SSM整合(实现简单的增删改查)

SSM整合（spring+spring-mvc+mybatis）


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一.简介

Spring：是一个开源框架，它由Rod Johnson创建。它是为了解决企业应用开发的复杂性而创建的。Spring使用基本的JavaBean来完成以前只可能由EJB完成的事情。然而，Spring的用途不仅限于服务器端的开发。从简单性、可测试性和松耦合的角度而言，任何Java应用都可以从Spring中受益。
Spring MVC：属于SpringFrameWork的后续产品，已经融合在Spring Web Flow里面。Spring 框架提供了构建 Web 应用程序的全功能 MVC 模块。使用 Spring 可插入的 MVC 架构，从而在使用Spring进行WEB开发时，可以选择使用Spring的Spring MVC框架或集成其他MVC开发框架，如Struts1(现在一般不用)，Struts 2(一般老项目使用)等等。
MyBatis ：是一款优秀的持久层框架，它支持定制化 SQL、存储过程以及高级映射。MyBatis 避免了几乎所有的 JDBC 代码和手动设置参数以及获取结果集。MyBatis 可以使用简单的 XML 或注解来配置和映射原生信息，将接口和 Java 的 POJOs(Plain Ordinary Java Object,普通的 Java对象)映射成数据库中的记录。

二.开发工具

  • IntelliJ IDEA 2019.3.1
  • apache-tomcat-9.0.20
  • JDK 1.8.0_121
  • MySQL 5.0.67
  • apache-maven-3.6.3

三.开发步骤

1.先创建工程（按步骤来就行）

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然后一直点next就行

2.补全工程结构

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3.开始配置文件

导入pom相关依赖

<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/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>hugo</groupId>
  <artifactId>example</artifactId>
  <packaging>war</packaging>
  <version>1.0-SNAPSHOT</version>
  <name>hugo Maven Webapp</name>
  <url>http://maven.apache.org</url>

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <!-- spring版本号 -->
    <spring.version>4.1.4.RELEASE</spring.version>
    <!-- mybatis版本号 -->
    <mybatis.version>3.2.8</mybatis.version>
    <!-- log4j日志文件管理包版本 -->
    <slf4j.version>1.7.7</slf4j.version>
    <log4j.version>1.2.17</log4j.version>
    <!-- jackson包版本 -->
    <jackson.version>2.5.0</jackson.version>
  </properties>
  
  <dependencies>

    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
    <!-- mybatis核心包 -->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis</artifactId>
      <version>${mybatis.version}</version>
    </dependency>
    <!-- mybatis/spring包 -->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis-spring</artifactId>
      <version>1.2.2</version>
    </dependency>

    <!--spring单元测试依赖 -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-test</artifactId>
      <version>${spring.version}</version>
      <scope>test</scope>
    </dependency>

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

    <!-- spring核心包 -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-core</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-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-tx</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-jdbc</artifactId>
      <version>${spring.version}</version>
    </dependency>

    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>javax.servlet-api</artifactId>
      <version>3.0.1</version>
      <scope>provided</scope>
    </dependency>

    <dependency>
      <groupId>javax.servlet.jsp</groupId>
      <artifactId>jsp-api</artifactId>
      <version>2.2</version>
      <scope>provided</scope>
    </dependency>

    <!-- 导入Mysql数据库链接jar包 -->
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>5.1.30</version>
    </dependency>

    <!-- 导入dbcp的jar包，用来在applicationContext.xml中配置数据库 -->
    <dependency>
      <groupId>commons-dbcp</groupId>
      <artifactId>commons-dbcp</artifactId>
      <version>1.2.2</version>
    </dependency>

    <!-- JSTL标签类 -->
    <dependency>
      <groupId>jstl</groupId>
      <artifactId>jstl</artifactId>
      <version>1.2</version>
    </dependency>
    <!-- 日志文件管理包 -->
    <!-- log start -->
    <dependency>
      <groupId>log4j</groupId>
      <artifactId>log4j</artifactId>
      <version>${log4j.version}</version>
    </dependency>


    <!-- 格式化对象，方便输出日志 -->
    <dependency>
      <groupId>com.alibaba</groupId>
      <artifactId>fastjson</artifactId>
      <version>1.1.41</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 -->
    <!-- 映入JSON -->
    <dependency>
      <groupId>org.codehaus.jackson</groupId>
      <artifactId>jackson-mapper-asl</artifactId>
      <version>1.9.13</version>
    </dependency>

    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-databind</artifactId>
      <version>2.1.0</version>
    </dependency>
    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-annotations</artifactId>
      <version>2.1.0</version>
    </dependency>

