spring5mvc第三天【大纲笔记】

SpringMVC第三天

第1章 SSM整合

1.1环境准备

1.1.1创建数据库和表结构

create database ssm;

create table account(

id int primary key auto_increment,

name varchar(100),

money double(7,2),

);

1.1.2创建 Maven工程

创建父工程：

创建子模块：

ssm_domain

ssm_dao

jar

jar

jar

war

ssm_service

ssm_web

1.1.3导入坐标并建立依赖

注意MyBatis和Spring的版本对应关系：

<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">

<modelVersion>4.0.0</modelVersion>

<groupId>com.itheima</groupId>

<artifactId>ssm</artifactId>

<version>0.0.1-SNAPSHOT</version>

<packaging>pom</packaging>

<properties>

<spring.version>5.0.2.RELEASE</spring.version>

<slf4j.version>1.6.6</slf4j.version>

<log4j.version>1.2.12</log4j.version>

<shiro.version>1.2.3</shiro.version>

<mysql.version>5.1.6</mysql.version>

<mybatis.version>3.4.5</mybatis.version>

</properties>

<dependencies>



<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-context-support</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-orm</artifactId>

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

</dependency>

<dependency>

<groupId>org.springframework</groupId>

<artifactId>spring-beans</artifactId>

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

</dependency>

<dependency>

<groupId>org.springframework</groupId>

<artifactId>spring-core</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-webmvc</artifactId>

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

</dependency>

<dependency>

<groupId>org.springframework</groupId>

<artifactId>spring-tx</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>



<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>



<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>

<build>

<finalName>ssm</finalName>

<pluginManagement>

<plugins>

<plugin>

<groupId>org.apache.maven.plugins</groupId>

<artifactId>maven-compiler-plugin</artifactId>

<version>3.2</version>

<configuration>

<source>1.8</source>

<target>1.8</target>

<encoding>UTF-8</encoding>

<showWarnings>true</showWarnings>

</configuration>

</plugin>

</plugins>

</pluginManagement>

</build>

<modules>

<module>ssm_domain</module>

<module>ssm_dao</module>

<module>ssm_service</module>

<module>ssm_web</module>

</modules>

</project>

1.1.4编写实体类

/**

*账户的实体类

* @author黑马程序员

* @Company http://www.ithiema.com

* @Version 1.0

*/

public class Account implements Serializable {

private Integer id;

private String name;

private Float money;

public Integer getId() {

return id;

}

public void setId(Integer id) {

this.id = id;

}

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

public Float getMoney() {

return money;

}

public void setMoney(Float money) {

this.money = money;

}

@Override

public String toString() {

return "Account [id=" + id + ", name=" + name + ", money=" + money + "]";

}

}

1.1.5编写业务层接口

/**

*账户的业务层接口

* @author黑马程序员

* @Company http://www.ithiema.com

* @Version 1.0

*/

public interface IAccountService {

/**

*保存账户

* @param account

*/

void saveAccount(Account account);

/**

*查询所有账户

* @return

*/

List<Account> findAllAccount();

}

1.1.6编写持久层接口

/**

*账户的持久层接口

* @author黑马程序员

* @Company http://www.ithiema.com

* @Version 1.0

*/

public interface IAccountDao {

/**

*保存

* @param account

*/

void save(Account account);

/**

*查询所有

* @return

*/

List<Account> findAll();

}

1.2整合步骤

1.2.1保证 Spring框架在 web工程中独立运行

1.2.1.1第一步：编写 spring配置文件并导入约束

<?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:aop="http://www.springframework.org/schema/aop"

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

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

xsi:schemaLocation="http://www.springframework.org/schema/beans

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

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

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

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

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

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

http://www.springframework.org/schema/context/spring-context.xsd">



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



<context:exclude-filter type="annotation"

expression="org.springframework.stereotype.Controller" />

</context:component-scan>

</beans>

1.2.1.2第二步：使用注解配置业务层和持久层

/**

*账户的业务层实现类

*/

@Service("accountService")

public class AccountServiceImpl implements IAccountService {

@Autowired

private IAccountDao accountDao;

@Override

public List<Account> findAllAccount() {

return accountDao.findAllAccount();

}

@Override

public void saveAccount(Account account) {

accountDao.saveAccount

}

}

持久层实现类代码：

此时不要做任何操作，就输出一句话。目的是测试 spring框架搭建的结果。

/**

*账户的持久层实现类

*/

@Repository("accountDao")

public class AccountDaoImpl implements IAccountDao {

@Override

public List<Account> findAllAccount() {

System.out.println("查询了所有账户");

return null;

}

@Override

public void saveAccount(Account account) {

System.out.println("保存了账户");

}

}

1.2.1.3第三步：测试 spring能否独立运行

/**

*测试spring环境搭建是否成功

* @author黑马程序员

* @Company http://www.ithiema.com

* @Version 1.0

*/

public class Test01Spring {

public static void main(String[] args) {

ApplicationContext

ac

=

new

ClassPathXmlApplicationContext("applicationContext.xml");

