使用spring+spring mvc+mybaits框架搭建ssm项目

一.创建spring的web工程

1.0 ssm流程概述

ssm的含义如下：

1.1 创建ssm-demo工程

1.选择maven的创建模板

2.设置坐标

3.设置maven

4.设置存储路径

5.初始结构

1.2 给工程配置相应web组件

1配置project

2.配置facet

如下图：

最后web工程结构：

二.ssm工程的配置（使用原始整合方式，service层使用加载配置文件的方式）

2.1 配置文件说明

2.2 pom文件中依赖的配置

  <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>5.0.2.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>



 <!-- 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>compile</scope>
    </dependency>

    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>${mysql.version}</version>
    </dependency>
   <!-- spring mvc-->
    <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>
 <!-- mybaits -->
    <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>
<!-- 分页插件-->
    <dependency>
      <groupId>com.github.pagehelper</groupId>
      <artifactId>pagehelper</artifactId>
      <version>3.7.5</version>
    </dependency>
    <dependency>
      <groupId>com.github.jsqlparser</groupId>
      <artifactId>jsqlparser</artifactId>
      <version>0.9.1</version>
    </dependency>

2.3 工程controller，dao。service等结构的搭建

2.3.1 controller层

package com.ljf.spring.ssm.demo.controller;

import com.ljf.spring.ssm.demo.bean.Account;
import com.ljf.spring.ssm.demo.service.AccountService;
import org.apache.log4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.List;

/**
 * @ClassName: AccountController
 * @Description: TODO
 * @Author: liujianfu
 * @Date: 2021/02/20 14:33:00 
 * @Version: V1.0
 **/
@Controller
@RequestMapping("/account")
public class AccountController {

    private static Logger log = Logger.getLogger(AccountController.class);
    @Autowired
    private AccountService accountService;

    @RequestMapping("/findAll")
    public String findAll(Model model){
        System.out.println("表现层：查询所有账户...");
        log.info("表现层：查询所有账户...");
        // 调用service的方法
        List<Account> list = accountService.findAll();
        model.addAttribute("list",list);
        return "account_list";
    }

    /**
     * 保存
     * @return
     */
    @RequestMapping("/save")
    public void save(Account account, HttpServletRequest request, HttpServletResponse response) throws IOException {
        log.info("表现层：保存账户信息...");
        accountService.saveAccount(account);
        response.sendRedirect(request.getContextPath()+"/account/findAll");
        return;
    }

}

2.3.2 service 层

@Service  //相当于    <!--注册accountserviceImpl这个bean<bean id="accountService" class="com.ljf.spring.ssm.demo.service.impl.AccountServiceImpl"></bean>

1.service接口

package com.ljf.spring.ssm.demo.service;

import com.ljf.spring.ssm.demo.bean.Account;

import java.io.IOException;
import java.util.List;

public interface AccountService {
    // 查询所有账户
    public List<Account> findAll() ;

    // 保存帐户信息
    public void saveAccount(Account account);
}

2.service的实现层

package com.ljf.spring.ssm.demo.service.impl;

import com.ljf.spring.ssm.demo.bean.Account;
import com.ljf.spring.ssm.demo.mapper.AccountMapper;
import com.ljf.spring.ssm.demo.service.AccountService;
import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;
import org.springframework.core.annotation.Order;
import org.springframework.stereotype.Service;

import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;

/**
 * @ClassName: AccountServiceImpl
 * @Description: TODO
 * @Author: liujianfu
 * @Date: 2021/02/19 23:25:38 
 * @Version: V1.0
 **/
@Service  //相当于    <!--注册accountserviceImpl这个bean<bean id="accountService" class="com.ljf.spring.ssm.demo.service.impl.AccountServiceImpl"></bean>
public class AccountServiceImpl implements AccountService {

