用maven对ssm进行整合

网上有很多ssm整合的教程，这里给像我这样的初学的新手提供一个整合方法，同时也记录一下自己的学习进度。

同时推荐观看相关视频  https://www.bilibili.com/video/av53621216/ 推荐老师讲的spring和springMVC这两个框架的整合贼棒！（1p—6p），spring和mabatis的话在找找资料看看，感觉我这个写的太乱了（/苦恼）

数据库相关：因为是测试整合的，所以数据库设计特别简单：

数据库名：blog；表名：user；

表中数据：

1.创建maven项目

2.初始项目结构：

3.在创建的初始目录结构中：src/main/java这个是放置java文件，而src/main/resources放置配置文件。

在pom.xml中引入jar包坐标：

  1 <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">
  2   <modelVersion>4.0.0</modelVersion>
  3   <groupId>com.hhxy</groupId>
  4   <artifactId>blog</artifactId>
  5   <version>0.0.1-SNAPSHOT</version>
  6   <packaging>war</packaging>
  7   
  8   
  9   <properties>
 10         <spring.version>5.0.2.RELEASE</spring.version>
 11         <slf4j.version>1.6.6</slf4j.version>
 12         <log4j.version>1.2.12</log4j.version>
 13         <mysql.version>5.1.6</mysql.version>
 14         <mybatis.version>3.4.5</mybatis.version>
 15     </properties>
 16 
 17     <dependencies>
 18 
 19         <!-- spring -->
 20         <dependency>
 21             <groupId>org.aspectj</groupId>
 22             <artifactId>aspectjweaver</artifactId>
 23             <version>1.6.8</version>
 24         </dependency>
 25 
 26         <dependency>
 27             <groupId>org.springframework</groupId>
 28             <artifactId>spring-aop</artifactId>
 29             <version>${spring.version}</version>
 30         </dependency>
 31 
 32         <dependency>
 33             <groupId>org.springframework</groupId>
 34             <artifactId>spring-context</artifactId>
 35             <version>${spring.version}</version>
 36         </dependency>
 37 
 38 
 39         <dependency>
 40             <groupId>org.springframework</groupId>
 41             <artifactId>spring-web</artifactId>
 42             <version>${spring.version}</version>
 43         </dependency>
 44 
 45         <dependency>
 46             <groupId>org.springframework</groupId>
 47             <artifactId>spring-webmvc</artifactId>
 48             <version>${spring.version}</version>
 49         </dependency>
 50 
 51         <dependency>
 52             <groupId>org.springframework</groupId>
 53             <artifactId>spring-test</artifactId>
 54             <version>${spring.version}</version>
 55         </dependency>
 56 
 57         <dependency>
 58             <groupId>org.springframework</groupId>
 59             <artifactId>spring-tx</artifactId>
 60             <version>${spring.version}</version>
 61         </dependency>
 62 
 63         <dependency>
 64             <groupId>org.springframework</groupId>
 65             <artifactId>spring-jdbc</artifactId>
 66             <version>${spring.version}</version>
 67         </dependency>
 68 
 69         <dependency>
 70             <groupId>junit</groupId>
 71             <artifactId>junit</artifactId>
 72             <version>4.12</version>
 73             <scope>compile</scope>
 74         </dependency>
 75 
 76         <dependency>
 77             <groupId>mysql</groupId>
 78             <artifactId>mysql-connector-java</artifactId>
 79             <version>${mysql.version}</version>
 80         </dependency>
 81 
 82         <dependency>
 83             <groupId>javax.servlet</groupId>
 84             <artifactId>servlet-api</artifactId>
 85             <version>2.5</version>
 86             <scope>provided</scope>
 87         </dependency>
 88 
 89         <dependency>
 90             <groupId>javax.servlet.jsp</groupId>
 91             <artifactId>jsp-api</artifactId>
 92             <version>2.0</version>
 93             <scope>provided</scope>
 94         </dependency>
 95 
 96         <dependency>
 97             <groupId>jstl</groupId>
 98             <artifactId>jstl</artifactId>
 99             <version>1.2</version>
100         </dependency>
101 
102         <!-- log start -->
103         <dependency>
104             <groupId>log4j</groupId>
105             <artifactId>log4j</artifactId>
106             <version>${log4j.version}</version>
107         </dependency>
108 
109         <dependency>
110             <groupId>org.slf4j</groupId>
111             <artifactId>slf4j-api</artifactId>
112             <version>${slf4j.version}</version>
113         </dependency>
114 
115         <dependency>
116             <groupId>org.slf4j</groupId>
117             <artifactId>slf4j-log4j12</artifactId>
118             <version>${slf4j.version}</version>
119         </dependency>
120         <!-- log end -->
121         <dependency>
122             <groupId>org.mybatis</groupId>
123             <artifactId>mybatis</artifactId>
124             <version>${mybatis.version}</version>
125         </dependency>
126 
127         <dependency>
128             <groupId>org.mybatis</groupId>
129             <artifactId>mybatis-spring</artifactId>
130             <version>1.3.0</version>
131         </dependency>
132 
133         <dependency>
134             <groupId>c3p0</groupId>
135             <artifactId>c3p0</artifactId>
136             <version>0.9.1.2</version>
137             <type>jar</type>
138             <scope>compile</scope>
139         </dependency>
140 
141     </dependencies>
142 <build>
143         <finalName>ssm</finalName>
144         <pluginManagement>
145             <plugins>
146                 <plugin>
147                     <groupId>org.apache.maven.plugins</groupId>
148                     <artifactId>maven-compiler-plugin</artifactId>
149                     <version>3.2</version>
150                     <configuration>
151                         <source>1.8</source>
152                         <target>1.8</target>
153                         <encoding>UTF-8</encoding>
154                         <showWarnings>true</showWarnings>
155                     </configuration>
156                 </plugin>
157             </plugins>
158         </pluginManagement>
159     </build>
160     
161 </project>