IAccountService as = ac.getBean("accountService",IAccountService.class);

as.findAllAccount();

}

}

运行结果：

1.2.2保证 SpringMVC在 web工程中独立运行

1.2.2.1第一步：在 web.xml中配置核心控制器（DispatcherServlet）

<?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_2_5.xsd"

version="2.5">

<display-name>ssm_web</display-name>



<servlet>

<servlet-name>springmvcDispatcherServlet</servlet-name>

<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>



<init-param>

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

<param-value>classpath:springmvc.xml</param-value>

</init-param>



<load-on-startup>1</load-on-startup>

</servlet>

<servlet-mapping>

<servlet-name>springmvcDispatcherServlet</servlet-name>

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

</servlet-mapping>



<filter>

<filter-name>CharacterEncodingFilter</filter-name>

<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-cla

ss>



<init-param>

<param-name>encoding</param-name>

<param-value>UTF-8</param-value>

</init-param>



<init-param>

<param-name>forceEncoding</param-name>

<param-value>true</param-value>

</init-param>

</filter>



<filter-mapping>

<filter-name>CharacterEncodingFilter</filter-name>

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

</filter-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>

1.2.2.2第二步：编写 SpringMVC的配置文件

<?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">



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



<context:include-filter type="annotation"

expression="org.springframework.stereotype.Controller" />

</context:component-scan>



<bean

class="org.springframework.web.servlet.view.InternalResourceViewResolver">

<property name="prefix" value="/WEB-INF/pages/"></property>

<property name="suffix" value=".jsp"></property>

</bean>

<mvc:annotation-driven></mvc:annotation-driven>

</beans>

1.2.2.3第三步：编写 Controller和 jsp页面

jsp代码：

<%@ page language="java" contentType="text/html; charset=UTF-8"

pageEncoding="UTF-8"%>

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"

"http://www.w3.org/TR/html4/loose.dtd">

<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">

<title>主页</title>

</head>

<body>

<a href="account/findAllAccount">访问查询账户</a>

</body>

</html>

控制器代码：

/**

*账户的控制器

* @author黑马程序员

* @Company http://www.ithiema.com

* @Version 1.0

*/

@Controller("accountController")

@RequestMapping("/account")

public class AccountController {

@RequestMapping("/findAllAccount")

public String findAllAccount() {

System.out.println("执行了查询账户");

return "success";

}

}

运行结果：

1.2.3整合 Spring和 SpringMVC

1.2.3.1第一步：配置监听器实现启动服务创建容器



<listener>

<listener-class>

org.springframework.web.context.ContextLoaderListener

</listener-class>

</listener>



<context-param>

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

<param-value>classpath:applicationContext.xml</param-value>

</context-param>

1.2.4保证 MyBatis框架在 web工程中独立运行

1.2.4.1第一步：编写 AccountDao映射配置文件

注意：我们使用代理dao的方式来操作持久层，所以此处Dao的实现类就是多余的了。

<?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.itheima.dao.IAccountDao">



<select id="findAll" resultType="com.itheima.domain.Account">

select * from account

</select>



<insert id="save" parameterType="com.itheima.domain.Account">

insert into account(name,money) values(#{name},#{money});

</insert>

</mapper>

1.2.4.2第二步：编写 SqlMapConfig配置文件

<?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>

<properties resource="jdbcConfig.properties"></properties>

<environments default="mysql">

<environment id="mysql">

<transactionManager type="JDBC"></transactionManager>

<dataSource type="pooled">

<property name="driver" value="${jdbc.driver}"/>

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

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

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

</dataSource>

</environment>

</environments>

<mappers>

<mapper resource="com/itheima/dao/AccountDao.xml"/>

</mappers>

</configuration>

properties文件中的内容：

jdbc.driver=com.mysql.jdbc.Driver

jdbc.url=jdbc:mysql://localhost:3306/ssm

jdbc.username=root

jdbc.password=1234

1.2.4.3第三步：测试运行结果

测试类代码：

/**

*测试MyBatis独立使用

* @author黑马程序员

* @Company http://www.ithiema.com

* @Version 1.0

*/

public class Test02MyBatis {

/**

*测试保存

* @param args

* @throws Exception

*/

@Test

public void testSave() throws Exception {

Account account = new Account();

account.setName("test");

account.setMoney(5000f);

InputStream in = Resources.getResourceAsStream("SqlMapConfig.xml");

SqlSessionFactory factory = new SqlSessionFactoryBuilder().build(in);

SqlSession session= factory.openSession();

IAccountDao aDao = session.getMapper(IAccountDao.class);

aDao.save(account);

session.commit();

session.close();

in.close();

}

/**

*测试查询

* @param args

* @throws Exception

*/

@Test

public

void testFindAll() throws Exception{

InputStream in = Resources.getResourceAsStream("SqlMapConfig.xml");

