Activiti5工作流框架学习之Struts2+Hibernate+Spring整合配置

ゝ一世哀愁。 2022-08-03 08:37 184阅读 0赞

# 测试环境 #

Windows

STS

Mysql5

Jdk1.8

Tomcat8

Maven3

Struts2 + Spring4 + Hibernate3 + Activiti5.17

# 一、整合Spring与Hibernate3 #

## 配置DataSource ##

application-config.xml内容：

<context:property-placeholder location="classpath:db.properties"/>
    
    
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource" destroy-method="close">
        
        <property name="driverClass" value="${driverClass}"/>
        <property name="jdbcUrl" value="${jdbcUrl}"/>
        <property name="user" value="${user}"/>
        <property name="password" value="${password}"/>
        
        
        <property name="initialPoolSize" value="3"></property>
        
        <property name="minPoolSize" value="3"></property>
        
        <property name="maxPoolSize" value="5"></property>
        
        <property name="acquireIncrement" value="3"></property>
        
        <property name="maxStatements" value="8"></property>
        
        <property name="maxStatementsPerConnection" value="5"></property>
        
        <property name="maxIdleTime" value="1800"></property>
     </bean>

### db.properties配置文件的内容 ###

driverClass=com.mysql.jdbc.Driver
    jdbcUrl=jdbc:mysql://localhost:3306/activiti?autoReconnect=true
    user=root
    password=root

## 配置hibernate3的SessionFactory ##

## 测试SessionFactory ##

// 测试SessionFactory
    @Test
    public void testSessionFactory() throws Exception {
        SessionFactory sessionFactory = (SessionFactory) ctx.getBean("sessionFactory");
        Assert.assertNotNull(sessionFactory.openSession());
        ctx.destroy();
    }

## 配置声明式事务管理（使用基于注解的方式） ##

<tx:annotation-driven transaction-manager="transactionManager"/>
    
    <bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
        <property name="sessionFactory" ref="sessionFactory"/>
    </bean>

## 在web.xml中配置OpenSessionInView ##

Spring 的 OpenSessionInView 过滤器（解决抛LazyInitializationException异常的问题）

<filter>
        <filter-name>OpenSessionInView</filter-name>
        <filter-class>org.springframework.orm.hibernate3.support.OpenSessionInViewFilter</filter-class>
    </filter>
    <filter-mapping>
        <filter-name>OpenSessionInView</filter-name>
        <url-pattern>*.do</url-pattern>
    </filter-mapping>

> LazyInitializationException异常说明
> 
> 1，对于集合属性，默认是lazy=”true”的，在第一次使用时才加载。
> 
> 2，但在加载时，如果Session已经关掉了就会抛LazyInitializationException异常

# 二、整合 Spring 与 Struts2 #

## 在web.xml中配置 ##

<context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:application-config.xml</param-value>
    </context-param>
    
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    
    
    <filter>
    <filter-name>struts2</filter-name>
        <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
    </filter>
    <filter-mapping>
        <filter-name>struts2</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

## 在struts.xml中配置Action ##

<struts>        
        <constant name="struts.action.extension" value="do"></constant>     
    
        <package name="dengfengdecao" namespace="/" extends="struts-default">
    
            <action name="user_*" class="userAction" method="{1}">
                <result name="success">/index.jsp</result>
            </action>
    
        </package>
    </struts>

## 引入struts2-spring-plugin-2.3.20.jar插件 ##

当引入这个插件后，原先所struts创建的action类，交给了spring创建。在struts2-spring-plugin.jar中有一个struts-plugin.xml，里面声明了action类由spring工厂创建。

这个插件重写了struts的对象工厂，当创建一个action类时，它会根据struts的配置文件的class属性的值与spring配置文件中的id属性的值相匹配。如果没有与之想匹配，将会像没有使用这个插件前一样创建，然后由spring自动装配。

> 说明：
> 
> 1，在写Action时要指定 @Controller 与 @Scope(“prototype”)；  
> 2，在struts.xml中配置action时，在class属性中写bean的名称。

## 部署到Tomcat中并访问测试 ##

在pom.xml中添加一下内容

<build>
        
        <finalName>activiti-ssh</finalName>
        <plugins>
            <plugin>
                 
                <groupId>org.codehaus.cargo</groupId>
                <artifactId>cargo-maven2-plugin</artifactId>
                <version>1.4.15</version>
    
                <configuration>
                    <container>
                        <containerId>tomcat8x</containerId>
                        <home>D:/Dev/Tomcat8</home>
                    </container>
                    <configuration>
                        <type>existing</type>
                        <home>D:/Dev/Tomcat8</home>
                    </configuration>
    
                </configuration>
                <executions>
                    <execution>
                        <id>cargo-run</id>
                        <phase>install</phase>
                        <goals>
                            <goal>run</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

在~/.m2/setting.xml 中添加org.codehaus.cargo插件支持

<pluginGroup>org.codehaus.cargo</pluginGroup>

右键pom.xml 》maven install 启动tomcat后，在地址栏输入  
[http://localhost:8080/activiti-ssh][http_localhost_8080_activiti-ssh] 即可访问首页。

# 三、整合Spring与Activiti5 #

## 在activiti-context.xml中配置 ##

<bean id="processEngineConfiguration" class="org.activiti.spring.SpringProcessEngineConfiguration">  
    
      <property name="dataSource" ref="dataSource" />  
      <property name="transactionManager" ref="transactionManager" />  
      <property name="databaseSchemaUpdate" value="true" />  
      <property name="jobExecutorActivate" value="false" />  
    </bean>  
    
