小白快速搭建ssh框架

 

首先导入依赖:

  <properties>
  <springVersion>4.3.1.RELEASE</springVersion>
  <hibernateVersion>4.3.5.Final</hibernateVersion>
  <jstlVersion>1.2</jstlVersion>
  <taglibVersion>1.1.2</taglibVersion>
  <servletVersion>3.0-alpha-1</servletVersion>
  <jsonVersion>1.9.13</jsonVersion>
  <jacksonVersion>2.5.0</jacksonVersion>
  <mysqlVersion>5.1.38</mysqlVersion>
  <c3p0Version>0.9.1.2</c3p0Version>
  <log4jVersion>1.2.17</log4jVersion>
  <fileuploadVersion>1.3.1</fileuploadVersion>
  <lombokVersion>1.16.10</lombokVersion>
</properties>

  <dependencies>
  
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
    </dependency>

    <!-- spring-->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-beans</artifactId>
      <version>${springVersion}</version>
    </dependency>

    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-core</artifactId>
      <version>${springVersion}</version>
    </dependency>

    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context</artifactId>
      <version>${springVersion}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-orm</artifactId>
      <version>${springVersion}</version>
    </dependency>

   
    <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>

    <!-- hibernate配置-->
    <dependency>
      <groupId>org.hibernate</groupId>
      <artifactId>hibernate-core</artifactId>
      <version>${hibernateVersion}</version>
    </dependency>

    <!-- hibernate 缓存-->
    <dependency>
      <groupId>org.hibernate</groupId>
      <artifactId>hibernate-ehcache</artifactId>
      <version>${hibernateVersion}</version>
    </dependency>

    <!-- jstl支持-->
    <dependency>
      <groupId>jstl</groupId>
      <artifactId>jstl</artifactId>
      <version>${jstlVersion}</version>
    </dependency>
    <dependency>
      <groupId>taglibs</groupId>
      <artifactId>standard</artifactId>
      <version>${taglibVersion}</version>
    </dependency>
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>servlet-api</artifactId>
      <version>${servletVersion}</version>
      <scope>provided</scope>
    </dependency>

    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>${mysqlVersion}</version>
    </dependency>

    <!-- 数据库连接池-->
    <dependency>
      <groupId>c3p0</groupId>
      <artifactId>c3p0</artifactId>
      <version>${c3p0Version}</version>
    </dependency>

   
    <dependency>
      <groupId>org.codehaus.jackson</groupId>
      <artifactId>jackson-mapper-asl</artifactId>
      <version>${jsonVersion}</version>
    </dependency>

   
    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-core</artifactId>
      <version>${jacksonVersion}</version>
    </dependency>
    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-annotations</artifactId>
      <version>${jacksonVersion}</version>
    </dependency>

    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-databind</artifactId>
      <version>${jacksonVersion}</version>
    </dependency>

  <!-- 
    <dependency>
      <groupId>log4j</groupId>
      <artifactId>log4j</artifactId>
      <version>${log4jVersion}</version>
    </dependency>-->

    <!--文件 上传-->
    <dependency>
      <groupId>commons-fileupload</groupId>
      <artifactId>commons-fileupload</artifactId>
      <version>${fileuploadVersion}</version>
    </dependency>

    <!-- lombok插件导包-->
    <dependency>
      <groupId>org.projectlombok</groupId>
      <artifactId>lombok</artifactId>
      <version>${lombokVersion}</version>
      <scope>provided</scope>
    </dependency>

  </dependencies>

编写spring的配置文件,applicationContext.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:context="http://www.springframework.org/schema/context"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xmlns:tx="http://www.springframework.org/schema/tx"
       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/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">
   
    <!--Spring要扫描的包-->
    <!-- 开启注解扫描,要扫描的是service和dao层的注解,要忽略web层注解,
    因为web层让SpringMVC框架 去管理 -->
    <context:component-scan base-package="com.tsu">
        <!--配置要忽略的注解,Controller由Sringmvc管理-->
        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"></context:exclude-filter>
    </context:component-scan>


    <!--********************************************配置hibernate********************************************-->

    <!--扫描配置文件config.properties-->
    <context:property-placeholder location="classpath:/config.properties" />

    <!--配置数据源-->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource" destroy-method="close">
        <property name="driverClass" value="${jdbc.driver}" /> <!--驱动-->
        <property name="jdbcUrl" value="${jdbc.url}" />     <!--数据库地址-->
        <property name="user" value="${jdbc.username}" />     <!--用户名-->  
        <property name="password" value="${jdbc.password}" /> <!--密码-->
        <property name="maxPoolSize" value="40" />
        <property name="minPoolSize" value="1" />
        <property name="initialPoolSize" value="10" />
        <property name="maxIdleTime" value="20" />
    </bean>

