通过idea创建Maven项目整合Spring+spring mvc+mybatis

写这篇文章是为了整理一下idea下整合maven项目的步骤，也为了以后让室友们参考

创建项目

File→new→project

 

 

 

 

 

 

然后就不断next直到项目面板出来

设置文件夹

 

 

 

 

注意：这里我个人习惯,在java下还建了ssm文件夹，然后再controll...文件夹,建议跟我一样，不然你后面配置文件需要更改

 

 

将项目文件夹设置成这个样子

配置文件

• 先修改pom.xml导入项目所需依赖

<?xml version="1.0" encoding="UTF-8"?>

<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">
  <modelVersion>4.0.0</modelVersion>

  <groupId>com.zhh</groupId>
  <artifactId>MavenTest</artifactId>
  <version>1.0-SNAPSHOT</version>
  <packaging>war</packaging>

  <name>MavenTest Maven Webapp</name>
  <!-- FIXME change it to the project's website -->
  <url>http://www.example.com</url>

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>1.7</maven.compiler.source>
    <maven.compiler.target>1.7</maven.compiler.target>
    <!-- 配置相关jar包的版本 -->
    <spring.version>4.3.4.RELEASE</spring.version>
    <aspectj.version>1.8.9</aspectj.version>
    <mybatis.version>3.4.1</mybatis.version>
    <mybatis-spring.version>1.3.0</mybatis-spring.version>
    <jdbc.version>5.1.35</jdbc.version>
    <fastjson.version>1.2.23</fastjson.version>
    <log4j.version>2.7</log4j.version>
    <servlet.version>3.0-alpha-1</servlet.version>
  </properties>

  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.11</version>
      <scope>test</scope>
    </dependency>
    <!-- 添加spring依赖 -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-jdbc</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.aspectj</groupId>
      <artifactId>aspectjweaver</artifactId>
      <version>${aspectj.version}</version>
    </dependency>


    <!-- 添加mybatis依赖 -->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis</artifactId>
      <version>${mybatis.version}</version>
    </dependency>

    <!-- 添加mybatis-spring依赖 -->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis-spring</artifactId>
      <version>${mybatis-spring.version}</version>
    </dependency>

    <!-- 数据库驱动 -->
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>${jdbc.version}</version>
    </dependency>

    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-databind</artifactId>
      <version>2.7.4</version>
    </dependency>
    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-core</artifactId>
      <version>2.7.4</version>
    </dependency>
    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-annotations</artifactId>
      <version>2.7.4</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/commons-dbcp/commons-dbcp -->
    <dependency>
      <groupId>commons-dbcp</groupId>
      <artifactId>commons-dbcp</artifactId>
      <version>1.4</version>
    </dependency>
    <!-- apache公共包 -->
    <dependency>
      <groupId>commons-codec</groupId>
      <artifactId>commons-codec</artifactId>
      <version>1.10</version>
    </dependency>

    <dependency>
      <groupId>commons-lang</groupId>
      <artifactId>commons-lang</artifactId>
      <version>2.5</version>
    </dependency>

    <dependency>
      <groupId>commons-beanutils</groupId>
      <artifactId>commons-beanutils</artifactId>
      <version>1.8.0</version>
    </dependency>

    <dependency>
      <groupId>commons-collections</groupId>
      <artifactId>commons-collections</artifactId>
      <version>3.2.1</version>
    </dependency>

    <dependency>
      <groupId>commons-logging</groupId>
      <artifactId>commons-logging</artifactId>
      <version>1.1.1</version>
    </dependency>

    <dependency>
      <groupId>net.sf.ezmorph</groupId>
      <artifactId>ezmorph</artifactId>
      <version>1.0.6</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/com.alibaba/fastjson -->
    <dependency>
      <groupId>com.alibaba</groupId>
      <artifactId>fastjson</artifactId>
      <version>1.2.41</version>
    </dependency>
    <!-- log4j -->
    <dependency>
      <groupId>org.apache.logging.log4j</groupId>
      <artifactId>log4j-core</artifactId>
      <version>${log4j.version}</version>
    </dependency>
    <!-- JSTL标签类 -->
    <dependency>
      <groupId>jstl</groupId>
      <artifactId>jstl</artifactId>
      <version>1.2</version>
    </dependency>
    <!-- serlvet -->
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>servlet-api</artifactId>
      <version>${servlet.version}</version>
      <scope>provided</scope>
    </dependency>
  </dependencies>

