Maven搭建SSH环境

2023-08-13 15:29:52

一、新建maven项目

选中maven-aechetype-webapp

group Id一般为公司域；Artifact Id相当于项目名称；version不需要更改；Package不使用默认，手动清空

Finish

项目结构如图报错是因为没有加入servlet API 暂时不用管。

二、配置pom.xml

  1　　　　<properties>

          <!-- 文件拷贝编码 -->

         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

         <!-- 输出编码 -->

         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>

         <!-- 编译编码 -->

         <maven.compiler.encoding>UTF-8</maven.compiler.encoding>

  8　　　　</properties>

       <dependencies>

         <!-- log4j 日志 -->

         <dependency>

             <groupId>log4j</groupId>

             <artifactId>log4j</artifactId>

             <version>1.2.17</version>

         </dependency>

         <!-- servlet API -->

         <dependency>

             <groupId>javax.servlet</groupId>

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

             <version>3.1-b09</version>

             <scope>provided</scope>

         </dependency>

         <!-- MySQL驱动 -->

         <dependency>

             <groupId>mysql</groupId>

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

             <version>5.1.24</version>

         </dependency>

         <!-- mchange C3P0 数据源 -->

         <dependency>

             <groupId>com.mchange</groupId>

             <artifactId>c3p0</artifactId>

             <version>0.9.5-pre2</version>

         </dependency>

         <!-- junit -->

         <dependency>

             <groupId>junit</groupId>

             <artifactId>junit</artifactId>

             <version>4.11</version>

             <scope>test</scope>

         </dependency>

         <!-- fastjson -->

         <dependency>

             <groupId>com.alibaba</groupId>

             <artifactId>fastjson</artifactId>

             <version>1.1.29</version>

         </dependency>

         <!-- sf.json -->

         <dependency>

             <groupId>net.sf.json-lib</groupId>

             <artifactId>json-lib</artifactId>

             <version>2.4</version>

             <classifier>jdk15</classifier><!--指定jdk版本 -->

         </dependency>

         <!-- struts2 -->

         <dependency>

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

             <artifactId>struts2-core</artifactId>

             <version>2.3.14</version>

             <exclusions>

                 <exclusion>

                     <groupId>javassist</groupId>

                     <artifactId>javassist</artifactId>

                 </exclusion>

             </exclusions>

         </dependency>

         <dependency>

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

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

             <version>2.3.14</version>

         </dependency>

         <dependency>

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

             <artifactId>struts2-convention-plugin</artifactId>

             <version>2.3.14</version>

         </dependency>

         <!-- spring -->

         <dependency>

             <groupId>org.springframework</groupId>

             <artifactId>spring-core</artifactId>

             <version>3.2.2.RELEASE</version>

         </dependency>

         <dependency>

             <groupId>org.springframework</groupId>

             <artifactId>spring-context</artifactId>

             <version>3.2.2.RELEASE</version>

         </dependency>

         <dependency>

             <groupId>org.springframework</groupId>

             <artifactId>spring-context-support</artifactId>

             <version>3.2.2.RELEASE</version>

         </dependency>

         <dependency>

             <groupId>org.springframework</groupId>

             <artifactId>spring-jdbc</artifactId>

             <version>3.2.2.RELEASE</version>

         </dependency>

         <dependency>

             <groupId>org.springframework</groupId>

             <artifactId>spring-beans</artifactId>

             <version>3.2.2.RELEASE</version>

         </dependency>

         <dependency>

             <groupId>org.springframework</groupId>

             <artifactId>spring-web</artifactId>

             <version>3.2.2.RELEASE</version>

         </dependency>

         <dependency>

             <groupId>org.springframework</groupId>

             <artifactId>spring-expression</artifactId>

             <version>3.2.2.RELEASE</version>

         </dependency>

         <dependency>

             <groupId>org.springframework</groupId>

             <artifactId>spring-orm</artifactId>

             <version>3.2.2.RELEASE</version>

         </dependency>

         <!-- aspectjweaver -->

         <dependency>

             <groupId>org.aspectj</groupId>

             <artifactId>aspectjweaver</artifactId>

             <version>1.7.2</version>

         </dependency>

         <!-- hibernate -->

         <dependency>

             <groupId>org.hibernate</groupId>

             <artifactId>hibernate-core</artifactId>

             <version>4.2.0.Final</version>

         </dependency>

     </dependencies>

保存，Maven会自动联网去下载所有需要的jar包，只写jar的名字，不用记住，只要去Maven*仓库去搜索，Maven*仓库地址：http://search.maven.org/完成之后，多了很多jar，并且都放到了配置的本地仓库中，以后要再使用相同版本的jar时候，就不需要联网下载了。