    <!--配置session工厂-->
    <bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <property name="packagesToScan" value="com.tsu.entity" />
        <property name="hibernateProperties">
            <props>
                <!--create 每次都会重新创建表结构 -->
                <prop key="hibernate.hbm2ddl.auto">${hibernate.hbm2ddl.auto}</prop>
                <!--数据库方言-->
                <prop key="hibernate.dialect">${hibernate.dialect}</prop>   
                <!--是否在控制台打印SQL语句-->
                <prop key="hibernate.show_sql">${hibernate.show_sql}</prop>
                <!--将SQL语句格式化-->
                <prop key="hibernate.format_sql">${hibernate.format_sql}</prop>
            </props>
        </property>
    </bean>

    <!-- 事物管理器配置  -->
    <bean id="transactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager">
        <property name="sessionFactory" ref="sessionFactory" />
    </bean>

hibernate的config.properties:

#数据库的配置
jdbc.driver = com.mysql.jdbc.Driver
jdbc.url = jdbc:mysql://localhost:3306/sshh?useUnicode=true&characterEncoding=utf-8
jdbc.username = root
jdbc.password = 123456

#hibernate的配置
hibernate.dialect = org.hibernate.dialect.MySQLDialect
hibernate.show_sql = true
hibernate.format_sql = true
hibernate.hbm2ddl.auto = update

springmvc的配置文件spring-mvc.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans.xsd
           http://www.springframework.org/schema/mvc
          http://www.springframework.org/schema/mvc/spring-mvc.xsd
       http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context.xsd">

    <!-- 配置创建 spring 容器要扫描的包 -->
    <context:component-scan base-package="com.tsu">
        <!-- 制定扫包规则 ,只扫描使用@Controller 注解的 JAVA 类 -->
        <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"></context:include-filter>
    </context:component-scan>

    <!--配置视图解析器-->
    <bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/jsps/"></property>
        <property name="suffix" value=".jsp"></property>
    </bean>

    <!-- 设置静态资源不过滤 -->
    <mvc:resources mapping="/js/**" location="/resources/js/" />
    <mvc:resources mapping="/css/**" location="/resources/css/" />
    <mvc:resources mapping="/img/**" location="/resources/img/" />

    <!--开启mvc对注解的支持-->
    <mvc:annotation-driven></mvc:annotation-driven>
</beans>

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">

  <!--监听器-->
  <listener>
    <!--默认加载WEB-INf下的applicationContext.xml-->
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
  <context-param>
    <!--给监听器配置一个文件路径 给该Listener指定要加载的xml-->
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:applicationContext.xml</param-value>
  </context-param>

  <!--编码过滤器-->
  <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>
  </filter>
  <filter-mapping>
    <filter-name>characterEncodingFilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>


  <!-- spring MVC config -->
  <servlet>
    <servlet-name>spring</servlet-name>
   <!--前端控制器 到处理器映射器  再到处理器适配器  再到视图解析器-->
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <!-- 此处指向的的是SpringMVC的配置文件 -->
      <param-value>classpath:/spring-mvc.xml</param-value>
    </init-param>
    <!--配置容器在启动的时候就加载-->
    <load-on-startup>1</load-on-startup>
  </servlet>

  <servlet-mapping>
    <servlet-name>spring</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>


</web-app>

建立实体类:

@Data
@Entity
@Table(name = "Person")
public class Person {

    @Id
    @GeneratedValue  //生成唯一标识
    private Long id;

    @Column(name = "created")
    private Long created = System.currentTimeMillis();

    @Column(name = "username")
    private String username;

    @Column(name = "address")
    private String address;

 
}

controller和service:略

dao:

@Repository
public class PersonDaoImpl implements IPersonDao {

    @Autowired
    private SessionFactory sessionFactory;

    /*
    * 获取session
    * */
    private Session getCurrentSession() {
        return this.sessionFactory.openSession();
    }

    /*
    * 查询
    * 查询不到load会返回空
    * get会返回null
    * */
    public Person load(Long id) {
        return (Person)getCurrentSession().load(Person.class,id);
    }

    public Person get(Long id) {
        return (Person)getCurrentSession().get(Person.class,id);
    }

    public List<Person> findAll() {
        return sessionFactory.openSession().createQuery("from Person").list();
    }

    /*该方法没有返回值*/
    public void persist(Person entity) {
        getCurrentSession().persist(entity);
    }
    /*该方法返回该持久化对象的标识属性值(即主键)*/
    public Long save(Person entity) {
        return (Long)getCurrentSession().save(entity);
    }

    public void saveOrUpdate(Person entity) {
        getCurrentSession().saveOrUpdate(entity);
    }

}

 

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