ssh整合示例

一.搭建项目骨架

整合项目采用父子工程，由三个子模块构成，分别是，表现层maven_web,业务层maven_service,dao层maven_dao，三个子模块继承一个父项目maven_ssh，下面展示的是项目的基本构成，可以一开始就搭建好整体的骨架，再完善填充细节，也可以一个一个模块的来，一般先从dao层开始，dao层属于底层构成，service ，web都需要依赖dao

二.构建父项目，并配置pom文件

配置父类pom.xml依赖，锁定ssh的版本号，配置tomcat7插件

1. <?xml version="1.0" encoding="UTF-8"?>

2. <project xmlns="http://maven.apache.org/POM/4.0.0"

3. xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

4. xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">

5. <modelVersion>4.0.0</modelVersion>

6.  

7. <groupId>com.itheima</groupId>

8. <artifactId>maven_ssh</artifactId>

9. <packaging>pom</packaging>

10. <version>1.0-SNAPSHOT</version>

11. <modules>

12. <module>maven_dao</module>

13. <module>maven_service</module>

14. <module>maven_web</module>

15. </modules>

16.  

17. <!-- 属性 -->

18. <properties>

19. <spring.version>4.2.4.RELEASE</spring.version>

20. <hibernate.version>5.0.7.Final</hibernate.version>

21. <struts.version>2.3.24</struts.version>

22. </properties>

23.  

24. <!-- 锁定版本，struts2-2.3.24、spring4.2.4、hibernate5.0.7 -->

25. <dependencyManagement>

26. <dependencies>

27. <dependency>

28. <groupId>org.springframework</groupId>

29. <artifactId>spring-context</artifactId>

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

31. </dependency>

32. <dependency>

33. <groupId>org.springframework</groupId>

34. <artifactId>spring-aspects</artifactId>

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

36. </dependency>

37. <dependency>

38. <groupId>org.springframework</groupId>

39. <artifactId>spring-orm</artifactId>

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

41. </dependency>

42. <dependency>

43. <groupId>org.springframework</groupId>

44. <artifactId>spring-test</artifactId>

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

46. </dependency>

47. <dependency>

48. <groupId>org.springframework</groupId>

49. <artifactId>spring-web</artifactId>

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

51. </dependency>

52. <dependency>

53. <groupId>org.hibernate</groupId>

54. <artifactId>hibernate-core</artifactId>

55. <version>${hibernate.version}</version>

56. </dependency>

57. <dependency>

58. <groupId>org.apache.struts</groupId>

59. <artifactId>struts2-core</artifactId>

60. <version>${struts.version}</version>

61. </dependency>

62. <dependency>

63. <groupId>org.apache.struts</groupId>

64. <artifactId>struts2-spring-plugin</artifactId>

65. <version>${struts.version}</version>

66. </dependency>

67. </dependencies>

68. </dependencyManagement>

69. <!-- 依赖管理 -->

70. <dependencies>

71. <!-- spring -->

72. <dependency>

73. <groupId>org.springframework</groupId>

74. <artifactId>spring-context</artifactId>

75. </dependency>

76. <dependency>

77. <groupId>org.springframework</groupId>

78. <artifactId>spring-aspects</artifactId>

79. </dependency>

80. <dependency>

81. <groupId>org.springframework</groupId>

82. <artifactId>spring-orm</artifactId>

83. </dependency>

84. <dependency>

85. <groupId>org.springframework</groupId>

86. <artifactId>spring-test</artifactId>

87. </dependency>

88. <dependency>

89. <groupId>org.springframework</groupId>

90. <artifactId>spring-web</artifactId>

91. </dependency>

92. <!-- hibernate -->

93. <dependency>

94. <groupId>org.hibernate</groupId>

95. <artifactId>hibernate-core</artifactId>

96. </dependency>

97.  

98. <!-- 数据库驱动 -->

99. <dependency>

100. <groupId>mysql</groupId>

101. <artifactId>mysql-connector-java</artifactId>

102. <version>5.1.6</version>

103. <scope>runtime</scope>

104. </dependency>

105. <!-- c3p0 -->

106.  

107. <dependency>

108. <groupId>c3p0</groupId>

109. <artifactId>c3p0</artifactId>

110. <version>0.9.1.2</version>

111. </dependency>

112.  
113.  

114. <!-- 导入 struts2 -->

115. <dependency>

116. <groupId>org.apache.struts</groupId>

117. <artifactId>struts2-core</artifactId>

118. </dependency>

119. <dependency>

120. <groupId>org.apache.struts</groupId>

121. <artifactId>struts2-spring-plugin</artifactId>

122. </dependency>

123.  

