Maven基本项目模板配置，从小到大的配置 逐渐累加

最新推荐文章于 2024-05-16 12:50:39 发布
最新推荐文章于 2024-05-16 12:50:39 发布
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分类专栏： SSM 文章标签： mybatis web.xml log4j2 slf4j maven
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本文链接：https://blog.youkuaiyun.com/xiaoliang98/article/details/110138574
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Maven基本项目模板

文章目录


前提要求：能够生成两个简单的maven项目。以及包名之间规范要求。

在这里插入图片描述

以下是我创建包名的习惯(不一定全部需要)：

quickstart中就沒有webapp

  • main
    • java
      • com.ppl
        • controller
        • dao
          • mapper
        • service
        • entity
          • vo
          • pojo
    • resources
      • config
      • mappers
  • test
  • webapp
    • css
    • js
    • images
    • layui（或者其他前端工具）
    • WEB-INF
      • jsp
      • web.xml
    • login.xml

​ 环境是配置一个头秃问题。建议和博主（大版本）一样或者环境比博主高，再进行以下操作。以下只是博主的个人习惯，以后查询所需，并不会提供相应解释。若有更简便的操作可以留言讨论。建议添加插件：easy code，

Free MyBatis ，Lombok。

环境：idea 2019.2.4 mysql 8 jdk1.8 maven3.6.2

Maven+SpringIOC

pom.xml

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>1.8</maven.compiler.source>
    <maven.compiler.target>1.8</maven.compiler.target>
</properties>
<!--IOC-->
  <dependencies>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context</artifactId>
      <version>5.2.9.RELEASE</version>
    </dependency>

    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.12</version>
      <scope>test</scope>
    </dependency>
<!--实体类-->
    <dependency>
      <groupId>org.projectlombok</groupId>
      <artifactId>lombok</artifactId>
      <version>1.18.16</version>
      <scope>provided</scope>
    </dependency>
  </dependencies>

mappers/spring-context.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns="http://www.springframework.org/schema/beans"
       xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
       http://www.springframework.org/schema/context
       http://www.springframework.org/schema/context/spring-context-4.3.xsd ">

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

</beans>

springIOC链接

Maven+IOC+Mybatis

pom.xml

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>1.8</maven.compiler.source>
    <maven.compiler.target>1.8</maven.compiler.target>
  </properties>

  <!--IOC-->
  <dependencies>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context</artifactId>
      <version>5.2.9.RELEASE</version>
    </dependency>

    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.12</version>
      <scope>test</scope>
    </dependency>
    <!--实体类-->
    <dependency>
      <groupId>org.projectlombok</groupId>
      <artifactId>lombok</artifactId>
      <version>1.18.16</version>
      <scope>provided</scope>
    </dependency>

    <!--整合mybatis c3p0连接池 mybatis mybatis与Spring整合 mysql 驱动包 spring-jdbc-->
    <!-- c3p0 连接池 -->
    <dependency>
      <groupId>com.mchange</groupId>
      <artifactId>c3p0</artifactId>
      <version>0.9.5.2</version>
    </dependency>

    <!-- mybatis -->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis</artifactId>
      <version>3.5.3</version>
    </dependency>

    <!-- 添加mybatis与Spring整合的核心包 -->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis-spring</artifactId>
      <version>2.0.3</version>
    </dependency>

    <!-- mysql 驱动包 -->
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>8.0.19</version>
    </dependency>
    <!-- spring jdbc -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-jdbc</artifactId>
      <version>5.2.4.RELEASE</version>
    </dependency>
  </dependencies>

  <build>
    <!--
             Maven 项目:如果源代码(src/main/java)存在xml、properties、tld 等文件
             Maven 默认不会自动编译该文件到输出目录,如果要编译源代码中xml properties tld 等文件
             需要显式配置 resources 标签
          -->
    <resources>
      <resource>
        <directory>src/main/resources</directory>
      </resource>
      <resource>
        <directory>src/main/java</directory>
        <includes>
          <include>**/*.xml</include>
          <include>**/*.properties</include>
          <include>**/*.tld</include>
        </includes>
        <filtering>false</filtering>
      </resource>
    </resources>
  </build>
</project>

config/db.properties

jdbc.driver=com.mysql.cj.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/ppl?useUnicode=true&characterEncoding=utf8&serverTimezone=GMT%2B8&useSSL=false
jdbc.username=root
jdbc.password=123456

mappers/spring-context.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns="http://www.springframework.org/schema/beans"
       xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
       http://www.springframework.org/schema/context
       http://www.springframework.org/schema/context/spring-context-4.3.xsd ">
<!--IOC开启扫描-->
    <context:component-scan base-package="com.ppl"></context:component-scan>
    