      
    <bean id="processEngine" class="org.activiti.spring.ProcessEngineFactoryBean">  
      <property name="processEngineConfiguration" ref="processEngineConfiguration" />  
    </bean>  
    
      
    <bean id="repositoryService" factory-bean="processEngine" factory-method="getRepositoryService" />
    <bean id="runtimeService" factory-bean="processEngine" factory-method="getRuntimeService" />
    <bean id="taskService" factory-bean="processEngine" factory-method="getTaskService" />
    <bean id="formService" factory-bean="processEngine" factory-method="getFormService" />
    <bean id="historyService" factory-bean="processEngine" factory-method="getHistoryService" />
    <bean id="managementService" factory-bean="processEngine" factory-method="getManagementService" />
    <bean id="identityService" factory-bean="processEngine" factory-method="getIdentityService" />

## 在application-config.xml中配置 ##

<import resource="activiti-context.xml"/>

## 测试 ##

// 测试ProcessEngine
    @Test 
    public void testProcessEngine() {
        ProcessEngine processEngine = (ProcessEngine) ac.getBean("processEngine");
        Assert.assertNotNull(processEngine);
    }

# 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/xsd/maven-4.0.0.xsd">
      <modelVersion>4.0.0</modelVersion>
      <groupId>me.dengfengdecao.demo</groupId>
      <artifactId>activiti-ssh</artifactId>
      <version>0.0.1-SNAPSHOT</version>
      <packaging>war</packaging>
    
    <properties>
    
        
        <java.version>1.8</java.version>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
    
        
        <servlet.version>3.1.0</servlet.version>
        <jstl.version>1.2</jstl.version>
    
        
        <activiti.version>5.17.0</activiti.version>
        <activiti-spring.version>5.17.0</activiti-spring.version>
    
        
        <struts2.version>2.3.20</struts2.version>
        
        <struts2-spring.version>2.3.20</struts2-spring.version>
    
        
        <spring-framework.version>4.0.6.RELEASE</spring-framework.version>
    
        
        <hibernate.version>3.6.10.Final</hibernate.version>
    
        
        <c3p0.version>0.9.5.1</c3p0.version>
        <dbcp2.version>2.0</dbcp2.version>
    
        
        <logback.version>1.0.13</logback.version>
        <slf4j.version>1.7.5</slf4j.version>
    
        
        <junit.version>4.11</junit.version>
    
    </properties>
    
    <dependencies>
    
        
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>${servlet.version}</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
            <version>${jstl.version}</version>
            <scope>provided</scope>
        </dependency>
    
        
        <dependency>
            <groupId>org.activiti</groupId>
            <artifactId>activiti-engine</artifactId>
            <version>${activiti.version}</version>
        </dependency>
        <dependency>
            <groupId>org.activiti</groupId>
            <artifactId>activiti-spring</artifactId>
            <version>${activiti-spring.version}</version>
        </dependency>
    
        
        <dependency>
          <groupId>org.apache.struts</groupId>
          <artifactId>struts2-core</artifactId>
          <version>${struts2.version}</version>
        </dependency>
        
        <dependency>
            <groupId>org.apache.struts</groupId>
            <artifactId>struts2-spring-plugin</artifactId>
            <version>${struts2-spring.version}</version>
        </dependency>
        
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>${spring-framework.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-tx</artifactId>
            <version>${spring-framework.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-orm</artifactId>
            <version>${spring-framework.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aop</artifactId>
            <version>${spring-framework.version}</version>
        </dependency>
    
        
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-core</artifactId>
            <version>${hibernate.version}</version>
        </dependency>
    
        
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.36</version>
        </dependency>
    
        
        
        <dependency>
            <groupId>com.mchange</groupId>
            <artifactId>c3p0</artifactId>
            <version>${c3p0.version}</version>
        </dependency>       
        
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-dbcp2</artifactId>
            <version>${dbcp2.version}</version>
        </dependency>
    
        
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>${slf4j.version}</version>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>ch.qos.logback</groupId>
            <artifactId>logback-classic</artifactId>
            <version>${logback.version}</version>
            <scope>runtime</scope>
        </dependency>
    
        
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>${spring-framework.version}</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>${junit.version}</version>
            <scope>test</scope>
        </dependency>
    
    </dependencies> 
    
    
    <build>
        
        <finalName>activiti-ssh</finalName>
        <plugins>
            <plugin>
                 
                <groupId>org.codehaus.cargo</groupId>
                <artifactId>cargo-maven2-plugin</artifactId>
                <version>1.4.15</version>
    
                <configuration>
                    <container>
                        <containerId>tomcat8x</containerId>
                        <home>D:/Dev/Tomcat8</home>
                    </container>
                    <configuration>
                        <type>existing</type>
                        <home>D:/Dev/Tomcat8</home>
                    </configuration>
    
                </configuration>
                <executions>
                    <execution>
                        <id>cargo-run</id>
                        <phase>install</phase>
                        <goals>
                            <goal>run</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>
    
    </project>

最后挂上Demo地址：[http://download.csdn.net/detail/u011726984/8956879][http_download.csdn.net_detail_u011726984_8956879]

**欢迎转载**

[http_localhost_8080_activiti-ssh]: http://localhost:8080/activiti-ssh
[http_download.csdn.net_detail_u011726984_8956879]: http://download.csdn.net/detail/u011726984/8956879