學習目標

（1）SSM整合
（2）CRUD

ssm整合說明

（1）SSM是什么？
Spring,SpringMVC,Mybastis
（2）為什么要專門訓練SSM
要開發一個專案，首先是搭建SSM環境，之后才能開發其他功能
（3）整合思路是什么？
》》1.先搭建整合的環境
》》2.先把Spring的配置搭建完成
》》3.再使用Spring整合SpringMVC框架
》》4.最后使用Spring整合MyBatis框架
（4）SSM整合可以使用多種方式，咱們會選擇XML + 注解的方式

SSM搭建環境

（1）資料庫創建ssm
（2）創建maven工程
（3）properties給誰用？
（4）依賴框架
（5）log4j

SQL

create database ssm;
use ssm;
create table person(
id int primary key auto_increment, 
`name` varchar(20),
money double
);

pom.xml

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>1.8</maven.compiler.source>
    <maven.compiler.target>1.8</maven.compiler.target>
    <spring.version>5.2.9.RELEASE</spring.version>
    <slf4j.version>1.6.6</slf4j.version>
    <log4j.version>1.2.12</log4j.version>
    <mysql.version>5.1.6</mysql.version>
    <mybatis.version>3.4.5</mybatis.version>
  </properties>

  <dependencies>
    <!-- spring -->
    <dependency>
      <groupId>org.aspectj</groupId>
      <artifactId>aspectjweaver</artifactId>
      <version>1.6.8</version>
    </dependency>

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

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

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

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

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

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

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

    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.12</version>
      <scope>test</scope>
    </dependency>

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

    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>servlet-api</artifactId>
      <version>2.5</version>
      <scope>provided</scope>
    </dependency>

    <dependency>
      <groupId>javax.servlet.jsp</groupId>
      <artifactId>jsp-api</artifactId>
      <version>2.0</version>
      <scope>provided</scope>
    </dependency>

    <dependency>
      <groupId>jstl</groupId>
      <artifactId>jstl</artifactId>
      <version>1.2</version>
    </dependency>

    <!-- log start -->
    <dependency>
      <groupId>log4j</groupId>
      <artifactId>log4j</artifactId>
      <version>${log4j.version}</version>
    </dependency>

    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-api</artifactId>
      <version>${slf4j.version}</version>
    </dependency>

    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-log4j12</artifactId>
      <version>${slf4j.version}</version>
    </dependency>

    <!-- log end -->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis</artifactId>
      <version>${mybatis.version}</version>
    </dependency>

    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis-spring</artifactId>
      <version>1.3.0</version>
    </dependency>

    <dependency>
      <groupId>c3p0</groupId>
      <artifactId>c3p0</artifactId>
      <version>0.9.1.2</version>
      <type>jar</type>
      <scope>compile</scope>
    </dependency>
  </dependencies>

log4j.properties


# Set root category priority to INFO and its only appender to CONSOLE.
#log4j.rootCategory=INFO, CONSOLE            debug   info   warn error fatal
log4j.rootCategory=debug, CONSOLE, LOGFILE

# Set the enterprise logger category to FATAL and its only appender to CONSOLE.
log4j.logger.org.apache.axis.enterprise=FATAL, CONSOLE

# CONSOLE is set to be a ConsoleAppender using a PatternLayout.
log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
log4j.appender.CONSOLE.layout.ConversionPattern=%d{ISO8601} %-6r [%15.15t] %-5p %30.30c %x - %m\n

# LOGFILE is set to be a File appender using a PatternLayout.
log4j.appender.LOGFILE=org.apache.log4j.FileAppender
log4j.appender.LOGFILE.File=d:\ssm.log
log4j.appender.LOGFILE.Append=true
log4j.appender.LOGFILE.layout=org.apache.log4j.PatternLayout
log4j.appender.LOGFILE.layout.ConversionPattern=%d{ISO8601} %-6r [%15.15t] %-5p %30.30c %x - %m\n

