SSM整合

一、环境

• 数据库：mysql8
• 数据库连接池：c3p0
• spring：5
• mybatis：3
• 日志框架：log4j

二、项目目录

三、整合步骤

1、创建一个maven工程

pom.xml 标题头如下：

<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>4.0.0modelVersion>
    <groupId>组IDgroupId>
    <artifactId>项目名artifactId>
    <packaging>warpackaging>
    <version>1.0-SNAPSHOTversion>

pom.xml

<dependencies>
    <dependency>
        <groupId>junitgroupId>
        <artifactId>junitartifactId>
        <version>4.12version>
        <scope>testscope>
    dependency>
    <dependency>
        <groupId>org.springframeworkgroupId>
        <artifactId>spring-contextartifactId>
        <version>5.0.6.RELEASEversion>
    dependency>
    <dependency>
        <groupId>org.springframeworkgroupId>
        <artifactId>spring-webartifactId>
        <version>5.0.6.RELEASEversion>
    dependency>
    <dependency>
        <groupId>org.springframeworkgroupId>
        <artifactId>spring-webmvcartifactId>
        <version>5.0.6.RELEASEversion>
    dependency>
    <dependency>
        <groupId>org.springframeworkgroupId>
        <artifactId>spring-txartifactId>
        <version>5.0.6.RELEASEversion>
    dependency>
    <dependency>
        <groupId>org.springframeworkgroupId>
        <artifactId>spring-aspectsartifactId>
        <version>5.0.6.RELEASEversion>
    dependency>
    <dependency>
        <groupId>org.springframeworkgroupId>
        <artifactId>spring-ormartifactId>
        <version>5.0.6.RELEASEversion>
    dependency>
    <dependency>
        <groupId>javax.servletgroupId>
        <artifactId>javax.servlet-apiartifactId>
        <version>3.1.0version>
        <scope>providedscope>
    dependency>
    <dependency>
        <groupId>javax.servlet.jspgroupId>
        <artifactId>jsp-apiartifactId>
        <version>2.2version>
        <scope>providedscope>
    dependency>
    <dependency>
        <groupId>org.slf4jgroupId>
        <artifactId>slf4j-log4j12artifactId>
        <version>1.7.25version>
        <scope>testscope>
    dependency>
    <dependency>
        <groupId>commons-logginggroupId>
        <artifactId>commons-loggingartifactId>
        <version>1.2version>
    dependency>
    <dependency>
        <groupId>org.apache.taglibsgroupId>
        <artifactId>taglibs-standard-specartifactId>
        <version>1.2.5version>
        <type>bundletype>
    dependency>
    <dependency>
        <groupId>org.apache.taglibsgroupId>
        <artifactId>taglibs-standard-implartifactId>
        <version>1.2.5version>
        <type>bundletype>
    dependency>
    <dependency>
        <groupId>mysqlgroupId>
        <artifactId>mysql-connector-javaartifactId>
        <version>8.0.18version>
    dependency>
    <dependency>
        <groupId>com.oraclegroupId>
        <artifactId>ojdbc6artifactId>
        <version>12.1.0.1-atlassian-hostedversion>
    dependency>
    <dependency>
        <groupId>com.mchangegroupId>
        <artifactId>c3p0artifactId>
        <version>0.9.5.2version>
    dependency>
    <dependency>
        <groupId>org.mybatisgroupId>
        <artifactId>mybatisartifactId>
        <version>3.4.6version>
    dependency>
    <dependency>
        <groupId>org.mybatisgroupId>
        <artifactId>mybatis-springartifactId>
        <version>1.3.2version>
    dependency>
    <dependency>
        <groupId>org.mybatis.generatorgroupId>
        <artifactId>mybatis-generator-coreartifactId>
        <version>1.3.7version>
    dependency>
    <dependency>
        <groupId>org.mybatis.cachesgroupId>
        <artifactId>mybatis-ehcacheartifactId>
        <version>1.1.0version>
    dependency>
    <dependency>
        <groupId>com.github.pagehelpergroupId>
        <artifactId>pagehelperartifactId>
        <version>5.1.4version>
    dependency>
dependencies>
<build>
    <plugins>
        <plugin>
            <groupId>org.apache.felixgroupId>
            <artifactId>maven-bundle-pluginartifactId>
            <extensions>trueextensions>
        plugin>
    plugins>
    <resources>
        <resource>
            <directory>src/main/javadirectory>
            <includes>
                <include>**/*.xmlinclude>
            includes>
        resource>
        <resource>
            <directory>src/main/resourcesdirectory>
        resource>
    resources>
build>

2、在web.xml里做spring和springmvc的初始配置

web.xml

<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 Applicationdisplay-name>
    
    
    <context-param>
        <param-name>contextConfigLocationparam-name>
        <param-value>classpath:spring.xmlparam-value>
    context-param>
    
    
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListenerlistener-class>
    listener>