124. <!-- servlet jsp -->

125. <dependency>

126. <groupId>javax.servlet</groupId>

127. <artifactId>servlet-api</artifactId>

128. <version>2.5</version>

129. <scope>provided</scope>

130. </dependency>

131. <dependency>

132. <groupId>javax.servlet</groupId>

133. <artifactId>jsp-api</artifactId>

134. <version>2.0</version>

135. <scope>provided</scope>

136. </dependency>

137. <!-- 日志 -->

138. <dependency>

139. <groupId>org.slf4j</groupId>

140. <artifactId>slf4j-log4j12</artifactId>

141. <version>1.7.2</version>

142. </dependency>

143.  

144. <!-- jstl -->

145. <dependency>

146. <groupId>javax.servlet</groupId>

147. <artifactId>jstl</artifactId>

148. <version>1.2</version>

149. </dependency>

150. </dependencies>

151. <build>

152. <plugins>

153. <plugin>

154. <groupId>org.apache.tomcat.maven</groupId>

155. <artifactId>tomcat7-maven-plugin</artifactId>

156. <version>2.2</version>

157. </plugin>

158. </plugins>

159. </build>

160. </project>

提示导入，直接选auto，自动导入

三、构建dao层子模块，mave_dao

选择父类工程，鼠标右键，选择new --model,dao层，service层的构建不需要勾选create form achetype(通过骨架生成)，web层可以勾选

生成maven_dao，可以从maven_dao的pom看到继承关系

接下来完善相关的类和配置文件，类放在java文件夹，配置文件放在resources文件夹，

包：com.it.dao---接口：CustomerDao

包：com.it.dao.impl--实现类：CustomerDaoImpl

包：com.it.daomian--Customer实体类

1. package com.it.dao;

2.  

3. import com.it.daomain.Customer;

4.  

5. public interface CustomerDao {

6. Customer findById(Long id);

7. }

1. package com.it.dao.impl;

2.  

3. import com.it.dao.CustomerDao;

4. import com.it.daomain.Customer;

5. import org.hibernate.SessionFactory;

6. import org.springframework.orm.hibernate5.support.HibernateDaoSupport;

7.  

8. public class CustomerDaoImpl extends HibernateDaoSupport implements CustomerDao {

9. public void setS(SessionFactory sessionFactory){

10. this.setSessionFactory(sessionFactory);

11. }

12. public Customer findById(Long id) {

13. Customer customer = this.getHibernateTemplate().get(Customer.class, id);

14. return customer;

15. }

16. }

package com.it.daomain;

public class Customer {
    private Long id;
    private String name;
    private String password;

    public Long getId() {
        return id;
    }

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

    public String getName() {
        return name;
    }

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

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    @Override
    public String toString() {
        return "Customer{" +
                "id=" + id +
                ", name='" + name + '\'' +
                ", password='" + password + '\'' +
                '}';
    }
}

配置文件，因为将hibernate的配置文件整合到了spring配置文件中，只保留了实体类的映射文件

Customer.hbm.xml

 

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE hibernate-mapping PUBLIC
        "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
        "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
    <class name="com.it.daomain.Customer" table="customer">
        <id name="id">
            <generator class="native"></generator>
        </id>
        <property name="name"/>
        <property name="password"/>
    </class>
</hibernate-mapping>

因为模块整合，dao ,service,web分别配置自己的spring配置文件，

applicationContext.dao.xml

注意：引入heibernate映射文件的格式，classpath不能丢，这里只配置和dao层相关的连接池，sessionfactory,hibernate模板

 

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xsi:schemaLocation="
       http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
       http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
       http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
       http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="com.mysql.jdbc.Driver"></property>
        <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/maven-ssh"></property>
        <property name="user" value="root"></property>
        <property name="password" value="123"></property>
        <property name="checkoutTimeout" value="3000"></property>
        <property name="idleConnectionTestPeriod" value="1000"></property>
        <property name="maxPoolSize" value="15"></property>
        <property name="minPoolSize" value="5"></property>
    </bean>
    <!--配饰session工厂-->
    <bean id="sessionFactory" class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">
        <property name="dataSource" ref="dataSource"></property>
        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
                <prop key="hibernate.show_sql">true</prop>
                <prop key="hibernate.format_sql">true</prop>
                <prop key="hibernate.hbm2ddl.auto">update</prop>
            </props>
        </property>
        <property name="mappingLocations" value="classpath:Customer.hbm.xml"></property>
    </bean>
    <!--配置hibernate模板-->
    <bean id="HibernateTemplate" class="org.springframework.orm.hibernate5.HibernateTemplate">
        <property name="sessionFactory" ref="sessionFactory"></property>
    </bean>
    <bean id="customerDao" class="com.it.dao.impl.CustomerDaoImpl">
        <property name="sessionFactory" ref="sessionFactory"></property>
    </bean>
</beans>

四、构建service层模块maven_service

service层需要依赖dao层，我们需要在1.service模块的pom中引入dao层模块,还需要在applicationContext.service.xml里面导入applicationContext.dao.xml，同时需要在spring配置文件里面配置事务管理，并开启事务注解，这个项目里面只涉及数据的查找，因为没有用到事务管理