整合Spring框架測驗代碼IOC&DI

（1）撰寫業務類呼叫測驗邏輯
》TestPersonService
》IPersonService PersonServiceImpl
》Person
（2）applicationContext.xml
（3）配置組件掃描 – 驗證IOC
（4）配置哪些不掃描
（5）驗證DI
》IPersonDao PersonDaoImpl

TestPersonService

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration("classpath:applicationContext.xml")
public class TestPersonService {
    private static final Logger log = Logger.getLogger(TestPersonService.class.getName());
   @Autowired
   IPersonService personService;
    @Test
    public void test01(){//撰寫兩個業務功能 查找所有的person 保存一個person
       //創建業務物件
       //IPersonService personService = new PersonServiceImpl();
       //呼叫查詢
       log.info(personService+"");
       List<Person> list = personService.findAll();
       //呼叫保存
       log.info(list+"");
       Person person = new Person("jack",100.00);
       personService.savePerson(person);

        List<Person> list1 = personService.findAll();
        log.info(list1+"");
    }

    @Test
    public void test02(){//DI
        System.out.println(personService);
    }
}

Person

public class Person {
    private Integer id;
    private String name;
    private Double money;

    public Person() {
    }

    public Person(String name, Double money) {
        this.name = name;
        this.money = money;
    }

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

IPersonService

public interface IPersonService {
    //顯示所有的Person資料
    List<Person> findAll();
    //保存一個Person資料
    void savePerson(Person person);
}

PersonServiceImpl

@Service
public class PersonServiceImpl implements IPersonService {
    @Autowired
    private IPersonDao iPersonDao;
    @Override
    public List<Person> findAll() {
        List<Person> list = iPersonDao.findAll(); //測驗IOC時寫列印陳述句 
        return list;
    }

    @Override
    public void savePerson(Person person) {
        iPersonDao.save(person);//測驗IOC時寫列印陳述句 
    }
}

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">

    <!--   設定掃描包，包下設定注解@Service @Repository @Component @AutoWried-->
    <context:component-scan base-package="com.wzx">
        <!--    由于springmvc的controller是由springmvc來掃描，需要將controller排除在外-->
            <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>
</beans>

IPersonDao

public interface IPersonDao {
    // 一般都是 CRUD
    //創建 add save
    //find  findById findAll
    //update updateById
    //deleteById  deleteByIds
    List<Person> findAll();
    void save(Person person);
}

PersonDaoImpl

@Repository
public class PersonDaoImpl implements IPersonDao {
    @Override
    public List<Person> findAll() {
        System.out.println("findAll dao");
        return null;
    }

    @Override
    public void save(Person person) {
        System.out.println("save dao");
    }
}

Spring整合SpringMVC的框架1

（1）web.xml中配置前端控制器DispatcherServlet
SpringMVC的核心就是DispatcherServlet，DispatcherServlet實質也是一個HttpServlet，DispatcherSevlet負責將請求分發，所有的請求都有經過它來統一分發，
（2）web.xml中配置編碼過濾器CharacterEncodingFilter
在 SpringMVC 中，框架直接給我們提供了一個用來解決請求和回應的亂碼問題的過濾器 CharacterEncodingFilter
（3）web.xml中配置編碼監聽器ContextLoaderListener
web.xml中的組態檔中ContextLoaderListener作為監聽器，會監聽web容器相關事件，在web容器啟動或者關閉時觸發執行回應程式

web.xml 配置DispatcherServlet，CharacterEncodingFilter,ContextLoaderListener


  <!--設定組態檔的路徑  service dao-->
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:applicationContext.xml</param-value>
  </context-param>


  <!--解決中文亂碼的過濾器-->
  <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>


  <!--配置Spring的監聽器，默認只加載WEB-INF目錄下的applicationContext.xml組態檔-->
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>

  <!--配置前端控制器  controller-->
  <servlet>
    <servlet-name>dispatcherServlet</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <!--加載springmvc.xml組態檔-->
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:springmvc.xml</param-value>
    </init-param>
    <!--啟動服務器，創建該servlet-->
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>dispatcherServlet</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>