    <!-- 上传组件包 -->
    <dependency>
      <groupId>commons-fileupload</groupId>
      <artifactId>commons-fileupload</artifactId>
      <version>1.3.1</version>
    </dependency>
    <dependency>
      <groupId>commons-io</groupId>
      <artifactId>commons-io</artifactId>
      <version>2.4</version>
    </dependency>
    <dependency>
      <groupId>commons-codec</groupId>
      <artifactId>commons-codec</artifactId>
      <version>1.9</version>
    </dependency>

    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.11</version>
      <!-- 表示开发的时候引入，发布的时候不会加载此包 -->
      <scope>test</scope>
    </dependency>

    <!--Spring test相关依赖-->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-test</artifactId>
      <version>4.1.7.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>RELEASE</version>
    </dependency>

    <dependency>
      <groupId>org.jsoup</groupId>
      <artifactId>jsoup</artifactId>
      <version>1.8.1</version>
    </dependency>

    <dependency>
      <groupId>net.sourceforge.htmlunit</groupId>
      <artifactId>htmlunit</artifactId>
      <version>2.15</version>
    </dependency>


    <dependency>
      <groupId>org.seleniumhq.selenium</groupId>
      <artifactId>selenium-java</artifactId>
      <version>2.33.0</version>
    </dependency>

    <dependency>
      <groupId>us.codecraft</groupId>
      <artifactId>webmagic-core</artifactId>
      <version>0.6.1</version>
    </dependency>
    <dependency>
      <groupId>us.codecraft</groupId>
      <artifactId>webmagic-extension</artifactId>
      <version>0.6.1</version>
    </dependency>


  </dependencies>
  <build>
    <finalName>hugo</finalName>
  <resources>
    <resource>
      <directory>src/main/java</directory>
      <includes>
        <include>**/*.xml</include>
      </includes>
      <filtering>true</filtering>
    </resource>
  </resources>
  </build>

</project>

web.xml相关配置

<!DOCTYPE web-app PUBLIC
 "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
 "http://java.sun.com/dtd/web-app_2_3.dtd" >

<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>Archetype Created Web Application</display-name>
  <!-- Spring和mybatis的配置文件 -->
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:spring-mybatis.xml</param-value>
  </context-param>

  <!--Log4j配置-->
  <context-param>
    <param-name>log4jRefreshInterval</param-name>
    <param-value>60000</param-value>
  </context-param>
  <listener>
    <listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>
  </listener>


  <!-- 编码过滤器 -->
  <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>

  <!--Spring监听器 ApplicationContext 载入 -->
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
  <!-- 防止Spring内存溢出监听器 -->
  <listener>
    <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>
  </listener>


  <!-- Spring MVC 核心配置开始 -->
  <servlet>
    <servlet-name>mvc-dispatcher</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <!-- 可以通过contextConfigLocation来自定义SpringMVC配置文件的位置，如不指定，则默认在WEB-INF目录下，名称为[<servlet-name>]-servlet.xml，
         此时文件名必须为[<servlet-name>]-servlet.xml，否则会出错-->
    <!--以下init-param是自定义SpringMVC的配置文件的位置 -->
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:spring-mvc.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
    <async-supported>true</async-supported>
  </servlet>


  <!-- 拦截设置 -->
  <servlet-mapping>
    <servlet-name>mvc-dispatcher</servlet-name>
    <!-- 此处可以可以配置成*.do，对应struts的后缀习惯 -->
    <url-pattern>/</url-pattern>
  </servlet-mapping>
  <!-- Spring MVC 核心配置结束 -->

  <!-- 配置SESSION超时，单位是分钟 -->
  <session-config>
    <session-timeout>15</session-timeout>
  </session-config>


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


</web-app>

数据库建表并配置jdbc.properties
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driver=com.mysql.jdbc.Driver
url=jdbc:mysql://localhost:3306/test1?useUnicode=true&characterEncoding=utf-8
username=root
password=x5
#定义初始连接数
initialSize=0
#定义最大连接数
maxActive=20
#定义最大空闲
maxIdle=20
#定义最小空闲
minIdle=1
#定义最长等待时间
maxWait=60000

在log4j.properties文件中配置日志设定

#定义LOG输出级别
log4j.rootLogger=INFO,Console,File
#定义日志输出目的地为控制台
log4j.appender.Console=org.apache.log4j.ConsoleAppender
log4j.appender.Console.Target=System.out
#可以灵活地指定日志输出格式，下面一行是指定具体的格式
log4j.appender.Console.layout = org.apache.log4j.PatternLayout
log4j.appender.Console.layout.ConversionPattern=[%c] - %m%n

