        META-INF/persistence.xml</persistenceXMLLocation>
                    <logLevel>FINE</logLevel>
                </configuration>
            </execution>
        </executions>
        <dependencies>
            <dependency>
                <groupId>org.eclipse.persistence</groupId>
                <artifactId>org.eclipse.persistence.jpa</artifactId>
                <version>${eclipselink.version}</version>
            </dependency>
        </dependencies>
    </plugin>
    ...
</plugins>

其次：您需要让插件知道外部 jar 中的类。关于它的文章很少，我不确定它是否可能（容易）。 wiki 页面仅提及 编织源 ，它可以在 jar 中，但没有直接说明是否也可以编译类。

出于这个原因，我总是让我的实体库 jar 在从源代码编译时很容易得到增强。但是无论如何，有一些相关的帖子，例如 this.

spring eclipselink 静态编织未启用或未发生

spring eclipselink static weaving was not enabled or did not occur

spring-boot

spring-data-jpa

eclipselink