MyBatis+Spring+SpringMVC框架搭建
系統(tǒng)的整體架構(gòu)圖：
整體架構(gòu)
1涩惑、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依賴(lài) start -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.38</version>
</dependency>
<!-- 加入MyBatis 依賴(lài) start -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.2.8</version>
</dependency>
<!-- 引入Spring(包含SpringMVC) 依賴(lài) 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 依賴(lài) start
<dependency>
<groupId>com.mchange</groupId>
<artifactId>c3p0</artifactId>
<version>0.9.2.1</version>
</dependency>
-->
<!-- 引用插件依賴(lài)：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>
<!-- 德魯伊數(shù)據(jù)連接池 -->
<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>
<!--處理json-->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.9.5</version>
</dependency>
<!--導(dǎo)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>
<!--文件上傳下載-->
<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依賴(lài)導(dǎo)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桑驱、添加實(shí)體類(lèi)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竭恬、添加UserDao接口類(lèi)和UserDaoImpl實(shí)現(xiàn)類(lèi)
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;
/**
* 查找所有用戶(hù)信息
* */
@Override
public List<User> findAll() {
return sqlSessionTemplate.selectList("com.fan.dao.UserDao.findAll");
}
}
5、添加UserService接口類(lèi)和UserServicelmpl實(shí)現(xiàn)類(lèi)
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熬的、添加Controller類(lèi)
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;
/**
* 查找所有用戶(hù)信息
* */
@RequestMapping("/findall")
public String test(ModelMap map){
List<User> users = userService.findAll();
map.addAttribute("u",users);
return "show";
}
}
7痊硕、添加index.jsp和show.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<body>
<h1>首頁(yè)</h1>
<h2><a href="/findall">查詢(xún)所有用戶(hù)</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 表示命名空間押框，通常定義的格式是接口的完整路徑-->
<mapper namespace="com.fan.dao.UserDao">
<!--定義sql語(yǔ)句,sql語(yǔ)句結(jié)束后不要加分號(hào)-->
<!-- id是被調(diào)用的方法名 mapper文件中讀取參數(shù)的格式：#{屬性名} -->
<select id="findAll" resultType="com.fan.entity.User">
select * from users
</select>
</mapper>
9岔绸、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、創(chuàng)建數(shù)據(jù)源强戴，使用spring連接數(shù)據(jù)庫(kù)-->
<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亭螟、掃描注解包-->
<context:component-scan base-package="com"></context:component-scan>
<!--3、創(chuàng)建視圖解析器-->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/"></property>
<property name="suffix" value=".jsp"></property>
</bean>
<!--4骑歹、加載注解驅(qū)動(dòng)-->
<mvc:annotation-driven></mvc:annotation-driven>
<!--5预烙、創(chuàng)建sqlSession工廠(chǎng)-->
<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層實(shí)現(xiàn)類(lèi)時(shí)道媚，需要得到sqlSessionTemplate-->
<!--mybatis是用SqlSession操作數(shù)據(jù)庫(kù)扁掸，Spring用jdbcTemplate操作數(shù)據(jù)庫(kù)翘县，現(xiàn)在用的是sqlSessionTemplate-->
<bean id="temp" class="org.mybatis.spring.SqlSessionTemplate">
<constructor-arg index="0" ref="fac"></constructor-arg>
</bean>
<!--7、配置事務(wù)-->
<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谴分、配置靜態(tài)資源-->
<mvc:default-servlet-handler></mvc:default-servlet-handler>
</beans>
10锈麸、啟動(dòng)tomcat進(jìn)行測(cè)試
注：我們可以將applicationContext.xml中第6小點(diǎn)重新配置，然后就可以把UserDaoImpl實(shí)現(xiàn)類(lèi)刪除牺蹄。
<!--6忘伞、省略實(shí)現(xiàn)類(lèi) 省略dao層實(shí)現(xiàn)類(lèi)(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>
