http://blog.csdn.net/noaman_wgs/article/details/53893948

利用Intellij+MAVEN搭建Spring+Mybatis+MySql+SpringMVC项目详解

这两天在公司实习，师父让我先熟悉Intellij软件的使用和SpringMVC框架。话不多说，先利用这些搭建一个小环境吧。

1 创建MAVEN项目：File-NEW-MAVEN-create from..前打勾--选下面的org.apache..archetypes:maven-archetype-webapp,点击next

后面的项目名称：

2  配置pom.xml文件，这里利用<dependency></dependency>标签导入需要的库。这里需要导入的有junit , spring , springmvc , mysql , mybatis , jstl等等，详见下面的配置文件：

<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>MybatisTest</groupId>

  <artifactId>MybatisTest-Demo1</artifactId>

  <packaging>war</packaging>

  <version>1.0-SNAPSHOT</version>

  <name>MybatisTest-Demo1 Maven Webapp</name>

  <url>http://maven.apache.org</url>

  <dependencies>

    <dependency>

      <groupId>junit</groupId>

      <artifactId>junit</artifactId>

      <version>3.8.1</version>

      <scope>test</scope>

    </dependency>

    <!--mysql driver-->

    <dependency>

      <groupId>mysql</groupId>

      <artifactId>mysql-connector-java</artifactId>

      <version>5.1.6</version>

    </dependency>

    <!--spring-->

    <!-- spring-aop -->

    <dependency>

      <groupId>org.springframework</groupId>

      <artifactId>spring-aop</artifactId>

      <version>4.3.5.RELEASE</version>

    </dependency>

    <!--spring-tx -->

    <dependency>

      <groupId>org.springframework</groupId>

      <artifactId>spring-tx</artifactId>

      <version>4.3.5.RELEASE</version>

    </dependency>

    <dependency>

      <groupId>org.springframework</groupId>

      <artifactId>spring-beans</artifactId>

      <version>4.3.1.RELEASE</version>

    </dependency>

    <dependency>

      <groupId>org.springframework</groupId>

      <artifactId>spring-core</artifactId>

      <version>4.3.1.RELEASE</version>

    </dependency>

    <dependency>

      <groupId>org.springframework</groupId>

      <artifactId>spring-context</artifactId>

      <version>4.3.1.RELEASE</version>

    </dependency>

    <!--Spring Web + Spring MVC-->

    <dependency>

      <groupId>org.springframework</groupId>

      <artifactId>spring-web</artifactId>

      <version>4.3.1.RELEASE</version>

    </dependency>

    <dependency>

      <groupId>org.springframework</groupId>

      <artifactId>spring-webmvc</artifactId>

      <version>4.3.1.RELEASE</version>

    </dependency>

    <!--NoClassDefFoundError: javax/servlet/jsp/jstl/core/Config-->

    <!-- https://mvnrepository.com/artifact/javax.servlet/jstl -->

    <dependency>

      <groupId>javax.servlet</groupId>

      <artifactId>jstl</artifactId>

      <version>1.2</version>

    </dependency>

    <dependency>

      <groupId>taglibs</groupId>

      <artifactId>standard</artifactId>

      <version>1.1.2</version>

    </dependency>

    <!--servlet/jsp api start-->

    <dependency>

      <groupId>javax.servlet</groupId>

      <artifactId>servlet-api</artifactId>

      <version>2.5</version>

    </dependency>

    <!-- https://mvnrepository.com/artifact/javax.servlet.jsp/jsp-api -->

    <dependency>

      <groupId>javax.servlet.jsp</groupId>

      <artifactId>jsp-api</artifactId>

      <version>2.2</version>

    </dependency>

    <!--c3p0-->

    <dependency>

      <groupId>com.mchange</groupId>

      <artifactId>c3p0</artifactId>

      <version>0.9.5.1</version>

    </dependency>

    <!--aspectj-->

    <dependency>

      <groupId>org.aspectj</groupId>

      <artifactId>aspectjweaver</artifactId>

      <version>1.8.6</version>

    </dependency>

    <dependency>

      <groupId>org.aspectj</groupId>

      <artifactId>aspectjrt</artifactId>

      <version>1.8.6</version>

    </dependency>

    <!--jdbc-->

    <dependency>

      <groupId>org.springframework</groupId>

      <artifactId>spring-jdbc</artifactId>

      <version>3.0.5.RELEASE</version>

    </dependency>

    <!--mybatis-->

    <dependency>

      <groupId>org.mybatis</groupId>

      <artifactId>mybatis</artifactId>

      <version>3.4.1</version>

    </dependency>

    <!--mybatis spring整合-->

    <dependency>

      <groupId>org.mybatis</groupId>

      <artifactId>mybatis-spring</artifactId>

      <version>1.3.0</version>

    </dependency>

    <dependency>

      <groupId>junit</groupId>

      <artifactId>junit</artifactId>

      <version>RELEASE</version>

    </dependency>

  <!--spring-test-->

    <dependency>

      <groupId>org.springframework</groupId>

      <artifactId>spring-test</artifactId>

      <version>3.2.3.RELEASE</version>

      <scope>test</scope>

    </dependency>

    <dependency>

      <groupId>org.springframework</groupId>

      <artifactId>spring-test</artifactId>

      <version>RELEASE</version>

    </dependency>

  </dependencies>

  <build>

    <finalName>MybatisTest-Demo1</finalName>

    <plugins>

      <!--servlet容器 jetty插件-->

      <plugin>

        <groupId>org.eclipse.jetty</groupId>

        <artifactId>jetty-maven-plugin</artifactId>

        <version>9.3.10.v20160621</version>

      </plugin>