    @Override
    public List<Account> findAll()  {
        List<Account> accountList=new ArrayList<>();
        try {
            InputStream resourceAsStream = Resources.getResourceAsStream("mybaitsConfig.xml");
            SqlSessionFactory sqlSessionFactory = new SqlSessionFactoryBuilder().build(resourceAsStream);
            SqlSession sqlSession = sqlSessionFactory.openSession(true);
           AccountMapper mapper = sqlSession.getMapper(AccountMapper.class);
            accountList = mapper.findAll();
            sqlSession.close();
        }
        catch (Exception e){
            e.printStackTrace();
        }
        return accountList;
    }

    @Override
    public void saveAccount(Account account) {
        List<Account> accountList=new ArrayList<>();
        try {
            InputStream resourceAsStream = Resources.getResourceAsStream("mybaitsConfig.xml");
            SqlSessionFactory sqlSessionFactory = new SqlSessionFactoryBuilder().build(resourceAsStream);
            SqlSession sqlSession = sqlSessionFactory.openSession(true);
            AccountMapper mapper = sqlSession.getMapper(AccountMapper.class);
            mapper.saveAccount(account);
            sqlSession.commit();
            sqlSession.close();
        }
        catch (Exception e){
            e.printStackTrace();
        }
    }
}

2.3.3 mapper层（相当于dao层）

package com.ljf.spring.ssm.demo.mapper;

import com.ljf.spring.ssm.demo.bean.Account;

import java.util.List;

public interface AccountMapper {
    // 查询所有账户
    public List<Account> findAll();

    // 保存帐户信息
    public void saveAccount(Account account);
}

2.3.4 bean层

package com.ljf.spring.ssm.demo.bean;

import java.io.Serializable;

/**
 * @ClassName: Account
 * @Description: TODO
 * @Author: liujianfu
 * @Date: 2021/02/19 23:21:27 
 * @Version: V1.0
 **/
public class Account implements Serializable {
    private Integer id;
    private String accountName;
    private Double money;

    public Integer getId() {
        return id;
    }

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

    public String getAccountName() {
        return accountName;
    }

    public void setAccountName(String accountName) {
        this.accountName = accountName;
    }

