SSM框架搭建

作者: 凡哥爱丽姐 | 来源:发表于2021-01-12 09:20 被阅读0次

MyBatis+Spring+SpringMVC框架搭建

系统的整体架构图：

整体架构

1、添加jar包

<dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.11</version>
      <scope>test</scope>
    </dependency>

    <!-- 加入ServletAPI -->
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>javax.servlet-api</artifactId>
      <version>3.1.0</version>
      <scope>provided</scope>
    </dependency>

    <!-- MySQL依赖 start -->
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>5.1.38</version>
    </dependency>

    <!-- 加入MyBatis 依赖 start -->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis</artifactId>
      <version>3.2.8</version>
    </dependency>

    <!-- 引入Spring(包含SpringMVC) 依赖 start -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-core</artifactId>
      <version>5.0.8.RELEASE</version>
    </dependency>

    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-web</artifactId>
      <version>5.0.8.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-oxm</artifactId>
      <version>5.0.8.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-tx</artifactId>
      <version>5.0.8.RELEASE</version>
    </dependency>


    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-jdbc</artifactId>
      <version>5.0.8.RELEASE</version>
    </dependency>

    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>5.0.8.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-aop</artifactId>
      <version>5.0.8.RELEASE</version>
    </dependency>

    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context-support</artifactId>
      <version>5.0.8.RELEASE</version>
    </dependency>

    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-test</artifactId>
      <version>5.0.8.RELEASE</version>
    </dependency>

    <!-- 引用c3p0 依赖 start
      <dependency>
          <groupId>com.mchange</groupId>
          <artifactId>c3p0</artifactId>
          <version>0.9.2.1</version>
      </dependency>
       -->
    <!-- 引用插件依赖：MyBatis整合Spring,如果mybatis版本在3.4及以上版本
       mybatis-spring的版本要在1.3以上   -->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis-spring</artifactId>
      <version>1.2.2</version>
    </dependency>

    <!-- JSTL -->
    <dependency>
      <groupId>jstl</groupId>
      <artifactId>jstl</artifactId>
      <version>1.2</version>
    </dependency>

    <!-- 德鲁伊数据连接池 -->
    <dependency>
      <groupId>com.alibaba</groupId>
      <artifactId>druid</artifactId>
      <version>1.0.9</version>
    </dependency>

    <!-- pagehelper -->
    <dependency>
      <groupId>com.github.pagehelper</groupId>
      <artifactId>pagehelper</artifactId>
      <version>4.1.6</version>
    </dependency>
    <!--处理json-->
    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-databind</artifactId>
      <version>2.9.5</version>
    </dependency>
    <!--导出excel-->
    <dependency>
      <groupId>org.apache.poi</groupId>
      <artifactId>poi</artifactId>
      <version>3.6</version>
    </dependency>
    <!--javaee-->
    <dependency>
      <groupId>javax</groupId>
      <artifactId>javaee-api</artifactId>
      <version>7.0</version>
      <scope>provided</scope>
    </dependency>
    <!--文件上传下载-->
    <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>


    <!--- Activiti依赖导入 -->
    <dependency>
      <groupId>org.activiti</groupId>
      <artifactId>activiti-spring</artifactId>
      <version>5.18.0</version>
    </dependency>
    <dependency>
      <groupId>org.activiti</groupId>
      <artifactId>activiti-engine</artifactId>
      <version>5.18.0</version>
      <exclusions>
        <exclusion>
          <artifactId>slf4j-api</artifactId>
          <groupId>org.slf4j</groupId>
        </exclusion>
        <exclusion>
          <artifactId>spring-beans</artifactId>
          <groupId>org.springframework</groupId>
        </exclusion>
        <exclusion>
          <artifactId>jackson-core-asl</artifactId>
          <groupId>org.codehaus.jackson</groupId>
        </exclusion>
        <exclusion>
          <artifactId>commons-lang3</artifactId>
          <groupId>org.apache.commons</groupId>
        </exclusion>
      </exclusions>
    </dependency>
  </dependencies>

2、web.xml配置

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

  <servlet>
    <servlet-name>springMvc</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:applicationContext.xml</param-value>
    </init-param>
  </servlet>
  <servlet-mapping>
    <servlet-name>springMvc</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>

  <filter>
    <filter-name>aa</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>aa</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>
</web-app>

3、添加实体类User

package com.fan.entity;

public class User {
    private Integer id;
    private String name;
    private String sex;

    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 String getSex() {
        return sex;
    }

    public void setSex(String sex) {
        this.sex = sex;
    }

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

4、添加UserDao接口类和UserDaoImpl实现类

package com.fan.dao;

import com.fan.entity.User;

import java.util.List;

public interface UserDao {
    public List<User> findAll();
}

package com.fan.dao.impl;

import com.fan.dao.UserDao;
import com.fan.entity.User;
import org.mybatis.spring.SqlSessionTemplate;
import org.springframework.stereotype.Repository;

import javax.annotation.Resource;
import java.util.List;

@Repository
public class UserDaoImpl implements UserDao {
    @Resource(name="temp")
    private SqlSessionTemplate sqlSessionTemplate;