#文件大小到达指定尺寸的时候产生一个新的文件
log4j.appender.File = org.apache.log4j.RollingFileAppender
#指定输出目录
log4j.appender.File.File = logs/ssm.log
#定义文件最大大小
log4j.appender.File.MaxFileSize = 10MB
# 输出所以日志，如果换成DEBUG表示输出DEBUG以上级别日志
log4j.appender.File.Threshold = ALL
log4j.appender.File.layout = org.apache.log4j.PatternLayout
log4j.appender.File.layout.ConversionPattern =[%p] [%d{yyyy-MM-dd HH\:mm\:ss}][%c]%m%n

编写是实体类

package com.springmvc.pojo;

public class Admin {
    private Integer id;

    private String name;

    private String password;

    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 == null ? null : name.trim();
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password == null ? null : password.trim();
    }

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

编写service层

package com.springmvc.service;

import com.springmvc.dao.AdminMapper;
import com.springmvc.pojo.Admin;
import com.sun.jna.platform.win32.Netapi32Util;
import org.springframework.stereotype.Service;
import javax.annotation.Resource;
import java.util.List;

@Service("AdminService")

public class AdminService {
    @Resource
    private AdminMapper adminMapper;
    /**
     * 添加数据
     */
    public void save(Admin admin) {
        adminMapper.save(admin);
    }

    /**
     * 根据id修改
     * @param admin
     * @return
     */
    public boolean update(Admin admin) {
        return adminMapper.update(admin);
    }

    /**
     * 根据id删除
     * @param id
     * @return
     */
    public boolean delete(int id) {
        return adminMapper.delete(id);
    }

    /**
     * 根据id查询
     * @param id
     * @return
     */
    public Admin findById(int id) {
        Admin admin=adminMapper.findById(id);
        return admin;
    }

    /**
     * 查询所有
     * @return
     */
    public List<Admin> findAll() {
        List<Admin> findallList=adminMapper.findAll();
        return findallList;
    }
    

}

编写dao层

package com.springmvc.dao;

import com.springmvc.pojo.Admin;

import java.util.List;

public interface AdminMapper {

    void save(Admin admin);
    boolean update(Admin admin);
    boolean delete(int id);
    Admin findById(int id);
    List<Admin> findAll();
    Admin login(Admin admin);

}

编写mapping层

<?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.springmvc.dao.AdminMapper" >
  <resultMap id="BaseResultMap" type="com.springmvc.pojo.Admin" >
    <id column="id" property="id" jdbcType="INTEGER" />
    <result column="name" property="name" jdbcType="VARCHAR" />
    <result column="password" property="password" jdbcType="VARCHAR" />
  </resultMap>


  <insert id="save" parameterType="com.springmvc.pojo.Admin">
        insert into admin(name,password) values(#{name},#{password})
    </insert>
  <update id="update" parameterType="com.springmvc.pojo.Admin">
        update admin set name=#{name},password=#{password} where id=#{id}
    </update>
  <delete id="delete" parameterType="int">
        delete from admin where id=#{id}
    </delete>
  <!-- mybsits_config中配置的alias类别名,也可直接配置resultType为类路径 -->
  <select id="findById" parameterType="int" resultType="com.springmvc.pojo.Admin">
        select id,name,password from admin where id=#{id}
    </select>
  <select id="findAll" resultType="com.springmvc.pojo.Admin">
        select id,name,password from admin
    </select>

    <select id="login" resultMap="BaseResultMap" parameterType="com.springmvc.pojo.Admin">
     select*from admin where name=#{name} and password=#{password}
  </select>

</mapper>

编写controller

package com.springmvc.controller;

import com.springmvc.pojo.Admin;
import com.springmvc.service.AdminService;
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.io.PrintWriter;
import java.util.List;

@Controller
public class main {

    @Autowired
    private AdminService adminService;

    /**
     * 获取所有信息
     * @param request
     * @param model
     * @return
     */
    @RequestMapping("/getAllUser")
    public String getAllUser(HttpServletRequest request, Model model){
        List<Admin> admin=adminService.findAll();
        System.out.println(admin);
        model.addAttribute("list",admin);
        request.setAttribute("list",admin);
        return "allUser";
    }

    /**
     * 添加信息
     * @param admin
     * @param model
     * @return
     */
    @RequestMapping("/addUser")
    public String addUser(Admin admin, Model model){
        adminService.save(admin);
        return "redirect:getAllUser";
    }

