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activiti自己定义流程之自己定义表单(一):环境配置

先补充说一下自己定义流程整个的思路,自己定义流程的目的就是为了让一套代码解决多种业务流程。比方请假单、报销单、採购单、协作单等等。用户自己来设计流程图。




这里要涉及到这样几个基本问题,一是不同的业务需求,流程节点不一样。流程中的任务多少不一样,因此后台就必须解决这个逻辑处理上的问题。要能同一套代码实现动态任务数量的处理。


二是不同的业务各种字段叫法也不一样,各个节点相应的页面也应该不一样。比如请假单就须要请假申请人、请假天数、请假原因等字段,而报销单可能就是报销申请人、报销金额、报销原因、报销凭证等;申请页面要相应填写申请信息的页面,处理也面要相应处理任务的页面。不同业务之间自然也会有差别,因此就须要前台可以自己定义表单,用户自己来设计须要的页面。


三就是如何把后台自己定义和前台的自己定义关联起来正确的交互。




因此,遵循这一思路,我就分成这样三个步骤来着手,之前的学习中就着重攻克了后台逻辑适应不同数量任务的问题。

那么接下来就是第二步。实现前台的自己定义表单,我在工作中并不做前台。因此实现的过程也就是仅仅求功能实现,不求其它。


在自己定义表单中。使用到了ueditor表单设计器插件,
下载:http://formdesign.leipi.org/downloads.html#java
集成插件參考文档: http://formdesign.leipi.org/doc.html
实际上我就是把解压后的文件里的js、css和index.html拿到了我的文件里进行改动使用,我的项目基本结构例如以下图,当中webapp中红线框起来的是自己加的文件文件夹,没有框起来的就是从插件中拿来的:




项目基本环境配置例如以下:
1、 maven导包相关配置文件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>webFormTest</groupId>
  <artifactId>webFormTest</artifactId>
  <packaging>war</packaging>
  <version>0.0.1-SNAPSHOT</version>
  <name>webFormTest Maven Webapp</name>
  <url>http://maven.apache.org</url>
  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.11</version>
    </dependency>
    <dependency>
    	<groupId>org.springframework</groupId>
    	<artifactId>spring-beans</artifactId>
    	<version>4.0.9.RELEASE</version>
    </dependency>
    <dependency>
    	<groupId>org.springframework</groupId>
    	<artifactId>spring-core</artifactId>
    	<version>4.0.9.RELEASE</version>
    </dependency>
    <dependency>
    	<groupId>org.springframework</groupId>
    	<artifactId>spring-aop</artifactId>
    	<version>4.0.9.RELEASE</version>
    </dependency>
    <dependency>
    	<groupId>org.springframework</groupId>
    	<artifactId>spring-context</artifactId>
    	<version>4.0.9.RELEASE</version>
    </dependency>
    <dependency>
    	<groupId>org.springframework</groupId>
    	<artifactId>spring-webmvc</artifactId>
    	<version>4.0.9.RELEASE</version>
    </dependency>
    <dependency>
    	<groupId>org.springframework</groupId>
    	<artifactId>spring-web</artifactId>
    	<version>4.0.9.RELEASE</version>
    </dependency>
    <dependency>
    	<groupId>org.springframework</groupId>
    	<artifactId>spring-aspects</artifactId>
    	<version>4.0.9.RELEASE</version>
    </dependency>
    <dependency>
    	<groupId>org.springframework</groupId>
    	<artifactId>spring-expression</artifactId>
    	<version>4.0.9.RELEASE</version>
    </dependency>
    <dependency>
    	<groupId>org.springframework</groupId>
    	<artifactId>spring-tx</artifactId>
    	<version>4.0.9.RELEASE</version>
    </dependency>
    <dependency>
    	<groupId>javax.servlet</groupId>
    	<artifactId>javax.servlet-api</artifactId>
    	<version>3.1.0</version>
    </dependency>
    <dependency>
    	<groupId>com.fasterxml.jackson.core</groupId>
    	<artifactId>jackson-annotations</artifactId>
    	<version>2.2.3</version>
    </dependency>
    <dependency>
    	<groupId>com.fasterxml.jackson.core</groupId>
    	<artifactId>jackson-core</artifactId>
    	<version>2.2.3</version>
    </dependency>
    <dependency>
    	<groupId>com.fasterxml.jackson.core</groupId>
    	<artifactId>jackson-databind</artifactId>
    	<version>2.2.3</version>
    </dependency>
   