三、修改项目结构

因为构建的MSSH项目的结构并不是一个标准的Maven结构，我们需要手动新建几个Source Folder

这是标准的maven项目结构

src/main/java:存放java源文件

src/main/resources:存放项目配置文件，如spring.xml,hibernate.cfg.xml。。。

src/test/java:存放test的java文件

src/test/resources:存放test时候所需的配置文件

配置Source Folder的output folder

同步项目的jdk版本

设置web.xml的路径

further configuration available若没有出现可以先去掉dynamic web module的勾 apply之后再打上勾就会出现此选项设置路径为src/main/webapp

四、编写配置文件

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" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" version="3.0">

   <display-name></display-name>

   <!-- Spring ApplicationContext配置文件的路径,可使用通配符,多个路径用,号分隔 此参数用于后面的Spring Context

         Loader -->

   <context-param>

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

     <param-value>classpath:spring.xml,classpath:spring-hibernate.xml</param-value>

   </context-param>

   <!-- spring 监听器 -->

   <listener>

     <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>

   </listener>

   <!-- Filter 定义 -->

   <!-- Character Encoding filter -->

   <filter>

     <filter-name>encodingFilter</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>

   </filter>

   <filter-mapping>

     <filter-name>encodingFilter</filter-name>

     <url-pattern>/*</url-pattern>

   </filter-mapping>

   <!--Hibernate的session丢失解决方法 -->

   <filter>

     <filter-name>openSessionInView</filter-name>

     <filter-class>org.springframework.orm.hibernate4.support.OpenSessionInViewFilter</filter-class>

   </filter>

   <filter-mapping>

     <filter-name>openSessionInView</filter-name>

     <url-pattern>/*</url-pattern>

   </filter-mapping>

   <!-- struts2 filter -->

   <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>

   <welcome-file-list>

     <welcome-file>login.jsp</welcome-file>

   </welcome-file-list>

 </web-app>

database.properties

hibernate.dialect=org.hibernate.dialect.MySQLDialect

driverClassName=com.mysql.jdbc.Driver

validationQuery=SELECT 1

url=jdbc:mysql://localhost:3306/mssh?useUnicode=true&characterEncoding=UTF-8

username=root

password=root

hibernate.hbm2ddl.auto=update

hibernate.show_sql=true

hibernate.format_sql=false

spring.xml

扫描com.shi包下的文件

<?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"

    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

    ">

    <!-- 引入属性文件 -->

    <context:property-placeholder location="classpath:database.properties" />

    <!-- 自动扫描dao和service包(自动注入) -->

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

</beans>

spring-hibernate.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:tx="http://www.springframework.org/schema/tx"

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

    xsi:schemaLocation="

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

    http://www.springframework.org/schema/beans/spring-beans-3.0.xsd

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

    http://www.springframework.org/schema/tx/spring-tx-3.0.xsd

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

    http://www.springframework.org/schema/aop/spring-aop-3.0.xsd

    ">

    <!-- 使用C3P0数据源，MySQL数据库 -->

    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"

        destroy-method="close">

        <!-- MySQL5 -->

        <property name="driverClass" value="${driverClassName}"></property>

        <property name="jdbcUrl" value="${url}"></property>

        <property name="user" value="${username}"></property>

        <property name="password" value="${password}"></property>

        <property name="maxPoolSize" value="40"></property>

        <property name="minPoolSize" value="1"></property>

        <property name="initialPoolSize" value="1"></property>

        <property name="maxIdleTime" value="20"></property>

    </bean>

    <!-- session工厂 -->

    <bean id="sessionFactory"

        class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">

        <property name="dataSource" ref="dataSource" />

        <property name="packagesToScan" value="com.shi.*.entity" />

        <property name="hibernateProperties">

            <props>

                <prop key="hibernate.hbm2ddl.auto">${hibernate.hbm2ddl.auto}</prop>

                <prop key="hibernate.dialect">${hibernate.dialect}</prop>

                <prop key="hibernate.show_sql">${hibernate.show_sql}</prop>

                <prop key="hibernate.format_sql">${hibernate.format_sql}</prop>

            </props>

        </property>

    </bean>

    <!-- 配置事务 -->

    <bean name="txManager"