    public Double getMoney() {
        return money;
    }

    public void setMoney(Double money) {
        this.money = money;
    }

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

2.4 Resource下配置文件的配置

2.4.1 log4j的配置

######################
## set log levels
######################
log4j.rootLogger=DEBUG,info,CONSOLE,FILEOUT
#DEBUG,CONSOLE,FILE,ROLLING_FILE,MAIL,DATABASE
log4j.addivity.org.apache=true
######################
## CONSOLE Appender ##
######################
log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
log4j.appender.Threshold=DEBUG
log4j.appender.CONSOLE.Target=System.out
log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
log4j.appender.CONSOLE.layout.ConversionPattern=[%-5p][%d{yyyy-MM-dd HH\:mm\:ss,SSS}][%c] \:%m%n
#log4j.appender.CONSOLE.layout.ConversionPattern=[framework] %d - %c -%-4r [%t] %-5p %c %x - %m%n\u00A0
#log4j.appender.CONSOLE.layout.ConversionPattern=[start]%d{DATE}[DATE]%n%p[PRIORITY]%n%x[NDC]%n%t[THREAD] n%c[CATEGORY]%n%m[MESSAGE]%n%n
######################
## Rolling File Appender
######################
log4j.appender.FILEOUT=org.apache.log4j.RollingFileAppender
log4j.appender.FILEOUT.File=E:/logs/allError.log
#log4j.appender.FILEOUT.Threshold=ALL
log4j.appender.FILEOUT.Threshold=INFO
log4j.appender.FILEOUT.Append=true
log4j.appender.fileout.MaxFileSize=1000KB
#log4j.appender.ROLLING_FILE.MaxBackupIndex=1
log4j.appender.FILEOUT.layout=org.apache.log4j.PatternLayout
log4j.appender.FILEOUT.layout.ConversionPattern=[%-5p][%d{yyyy-MM-dd HH\:mm\:ss,SSS}][%c] \:%m%n
#log4j.appender.CONSOLE.layout.ConversionPattern=[framework] %d - %c -%-4r [%t] %-5p %c %x - %m%n\u00A0
#######################
#info log
log4j.logger.info=info
log4j.appender.info=org.apache.log4j.DailyRollingFileAppender 
log4j.appender.info.DatePattern='_'yyyy-MM-dd'.log'
log4j.appender.info.File=d:/info.log
log4j.appender.info.Append=true
log4j.appender.info.Threshold=INFO
log4j.appender.info.layout=org.apache.log4j.PatternLayout 
log4j.appender.info.layout.ConversionPattern=[%-5p][%d{yyyy-MM-dd HH\:mm\:ss,SSS}][%c] \:%m%n
### File Appender
#######################
#log4j.appender.FILE=org.apache.log4j.FileAppender
#log4j.appender.FILE.File=E:/logs/all.log
#log4j.appender.FILE.Append=true
#log4j.appender.FILE.layout=org.apache.log4j.PatternLayout
#log4j.appender.CONSOLE.layout.ConversionPattern=[%-5p][%d{yyyy-MM-dd HH\:mm\:ss,SSS}][%c] \:%m%n
##log4j.appender.CONSOLE.layout.ConversionPattern=[framework] %d - %c -%-4r [%t] %-5p %c %x - %m%n\u00A0
#####################
## Socket Appender
#####################
#log4j.appender.SOCKET=org.apache.log4j.RollingFileAppender
#log4j.appender.SOCKET.RemoteHost=localhost
#log4j.appender.SOCKET.Port=5001
#log4j.appender.SOCKET.LocationInfo=true
## Set up for Log Facter 5
#log4j.appender.SOCKET.layout=org.apache.log4j.PatternLayout
#log4j.appender.SOCET.layout.ConversionPattern=[start]%d{DATE}[DATE]%n%p[PRIORITY]%n%x[NDC]%n%t[THREAD]%n%c[CATEGORY]%n%m[MESSAGE]%n%n
#########################
## Log Factor 5 Appender
#########################
#log4j.appender.LF5_APPENDER=org.apache.log4j.lf5.LF5Appender
#log4j.appender.LF5_APPENDER.MaxNumberOfRecords=2000
########################
## SMTP Appender
########################
#log4j.appender.MAIL=org.apache.log4j.net.SMTPAppender
#log4j.appender.MAIL.Threshold=FATAL
#log4j.appender.MAIL.BufferSize=10
#[email protected]
#log4j.appender.MAIL.SMTPHost=mail.openwolf.com
#log4j.appender.MAIL.Subject=Log4J Message
#[email protected]
#log4j.appender.MAIL.layout=org.apache.log4j.PatternLayout
#log4j.appender.MAIL.layout.ConversionPattern=[framework] %d - %c -%-4r [%t] %-5p %c %x - %m%n
#########################
## JDBC Appender
########################
#log4j.appender.DATABASE=org.apache.log4j.jdbc.JDBCAppender
#log4j.appender.DATABASE.URL=jdbc:mysql://localhost:3306/test
#log4j.appender.DATABASE.driver=com.mysql.jdbc.Driver
#log4j.appender.DATABASE.user=root
#log4j.appender.DATABASE.password=root
#log4j.appender.DATABASE.sql=INSERT INTO LOG4J (Message) VALUES ('[framework] %d - %c -%-4r [%t] %-5p %c %x - %m%n')
#log4j.appender.DATABASE.layout=org.apache.log4j.PatternLayout
#log4j.appender.DATABASE.layout.ConversionPattern=[framework] %d - %c -%-4r [%t] %-5p %c %x - %m%n
#log4j.appender.A1=org.apache.log4j.DailyRollingFileAppender
#log4j.appender.A1.File=SampleMessages.log4j
#log4j.appender.A1.DatePattern=yyyyMMdd-HH'.log4j'
#log4j.appender.A1.layout=org.apache.log4j.xml.XMLLayout
####################
### myself Appender
####################
#log4j.appender.im = net.cybercorlin.util.logger.appender.IMAppender
#log4j.appender.im.host = mail.cybercorlin.net
#log4j.appender.im.username = username
#log4j.appender.im.password = password
#log4j.appender.im.recipient = [email protected]
#log4j.appender.im.layout=org.apache.log4j.PatternLayout
#log4j.appender.im.layout.ConversionPattern =[framework] %d - %c -%-4r [%t] %-5p %c %x - %m%n