    <dependency>
    	<groupId>org.springframework</groupId>
    	<artifactId>spring-context-support</artifactId>
    	<version>4.0.9.RELEASE</version>
    </dependency>
    <dependency>
    	<groupId>mysql</groupId>
    	<artifactId>mysql-connector-java</artifactId>
    	<version>5.1.34</version>
    </dependency>
    <dependency>
    	<groupId>org.springframework</groupId>
    	<artifactId>spring-jdbc</artifactId>
    	<version>4.0.9.RELEASE</version>
    </dependency>
    <dependency>
    	<groupId>org.springframework</groupId>
    	<artifactId>spring-test</artifactId>
    	<version>4.0.9.RELEASE</version>
    </dependency>
    <dependency>
    	<groupId>org.codehaus.jackson</groupId>
    	<artifactId>jackson-core-asl</artifactId>
    	<version>1.9.11</version>
    </dependency>
    <dependency>
    	<groupId>org.codehaus.jackson</groupId>
    	<artifactId>jackson-mapper-asl</artifactId>
    	<version>1.9.11</version>
    </dependency>
  </dependencies>
  <build>
    <finalName>webFormTest</finalName>
  </build>
</project>




2.web项目基本配置文件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"
	id="WebApp_ID" version="2.5">    
    <filter>
		<description>字符集过滤器</description>
		<filter-name>encodingFilter</filter-name>
		<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
		<init-param>
			<description>字符集编码</description>
			<param-name>encoding</param-name>
			<param-value>UTF-8</param-value>
		</init-param>
	</filter>
	
	<filter-mapping>
		<filter-name>encodingFilter</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>
		
    <servlet>  
        <servlet-name>springMVC</servlet-name>  
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>  
        <init-param>  
            <param-name>contextConfigLocation</param-name>  
            <param-value>classpath:spring.xml</param-value>  
        </init-param>    
    </servlet>  
    <servlet-mapping>  
        <servlet-name>springMVC</servlet-name>  
        <url-pattern>*.do</url-pattern>  
    </servlet-mapping>
    
    <welcome-file-list>
    	<welcome-file>index.html</welcome-file>
    	<welcome-file>index.htm</welcome-file>
    	<welcome-file>index.jsp</welcome-file>
    	<welcome-file>default.html</welcome-file>
    	<welcome-file>default.htm</welcome-file>
    	<welcome-file>default.jsp</welcome-file>
    </welcome-file-list>  
</web-app>  


3.sping相关配置文件:spring.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:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd"> <context:annotation-config /> <mvc:annotation-driven /> <context:component-scan base-package="formControllers" /> <context:component-scan base-package="servicesImp" /> <!-- <bean id="dataSource" class="org.springframework.jdbc.datasource.SimpleDriverDataSource"> <property name="driverClass" value="http://www.mamicode.com/com.mysql.jdbc.Driver"></property> <property name="url" value="http://www.mamicode.com/jdbc:mysql://192.168.0.201:3306/formtest?

useUnicode=true&characterEncoding=utf8" ></property> <property name="username" value="http://www.mamicode.com/root" ></property> <property name="password" value="http://www.mamicode.com/123456" ></property> </bean> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource"></property> </bean> --> <!-- 避免IE运行AJAX时,返回JSON出现下载文件 --> <bean id="mappingJacksonHttpMessageConverter" class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"> <property name="supportedMediaTypes"> <list> <value>text/html;charset=utf-8</value> </list> </property> </bean> <!-- 启动Spring MVC的注解功能,完毕请求和注解POJO的映射 --> <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"> <property name="messageConverters"> <list> <ref bean="mappingJacksonHttpMessageConverter" /><!-- json转换器 --> </list> </property> </bean> </beans>



activiti自己定义流程之自己定义表单(一):环境配置