  <build>
    <finalName>MavenTest</finalName>
    <pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
      <plugins>
        <plugin>
          <artifactId>maven-clean-plugin</artifactId>
          <version>3.0.0</version>
        </plugin>
        <!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_packaging -->
        <plugin>
          <artifactId>maven-resources-plugin</artifactId>
          <version>3.0.2</version>
        </plugin>
        <plugin>
          <artifactId>maven-compiler-plugin</artifactId>
          <version>3.7.0</version>
        </plugin>
        <plugin>
          <artifactId>maven-surefire-plugin</artifactId>
          <version>2.20.1</version>
        </plugin>
        <plugin>
          <artifactId>maven-war-plugin</artifactId>
          <version>3.2.0</version>
        </plugin>
        <plugin>
          <artifactId>maven-install-plugin</artifactId>
          <version>2.5.2</version>
        </plugin>
        <plugin>
          <artifactId>maven-deploy-plugin</artifactId>
          <version>2.8.2</version>
        </plugin>
      </plugins>
    </pluginManagement>
  </build>
</project>

注意：如果出现提示，按这两个图选择，才能导入依赖

 

 

 

 

这是导入成功后的

 

 

• 修改WEB-INF文件夹下的web.xml

<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
    http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">

    <!-- 设置Spring容器加载配置文件的路径 -->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:spring-mybatis.xml</param-value>
    </context-param>




    <!--解决POST乱码问题-->
    <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>
    <!-- Spring监听器 -->
    <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>

    <!--springmvc前端控制器配置-->
    <servlet>
        <servlet-name>dispatcherServlet</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath*:spring-mvc.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>

    <servlet-mapping>
        <servlet-name>dispatcherServlet</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>

</web-app>

　　

因为还没有设置springmvc.xml，所以会报错没关系

• 在resources文件夹下新建jdbc.properties log4.properties spring-mvc.xml spring-mybatis.xml
  代码如下
  jdbc.properties

jdbc.driver=com.mysql.jdbc.Driver

jdbc.url=jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=UTF-8

jdbc.username=root

jdbc.password=root
#定义初始连接数
initialSize=0  
#定义最大连接数
maxActive=20  
#定义最大空闲
maxIdle=20  
#定义最小空闲
minIdle=1  
#定义最长等待时间
maxWait=60000  

log4.properties

log4j.rootLogger=INFO,Console,File  

#控制台日志
log4j.appender.Console=org.apache.log4j.ConsoleAppender  
log4j.appender.Console.Target=System.out  
log4j.appender.Console.layout=org.apache.log4j.PatternLayout  
log4j.appender.Console.layout.ConversionPattern=[%p][%t][%d{yyyy-MM-dd HH:mm:ss}][%C] - %m%n  

#普通文件日志
log4j.appender.File=org.apache.log4j.RollingFileAppender  
log4j.appender.File.File=logs/ssm.log  
log4j.appender.File.MaxFileSize=10MB  
#输出日志，如果换成DEBUG表示输出DEBUG以上级别日志
log4j.appender.File.Threshold=ALL  
log4j.appender.File.layout=org.apache.log4j.PatternLayout  
log4j.appender.File.layout.ConversionPattern=[%p][%t][%d{yyyy-MM-dd HH:mm:ss}][%C] - %m%n  

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

    <!-- 自动扫描  @Controller-->
    <context:component-scan base-package="ssm.controller"/>
    <!-- 默认的注解映射 -->
    <mvc:annotation-driven />

    <!-- 解除servlet对静态资源文件访问的限制，使得静态资源先经过 -->
    <!--  <mvc:default-servlet-handler />-->