    
    <servlet>
        <servlet-name>dispatcherServletservlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>
        <init-param>
            <param-name>contextConfigLocationparam-name>
            <param-value>classpath:springmvc.xmlparam-value>
        init-param>
        <load-on-startup>1load-on-startup>
    servlet>
    <servlet-mapping>
        <servlet-name>dispatcherServletservlet-name>
        <url-pattern>/url-pattern>
    servlet-mapping>
    
    <filter>
        <filter-name>characterEncodingFilterfilter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilterfilter-class>
        <init-param>
            <param-name>encodingparam-name>
            <param-value>UTF-8param-value>
        init-param>
        <init-param>
            <param-name>forceEncodingparam-name>
            <param-value>trueparam-value>
        init-param>
    filter>
    <filter-mapping>
        <filter-name>characterEncodingFilterfilter-name>
        <url-pattern>/*url-pattern>
    filter-mapping>
    
web-app>

3、SpringMVC配置文件

springmvc.xml

<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:mvc="http://www.springframework.org/schema/mvc"
       xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd
       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-4.3.xsd">

    
    <context:component-scan base-package="cn.hyl.demo" use-default-filters="false">
        <context:include-filter type="annotation"
                                expression="org.springframework.stereotype.Controller"/>
        <context:include-filter type="annotation"
                                expression="org.springframework.web.bind.annotation.ControllerAdvice"/>
    context:component-scan>
    
    
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/jsp/"/>
        <property name="suffix" value=".jsp"/>
    bean>

    <mvc:annotation-driven/>
    <mvc:default-servlet-handler/>
    
beans>

4、Spring配置文件

spring.xml

<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:context="http://www.springframework.org/schema/context"
       xmlns:mybatis-spring="http://mybatis.org/schema/mybatis-spring"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xsi:schemaLocation="http://mybatis.org/schema/mybatis-spring http://mybatis.org/schema/mybatis-spring-1.2.xsd
       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-4.3.xsd
       http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
       http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsd">

    
    <context:component-scan base-package="cn.hyl.demo">
        <context:exclude-filter type="annotation"
                                expression="org.springframework.stereotype.Controller"/>
        <context:exclude-filter type="annotation"
                                expression="org.springframework.web.bind.annotation.ControllerAdvice"/>
    context:component-scan>
    <context:property-placeholder location="classpath:jdbc.properties"/>
    
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="user" value="${jdbc.user}"/>
        <property name="password" value="${jdbc.password}"/>
        <property name="driverClass" value="${jdbc.driverClass}"/>
        <property name="jdbcUrl" value="${jdbc.jdbcUrl}"/>
        <property name="acquireIncrement" value="${jdbc.acquireIncrement}"/>
        <property name="initialPoolSize" value="${jdbc.initialPoolSize}"/>
        <property name="minPoolSize" value="${jdbc.minPoolSize}"/>
        <property name="maxPoolSize" value="${jdbc.maxPoolSize}"/>
        <property name="maxStatements" value="${jdbc.maxStatements}"/>
        <property name="maxStatementsPerConnection" value="${jdbc.maxStatementsPerConnection}"/>
    bean>
    
    
    <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="get*" read-only="true"/>
            <tx:method name="load*" read-only="true"/>
            <tx:method name="find*" read-only="true"/>
            <tx:method name="select*" read-only="true"/>
            <tx:method name="*" read-only="false"/>
        tx:attributes>
    tx:advice>

    
    <aop:config>
        <aop:pointcut expression="execution(* cn.hyl.demo.service.*.*(..))"
                      id="txPointcut"/>
        <aop:advisor advice-ref="txAdvice" pointcut-ref="txPointcut"/>
    aop:config>

    
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>
        <property name="configLocation" value="classpath:mybatis-config.xml"/>
        <property name="mapperLocations" value="classpath:cn/hyl/demo/dao/*.xml"/>
    bean>
    
    
    <mybatis-spring:scan base-package="cn.hyl.demo.dao"/>
    
beans>

5、数据库连接配置

jdbc.properties

jdbc.user=root
jdbc.password=root
jdbc.driverClass=com.mysql.cj.jdbc.Driver
jdbc.jdbcUrl=jdbc:mysql://localhost:3306/数据库名?serverTimezone=UTC

jdbc.acquireIncrement=10
jdbc.initialPoolSize=30
jdbc.minPoolSize=5
jdbc.maxPoolSize=40
jdbc.maxStatements=1000
jdbc.maxStatementsPerConnection=100

6、日志配置

log4j.properties

log4j.rootLogger = debug,stdout, D
log4j.appender.stdout = org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target = System.out
log4j.appender.stdout.Threshold = INFO
log4j.appender.stdout.layout = org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d %p %m%n
log4j.appender.D = org.apache.log4j.DailyRollingFileAppender
log4j.appender.D.File = ./log4j.log
log4j.appender.D.Append = true
log4j.appender.D.Threshold = DEBUG
log4j.appender.D.layout = org.apache.log4j.PatternLayout
log4j.appender.D.layout.ConversionPattern=%d %p %m%n

