spring mvc + maven + activiti

本文档详细介绍了如何从头开始创建一个基于Maven的Spring MVC项目,并集成Activiti工作流引擎。首先,通过新建Maven项目设置Group ID和Artifact ID。接着,配置项目的Java Build Path和Project Facets,确保支持Web应用。然后,在pom.xml中添加必要的依赖。接着,配置web.xml和spring-servlet.xml文件,导入Activiti的相关配置。最后,创建activiti-context.xml文件,包含数据库连接配置,并将其引入到Spring上下文。完成这些步骤后,项目已准备好进行Activiti的相关测试。

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1.新建maven项目

在弹出的new面板中选择maven project

 

选择maven-webapp项目后,点击next

录入Group id 和artifact Id 后点击finished



2. 配置web项目环境

点击项目-右键-点击properties,弹出框更改选择如下,修改完成后点击apply保存修改:

A. 选择Java Build Path

B 选择 Java Compiler,修改如下

C.选择Project Facets,修改如下:

点击上图“4”处,若没有可取消Dynamic web module 点击apply后再次勾选,即可出现4处

由于maven-webapp项目中根目录为src/main/webapp中,则修改如下:


3. pom.xml添加需要引入的包

<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>com.activiti</groupId>
	<artifactId>activiti-spring</artifactId>
	<packaging>war</packaging>
	<version>0.0.1-SNAPSHOT</version>
	<name>activiti-spring Maven Webapp</name>
	<url>http://maven.apache.org</url>

	<properties>
		<springVersion>4.1.2.RELEASE</springVersion>
		<activitiVersion>5.22.0</activitiVersion>
		<logback.version>1.1.7</logback.version>
		<slf4j.version>1.7.21</slf4j.version>
	</properties>

	<dependencies>
		<dependency>
			<groupId>junit</groupId>
			<artifactId>junit</artifactId>
			<version>4.12</version>
			<scope>test</scope>
		</dependency>
		<!-- servlet start -->
		<dependency>
			<groupId>javax.servlet</groupId>
			<artifactId>javax.servlet-api</artifactId>
			<version>3.0.1</version>
			<scope>compile</scope>
		</dependency>
		<dependency>
			<groupId>javax.servlet</groupId>
			<artifactId>jstl</artifactId>
			<version>1.2</version>
		</dependency>
		<!-- servlet end -->

		<!--spring start -->
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-web</artifactId>
			<version>${springVersion}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-webmvc</artifactId>
			<version>${springVersion}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-test</artifactId>
			<version>${springVersion}</version>
		</dependency>
		<!--spring end -->

		<!-- mysql start -->
		<dependency>
			<groupId>mysql</groupId>
			<artifactId>mysql-connector-java</artifactId>
			<version>5.1.41</version>
		</dependency>
		<!-- mysql end -->

		<!-- taglib start -->
		<dependency>
			<groupId>taglibs</groupId>
			<artifactId>standard</artifactId>
			<version>1.1.2</version>
		</dependency>
		<!-- taglib end -->

		<!-- commons start -->
		<dependency>
			<groupId>commons-fileupload</groupId>
			<artifactId>commons-fileupload</artifactId>
			<version>1.3.1</version>
		</dependency>
		<!-- commons end -->

		<!-- activiti start -->
		<dependency>
			<groupId>org.activiti</groupId>
			<artifactId>activiti-spring</artifactId>
			<version>${activitiVersion}</version>
		</dependency>
		<dependency>
			<groupId>org.activiti</groupId>
			<artifactId>activiti-engine</artifactId>
			<version>${activitiVersion}</version>
		</dependency>
		<!-- activiti end -->

		<!-- logback start -->
		<dependency>
			<groupId>org.slf4j</groupId>
			<artifactId>slf4j-api</artifactId>
			<version>${slf4j.version}</version>
			<scope>compile</scope>
		</dependency>
		<dependency>
			<groupId>ch.qos.logback</groupId>
			<artifactId>logback-core</artifactId>
			<version>${logback.version}</version>
		</dependency>
		<dependency>
			<groupId>ch.qos.logback</groupId>
			<artifactId>logback-classic</artifactId>
			<version>${logback.version}</version>
		</dependency>
		<!-- logback end -->
	</dependencies>
	<build>
		<finalName>activiti-spring</finalName>
		<plugins>
			<plugin>
				<artifactId>maven-compiler-plugin</artifactId>
				<configuration>
					<source>1.7</source>
					<target>1.7</target>
				</configuration>
			</plugin>
		</plugins>
	</build>
</project>

4. 配置文件修改

 A. 修改web.xml,修改内容如下,红色部分为你的spring-servlet.xml路径:

<?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_3_0.xsd"
	version="3.0">
	
	<servlet>
		<servlet-name>spring</servlet-name>
		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
		<init-param>  
            <param-name>contextConfigLocation</param-name>  
            <param-value>classpath:spring-servlet.xml</param-value>
        </init-param>
	</servlet>
	<servlet-mapping>
		<servlet-name>spring</servlet-name>
		<url-pattern>/</url-pattern>
	</servlet-mapping>
	