SqlSessionFactory factory = new SqlSessionFactoryBuilder().build(in);

SqlSession session= factory.openSession();

IAccountDao aDao = session.getMapper(IAccountDao.class);

List<Account> list = aDao.findAll();

System.out.println(list);

session.close();

in.close();

}

}

1.2.5整合 Spring和 MyBatis

整合思路：

把mybatis配置文件（SqlMapConfig.xml）中内容配置到spring配置文件中

同时，把mybatis配置文件的内容清掉。

<?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>

</configuration>

注意：

由于我们使用的是代理Dao的模式，Dao具体实现类由MyBatis使用代理方式创建，所以此时mybatis

配置文件不能删。

当我们整合spring和mybatis时，mybatis创建的Mapper.xml文件名必须和Dao接口文件名一致

1.2.5.1第一步：Spring接管 MyBatis的 Session工厂



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



<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">



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



<property name="configLocation" value="classpath:SqlMapConfig.xml" />

</bean>



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

<property name="driverClass" value="${jdbc.driver}"></property>

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

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

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

</bean>

1.2.5.2第二步：配置自动扫描所有 Mapper接口和文件



<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">

<property name="basePackage" value="com.itheima.dao"/>

</bean>

1.2.5.3第三步：配置 spring的事务



<bean

id="transactionManager"

class="org.springframework.jdbc.datasource.DataSourceTransactionManager">

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

</bean>



<tx:advice id="txAdvice" transaction-manager="transactionManager">

<tx:attributes>

<tx:method name="*" propagation="REQUIRED" read-only="false"/>

<tx:method name="find*" propagation="SUPPORTS" read-only="true"/>

</tx:attributes>

</tx:advice>



<aop:config>



<aop:pointcut

expression="execution(*

com.itheima.service.impl.*.*(..))"

id="pt1"/>



<aop:advisor advice-ref="txAdvice" pointcut-ref="pt1"/>

</aop:config>

1.2.5.4第三步：测试整合结果

/**

*测试spring整合mybatis

* @author黑马程序员

* @Company http://www.ithiema.com

* @Version 1.0

*/

@RunWith(SpringJUnit4ClassRunner.class)

@ContextConfiguration(locations= {"classpath:applicationContext.xml"})

public class Test03SpringMabatis {

@Autowired

private IAccountService accountService;

@Test

public void testFindAll() {

List list = accountService.findAllAccount();

System.out.println(list);

}

@Test

public void testSave() {

Account account = new Account();

account.setName("测试账号");

account.setMoney(1234f);

accountService.saveAccount(account);

}

}

1.2.6测试 SSM整合结果

1.2.6.1编写测试 jsp

请求发起页面：

<%@

page

language="java"

contentType="text/html;

charset=UTF-8"

pageEncoding="UTF-8"%>

<!DOCTYPE

html

PUBLIC

"-//W3C//DTD

HTML

4.01

Transitional//EN"

"http://www.w3.org/TR/html4/loose.dtd">

<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">

<title>主页</title>

</head>

<body>

<a href="account/findAllAccount">访问查询账户</a>

<hr/>

<form action="account/saveAccount" method="post">

账户名称：<input type="text" name="name"/><br/>

账户金额：<input type="text" name="money"><br/>

<input type="submit" value="保存"/>

</form>

</body>

</html>

响应结果页面：

<%@

page

language="java"

pageEncoding="UTF-8"%>

<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>

contentType="text/html;

charset=UTF-8"

<!DOCTYPE

html

PUBLIC

"-//W3C//DTD

HTML

4.01

Transitional//EN"

"http://www.w3.org/TR/html4/loose.dtd">

<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">

<title>账户的列表页面</title>

</head>

<body>

<table border="1" width="300px">

<tr>

<th>编号</th>

<th>账户名称</th>

<th>账户金额</th>

</tr>

<c:forEach items="${accounts}" var="account" varStatus="vs">

<tr>

<td>${vs.count}</td>

<td>${account.name }</td>

<td>${account.money }</td>

</tr>

</c:forEach>

</table>

</body>

</html>

1.2.6.2修改控制器中的方法

/**

*账户的控制器

* @author黑马程序员

* @Company http://www.ithiema.com

* @Version 1.0

*/

@Controller("accountController")

@RequestMapping("/account")

public class AccountController {

@Autowired

private IAccountService accountService;

/**

*查询所有账户

* @return

*/

@RequestMapping("/findAllAccount")

public ModelAndView findAllAccount() {

List<Account> accounts = accountService.findAllAccount();

ModelAndView mv = new ModelAndView();

mv.addObject("accounts", accounts);

mv.setViewName("accountlist");

return mv;

}

/**

*保存账户

* @param account

* @return

*/

@RequestMapping("/saveAccount")

public String saveAccount(Account account) {

accountService.saveAccount(account);

return "redirect:findAllAccount";

}

}

1.2.6.3测试运行结果

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spring5mvc第三天【大纲笔记】

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