4.创建好项目后，在src/main/java中创建包：如图所示：

5.根据数据库设计实体类，同时在控制层、mapper层、service层创建相应的类。如图：

、

6.开始的准备步骤准备完毕，接下来开始整合。

ssm整合是spring+springMVC+mybatis这三个框架进行整合，是要拿spring框架对springMVC和mybatis进行整合。

7.下面对三个框架进行整合：

创建applicationContext.xml：

相关代码：

<?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">
    
    <!-- =============开启注解扫描Spring中只需要扫描service和mapper============ -->
    <context:component-scan base-package="com.hhxy.plx" >
        <!--配置哪些注解不扫描exclude  是不处理的-->
        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller" />
    </context:component-scan>
    
    <!-- ==========================读取jdbc工具类==================================== -->
    <context:property-placeholder location="classpath:jdbc.properties" />
    <bean id="pooledDataSource" 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>
    
    
    <!--==============================配置和MyBatis的整合====================== -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!-- 指定mybatis全局配置文件的位置 -->
        <property name="configLocation" value="classpath:mybatis-config.xml"></property>
        <property name="dataSource" ref="pooledDataSource"></property>
        <!-- 指定mybatis，mapper文件的位置 -->
        <property name="mapperLocations" value="classpath*:com/hhxy/plx/mapper/*.xml"></property>
    </bean>
    
    
    
    <!-- ======================配置扫描器，将mybatis接口的实现加入到ioc容器中=========-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!--扫描所有mapper接口的实现，加入到ioc容器中 -->
        <property name="basePackage" value="com.hhxy.plx.mapper"></property>
    </bean>
    
    </beans>

8.创建springmvc.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:context="http://www.springframework.org/schema/context"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="
        http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/mvc
        http://www.springframework.org/schema/mvc/spring-mvc.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context.xsd">
<!-- 开启注解扫描 只扫描Controller -->
    <context:component-scan base-package="com.hhxy.plx">
        <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller" />
    </context:component-scan>
<!--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>