      <!--mybatis 逆向工程插件-->

      <plugin>

        <groupId>org.mybatis.generator</groupId>

        <artifactId>mybatis-generator-maven-plugin</artifactId>

        <version>1.3.2</version>

        <configuration>

          <verbose>true</verbose>

          <overwrite>true</overwrite>

        </configuration>

      </plugin>

      <plugin>

        <groupId>org.apache.maven.plugins</groupId>

        <artifactId>maven-compiler-plugin</artifactId>

        <configuration>

          <source>1.7</source>

          <target>1.7</target>

        </configuration>

      </plugin>

    </plugins>

  </build>

</project>

3 src下面新建java包，将其设置为source root(在java包上点击右键，选择Mark Directory As Source Root),依次建如图类结构：

1）创建接口EmployeeMapper.java,这里是采用Mybatis的注解的方式，要在后面的spring-mybatis文件中去注册接口

package com.mybatis.dao;

import com.mybatis.model.Employee;

import org.apache.ibatis.annotations.Select;

import java.util.List;

/**

 * Created by wanggenshen_sx on 2016/12/26.

 */

public interface EmployeeMapper {

	@Select("select id,lastName,email from employee where id=#{id}")

	Employee getEmployeeById(int id);

	@Select("select * from employee")

	List<Employee> getAllEmployees();

}

2）实体类：Employee.java

package com.mybatis.model;

/**

 * Created by wanggenshen_sx on 2016/12/23.

 */

public class Employee {

	private int id;

	private String lastName;

	private String email;

	public int getId() {

		return id;

	}

	public void setId(int id) {

		this.id = id;

	}

	public String getLastName() {

		return lastName;

	}

	public void setLastName(String lastName) {

		this.lastName = lastName;

	}

	public String getEmail() {

		return email;

	}

	public void setEmail(String email) {

		this.email = email;

	}

	@Override

	public String toString() {

		return "Employee [id=" + id + ", lastName=" + lastName + ", email="

				+ email+" ]" ;

	}

	public Employee(){}

}

3) Service层：

创建EmployeeService接口

package com.mybatis.service;

import com.mybatis.model.Employee;

import java.util.List;

/**

 * Created by wanggenshen_sx on 2016/12/26.

 */

public interface EmployeeService {

	Employee getEmployee(int id);

	List<Employee> getEmployees();

}

创建EmployeeServiceImpl实现类：注意添加@Service注解

package com.mybatis.service;

import com.mybatis.dao.EmployeeMapper;

import com.mybatis.model.Employee;

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

import org.springframework.stereotype.Service;

import java.util.List;

/**
 * Created by wanggenshen_sx on 2016/12/26.
 */
@Service

public class EmployeeServiceImpl implements EmployeeService {

   public EmployeeServiceImpl() {

      System.out.printf("init EmployeeServiceImpl");

   }

   @Autowired

   private EmployeeMapper employeeMapper;

   @Override

   public Employee getEmployee(int id){

      return employeeMapper.getEmployeeById(id);

   }

   public List<Employee> getEmployees(){

      return employeeMapper.getAllEmployees();

   }

}

4）在spring配置文件中整合mybatis: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:tx="http://www.springframework.org/schema/tx" xmlns:context="http://www.springframework.org/schema/context"

       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd

        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.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">

    <!--自动扫描含有@Service的类，将其注入为bean -->

    <context:component-scan base-package="com.mybatis.service" />

    <context:component-scan base-package="com.mybatis.dao" />

    <!-- 1. 数据源 : DriverManagerDataSource -->

    <bean id="datasource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">

        <property name="driverClassName" value="com.mysql.jdbc.Driver"/>

        <property name="url" value="jdbc:mysql://localhost:3306/mytest"/>

        <property name="username" value="root"/>

        <property name="password" value="920614"/>

    </bean>

    <!--

        2. mybatis的SqlSession的工厂: SqlSessionFactoryBean

            dataSource / typeAliasesPackage

    -->

    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">

        <property name="dataSource" ref="datasource"/>

        <property name="typeAliasesPackage" value="com.mybatis.model"/>

    </bean>

    <!--

        3. mybatis自动扫描加载Sql映射文件 : MapperScannerConfigurer

            sqlSessionFactory / basePackage

    -->

    <bean id="config" class="org.mybatis.spring.mapper.MapperScannerConfigurer">

       <property name="basePackage" value="com.mybatis.dao"/>

        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />

    </bean>

    <!-- 4. 事务管理 : DataSourceTransactionManager -->

    <bean id="manager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">

        <property name="dataSource" ref="datasource"/>

    </bean>

    <!-- 5. 使用声明式事务 -->

    <tx:annotation-driven transaction-manager="manager" />

</beans>

建测试类：EmployeeTest.java

package com.mybatis.test;

import com.mybatis.model.Employee;

import com.mybatis.service.EmployeeService;

import org.junit.Test;

import org.junit.runner.RunWith;