    /**
     * 修改信息
     * @param admin
     * @param request
     * @param model
     * @return
     */
    @RequestMapping("/updateUser")
    public String updateUser(Admin admin,HttpServletRequest request,Model model){
        if(adminService.update(admin)){
            admin=adminService.findById(admin.getId());
            request.setAttribute("admin",admin);
            model.addAttribute("admin",admin);
            return "redirect:getAllUser";
        }else{
            return "error";
        }
    }

    /**
     * 根据id查询
     * @param id
     * @param request
     * @param model
     * @return
     */
    @RequestMapping("/getUser")
    public String getUser(int id,HttpServletRequest request,Model model){
        request.setAttribute("admin",adminService.findById(id));
        model.addAttribute("admin",adminService.findById(id));
        return "editUser";
    }

    /**
     * 删除用户
     * @param id
     */
    @RequestMapping("/delUser")
    public String delUser(int id){
        adminService.delete(id);
        return "redirect:getAllUser";
    }

    /**
     * 注册账号
     * @param admin
     * @param model
     * @return
     */
    @RequestMapping("/register")
    public String register(Admin admin, Model model){
        adminService.save(admin);
        return "login";
    }



}

spring-mvc.xml：（spring mvc配置文件）

<?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:p="http://www.springframework.org/schema/p"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:mvc="http://www.springframework.org/schema/mvc"
	xsi:schemaLocation="http://www.springframework.org/schema/beans  
                        http://www.springframework.org/schema/beans/spring-beans-3.1.xsd  
                        http://www.springframework.org/schema/context  
                        http://www.springframework.org/schema/context/spring-context-3.1.xsd  
                        http://www.springframework.org/schema/mvc  
                        http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">
	<!-- 自动扫描该包，使SpringMVC认为包下用了@controller注解的类是控制器 -->
	<context:component-scan base-package="com.springmvc.controller" />

	<!--避免IE执行AJAX时，返回JSON出现下载文件 -->
	<bean id="mappingJacksonHttpMessageConverter"
		class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
		<property name="supportedMediaTypes">
			<list>
				<value>text/html;charset=UTF-8</value>
			</list>
		</property>
	</bean>
	<!-- 启动SpringMVC的注解功能，完成请求和注解POJO的映射 -->
	<bean
		class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
		<property name="messageConverters">
			<list>
				<ref bean="mappingJacksonHttpMessageConverter" />	<!-- JSON转换器 -->
			</list>
		</property>
	</bean>
	<!-- 定义跳转的文件的前后缀 ，视图模式配置-->
	<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<!-- 这里的配置我的理解是自动给后面action的方法return的字符串加上前缀和后缀，变成一个 可用的url地址 -->
		<property name="prefix" value="/" />
		<property name="suffix" value=".jsp" />
	</bean>
	
	<!-- 配置文件上传，如果没有使用文件上传可以不用配置，当然如果不配，那么配置文件中也不必引入上传组件包 -->
	<bean id="multipartResolver"  
        class="org.springframework.web.multipart.commons.CommonsMultipartResolver">  
        <!-- 默认编码 -->
        <property name="defaultEncoding" value="utf-8" />  
        <!-- 文件大小最大值 -->
        <property name="maxUploadSize" value="10485760000" />  
        <!-- 内存中的最大值 -->
        <property name="maxInMemorySize" value="40960" />  
    </bean> 

</beans>

在mybatis-config.xml文件中配置mybtis框架

<?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>
    <!--配置全局属性-->
    <settings>
        <setting name="logImpl" value="LOG4J" />
        <setting name="cacheEnabled" value="true"/>
    </settings>
</configuration>

spring-mybatis.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:p="http://www.springframework.org/schema/p"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:mvc="http://www.springframework.org/schema/mvc"
	xsi:schemaLocation="http://www.springframework.org/schema/beans  
                        http://www.springframework.org/schema/beans/spring-beans-3.1.xsd  
                        http://www.springframework.org/schema/context  
                        http://www.springframework.org/schema/context/spring-context-3.1.xsd  
                        http://www.springframework.org/schema/mvc  
                        http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">
	<!-- 自动扫描 -->
	<context:component-scan base-package="com.springmvc" />
	<!-- 引入配置文件 -->
	<bean id="propertyConfigurer"
		class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
		<property name="location" value="classpath:jdbc.properties" />
	</bean>