2.4.2 mbaits-jdbc的配置

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/nongda
jdbc.username=root
jdbc.password=

2.4.3 mbaitsConfig的配置

<?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="mybaits-jdbc.properties"></properties>
    <!--1. 起别名-->
    <typeAliases>
      <typeAlias type="com.ljf.spring.ssm.demo.bean.Account" alias="yonghu"></typeAlias>
    </typeAliases>
    <!-- 2.注册类型注册器
    <typeHandlers>
        <typeHandler handler="com.mybaits.demo.handler.DataTypeTransfer"></typeHandler>
    </typeHandlers>
    -->
    <!--3.配置分页插件   -->
    <plugins>
        <plugin interceptor="com.github.pagehelper.PageHelper">
            <property name="dialect" value="mysql"/>
        </plugin>
    </plugins>

<!-- 4.数据源环境 -->
    <environments default="development">
        <environment id="development">
            <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>
 <!-- 5.xxxmapper.xml都要在mybaits.config.xml文件中注册-->
    <mappers>
        <mapper resource="com/mybaits/mapper/AccountMapper.xml"></mapper>
    </mappers>

</configuration>

2.4.4 spring文件的配置

<?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">
    <!--step1：开启注解的扫描，希望处理service和dao，但是controller不需要Spring框架去处理-->
    <context:component-scan base-package="com.ljf.spring.ssm.demo" >
        <!--排除controller的扫描，配置哪些注解不扫描-->
        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller" />
    </context:component-scan>
    <!--注册accountserviceImpl这个bean
    <bean id="accountService" class="com.ljf.spring.ssm.demo.service.impl.AccountServiceImpl"></bean>
-->
</beans>

2.4.5  spring-mvc文件的配置

<?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">

    <!--step1：开启注解扫描，只扫描Controller注解-->
    <context:component-scan base-package="com.ljf.spring.ssm.demo">
        <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller" />
    </context:component-scan>

    <!--step2：配置的视图解析器对象-->
    <bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/pages/"/>
        <property name="suffix" value=".jsp"/>
    </bean>

    <!--step3：过滤静态资源-->
    <mvc:resources location="/css/" mapping="/css/**" />
    <mvc:resources location="/images/" mapping="/images/**" />
    <mvc:resources location="/js/" mapping="/js/**" />

    <!--step4：开启SpringMVC注解的支持-->
    <mvc:annotation-driven/>

</beans>

2.4.6  mybaits的映射文件（AccountMapper）

需要手动一层层的创建目录：com\mybaits\mapper\AccountMapper.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="yonghuMapper">  -->
<mapper namespace="com.ljf.spring.ssm.demo.mapper.AccountMapper">
     <!-- 查询， 在mybaitsconfig.xml文件中给起了别名 -->
    <select id="findAll" resultType="yonghu">
        select id,account_name accountName,money from tb_account
    </select>
    <!-- 添加-->
    <insert id="saveAccount" parameterType="com.ljf.spring.ssm.demo.bean.Account">
        insert into tb_account(id,account_name,money) values(#{id},#{accountName},#{money})
    </insert>


</mapper>

2.4.7 结构概览

2.5 静态资源目录的创建

2.6 web页面的配置

2.6.1 index.jsp

<%--
  Created by IntelliJ IDEA.
  User: jurfl
  Date: 2021/2/20
  Time: 14:51
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
<a href="${pageContext.request.contextPath}/account/findAll">测试查询</a>

