web中spring与jpa整合

于 2016-07-20 16:00:33 发布
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分类专栏： javaweb
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本文链接：https://blog.youkuaiyun.com/Chenguoyu_sir/article/details/51969308
本文介绍如何通过Maven创建一个支持JPA的WEB工程，包括pom.xml配置、applicationContext.xml设置、web.xml中Spring监听器配置及Jetty环境下的开发与部署。

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1：新建WEB工程，加入Maven的支持。

 

2: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/4.0.0http://maven.apache.org/maven-v4_0_0.xsd">

   <modelVersion>4.0.0</modelVersion>

 

   <groupId>com.dfrz</groupId>

   <artifactId>Jpa_03</artifactId>

   <packaging>war</packaging>

   <name />

   <version>0.0.1</version>

   <description />

   <build>

      <sourceDirectory>${basedir}/src</sourceDirectory>

      <outputDirectory>

         ${basedir}/WebRoot/WEB-INF/classes

      </outputDirectory>

      <resources>

         <resource>

            <directory>${basedir}/src</directory>

            <excludes>

                <exclude>**/*.java</exclude>

            </excludes>

         </resource>

      </resources>

      <plugins>

         <plugin>

            <artifactId>maven-war-plugin</artifactId>

            <configuration>

                <webappDirectory>

                   ${basedir}/WebRoot

                </webappDirectory>

                <warSourceDirectory>

                   ${basedir}/WebRoot

                </warSourceDirectory>

            </configuration>

         </plugin>

         <plugin>

            <artifactId>maven-compiler-plugin</artifactId>

            <configuration>

                <source>1.5</source>

                <target>1.5</target>

            </configuration>

         </plugin>

 

         <!-- jetty的插件 -->

         <plugin>

            <groupId>org.mortbay.jetty</groupId>

            <artifactId>maven-jetty-plugin</artifactId>

            <version>6.1.5</version>

            <configuration>

                <webAppSourceDirectory>

                   WebRoot

                </webAppSourceDirectory>

                <scanIntervalSeconds>5</scanIntervalSeconds>

                <connectors>

                   <connector

                      implementation="org.mortbay.jetty.nio.SelectChannelConnector">

                      <port>8081</port>

                   </connector>

                </connectors>

            </configuration>

         </plugin>

      </plugins>

   </build>

 

   <properties>

      <project.build.sourceEncoding>GBK</project.build.sourceEncoding>

      <spring.version>4.2.6.RELEASE</spring.version>

   </properties>

 

   <dependencies>

      <dependency>

         <groupId>javax.servlet</groupId>

         <artifactId>servlet-api</artifactId>

         <version>2.5</version>

         <scope>provided</scope>

      </dependency>

 

      <dependency>

         <groupId>javax.servlet.jsp</groupId>

         <artifactId>jsp-api</artifactId>

         <version>2.1</version>

         <scope>provided</scope>

      </dependency>

 

      <dependency>

         <groupId>javax.servlet</groupId>

         <artifactId>jstl</artifactId>

         <version>1.2</version>

      </dependency>

 

      <dependency>

         <groupId>com.driver</groupId>

         <artifactId>sqlserver</artifactId>

         <version>2005</version>

      </dependency>

      <dependency>

         <groupId>org.apache.openjpa</groupId>

         <artifactId>openjpa-all</artifactId>

         <version>2.2.0</version>

      </dependency>

      <!-- 引入Spring -->

      <dependency>

         <groupId>org.springframework</groupId>

         <artifactId>spring-context</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-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</groupId>

         <artifactId>spring-aspects</artifactId>

         <version>${spring.version}</version>

         <exclusions>

            <exclusion>

                <artifactId>aspectjweaver</artifactId>

                <groupId>org.aspectj</groupId>

            </exclusion>

         </exclusions>

      </dependency>

 

      <dependency>

         <groupId>org.springframework</groupId>

         <artifactId>spring-instrument</artifactId>

         <version>${spring.version}</version>

      </dependency>

 