 

<?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/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <parent>
        <artifactId>maven_ssh</artifactId>
        <groupId>com.itheima</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>maven_service</artifactId>
    <dependencies>
        <dependency>
            <groupId>com.itheima</groupId>
            <artifactId>maven_dao</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
    </dependencies>

</project>

接下来完善service层的java类和spring配置文件

包：com.it.service--接口：CustomerService

包：com.it.service.impl--实现类：CustomerServiceImpl

 

package com.it.service;

import com.it.daomain.Customer;

public interface CustomerService {
    Customer findById(Long id);
}

package com.it.service.impl;

import com.it.dao.CustomerDao;
import com.it.daomain.Customer;
import com.it.service.CustomerService;

public class CustomerServiceImpl implements CustomerService {
    private CustomerDao customerDao;

    public void setCustomerDao(CustomerDao customerDao) {
        this.customerDao = customerDao;
    }

    public Customer findById(Long id) {
        Customer customer = customerDao.findById(id);
        return customer;
    }
}

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xsi:schemaLocation="
       http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
       http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
       http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
       http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
    <import resource="applicationContext.dao.xml"></import>
    <bean id="transactionManager" class="org.springframework.orm.hibernate5.HibernateTransactionManager">
        <property name="sessionFactory" ref="sessionFactory"></property>
    </bean>
    <tx:annotation-driven transaction-manager="transactionManager"></tx:annotation-driven>
    <bean id="customerService" class="com.it.service.impl.CustomerServiceImpl">
        <property name="customerDao" ref="customerDao"></property>
    </bean>
</beans>

五、构建web层子模块maven_web,这一层需要依赖service和dao层，但是service层已经导入了dao层依赖，通过依赖传递，web层只需要导入service的依赖就行了，构建web层，我们需要勾选web骨架

pom文件

 

<?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/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <parent>
        <artifactId>maven_ssh</artifactId>
        <groupId>com.itheima</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>maven_web</artifactId>
    <packaging>war</packaging>


    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <maven.compiler.source>1.7</maven.compiler.source>
        <maven.compiler.target>1.7</maven.compiler.target>
    </properties>

    <dependencies>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.11</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>com.itheima</groupId>
            <artifactId>maven_service</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
    </dependencies>

</project>

 

这里需要注意一下，idea不会为你自动生成java,resources的文件夹，需要我们自己手动添加，并设置，像这样

新建一个java文件夹，然后选中右键--底部mark direrctory as --sources root

新建一个resources文件夹，然后鼠标右键----底部mark direrctory as --resources root

接下类完善java类和配置文件，并在pom.文件中导入service层，在applicationContext.web.xml里引入applicationContext.service.xml

包：com.it.action--struts2的acton类--CustomerAction

aplicationContext.web.xml

struts.xml

 

package com.it.action;

import com.it.daomain.Customer;
import com.it.service.CustomerService;
import com.opensymphony.xwork2.ActionSupport;

public class CustomerAction extends ActionSupport {
    private Customer customer;
    private Long id;


    public Long getId() {
        return id;
    }

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

    public Customer getCustomer() {
        return customer;
    }

    public void setCustomer(Customer customer) {
        this.customer = customer;
    }

    private CustomerService customerService;

    public void setCustomerService(CustomerService customerService) {
        this.customerService = customerService;
    }

    public String find(){
        customer = customerService.findById(id);
        return SUCCESS;
    }
}

 

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xsi:schemaLocation="
       http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
       http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
       http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
       http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
   <import resource="applicationContext.service.xml"></import>
    <bean id="customerAction" class="com.it.action.CustomerAction" scope="prototype">
        <property name="customerService" ref="customerService"></property>
    </bean>
</beans>

 

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE struts PUBLIC
        "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
        "http://struts.apache.org/dtds/struts-2.3.dtd">

<struts>
    <constant name="struts.devMode" value="true"></constant>
    <package name="maven_ssh" extends="struts-default" namespace="/">
        <action name="find" class="customerAction" method="find">
            <result name="success">success.jsp</result>
        </action>
    </package>
</struts>

到这里差不多大功告成了，但是我们还缺了一样非常重要的东西，web.xml还需要配置，前端的jsp显示页面也需要写一下

这里需要注意：需要配置参数，指明配置文件的加载路径，这里只需要

applicationContext.web.xml，这里面已经导入了dao层，service层的配置文件

 

<context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:applicationContext.web.xml</param-value>
    </context-param>

 

 

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
         version="4.0">
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:applicationContext.web.xml</param-value>
    </context-param>
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>

  <filter>
    <filter-name>struts</filter-name>
    <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
  </filter>
  <filter-mapping>
    <filter-name>struts</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>
</web-app>

jsp页面：这里用到了struts2的el表达式来获取stackValue值栈里的值

 

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
    <title>Title</title>
</head>
<body>
欢迎：${customer.name}
</body>