<h3>账户录入页面</h3>

<form action="${pageContext.request.contextPath}/account/save" method="post">
    姓名：<input type="text" name="accountName" /><br/>
    金额：<input type="text" name="money" /><br/>
    <input type="submit" value="保存"/><br/>
</form>

</body>
</body>
</html>

2.6.2 list页面的创建

需要在web-info下面创建pages目录，然后将account_list页面存放此目录下

<%--
  Created by IntelliJ IDEA.
  User: jurfl
  Date: 2021/2/20
  Time: 14:56
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
<h3>查询所有的帐户</h3>
<table border="1" cellpadding="1" cellspacing="1" width="500px" >
    <tr>
        <td>id</td>
        <td>姓名</td>
        <td>金额</td>
    </tr>
<c:forEach items="${list}" var="account">
    <tr>
        <td>${account.id}</td>
        <td>${account.accountName}</td>
        <td>${account.money}</td>
    </tr>
</c:forEach>
</table>

</body>
</html>

2.7 web.xml的配置

<?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">
    <display-name>Archetype Created Web Application</display-name>

    <!--step1：配置Spring的监听器，默认只加载WEB-INF目录下的applicationContext.xml配置文件-->
    <!--设置配置文件的路径 这里是放到了resouces目录下-->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:applicationContext.xml</param-value>
    </context-param>
    <!--   需要多个加载，可以多起几个context-param标签
    <context-param>
        <param-name/>
        <param-value/>
    </context-param>
    -->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    <!--step2：配置前端控制器-->
    <servlet>
        <servlet-name>dispatcherServlet</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <!--加载spring-mvc.xml配置文件-->
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:spring-mvc.xml</param-value>
        </init-param>
        <!--启动服务器，创建该servlet-->
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>dispatcherServlet</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>

    <!--step3：解决中文乱码的过滤器-->
    <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>
</web-app>

2.8 数据库设计

CREATE TABLE `tb_account` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `account_name` varchar(255) DEFAULT NULL,
  `money` double(255,0) DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

2.9 发布部署

2.9.1 配置artifacts

选中项目，选择 file---》project struct，然后按照下面操作

2.9.2 配置tomcat

1.找到edit configuration

2.设置tomcat

3.设置部署 

2.10 启动测试

2.10.1 启动

2.10.2 页面录入

2.10.3 页面查询列表

三.ssm工程的配置（使用spring和mybaits的整合，session交给spring容器管理）

在前面的操作方式中，每次service即业务层与数据库交互，都要开启session，关闭session，比较累赘，现在改为使用spring容器来实现管理。

1.将session工程交给spring容器进行管理，从容器中获得执行操作的mapper实例即可。

2.将事务的控制交给spring容器进行声明式事务控制。

3.1 配置dao层

3.2 service的实现层

package com.ljf.spring.ssm.demo.service.impl;

import com.ljf.spring.ssm.demo.bean.Account;
import com.ljf.spring.ssm.demo.mapper.AccountMapper;
import com.ljf.spring.ssm.demo.service.AccountService;
import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.core.annotation.Order;
import org.springframework.stereotype.Service;

import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;

/**
 * @ClassName: AccountServiceImpl
 * @Description: TODO
 * @Author: liujianfu
 * @Date: 2021/02/19 23:25:38 
 * @Version: V1.0
 **/
@Service  //相当于    <!--注册accountserviceImpl这个bean<bean id="accountService" class="com.ljf.spring.ssm.demo.service.impl.AccountServiceImpl"></bean>
public class AccountServiceImpl implements AccountService {
@Autowired
private AccountMapper accountMapper;
    @Override
    public List<Account> findAll()  {
        List<Account> accountList=new ArrayList<>();
        /**

        try {
            InputStream resourceAsStream = Resources.getResourceAsStream("mybaitsConfig.xml");
            SqlSessionFactory sqlSessionFactory = new SqlSessionFactoryBuilder().build(resourceAsStream);
            SqlSession sqlSession = sqlSessionFactory.openSession(true);
           AccountMapper mapper = sqlSession.getMapper(AccountMapper.class);
            accountList = mapper.findAll();
            sqlSession.close();
        }
        catch (Exception e){
            e.printStackTrace();
        }
        return accountList;
         **/
        accountList =accountMapper.findAll();
        return accountList;
    }