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

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





</beans>

9.创建mybatis-config.xml  这个可以不用写东西，但是它一定要有。

<?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>

10.创建log4j.properties

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/blog?characterEncoding=utf-8
jdbc.username=root
jdbc.password=root

11.web.xml相关配置：

<?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_3_0.xsd" id="WebApp_ID" version="3.0">
  <display-name>blog</display-name>
  <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>
  
  
  
  
  <!-- Spring 整合  Springweb配置Spring监听器 -->
  <!--配置Spring的监听器，默认只加载WEB-INF目录下的applicationContext.xml配置文件-->
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
  <!--设置配置文件的路径-->
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:applicationContext.xml</param-value>
  </context-param>
  <context-param>
    <param-name/>
    <param-value/>
  </context-param>

  <!-- 此部分为springMVC的配置 -->
  
  
  <!--配置前端控制器-->
  <servlet>
    <servlet-name>dispatcherServlet</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <!--加载springmvc.xml配置文件-->
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:springmvc.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>

  <!--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>

12.上面就是所有配置文件。

UserController：

package com.hhxy.plx.controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

import com.hhxy.plx.entity.User;
import com.hhxy.plx.service.UserService;

@Controller
@RequestMapping("/user")
public class UserController {
    @Autowired
    private UserService userService;
    @RequestMapping("/login")
    public String findAll() {
        System.out.println("Controller执行成功！！");
        userService.findAll();
        return "login";
        
    }
    @RequestMapping("/save")
    public String save(User user) {
    userService.saveUser(user);
        return "login";
        
    }

}

User实体类：

package com.hhxy.plx.entity;

public class User {
    private int id;
    private String username;
    private String password;
    public int getId() {
        return id;
    }
    public void setId(int id) {
        this.id = id;
    }
    public String getUsername() {
        return username;
    }
    public void setUsername(String username) {
        this.username = username;
    }
    public String getPassword() {
        return password;
    }
    public void setPassword(String password) {
        this.password = password;
    }
    
    
    
}

UserMapper接口类：

package com.hhxy.plx.mapper;

import com.hhxy.plx.entity.User;

public interface UserMapper {

    void saveUser(User user);

}

UserMapper.xml：

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.hhxy.plx.mapper.UserMapper">
  <resultMap id="BaseResultMap" type="com.hhxy.plx.mapper.UserMapper">
    <id column="id" jdbcType="INTEGER" property="id" />
    <result column="username" jdbcType="VARCHAR" property="username" />
    <result column="password" jdbcType="VARCHAR" property="password" />
  
  </resultMap>
   <select id="findAll" parameterType="com.hhxy.plx.entity.User" resultMap="BaseResultMap">
   select * from user
   </select>
  <insert id="saveUser" parameterType="com.hhxy.plx.entity.User">
  
  insert into user(username,password) values (#{username},#{password})
  </insert>
  
  
  
  </mapper>

UserService接口类：

package com.hhxy.plx.service;

import java.util.List;

import com.hhxy.plx.entity.User;

public interface UserService {

    public List<User> findAll();

    public void saveUser(User user);


    

}

UserServiceImpl实现类：

package com.hhxy.plx.service;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.hhxy.plx.entity.User;
import com.hhxy.plx.mapper.UserMapper;
@Service("userService")
public class UserServiceImpl implements UserService {
@Autowired
private UserMapper userMapper;
    
    public List<User> findAll(){
        System.out.println("ServiceImpl调用成功！！！！");
        return null;
        
    }

    @Override
    public void saveUser(User user) {
        System.out.println("保存用户！！！");
        userMapper.saveUser(user);
        
    }
    
    
}

index.jsp：

<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Insert title here</title>
</head>
<body>
<a href="user/login">测试跳转</a>
<form action="user/save" method="post">
账号：<input type="text" name="username"><br/>
密码：<input type="text" name="password"><br/>

<input type="submit" value="保存">


</form>

</body>
</html>

login.jsp

<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Insert title here</title>
</head>
<body>
login页面

</body>
</html>

测试：

输入要保存的账号密码：跳转保存。

刷新数据库：