      <dependency>

         <groupId>org.springframework</groupId>

         <artifactId>spring-web</artifactId>

         <version>${spring.version}</version>

      </dependency>

   </dependencies>

</project>

 

3:applicationContext.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:context="http://www.springframework.org/schema/context"

   xmlns:tx="http://www.springframework.org/schema/tx"

   xmlns:jdbc="http://www.springframework.org/schema/jdbc"

   xmlns:p="http://www.springframework.org/schema/p"

   xmlns:aop="http://www.springframework.org/schema/aop"

   xsi:schemaLocation="http://www.springframework.org/schema/beans

   http://www.springframework.org/schema/beans/spring-beans-3.1.xsd

   http://www.springframework.org/schema/context

   http://www.springframework.org/schema/context/spring-context-3.1.xsd

    http://www.springframework.org/schema/tx

    http://www.springframework.org/schema/tx/spring-tx-3.1.xsd

    http://www.springframework.org/schema/jdbc

   http://www.springframework.org/schema/jdbc/spring-jdbc-3.1.xsd

   http://www.springframework.org/schema/aophttp://www.springframework.org/schema/aop/spring-aop-3.1.xsd">

 

   <context:annotation-config></context:annotation-config>

   <context:component-scan base-package="com.test"></context:component-scan>

 

 

   <!-- 定义一个数据源 -->

   <bean name="dataSource"

      class="org.springframework.jdbc.datasource.DriverManagerDataSource">

      <property name="driverClassName"

         value="com.microsoft.sqlserver.jdbc.SQLServerDriver">

      </property>

      <property name="url"

         value="jdbc:sqlserver://127.0.0.1:1433;databaseName=Java1503">

      </property>

      <property name="username" value="sa"></property>

      <property name="password" value=""></property>

   </bean>

 

 

   <bean name="entityManagerFactory"

      class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">

      <property name="persistenceProviderClass"

         value="org.apache.openjpa.persistence.PersistenceProviderImpl">

      </property>

      <property name="packagesToScan" value="com.jpa.entity">

      </property>

      <property name="jpaProperties">

         <props>

            <prop key="javax.persistence.jdbc.driver">

                com.microsoft.sqlserver.jdbc.SQLServerDriver

            </prop>

            <prop key="javax.persistence.jdbc.url">

               jdbc:sqlserver://localhost:1433;DatabaseName=java1411;SelectMethod=cursor;

            </prop>

            <prop key="javax.persistence.jdbc.user">sa</prop>

            <prop key="javax.persistence.jdbc.password"></prop>

            <prop key="openjpa.jdbc.SynchronizeMappings">

                buildSchema(ForeignKeys=true)

            </prop>

            <prop key="openjpa.Log">SQL=TRACE</prop>

            <prop key="openjpa.ConnectionFactoryProperties">

                PrettyPrint=true,PrettyPrintLineLength=72

            </prop>

            <!-- 不启用jpa的类增强机制 -->

            <prop key="openjpa.ClassLoadEnhancement">false</prop>

            <prop key="openjpa.DynamicEnhancementAgent">false</prop>

            <prop key="openjpa.RuntimeUnenhancedClasses">

                supported

            </prop>

 

         </props>

      </property>

   </bean>

 

   <bean name="transactionManager"

      class="org.springframework.orm.jpa.JpaTransactionManager">

      <property name="entityManagerFactory"

         ref="entityManagerFactory">

      </property>

   </bean>

   <tx:annotation-driven transaction-manager="transactionManager" />

 

</beans>

4：web.xml配置Spring的监听器

 

   <context-param>

      <param-name>contextConfigLocation</param-name>

      <param-value>classpath:applicationContext.xml</param-value>

   </context-param>

 

   <listener>

      <listener-class>

         org.springframework.web.context.ContextLoaderListener

      </listener-class>

   </listener>

5：在jetty中开发。

 

   jetty开发过程中：内存溢出的解决

  

   在jetty:run的运行对话框的JRE的选项中设置：

  

      -server-XX:PermSize=64M -XX:MaxPermSize=128m

     

     

   jetty中打包

      package

     

   Tomcat中运行测试

     

 

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