    @Override
    public void saveAccount(Account account) {
        List<Account> accountList=new ArrayList<>();
        /**
        try {
            InputStream resourceAsStream = Resources.getResourceAsStream("mybaitsConfig.xml");
            SqlSessionFactory sqlSessionFactory = new SqlSessionFactoryBuilder().build(resourceAsStream);
            SqlSession sqlSession = sqlSessionFactory.openSession(true);
            AccountMapper mapper = sqlSession.getMapper(AccountMapper.class);
            mapper.saveAccount(account);
            sqlSession.commit();
            sqlSession.close();
        }
        catch (Exception e){
            e.printStackTrace();
        }
         **/
        accountMapper.saveAccount(account);
    }
}

3.3 配置spring的配置文件 （applicationContext.xml）

1.其实就是将mybaits的session交个spring的容器进行管理

2.在applicationContext.xml文件中加载引入mybaitsConfig-spring.xml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"
       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">
    <!--step1：开启注解的扫描，希望处理service和dao，但是controller不需要Spring框架去处理-->
    <context:component-scan base-package="com.ljf.spring.ssm.demo" >
        <!--排除controller的扫描，配置哪些注解不扫描-->
        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller" />
    </context:component-scan>
    <!--注册accountserviceImpl这个bean
    <bean id="accountService" class="com.ljf.spring.ssm.demo.service.impl.AccountServiceImpl"></bean>
-->

    <!--Spring整合MyBatis框架-->
    <!--step2:加载jdbc连接信息 -->
    <context:property-placeholder location="classpath:mybaits-jdbc.properties"></context:property-placeholder>
    <!--step3：配置连接池-->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="${jdbc.driver}"/>
        <property name="jdbcUrl" value="${jdbc.url}"/>
        <property name="user" value="${jdbc.username}"/>
        <property name="password" value="${jdbc.password}"/>
    </bean>

    <!--step4：配置SqlSessionFactory工厂-->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <!--加载mybaits的核心配置文件 -->
        <property name="configLocation" value="classpath:mybaitsConfig-spring.xml"></property>
    </bean>

    <!--step5：配置AccountDao接口对应的AccountMapper.xml的路径-->
    <bean id="mapperScanner" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.ljf.spring.ssm.demo.mapper"/>
    </bean>

    <!--step6：配置Spring框架声明式事务管理-->
    <!--配置事务管理器-->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource" />
    </bean>

    <!--配置事务通知-->
    <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 织入增强-->
    <aop:config>
        <aop:advisor advice-ref="txAdvice" pointcut="execution(* com.ljf.spring.ssm.demo.service.impl.*ServiceImpl.*(..))"/>
    </aop:config>
</beans>

3.5 mybaitsConfig-spring.xml的配置文件

<?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>
    <!--1. 起别名-->
    <typeAliases>
      <typeAlias type="com.ljf.spring.ssm.demo.bean.Account" alias="yonghu"></typeAlias>
    </typeAliases>
    <!-- 2.注册类型注册器
    <typeHandlers>
        <typeHandler handler="com.mybaits.demo.handler.DataTypeTransfer"></typeHandler>
    </typeHandlers>
    -->
    <!--3.配置分页插件   -->
    <plugins>
        <plugin interceptor="com.github.pagehelper.PageHelper">
            <property name="dialect" value="mysql"/>
        </plugin>
    </plugins>
 <!-- 4.xxxmapper.xml都要在mybaits.config.xml文件中注册-->
    <mappers>
        <mapper resource="com/mybaits/mapper/AccountMapper.xml"></mapper>
    </mappers>

</configuration>

3.6 部署

1.启动

2.录入界面

3.列表页面