Spring整合SpringMVC的框架2

（1）springmvc中配置視圖決議器，組件掃描，注解驅動
（2）配置springmvc對資源檔案的放行
（3）撰寫一個PersonController測驗
（4）撰寫一個list.jsp頁面進行展示資料

配置springmvc.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">
        <!--springmvc是web層  UserController  @Controller -->
    <!-- 打開組件掃描-->
    <context:component-scan base-package="com.wzx">
         <!-- 只處理帶@Controller的請求-->
        <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>

    <!--配置的視圖決議器物件 /WEB-INF/pages/success.jsp -->
    <bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/pages/"/>
        <property name="suffix" value=".jsp"/>
    </bean>
    <!--過濾靜態資源   .js .css png-->
    <mvc:resources location="/css/" mapping="/css/**" />
    <mvc:resources location="/images/" mapping="/images/**" />
    <mvc:resources location="/js/" mapping="/js/**" />
    <!--開啟SpringMVC注解的支持 @RequestMapping @RequestBody @ResponseBody-->
    <mvc:annotation-driven/>
</beans>

PersonController

@Controller
@RequestMapping("/person")
public class PersonController {
    @Autowired
    private IPersonService personService;

    @RequestMapping(path="/list",method = RequestMethod.GET)
    public String list(Model model){
        //顯示所有的person資料
        List<Person> list = personService.findAll();
        System.out.println("list() list= "+list);
        //資料放在Model物件，由Model傳給頁面
        model.addAttribute("list",list);//參1 key  參2 value
        return "list";
    }
}

list.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" isELIgnored="false" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
        <html>
<head>
    <title>Title</title>
</head>
<body>
<table border="1px" width="100%">
    <c:forEach items="${list}" var="person">
         <tr>
             <td>${person.id}</td>
             <td>${person.name}</td>
             <td>${person.money}</td>
         </tr>
    </c:forEach>
</table>
</body>
</html>

Service由于有junit測驗基本不會有bug
Web層使用log4j 列印請求引數，回應給頁面的資料

Spring整合Mybatis

配置Mybatis

（1）SqlMapConfig.xml
》》指定四大資訊：賬號密碼ip埠
》》指定domain別名
》》指定映射檔案
（2）撰寫測驗
》》保存
》》查詢

SqlMapConfig.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration
        PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
    <!-- 別名  com.wzx.domain.Person  person-->
    <typeAliases>
        <package name="com.wzx.domain"/>
    </typeAliases>
    <environments default="mysql">
        <environment id="mysql">
            <transactionManager type="JDBC"/>
            <dataSource type="POOLED">
                <property name="driver" value="com.mysql.jdbc.Driver"/>
                <property name="url" value="jdbc:mysql://localhost:3306/ssm"/>
                <property name="username" value="root"/>
                <property name="password" value="123456"/>
            </dataSource>
        </environment>
    </environments>
    <!-- 核心 組態檔掃描到映射檔案-->
    <mappers>
        <package name="com.wzx.dao"/>
    </mappers>
</configuration>

TestMyBatis

public class TestMyBatis {
    private  SqlSession session;
    @Before
    public void init(){
        // 加載組態檔
        InputStream in = TestMyBatis.class.getClassLoader().getResourceAsStream("SqlMapConfig.xml");
        // 創建SqlSessionFactory物件
        SqlSessionFactory factory = new SqlSessionFactoryBuilder().build(in);
        // 創建SqlSession物件
         session = factory.openSession();
    }
    @After
    public void destory(){
        session.commit();
        session.close();
    }
    @Test
    public void test01(){
        //最核心物件是session
       // System.out.println(session);
        //Mybastis的特點是sql與代碼是分開的，需要映射檔案
        IPersonDao dao =  session.getMapper(IPersonDao.class);
        List<Person> list = dao.findAll();
        System.out.println(list);
    }
    @Test
    public void test02(){
        //最核心物件是session

