使用Java配置配置eclipselink Spring MVC MySql(无XML配置)
作者：互联网
我正在尝试将eclipselink JPA集成到我的Spring Web应用程序中.
有什么好的指南哦,如何仅使用基于Java的配置在Spring MVC中为MySql数据库配置eclipseLink？没有dispatcher-servlet.xml.
我熟悉基于Java的Spring配置. (使用@ Configuration,@ EnableWebMvc,@ ComponentScan,@ EnableTransactionManagement等).但是不熟悉Spring MVC中基于eclipseLink java的配置.
以下是pom.xml
<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>roster3</groupId>
<artifactId>roster3</artifactId>
<packaging>war</packaging>
<version>1.0-SNAPSHOT</version>
<name>roster3 Maven Webapp</name>
<url>http://maven.apache.org</url>
<properties>
<spring.version>4.0.2.RELEASE</spring.version>
<hibernate.version>4.3.4.Final</hibernate.version>
<hibernate.validator.version>5.1.0.Final</hibernate.validator.version>
<mysql.connector.version>5.1.29</mysql.connector.version>
<eclipselink.version>2.5.0</eclipselink.version>
<aspectj.version>1.5.4</aspectj.version>
</properties>
<repositories>
<repository>
<id>oss.sonatype.org</id>
<name>OSS Sonatype Staging</name>
<url>https://oss.sonatype.org/content/groups/staging</url>
</repository>
</repositories>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<!-- Spring dependencies -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- <dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${spring.version}</version>
</dependency> -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- Servlet & jstl -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.0.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!-- Hibernate Validation & DB Validation -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>${mysql.connector.version}</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-validator</artifactId>
<version>${hibernate.validator.version}</version>
</dependency>
<!-- eclipselink -->
<dependency>
<groupId>org.eclipse.persistence</groupId>
<artifactId>eclipselink</artifactId>
<version>${eclipselink.version}</version>
<exclusions>
<exclusion>
<groupId>org.eclipse.persistence</groupId>
<artifactId>commonj.sdo</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.eclipse.persistence</groupId>
<artifactId>javax.persistence</artifactId>
<version>2.1.0</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-instrument</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>aspectj</groupId>
<artifactId>aspectjrt</artifactId>
<version>${aspectj.version}</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.7.4</version>
</dependency>
</dependencies>
<build>
<!-- To define the plugin version in your parent POM -->
<plugins>
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<version>2.3-SNAPSHOT</version>
<configuration>
<url>http://127.0.0.1:8080/roster3</url>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
<encoding>UTF-8</encoding>
<argLine>-javaagent:eclipselink.jar</argLine>
</configuration>
</plugin>
<!-- This plugin ensures the EclipseLink static weaving -->
<plugin>
<artifactId>eclipselink-staticweave-maven-plugin</artifactId>
<groupId>au.com.alderaan</groupId>
<version>1.0.4</version>
<executions>
<execution>
<goals>
<goal>weave</goal>
</goals>
<phase>process-classes</phase>
<configuration>
<logLevel>ALL</logLevel>
<!-- <includeProjectClasspath>true</includeProjectClasspath> -->
</configuration>
</execution>
</executions>
<dependencies>
<dependency>
<groupId>org.eclipse.persistence</groupId>
<artifactId>eclipselink</artifactId>
<version>${eclipselink.version}</version>
</dependency>
</dependencies>
</plugin>
</plugins>
<pluginManagement>
<plugins>
<!--This plugin's configuration is used to store Eclipse m2e settings
only. It has no influence on the Maven build itself. -->
<plugin>
<groupId>org.eclipse.m2e</groupId>
<artifactId>lifecycle-mapping</artifactId>
<version>1.0.0</version>
<configuration>
<lifecycleMappingMetadata>
<pluginExecutions>
<pluginExecution>
<pluginExecutionFilter>
<groupId>
au.com.alderaan
</groupId>
<artifactId>
eclipselink-staticweave-maven-plugin
</artifactId>
<versionRange>
[1.0.4,)
</versionRange>
<goals>
<goal>weave</goal>
</goals>
</pluginExecutionFilter>
<action>
<execute>
<runOnIncremental>true</runOnIncremental>
</execute>
</action>
</pluginExecution>
</pluginExecutions>
</lifecycleMappingMetadata>
</configuration>
</plugin>
</plugins>
</pluginManagement>
<finalName>roster3</finalName>
</build>
</project>
以下是我到目前为止所做的尝试.