    <mvc:resources mapping="/static/**" location="/static/" />
    <!--避免IE执行AJAX时，下载JSON文件的现象 -->
    <bean id="mappingJacksonHttpMessageConverter"
          class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
        <property name="supportedMediaTypes">
            <list>
                <value>text/html;charset=UTF-8</value>
            </list>
        </property>
    </bean>
    <!-- 启动SpringMVC的注解功能，完成请求和注解POJO的映射 -->
    <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
        <property name="messageConverters">
            <list>
                <ref bean="mappingJacksonHttpMessageConverter"/> <!-- JSON转换器 -->
            </list>
        </property>
    </bean>


    <!-- 定义跳转的文件的前后缀 ，视图模式配置-->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <!-- 自动给后面action的方法return的字符串加上前缀和后缀，变成一个 可用的url地址 -->
        <property name="prefix" value="/WEB-INF/page/" />
        <property name="suffix" value=".jsp" />
    </bean>

</beans>

静态文件例如css、js存放在static下(静态资源只放开这个文件夹的访问)
默认页面存放路径在WEB-INF文件夹下的page文件夹下，没有自己新建
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:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
                        http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
                        http://www.springframework.org/schema/context
                        http://www.springframework.org/schema/context/spring-context-3.1.xsd
                        http://www.springframework.org/schema/tx
                        http://www.springframework.org/schema/tx/spring-tx.xsd">

    <!-- 组件扫描和自动装配 -->
    <context:component-scan base-package="ssm"/>

    <!-- 加载属性配置文件 -->
    <context:property-placeholder location="classpath:jdbc.properties"/>


    <!-- 配置数据源 -->
    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
        <property name="driverClassName" value="${jdbc.driver}"/>
        <property name="url" value="${jdbc.url}"/>
        <property name="username" value="${jdbc.username}"/>
        <property name="password" value="${jdbc.password}"/>
    </bean>


    <!-- spring和MyBatis完美整合，不需要mybatis的配置映射文件 -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <!-- 自动扫描mapping.xml文件 -->
        <property name="mapperLocations" value="classpath*:mapper/*.xml"></property>
    </bean>


    <!-- DAO接口所在包名，Spring会自动查找其下的类 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="ssm.dao"/>
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
    </bean>


    <!-- (事务管理)transaction manager, use JtaTransactionManager for global tx -->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"/>
    </bean>

    <!-- (事务管理)transaction manager, use JtaTransactionManager for global tx -->
    <tx:annotation-driven transaction-manager="transactionManager"/>

</beans>

配置文件基本就做好了，现在的文件夹是这个样子的

 

 

现在就可以配置tomcat试着跑一遍了

 

 

 

 

 

 

 

 

然后运行就可以了

 

 

运行结果

 

 

为了方便项目对数据库表的使用,我们使用MyBatis Generator自动生成代码

在resources下创建generatorConfig.xml文件

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE generatorConfiguration PUBLIC
        "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
        "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd" >
<generatorConfiguration>

    <!--数据库驱动jar包的真实路径 -->
    <classPathEntry
            location="D:dataSourceDrivermysql-connector-java-5.1.47.jar"/>

    <context id="context" targetRuntime="MyBatis3">
        <!-- 是否去除自动生成的注释 true：是 ： false:否 -->
        <commentGenerator>
            <property name="suppressAllComments" value="false"/>
            <property name="suppressDate" value="true"/>
        </commentGenerator>

        <!--数据库连接的信息：驱动类、连接地址、用户名、密码 -->
        <jdbcConnection driverClass="com.mysql.jdbc.Driver"
                        connectionURL="jdbc:mysql://localhost:3306/test"
                        userId="root"
                        password="root"/>
        <!-- 默认false，把JDBC DECIMAL 和 NUMERIC 类型解析为 Integer，为 true时把JDBC DECIMAL 和
            NUMERIC 类型解析为java.math.BigDecimal -->
        <javaTypeResolver>
            <property name="forceBigDecimals" value="false"/>
        </javaTypeResolver>

