没有 Spring Boot 的 Spring Data JPA [英] Spring Data JPA without Spring Boot

问题描述

Spring Boot 不适用于 Google App Engine(至少对我而言不是).

Spring Boot doesn't work with Google App Engine (at least not for me).

无论 GitHub 或其他存储库中编写或可用的大部分示例都使用 Spring Boot，是否有任何不使用 Spring Boot 并使用纯上下文 XML 的 Spring-Data-JPA 示例和以前一样吗?

However much of the examples written or available in the GitHub or other repositories are using Spring Boot, is there any example for Spring-Data-JPA that does not use Spring Boot and use plain context XML as before?

那会显示

推荐答案

刚刚为你创建了这个例子:

Just created this example for you:

src/main/webapp/WEB-INF/spring/context.xml

<?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: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:property-placeholder location="/WEB-INF/spring/jdbc.properties" />

    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
        p:driverClassName="${jdbc.driverClassName}" p:url="${jdbc.url}"
        p:username="${jdbc.username}" p:password="${jdbc.password}" />

    <bean id="hibernateJpaVendorAdapter"
        class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter" />

    <!-- Configure the entity manager factory bean -->
    <bean id="entityManagerFactory"
        class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <property name="jpaVendorAdapter" ref="hibernateJpaVendorAdapter" />
        <!-- Set JPA properties -->
        <property name="jpaProperties">
            <props>
                <prop key="hibernate.dialect">${hibernate.dialect}</prop>
            </props>
        </property>
        <property name="packagesToScan" value="com.demo.data" />
    </bean>

    <!-- Configure the transaction manager bean -->
    <bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
        <property name="entityManagerFactory" ref="entityManagerFactory" />
    </bean>

    <tx:annotation-driven />

    <jpa:repositories base-package="com.demo.data" />
    <context:component-scan base-package="com.demo.svc" />
</beans>

/src/main/webapp/WEB-INF/spring/jdbc.properties

# JDBC Connection
jdbc.driverClassName=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://host:3306/db
jdbc.username=user
jdbc.password=password
hibernate.dialect=org.hibernate.dialect.MySQLDialect

/src/main/webapp/WEB-INF/spring/servlet-context.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans:beans xmlns="http://www.springframework.org/schema/mvc"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:beans="http://www.springframework.org/schema/beans"
    xmlns:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
        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">

    <context:component-scan base-package="com.demo.web" />
</beans:beans>

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
    version="2.5">
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/spring/context.xml</param-value>
    </context-param>
    <context-param>
        <param-name>webAppRootKey</param-name>
        <param-value>demo_jpa</param-value>
    </context-param>

    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    <servlet>
        <servlet-name>appServlet</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>/WEB-INF/spring/servlet-context.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>appServlet</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>
</web-app>

pom.xml

<properties>
    <org.springframework-version>4.1.7.RELEASE</org.springframework-version>
    <org.hibernate-em-version>4.3.8.Final</org.hibernate-em-version>
    <org.springframework.data-version>1.9.0.RELEASE</org.springframework.data-version>
    <dbcp-version>1.4</dbcp-version>
    <mysql-connector-version>5.1.28</mysql-connector-version>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>

<dependencies>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context-support</artifactId>
        <version>${org.springframework-version}</version>
    </dependency>

    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc</artifactId>
        <version>${org.springframework-version}</version>
    </dependency>

    <dependency>
        <groupId>org.springframework.data</groupId>
        <artifactId>spring-data-jpa</artifactId>
        <version>${org.springframework.data-version}</version>
    </dependency>

    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-entitymanager</artifactId>
        <version>${org.hibernate-em-version}</version>
    </dependency>

    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>${mysql-connector-version}</version>
    </dependency>

    <dependency>
        <groupId>commons-dbcp</groupId>
        <artifactId>commons-dbcp</artifactId>
        <version>${dbcp-version}</version>
    </dependency>
</dependencies>

数据实体:com.demo.data.User

package com.demo.data;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;

@Entity
@Table(name = "SYS_USERS")
public class User {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Column(name = "USER_ID")
    private int id;

    @Column(name = "USER_NAME")
    private String name;

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }
}

Spring 数据 JPA 存储库:com.demo.data.UserRepository

package com.demo.data;

import org.springframework.data.repository.CrudRepository;

public interface UserRepository extends CrudRepository<User, Integer> {
}

服务

界面:

package com.demo.svc;

import com.demo.data.User;

public interface UserService {
    User findUserById(Integer id);
}

实施:

package com.demo.svc;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.demo.data.User;
import com.demo.data.UserRepository;

@Service
public class UserServiceImpl implements UserService {
    @Autowired
    UserRepository userRepository;

    public User findUserById(Integer id) {
        return userRepository.findOne(id);
    }
}

网页控制器:com.demo.web.UserController

package com.demo.web;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import com.demo.svc.UserService;

@Controller
public class UserController {
    @Autowired
    UserService svc;

    @RequestMapping("/")
    @ResponseBody
    public String test() {
        return svc.findUserById(1).getName();
    }
}

这篇关于没有 Spring Boot 的 Spring Data JPA的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！