配置类Config.java
package com.ecw.roster.config;
import java.util.Properties;
import org.eclipse.persistence.platform.database.DatabasePlatform;
import org.eclipse.persistence.platform.database.MySQLPlatform;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.MessageSource;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.PropertySource;
import org.springframework.context.support.PropertySourcesPlaceholderConfigurer;
import org.springframework.context.support.ResourceBundleMessageSource;
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;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.annotation.EnableTransactionManagement;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
import org.springframework.web.servlet.view.JstlView;
import org.springframework.web.servlet.view.UrlBasedViewResolver;
@Configuration //Marks this class as configuration
@EnableWebMvc
//Specifies which package to scan
@ComponentScan("com.ecw.roster")
@PropertySource(value = "classpath:application.properties")
//Enable Spring's annotations
@EnableTransactionManagement
public class Config extends WebMvcConfigurerAdapter{
private static final String PROPERTY_NAME_HIBERNATE_DIALECT = "hibernate.dialect";
private static final String PROPERTY_NAME_HIBERNATE_SHOW_SQL = "hibernate.show_sql";
private static final String PROPERTY_NAME_ENTITYMANAGER_PACKAGES_TO_SCAN = "entitymanager.packages.to.scan";
private static final String PROPERTY_NAME_DATABASEPLATFORM = "databasePlatform";
private static final String PROPERTY_NAME_GENERATE_DDL = "generateDdl";
private static final String PROPERTY_NAME_SHOW_SQL = "showSql";
@Value("${jdbc.driverClassName}")
private String driverClassName;
@Value("${jdbc.url}")
private String url;
@Value("${jdbc.username}")
private String username;
@Value("${jdbc.password}")
private String password;
@Value("${hibernate.dialect}")
private String hibernate_dialect;
@Value("${hibernate.show_sql}")
private String hibernate_show_sql;
@Value("${entitymanager.packages.to.scan}")
private String entity_package_to_scan;
@Bean
public static PropertySourcesPlaceholderConfigurer getPropertySourcesPlaceholderConfigurer() {
return new PropertySourcesPlaceholderConfigurer();
}
@Bean
public UrlBasedViewResolver setupViewResolver() {
UrlBasedViewResolver resolver = new UrlBasedViewResolver();
System.out.println("Roster 3 : Initializing UrlBasedViewResolver........");
resolver.setPrefix("/WEB-INF/views/");
resolver.setSuffix(".jsp");
resolver.setViewClass(JstlView.class);
return resolver;
}
@Bean
public PlatformTransactionManager transactionManager(){
System.out.println("Roster 3 : LocalContainerEntityManagerFactoryBean *************");
JpaTransactionManager transactionManager = new JpaTransactionManager();
transactionManager.setEntityManagerFactory(entityManagerFactoryBean().getObject());
return transactionManager;
}
@Bean
public LocalContainerEntityManagerFactoryBean entityManagerFactoryBean() {
LocalContainerEntityManagerFactoryBean em = new LocalContainerEntityManagerFactoryBean();
em.setPackagesToScan(new String[] { "com.ecw.roster.beans" });
em.setPersistenceUnitName("roster3");
DatabasePlatform dp = new MySQLPlatform();
em.setJpaVendorAdapter(getEclipseLinkJpaVendorAdapter());
return em;
}
private EclipseLinkJpaVendorAdapter getEclipseLinkJpaVendorAdapter(){
System.out.println("Roster 3 : EclipseLinkJpaVendorAdapter initialization ***************");
EclipseLinkJpaVendorAdapter vendorAdapter = new EclipseLinkJpaVendorAdapter();
vendorAdapter.setDatabasePlatform("org.eclipse.persistence.platform.database.MySQLPlatform");
vendorAdapter.setGenerateDdl(false);
vendorAdapter.setShowSql(true);
return vendorAdapter;
}
private Properties eclipseLinkProperty(){
Properties properties = new Properties();
properties.put("eclipselink.deploy-on-startup", "true");
properties.put("eclipselink.ddl-generation", "create-or-extend-tables");
properties.put("eclipselink.ddl-generation.output-mode", "database");
properties.put("eclipselink.weaving", "static");
properties.put("eclipselink.weaving.lazy", "true");
properties.put("eclipselink.weaving.internal", "true");
properties.put("eclipselink.logging.level", "SEVERE");
properties.put("eclipselink.query-results-cache.type", "WEAK");
properties.put("eclipselink.jdbc.batch-writing", "JDBC");
properties.put("eclipselink.jdbc.batch-writing.size", "1000");
return properties;
}
@Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
System.out.println("In Resouce Handler");
registry.addResourceHandler("/resources/**").addResourceLocations("/resources/defaultTheme/");
}
@Bean
public MessageSource messageSource() {
ResourceBundleMessageSource messageSource = new ResourceBundleMessageSource();
messageSource.setBasename("/WEB-INF/messages/messages/");
return messageSource;
}
}
eclipselink的persistence.xml文件：
<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.1"
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_1.xsd">
<persistence-unit name="roster3" transaction-type="RESOURCE_LOCAL">
<provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
<class>com.ecw.roster.beans.Roster</class>
<exclude-unlisted-classes>false</exclude-unlisted-classes>
<properties>
<property name="javax.persistence.jdbc.driver" value="com.mysql.jdbc.Driver" />
<property name="javax.persistence.jdbc.url" value="jdbc:mysql://localhost:3306/roster" />
<property name="javax.persistence.jdbc.user" value="root" />
<property name="javax.persistence.jdbc.password" value="mysqladmin" />
</properties>
</persistence-unit>
</persistence>
我能够建立&部署项目,但出现连接泄漏和故障然后我的上下文被tomcat容器停止了.