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

import org.springframework.test.context.ContextConfiguration;

import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

import java.util.List;

/**
 * Created by wanggenshen_sx on 2016/12/27.
 */
@RunWith(SpringJUnit4ClassRunner.class)

@ContextConfiguration(locations = { "classpath:spring-mybatis.xml" })

public class EmployeeTest {

   @Autowired

   private EmployeeService employeeService;

   @Test

   public void testGetEmployeeById(){

      Employee employee = employeeService.getEmployee(1);

      System.out.print(employee);

   }

   @Test

   public void testGetAll(){

      List<Employee> employees=employeeService.getEmployees();

      System.out.print(employees);

   }

}

能输出并显示数据库表的内容，即表示Spring整合Mybatis成功，接下来加入SpringMVC内容，将读取的内容显示在页面上。

4 创建springmvc-servlet.xml,配置视图信息。

<?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:mvc="http://www.springframework.org/schema/mvc"

       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-4.0.xsd

      http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">

    <!--注解-->

    <mvc:annotation-driven/>

    <!--处理静态资源-->

    <mvc:default-servlet-handler/>

    <!-- 自动扫描controller包下的有@Controller注解的，注入为bean -->

    <context:component-scan base-package="com.mybatis.controller" />

    <!--配置视图解析器-->

    <bean id="viewResolverCommon" class="org.springframework.web.servlet.view.InternalResourceViewResolver">

        <property name="prefix" value="/WEB-INF/views/"/>

        <property name="suffix" value=".jsp"/>

        <property name="viewClass"  value="org.springframework.web.servlet.view.JstlView" />

    </bean>

</beans>

5 建控制类：
EmployeeController.java

package com.mybatis.controller;

import com.mybatis.model.Employee;

import com.mybatis.service.EmployeeService;

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

import org.springframework.stereotype.Controller;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RequestMethod;

import java.util.List;

import java.util.Map;

/**
 * Created by wanggenshen_sx on 2016/12/26.
 */
@Controller

public class EmployeeController {

   @Autowired

   private EmployeeService employeeService;

   @RequestMapping(value=",Object> map){

      List<Employee> employees = employeeService.getEmployees();

       /*测试用

      if(employees==null)

         System.out.println("null");

      else

         System.out.println(employees);*/

      map.put("employees",employees);

      return "list";

   }

}

6 建立显示页面: Web-app的WEB-INF下建views包下建list.jsp：

注意此处一定要加上

page false

否则无法使用jstl标签。

taglib chttp://java.sun.com/jsp/jstl/core" %>

<%--

  Created by IntelliJ IDEA.

  User: wanggenshen_sx

  Date: 2016/12/26

  Time: 17:25

  To change this template use File | Settings | File Templates.

--%>
page text/html;charset=UTF-8java" %>
page false" %>

<html>

<head>

    <title>Show Page22</title>

</head>

<body>

                <table border="1" cellspacing="0" cellpadding="10">

                    <tr>

                        <th>ID</th>

                        <th>LastName</th>

                        <th>Email</th>

                    </tr>

                    c="}="emp">

                        <tr>

                            <th>}</th>

                            <th>}</th>

                            <th>}</th>

                        </tr>
c:forEach>

                </table>

</body>

</html>

7 配置web.xml ,分别指定spring,springmvc配置文件的位置。注意这里一定要有四个部分，即<context-param>,<servlet>,<servlet-mapping>,<listener>.

我在这里没有添加<listener>标签，spring无法初始化，出现了【Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'employeeController': Unsatisfied dependency expressed through field 'employeeService': No qualifying bean of type [com.mybatis.service.EmployeeService] found for dependency [com.mybatis.service.EmployeeService]: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: 】错误。

<!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>

  <context-param>

    <param-name>contextConfigLocation</param-name>

    <param-value>classpath:spring-mybatis.xml</param-value>

  </context-param>

  <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>

  <!--配置springmvc DispatcherServlet-->

  <servlet>

    <servlet-name>springmvc-servlet</servlet-name>

    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

    <init-param>

      <param-name>contextConfigLocation</param-name>

      <param-value>classpath:springmvc-servlet.xml</param-value>

    </init-param>

    <load-on-startup>1</load-on-startup>

  </servlet>

  <servlet-mapping>

    <servlet-name>springmvc-servlet</servlet-name>

    <url-pattern>/</url-pattern>

  </servlet-mapping>

</web-app>

8 项目整体结构：