        IPersonDao dao =  session.getMapper(IPersonDao.class);
        dao.save(new Person("tony",200.00));

    }
}

IPersonDao.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.wzx.dao.IPersonDao">
    <select id="findAll" resultType="person">
            select * from person;
    </select>

    <insert id="save" parameterType="person">
        insert into person (name,money)values(#{name},#{money})
    </insert>
</mapper>

Spring整合MyBatis框架

（1）Spring整合MyBatis需要添加整合包
（2）什么是mybatis-spring
MyBatis-Spring 會幫助你將 MyBatis 代碼無縫地整合到 Spring 中，它將允許 MyBatis 參與到 Spring 的事務管理之中，創建映射器 mapper 和 SqlSession 并注入到 bean 中
不需要呼叫 session.getMapper(IpersonDao.class)
session.commit()
session.close()

pom.xml

    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis-spring</artifactId>
      <version>1.3.0</version>
    </dependency>

applicationContext.xml

將SqlMapConfig.xml的資料配置到spring中

    <!-- 四大資訊-->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/ssm"></property>
        <property name="driverClass" value="com.mysql.jdbc.Driver"></property>
        <property name="user" value="root"></property>
        <property name="password" value="123456"></property>
    </bean>
    <!-- session工廠-->
    <bean id="sqlSessionFactory"  class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>
        <!-- com.wzx.domain.Person  person-->
        <property name="typeAliasesPackage" value="com.wzx.domain"/>
    </bean>
    <!-- IPersonDao.xml  IPersonDao.java-->
    <bean id="mapperScanner" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
         <property name="basePackage" value="com.wzx.dao"/>
         <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
    </bean>

TestDataSource

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration("classpath:applicationContext.xml")
public class TestDataSource {
    private static final Logger log = Logger.getLogger(TestDataSource.class.getName());
    @Autowired
    IPersonDao dao;
    @Test
    public void test01() throws SQLException {
        List<Person> data = dao.findAll();
        System.out.println(data);
    }
    @Test
    public void test02() throws SQLException {
        Person p =  new Person("hello",200.00);
        dao.save(p);
    }

}

Spring管理事務***

（1）運算式設定有哪些serivce方法需要事務管理
（2）通知設定增刪改查業務方法具體對應的事務
（3）運行Test

applicationContext.xml


    <!--配置Spring框架宣告式事務管理-->
    <!--配置事務管理器-->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource" />
    </bean>

    <tx:advice id="txAdvice" transaction-manager="transactionManager">
        <tx:attributes>
            <tx:method name="find*" read-only="true"/>
            <tx:method name="*" isolation="DEFAULT"/>
        </tx:attributes>
    </tx:advice>

    <!--配置AOP增強-->
    <aop:config>
        <aop:pointcut id="service" expression="execution(* com.wzx.service.impl.*ServiceImpl.*(..))"/>
        <aop:advisor advice-ref="txAdvice" pointcut-ref="service"/>
    </aop:config>

TestPersonService

@Test
    public void test03(){
        List<Person> personList = new ArrayList<>();
        personList.add(new Person("jack",100.00));
        personList.add(new Person("rose",200.00));
        personList.add(new Person("tony",300.00));

        personService.savePersons(personList);
    }

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Day26SSM之整合

學習目標

ssm整合說明

SSM搭建環境

SQL

pom.xml

log4j.properties

整合Spring框架測驗代碼IOC&DI

TestPersonService

Person

IPersonService

PersonServiceImpl

applicationContext.xml

IPersonDao

PersonDaoImpl

Spring整合SpringMVC的框架1

web.xml 配置DispatcherServlet，CharacterEncodingFilter,ContextLoaderListener

Spring整合SpringMVC的框架2

配置springmvc.xml

PersonController

list.jsp

Spring整合Mybatis

配置Mybatis

SqlMapConfig.xml

TestMyBatis

IPersonDao.xml

Spring整合MyBatis框架

pom.xml

applicationContext.xml

TestDataSource

Spring管理事務***

applicationContext.xml

TestPersonService