	<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
		destroy-method="close">
		<property name="driverClassName" value="${driver}" />
		<property name="url" value="${url}" />
		<property name="username" value="${username}" />
		<property name="password" value="${password}" />
		<!-- 初始化连接大小 -->
		<property name="initialSize" value="${initialSize}"></property>
		<!-- 连接池最大数量 -->
		<property name="maxActive" value="${maxActive}"></property>
		<!-- 连接池最大空闲 -->
		<property name="maxIdle" value="${maxIdle}"></property>
		<!-- 连接池最小空闲 -->
		<property name="minIdle" value="${minIdle}"></property>
		<!-- 获取连接最大等待时间 -->
		<property name="maxWait" value="${maxWait}"></property>
	</bean>

	<!-- spring和MyBatis完美整合，不需要mybatis的配置映射文件 -->
	<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
		<property name="dataSource" ref="dataSource" />
		<property name="configLocation" value="classpath:/mybatis-config.xml"></property>
		<!-- 自动扫描mapping.xml文件 -->
		<property name="mapperLocations" value="classpath:com/springmvc/mapping/*.xml"></property>

	</bean>

	<!-- DAO接口所在包名，Spring会自动查找其下的类 -->
	<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
		<property name="basePackage" value="com.springmvc.dao" />
		<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
	</bean>

	<!-- (事务管理)transaction manager, use JtaTransactionManager for global tx -->
	<bean id="transactionManager"
		class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
		<property name="dataSource" ref="dataSource" />
	</bean>

</beans>

整到这里歇一会
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主页和增删改查的jsp文件

<%--
  Created by IntelliJ IDEA.
  User: User
  Date: 2018/4/10
  Time: 14:22
  To change this template use File | Settings | File Templates.
--%>
<%
    String path = request.getContextPath();
    String basePath = request.getScheme() + "://"
            + request.getServerName() + ":" + request.getServerPort()
            + path + "/";
%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ page isELIgnored="false" %>
<html>
<base href="<%=basePath%>">
<title>首页</title>
</head>
<body>
    <h5 style="align-content: center">
        <a href="<%=basePath%>getAllUser">进入用户管理页</a>
    </h5>
</body>
</html>


<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
    String path = request.getContextPath();
    String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<%@ page isELIgnored="false" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
    <base href="<%=basePath%>">
    <title>添加用户</title>
    <script type="text/javascript">
        function addUser(){
            var form = document.forms[0];
            form.action = "<%=basePath%>addUser";
            form.method="post";
            form.submit();
        }
    </script>
</head>
<body style="align-content: center">
<h1><%=path%>添加用户</h1>
<form action="" name="userForm">
    账号：<input type="text" name="name"><br>
    密码：<input type="password" name="password"><br/>
    <input type="button" value="添加" οnclick="addUser()">
</form>
</body>
</html>

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
    String path = request.getContextPath();
    String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page isELIgnored="false" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
    <base href="<%=basePath%>">
    <script type="text/javascript" src="js/jquery-1.8.3.js"></script>
    <title>用户列表</title>
</head>
<body style="align-content: center">
<h6><a href="<%=basePath%>addUser.jsp">添加用户</a></h6>
<table border="1">
    <tbody>
    <tr>
        <th>ID</th>
        <th>账号</th>
        <th>密码</th>
        <th>操作</th>
    </tr>
        <c:forEach items="${list}" var="admin">
            <tr>
                <td>${admin.id}</td>
                <td>${admin.name}</td>
                <td>${admin.password}</td>
                <td>
                    <a href="<%=basePath%>getUser?id=${admin.id}">修改</a>
                    <a href="<%=basePath%>delUser?id=${admin.id}">删除</a>
                </td>
            </tr>
        </c:forEach>
    </tbody>
</table>
</body>
</html>

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
    String path = request.getContextPath();
    String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%@ page isELIgnored="false" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
    <base href="<%=basePath%>">
    <title>修改用户</title>
    <script type="text/javascript">
        function updateUser(){
            var form = document.forms[0];
            form.action = "<%=basePath%>updateUser";
            form.method="post";
            form.submit();
        }
    </script>
</head>
<body style="align-content: center">
<h1>修改用户</h1>
<form action="" name="adminForm">
    <input type="hidden" name="id" value="${admin.id }"/>
    账号：<input type="text" name="name" value="${admin.name }"/><br>
    密码：<input type="text" name="password" value="${admin.password }"/><br>
    <input type="button" value="修改" οnclick="updateUser()"/>
</form>
</body>
</html>

四.效果图

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五.结束

写的不好，看图说话
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有很多缺陷，希望各位大神多多指教！
SSM整合和简单的增删改查到此结束！
留个赞吧！
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                     谢谢各位大神观看！
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