        <!--指定包名生成实体类 以及生成的地址 （可以自定义地址，如果路径不存在会自动创建） -->
        <javaModelGenerator targetPackage="ssm.model" targetProject=".srcmainjava">
            <!-- enableSubPackages:是否让schema作为包的后缀 -->
            <property name="enableSubPackages" value="false"/>
            <!-- 从数据库返回的值被清理前后的空格 -->
            <property name="trimStrings" value="true"/>
        </javaModelGenerator>

        <!-- !!!! Mapper XML Configurations !!!! -->
        <sqlMapGenerator targetPackage="mapper" targetProject="F:ideaProjectMavenTestsrcmain
esources">
            <property name="enableSubPackages" value="false"/>
        </sqlMapGenerator>

        <!-- !!!! Mapper Interface Configurations !!!! -->
        <javaClientGenerator targetPackage="ssm.dao" targetProject=".srcmainjava"
                             type="XMLMAPPER">
            <property name="enableSubPackages" value="false"/>
        </javaClientGenerator>

        <!-- %占位符，生成所有表 -->
        <!-- tableName是你要生成的表名 -->

　　　　<table tableName="%" enableCountByExample="false"
       enableUpdateByExample="false"
       enableDeleteByExample="false"
       enableSelectByExample="false"
       selectByExampleQueryId="false">

　　　　</table>

</context> </generatorConfiguration>

这里得注意
<classPathEntry
location="D:dataSourceDrivermysql-connector-java-5.1.47.jar"/>
这里写你自己电脑硬盘上的包的路径，

<sqlMapGenerator targetPackage="mapper" targetProject="F:ideaProjectMavenTestsrcmain esources">
<property name="enableSubPackages" value="false"/>
</sqlMapGenerator>
这里写你项目所在工作目录，设置mapper.xml生成文件位置

• 在pom.xml中加入

<plugins>
          <plugin>
              <groupId>org.mybatis.generator</groupId>
              <artifactId>mybatis-generator-maven-plugin</artifactId>
              <version>1.3.7</version>
              <configuration>
                  <verbose>true</verbose>
                  <overwrite>true</overwrite>
              </configuration>
          </plugin>
      </plugins>

 

 

• 点击右边的

  
  
   

  

   
  
  

  右键

  
  
   

  

   
  
  正常情况应该生成成功，如果失败根据情况修改
• 注意：这里有时候会抛出异常

  元素类型为 "context" 的内容必须匹配 "(property*,plugin*,commentGenerator?,(connectionFactory|jdbcConnection),jav

  一般是空格问题，因为table标签没有和上面对齐

• 这时候我们的项目环境已经全部完成

  
  
   

  

   
• 可以写代码实现功能增删改查了，这里使用显示功能

1. 在AdminMapper中增加方法
   

   <select id="AdminList" resultMap="BaseResultMap">
   select * from admin
   </select>

   
   
    

   

    

2.在dao层写相应方法
List<Admin> AdminList();

 

 

3.在service层写相应方法
先在service文件夹下创建AdminService接口，然后写上方法
List<Admin> AdminList();
4.在impl层实现

 

 

@Service("AdminService")
public class AdminServiceimpl implements AdminService {
    @Autowired
    private AdminMapper adminMapper;
    @Override
    public List<Admin> AdminList() {
        return adminMapper.AdminList();
    }
}

5.在controller层写方法

@Controller
@RequestMapping("Admin")
public class AdminController {
    @Autowired
    private AdminService adminService;
    @RequestMapping("show")
    public String show(Model model){
        List<Admin> list=adminService.AdminList();
        model.addAttribute("list",list);
        return "showAdmin";
    }
}

然后在page文件夹下新建showAdmin.jsp
先引入

<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>

然后主要代码

<c:forEach items="${list}" var="item">
    <tr>
        <td height="25" >${item.id}</td>
        <td >${item.username}</td>
        <td >${item.password}</td>
     </tr>

</c:forEach>

 

 

显示结果