    /**
     * 查找所有用户信息
     * */
    @Override
    public List<User> findAll() {
        return sqlSessionTemplate.selectList("com.fan.dao.UserDao.findAll");
    }
}

5、添加UserService接口类和UserServicelmpl实现类

package com.fan.service;

import com.fan.entity.User;

import java.util.List;

public interface UserService {
    public List<User> findAll();
}

package com.fan.service.impl;

import com.fan.dao.UserDao;
import com.fan.entity.User;
import com.fan.service.UserService;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import java.util.List;

@Service
public class UserServiceImpl implements UserService {
    @Resource(name="userDaoImpl")
    private UserDao userDao;

    @Override
    public List<User> findAll() {

        return  userDao.findAll();
    }
}

6、添加Controller类

package com.fan.controller;

import com.fan.entity.User;
import com.fan.service.UserService;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestMapping;

import javax.annotation.Resource;
import java.util.List;

@Controller
public class UserController {
    @Resource(name="userServiceImpl")
    private UserService userService;


    /**
     * 查找所有用户信息
     * */
    @RequestMapping("/findall")
    public String test(ModelMap map){
        List<User> users = userService.findAll();
        map.addAttribute("u",users);
        return "show";
    }
}

7、添加index.jsp和show.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<body>
<h1>首页</h1>
<h2><a href="/findall">查询所有用户</a></h2>
</body>
</html>

<%--
  Created by IntelliJ IDEA.
  User: Mr Wei
  Date: 2020/*/*
  Time: 16:24
  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>show</title>
</head>
<body>
<h1>show</h1>
<c:forEach items="${u}" var="u1">
    ${u1.id}--${u1.name}--${u1.sex}<br>
</c:forEach>
</body>
</html>

8、配置UserDaoMapper.xml文件

<?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">
<!--namespace 表示命名空间，通常定义的格式是接口的完整路径-->
<mapper namespace="com.fan.dao.UserDao">
    <!--定义sql语句,sql语句结束后不要加分号-->
    <!-- id是被调用的方法名   mapper文件中读取参数的格式：#{属性名} -->
    <select id="findAll" resultType="com.fan.entity.User">
        select * from users
    </select>
</mapper>

9、配置applicationContext.xml文件（Spring配合文件）

<?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"
       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/mvc
                           http://www.springframework.org/schema/mvc/spring-mvc.xsd
                           http://www.springframework.org/schema/tx
                           http://www.springframework.org/schema/tx/spring-tx.xsd">

    <!--1、创建数据源，使用spring连接数据库-->
    <bean id="db" class="com.alibaba.druid.pool.DruidDataSource">
        <property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
        <property name="url" value="jdbc:mysql://localhost:3306/test"></property>
        <property name="username" value="root"></property>
        <property name="password" value="root"></property>
    </bean>

    <!--2、扫描注解包-->
    <context:component-scan base-package="com"></context:component-scan>

    <!--3、创建视图解析器-->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/"></property>
        <property name="suffix" value=".jsp"></property>
    </bean>

    <!--4、加载注解驱动-->
    <mvc:annotation-driven></mvc:annotation-driven>

    <!--5、创建sqlSession工厂-->
    <bean id="fac" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="db"></property>
        <property name="mapperLocations" value="classpath:mapper/*.xml"></property>
      <!-- <property name="configLocation" value="classpath:mybatis-config.xml"></property>-->
    </bean>

    <!--6、使用dao层实现类时，需要得到sqlSessionTemplate-->
    <!--mybatis是用SqlSession操作数据库，Spring用jdbcTemplate操作数据库，现在用的是sqlSessionTemplate-->
    <bean id="temp" class="org.mybatis.spring.SqlSessionTemplate">
        <constructor-arg index="0" ref="fac"></constructor-arg>
    </bean>

    <!--7、配置事务-->
    <bean id="tx" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="db"></property>
    </bean>
    <tx:advice id="ad" transaction-manager="tx"></tx:advice>

    <!--10、配置静态资源-->
    <mvc:default-servlet-handler></mvc:default-servlet-handler>
</beans>

10、启动tomcat进行测试

注：我们可以将applicationContext.xml中第6小点重新配置，然后就可以把UserDaoImpl实现类删除。

    <!--6、省略实现类  省略dao层实现类(使用MapperScannerConfigurer替代SqlSessionTemplate):-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.fan.dao"></property>
        <property name="sqlSessionFactoryBeanName" value="fac"></property>
    </bean>

SSM框架搭建

MyBatis+Spring+SpringMVC框架搭建

系统的整体架构图：

1、添加jar包

2、web.xml配置

3、添加实体类User

4、添加UserDao接口类和UserDaoImpl实现类

5、添加UserService接口类和UserServicelmpl实现类

6、添加Controller类

7、添加index.jsp和show.jsp

8、配置UserDaoMapper.xml文件

9、配置applicationContext.xml文件（Spring配合文件）

10、启动tomcat进行测试

注：我们可以将applicationContext.xml中第6小点重新配置，然后就可以把UserDaoImpl实现类删除。

相关文章

网友评论

延伸阅读

深度阅读

栏目导航

热点阅读

程序员