        class="org.springframework.orm.hibernate4.HibernateTransactionManager">

        <property name="sessionFactory" ref="sessionFactory"></property>

    </bean>

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

</beans>

struts.xml

使用零配置，扫描com.shi包下的文件

<?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>

    <!-- 将Action交给spring容器管理 -->

    <constant name="struts.objectFactory" value="spring" />

    <!-- 零配置 -->

    <constant name="struts.convention.package.locators" value="shi" />

    <constant name="struts.convention.package.locators.basePackage" value="com" />

    <!-- 模式为开发模式，修改xml配置文件会自动加载，项目交付的时候设置为false,以免影响性能 -->

    <constant name="struts.devMode" value="true" />

    <constant name="struts.configuration.xml.reload" value="true" />

    <!-- 字符集编码 -->

    <constant name="struts.i18n.encoding" value="utf-8" />

    <package name="defaultPackage" namespace="/" extends="struts-default">

    </package>

</struts>

五、使用

@Entity

@Table(name = "DAE_USER")

public class User extends ObjectEntity{

    private static final long serialVersionUID = 1L;

    private String name;

    private String password;

    private List<Role> roleList = new ArrayList<Role>();

    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;

    }

    // 多对多定义

    @ManyToMany(fetch = FetchType.LAZY)

    @JoinTable(name = "DAE_USER_ROLE", joinColumns = { @JoinColumn(name = "USER_ID") }, inverseJoinColumns = { @JoinColumn(name = "ROLE_ID") })

    public List<Role> getRoleList() {

        return roleList;

    }

    public void setRoleList(List<Role> roleList) {

        this.roleList = roleList;

    }

    public void addRole(Role role){

        this.roleList.add(role);

    }

}

User

@Component

public class UserDao{

    @Autowired

    private SessionFactory sessionFactory;

    public Session getCurrentSession(){

        return sessionFactory.getCurrentSession();

    }

    public void save(User entity) {

         getCurrentSession().save(entity);

    }

    public void update(User entity) {

        getCurrentSession().update(entity);

    }

    public void delete(String id) {

        getCurrentSession().delete(this.get(id));;

    }

    public User get(String id) {

        String hql = "from User where id = '"+id+"'";

        return (User) getCurrentSession().createQuery(hql).uniqueResult();

    }

    @SuppressWarnings("unchecked")

    public List<User> getAll() {

        String hql = "from User";

        return getCurrentSession().createQuery(hql).list();

    }

}

UserDao

@Service

@Transactional

public class UserManager extends ServiceManager<User> {

    @Autowired

    private UserDao userDao;

    @Override

    public void save(User entity) throws Exception {

        if (entity != null) {

            entity.initDate();

            userDao.save(entity);

        } else {

            throw new Exception("保存出错");

        }

    }

    @Override

    public void update(User entity) throws Exception {

        if (entity != null) {

            entity.initDate();

            userDao.update(entity);

        } else {

            throw new Exception("修改出错");

        }

    }

    @Override

    public void delete(String id) throws Exception {

        userDao.delete(id);

    }

    @Override

    public User get(String id) throws Exception {

        return userDao.get(id);

    }

    @Override

    public List<User> getAll() throws Exception {

        return userDao.getAll();

    }

}

UserManager

public class UserAction extends CrudActionSupport<User> {

    private static final long serialVersionUID = 1L;

    @Autowired

    private UserManager userManager;

    @Autowired

    private RoleManager roleManager;

    private String id;

    private User entity;

    @Override

    public User getModel() {

        return entity;

    }

    @Override

    protected void prepareModel() throws Exception {

        if (!EmptyUtil.isEmpty(id)) {

            entity = userManager.get(id);

        } else {

            entity = new User();

        }

    }

    @Override

    public String list() throws Exception {

        List<User> userList = userManager.getAll();

        for(User user :userList){

            System.out.println(user.getName());

        }

        return SUCCESS;

    }

    @Override

    public String input() throws Exception {

        return "input";

    }

    @Override

    public String save() throws Exception {

        this.userManager.save(entity);

        return null;

    }

    @Override

    public String delete() throws Exception {

        return null;

    }

    public String getId() {

        return id;

    }

    public void setId(String id) {

        this.id = id;

    }

    public User getEntity() {

        return entity;

    }

    public void setEntity(User entity) {

        this.entity = entity;

    }

}

UserAction

码农公寓

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