	<filter>  
        <filter-name>characterEncodingFilter</filter-name>  
        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>  
        <init-param>  
            <param-name>encoding</param-name>  
            <param-value>UTF-8</param-value>  
        </init-param>  
        <init-param>  
            <param-name>forceEncoding</param-name>  
            <param-value>true</param-value>  
        </init-param>  
    </filter>  
    <filter-mapping>  
        <filter-name>characterEncodingFilter</filter-name>  
        <url-pattern>/*</url-pattern>  
    </filter-mapping>

	<welcome-file-list>
		<welcome-file>index.jsp</welcome-file>
	</welcome-file-list>
</web-app>

 B. 新建spring-servlet.xml文件,存放在resources资源文件夹下

spring-servlet.xml文件内容如下

<?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:mvc="http://www.springframework.org/schema/mvc"
	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/mvc
        http://www.springframework.org/schema/mvc/spring-mvc.xsd">

	<!-- 配置扫描的包 -->
	<context:component-scan base-package="com.activiti.*" />

	<!-- 注册HandlerMapper、HandlerAdapter两个映射类 -->
	<mvc:annotation-driven />

	<!-- 访问静态资源 -->
	<mvc:default-servlet-handler />

	<!-- 视图解析器 -->
	<bean
		class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<property name="prefix" value="/view/"></property>
		<property name="suffix" value=".jsp"></property>
	</bean>
	
	<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
    	 <!-- 请求编码格式 -->
    	 <property name="defaultEncoding" value="utf-8"></property>
    	 <!-- 上传文件大小(单位:字节) -->
         <property name="maxUploadSize" value="50000000"></property>
         <!-- 缓冲区大小(单位:KB) -->
         <property name="maxInMemorySize" value="1024"></property>
    </bean>

</beans>

到此为止,一个maven的spring mvc项目已搭建完毕,下面添加activiti相应内容:

5. 新建控制activiti注入的xml文件

 A. 在resources资源文件夹下新建 activiti-context.xml,内容如下

<?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:jee="http://www.springframework.org/schema/jee"
	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.1.xsd
       http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.1.xsd
       http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.1.xsd
       http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-4.1.xsd">
	
	<context:property-placeholder location="classpath:jdbc.properties"/>
	<!-- 创建数据源 -->
	<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
		<property name="driverClassName" value="${driver}">
		</property>
		<property name="url" value="${jdbcUrl}"></property>
		<property name="username" value="${user}"></property>
		<property name="password" value="${password}"></property>
	</bean>
	<!-- 定义事务管理,并注入数据源 -->
	<bean id="transactionManager"
		class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
		<property name="dataSource" ref="dataSource" />
	</bean>
	<!-- 注解方式配置事务 -->
	<tx:annotation-driven transaction-manager="transactionManager" />
	<!-- 定义基于spring 的引擎配置对象 -->
	<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>
	<!-- 配置引擎工厂bean -->
	<bean id="processEngine" class="org.activiti.spring.ProcessEngineFactoryBean" destroy-method="destroy">
		<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="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" />
	<bean id="formService" factory-bean="processEngine"
		factory-method="getFormService" />
</beans>

其中jdbc.properties为数据库连接相应配置文件,存放于resources文件下,内容如下:

driver = com.mysql.jdbc.Driver
jdbcUrl = jdbc:mysql://localhost/activiti?characterEncoding=utf8&zeroDateTimeBehavior=convertToNull
user = root
password =root
devMode = true

 B. 将activiti配置文件导入spring-servlet.xml,在spring-servlet.xml文件中添加:

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

6. 测试

编写测试类

package com.activiti.test;
import java.util.HashMap;
import java.util.Map;

import org.activiti.engine.IdentityService;
import org.activiti.engine.RepositoryService;
import org.activiti.engine.RuntimeService;
import org.activiti.engine.TaskService;
import org.activiti.engine.runtime.ProcessInstance;
import org.activiti.engine.task.Task;
import org.activiti.engine.test.Deployment;
import org.activiti.spring.ProcessEngineFactoryBean;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

import com.activiti.test.listener.ProcessEndListener;
import com.activiti.test.listener.TaskAssigneeListener;

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration("classpath:activiti-context.xml")
public class CreateEngineUseSpringProxy{
	@Autowired
	ProcessEngineFactoryBean factoryBean;
	@Autowired
	RepositoryService repositoryService;
	@Autowired
	IdentityService identityService;
	@Autowired
	RuntimeService runtimeService;
	@Autowired
	TaskService taskService;
	@Test
	public void activitiTest(){
		System.out.println(factoryBean!=null);
	}
}
运行得到结果为true,则证明activiti引擎工厂注入成功,框架搭建完成!

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