请告诉我我在做什么错.
谢谢
解决方法:
以下配置将使Spring能够使用两个应用程序上下文(根上下文和Web应用程序上下文),并将配置您所需的大多数内容.
@Configuration
@EnableTransactionManagement
@EnableMBeanExport
@EnableJpaRepositories("your.jpa.repositories.package")
@ComponentScan(basePackages = "gr.xe.payments", excludeFilters = {@ComponentScan.Filter(value = Controller.class), @ComponentScan.Filter(type = FilterType.ASSIGNABLE_TYPE ,value = MvcConfig.class)})
public class ApplicationConfig {
}
@EnableWebMvc
@ComponentScan(basePackages = "your.controller.package", includeFilters = @ComponentScan.Filter(value = Controller.class))
public class MvcConfig extends WebMvcConfigurerAdapter {
@Bean
public TilesConfigurer tilesViewResolver() {
TilesConfigurer tilesViewResolver = new TilesConfigurer();
tilesViewResolver.setDefinitions(new String[]{"/WEB-INF/tiles.xml"});
return tilesViewResolver;
}
@Bean
public UrlBasedViewResolver urlBasedViewResolver() {
UrlBasedViewResolver urlBasedViewResolver = new UrlBasedViewResolver();
urlBasedViewResolver.setViewClass(TilesView.class);
return urlBasedViewResolver;
}
@Bean(name = "messageSource")
public ReloadableResourceBundleMessageSource reloadableResourceBundleMessageSource() {
ReloadableResourceBundleMessageSource reloadableResourceBundleMessageSource = new ReloadableResourceBundleMessageSource();
reloadableResourceBundleMessageSource.setBasename("WEB-INF/i18n/messages");
reloadableResourceBundleMessageSource.setFallbackToSystemLocale(false);
reloadableResourceBundleMessageSource.setDefaultEncoding("UTF-8");
return reloadableResourceBundleMessageSource;
}
@Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
registry.addResourceHandler("/resources/**").addResourceLocations("/resources/");
}
}
@Configuration
public class DatabaseConfig {
@Bean
public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
EclipseLinkJpaVendorAdapter vendorAdapter = new EclipseLinkJpaVendorAdapter();
vendorAdapter.setGenerateDdl(true);
vendorAdapter.setShowSql(false);
LocalContainerEntityManagerFactoryBean factory =
new LocalContainerEntityManagerFactoryBean();
factory.setJpaVendorAdapter(vendorAdapter);
factory.setPackagesToScan("your.domain.package");
factory.setDataSource(dataSource());
factory.setJpaProperties(jpaProperties());
return factory;
}
@Bean
public JpaTransactionManager transactionManager() {
JpaTransactionManager txManager = new JpaTransactionManager();
txManager.setEntityManagerFactory(entityManagerFactory().getObject());
return txManager;
}
@Bean
public PersistenceExceptionTranslationPostProcessor persistenceExceptionTranslationPostProcessor() {
return new PersistenceExceptionTranslationPostProcessor();
}
@Bean
public DataSource dataSource() {
//This uses JNDI, you could create the data source in any way you want
try {
Context initCtx = new InitialContext();
Context envCtx = (Context) initCtx.lookup("java:comp/env");
return (DataSource) envCtx.lookup("jdbc/yourDS");
} catch (Exception e) {
e.printStackTrace();
throw new RuntimeException("Unable to lookup datasource", e);
}
}
private Properties jpaProperties() {
Properties properties = new Properties();
//use whatever EclipseLink properties you like
return properties;
}
}
编辑：
相关的依赖关系是
<properties>
<spring.version>3.2.8.RELEASE</spring.version>
<spring-security.version>3.1.3.RELEASE</spring-security.version>
</properties>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
<exclusions>
<!-- Exclude Commons Logging in favor of SLF4j -->
<exclusion>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-expression</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</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-context-support</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-jpa</artifactId>
<version>1.2.0.RELEASE</version>
<exclusions>
<exclusion>
<artifactId>slf4j-api</artifactId>
<groupId>org.slf4j</groupId>
</exclusion>
<exclusion>
<artifactId>jcl-over-slf4j</artifactId>
<groupId>org.slf4j</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.eclipse.persistence</groupId>
<artifactId>eclipselink</artifactId>
<version>2.5.1</version>
</dependency>
标签：jpa,eclipselink,spring,mysql,spring-mvc 来源： https://codeday.me/bug/20191029/1961811.html