7、mybatis配置文件

mybatis-config.xml

DOCTYPE configuration
        PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>

    <settings>
        
        <setting name="mapUnderscoreToCamelCase" value="true"/>
        
        <setting name="lazyLoadingEnabled" value="true"/>
        <setting name="aggressiveLazyLoading" value="false"/>
        
        <setting name="cacheEnabled" value="true"/>
        
        <setting name="logImpl" value="STDOUT_LOGGING"/>
    settings>

    <plugins>
        <plugin interceptor="com.github.pagehelper.PageInterceptor"/>
    plugins>

configuration>

四、项目代码

1、model层

Admin

package cn.hyl.demo.model;

public class Admin {
    private Integer id;

    private String name;

    private Integer age;

    public Integer getId() {
        return id;
    }

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

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

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public Integer getAge() {
        return age;
    }

    public void setAge(Integer age) {
        this.age = age;
    }
}

2、dao层

AdminMapper

package cn.hyl.demo.dao;

import cn.hyl.demo.model.Admin;
import org.springframework.stereotype.Repository;

@Repository
public interface AdminMapper {
    int deleteByPrimaryKey(Integer id);

    int insert(Admin record);

    int insertSelective(Admin record);

    Admin selectByPrimaryKey(Integer id);

    int updateByPrimaryKeySelective(Admin record);

    int updateByPrimaryKey(Admin record);
}

AdminMapper.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="cn.hyl.demo.dao.AdminMapper">
  <resultMap id="BaseResultMap" type="cn.hyl.demo.model.Admin">
    <id column="id" jdbcType="INTEGER" property="id" />
    <result column="name" jdbcType="VARCHAR" property="name" />
    <result column="age" jdbcType="INTEGER" property="age" />
  </resultMap>
  <sql id="Base_Column_List">
    id, name, age
  </sql>
  <select id="selectByPrimaryKey" parameterType="java.lang.Integer" resultMap="BaseResultMap">
    select
    <include refid="Base_Column_List" />
    from t_admin
    where id = #{id,jdbcType=INTEGER}
  </select>
  <delete id="deleteByPrimaryKey" parameterType="java.lang.Integer">
    delete from t_admin
    where id = #{id,jdbcType=INTEGER}
  </delete>
  <insert id="insert" parameterType="cn.hyl.demo.model.Admin">
    insert into t_admin (id, name, age
      )
    values (#{id,jdbcType=INTEGER}, #{name,jdbcType=VARCHAR}, #{age,jdbcType=INTEGER}
      )
  </insert>
  <insert id="insertSelective" parameterType="cn.hyl.demo.model.Admin">
    insert into t_admin
    <trim prefix="(" suffix=")" suffixOverrides=",">
      <if test="id != null">
        id,
      </if>
      <if test="name != null">
        name,
      </if>
      <if test="age != null">
        age,
      </if>
    </trim>
    <trim prefix="values (" suffix=")" suffixOverrides=",">
      <if test="id != null">
        #{id,jdbcType=INTEGER},
      </if>
      <if test="name != null">
        #{name,jdbcType=VARCHAR},
      </if>
      <if test="age != null">
        #{age,jdbcType=INTEGER},
      </if>
    </trim>
  </insert>
  <update id="updateByPrimaryKeySelective" parameterType="cn.hyl.demo.model.Admin">
    update t_admin
    <set>
      <if test="name != null">
        name = #{name,jdbcType=VARCHAR},
      </if>
      <if test="age != null">
        age = #{age,jdbcType=INTEGER},
      </if>
    </set>
    where id = #{id,jdbcType=INTEGER}
  </update>
  <update id="updateByPrimaryKey" parameterType="cn.hyl.demo.model.Admin">
    update t_admin
    set name = #{name,jdbcType=VARCHAR},
      age = #{age,jdbcType=INTEGER}
    where id = #{id,jdbcType=INTEGER}
  </update>
</mapper>

3、service层

AdminService

package cn.hyl.demo.service;

import cn.hyl.demo.model.Admin;

public interface AdminService {
    Admin selectByPrimaryKey(Integer id);
}

AdminServiceImpl

package cn.hyl.demo.service;

import cn.hyl.demo.dao.AdminMapper;
import cn.hyl.demo.model.Admin;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
public class AdminServiceImpl implements AdminService{

    @Autowired
    private AdminMapper adminMapper;
    @Override
    public Admin selectByPrimaryKey(Integer id) {
        return adminMapper.selectByPrimaryKey(id);
    }
}

4、controller层

AdminController

package cn.hyl.demo.controller;

import cn.hyl.demo.model.Admin;
import cn.hyl.demo.service.AdminService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.ResponseBody;

@Controller
public class AdminContoller {
    
    @Autowired
    private AdminService adminService;

    @ResponseBody
    @GetMapping("/test")
    public String test(){
        Admin admin = adminService.selectByPrimaryKey(1);
        return admin.toString();
    }

}

五、代码模板下载

下载下来导入Idea中可以直接使用
链接：点击进入下载页面