<!--mybatis的配置-->
    <!-- 加载properties 配置文件 -->
    <context:property-placeholder location="classpath:config/db.properties" />

    <!-- 配置c3p0 数据源 -->
    <bean id="dataSource" 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 sqlSessionFactory -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"></property>
        <property name="configLocation" value="classpath:mappers/mybatis.xml" />
        <property name="mapperLocations" value="classpath:com/ppl/dao/mapper/*.xml" />
    </bean>

    <!-- 配置扫描器 -->
    <bean id="mapperScanner" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!-- 扫描com.ppl.dao这个包以及它的子包下的所有映射接口类 -->
        <property name="basePackage" value="com.ppl.dao" />
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />
    </bean>
</beans>

mappers/mybatis.xml

<?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>
    <!-- 实体类开启驼峰命名规则自动匹配 -->
    <settings>
        <setting name="mapUnderscoreToCamelCase" value="true"/>
    </settings>
    <!-- 实体类别名 -->
    <typeAliases>
        <package name="com.ppl.entity.pojo"/>
    </typeAliases>

</configuration>

Maven+IOC+mybatis+log4j+Junit

pom.xml

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>1.8</maven.compiler.source>
    <maven.compiler.target>1.8</maven.compiler.target>
  </properties>

  <dependencies>
      <!--IOC-->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context</artifactId>
      <version>5.2.9.RELEASE</version>
    </dependency>

    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.12</version>
      <scope>test</scope>
    </dependency>
    <!--实体类-->
    <dependency>
      <groupId>org.projectlombok</groupId>
      <artifactId>lombok</artifactId>
      <version>1.18.16</version>
      <scope>provided</scope>
    </dependency>

    <!--整合mybatis c3p0连接池 mybatis mybatis与Spring整合 mysql 驱动包 spring-jdbc-->
    <!-- c3p0 连接池 -->
    <dependency>
      <groupId>com.mchange</groupId>
      <artifactId>c3p0</artifactId>
      <version>0.9.5.2</version>
    </dependency>

    <!-- mybatis -->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis</artifactId>
      <version>3.5.3</version>
    </dependency>

    <!-- 添加mybatis与Spring整合的核心包 -->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis-spring</artifactId>
      <version>2.0.3</version>
    </dependency>

    <!-- mysql 驱动包 -->
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>8.0.19</version>
    </dependency>
    <!-- spring jdbc -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-jdbc</artifactId>
      <version>5.2.4.RELEASE</version>
    </dependency>

    <!-- 日志打印相关的jar -->
    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-log4j12</artifactId>
      <version>1.7.2</version>
    </dependency>
    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-api</artifactId>
      <version>1.7.2</version>
    </dependency>

    <!-- spring 测试jar -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-test</artifactId>
      <version>5.2.4.RELEASE</version>
    </dependency>
  </dependencies>

  <build>
    <!--
             Maven 项目:如果源代码(src/main/java)存在xml、properties、tld 等文件
             Maven 默认不会自动编译该文件到输出目录,如果要编译源代码中xml properties tld 等文件
             需要显式配置 resources 标签
          -->
    <resources>
      <resource>
        <directory>src/main/resources</directory>
      </resource>
      <resource>
        <directory>src/main/java</directory>
        <includes>
          <include>**/*.xml</include>
          <include>**/*.properties</include>
          <include>**/*.tld</include>
        </includes>
        <filtering>false</filtering>
      </resource>
    </resources>
  </build>

mappers/mybatis.xml 和上一个项目中一样

mappers/spring-context.xml 和上一个项目中一样

config/db.properties 和上一个项目中一样

resources/log4j.properties

log4j.rootLogger=DEBUG, Console
# Console
log4j.appender.Console=org.apache.log4j.ConsoleAppender
log4j.appender.Console.layout=org.apache.log4j.PatternLayout
log4j.appender.Console.layout.ConversionPattern=%d [%t] %-5p [%c] - %m%n
log4j.logger.java.sql.ResultSet=INFO
log4j.logger.org.apache=INFO
log4j.logger.java.sql.Connection=DEBUG
log4j.logger.java.sql.Statement=DEBUG
log4j.logger.java.sql.PreparedStatement=DEBUG

test/java…Test01.java案例

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = "classpath:mappers/spring-context.xml")
public class AppTest {
    @Resource
    private UserMapper userMapper;
    @Test
    public void testAC(){
        List<User> allUser = userMapper.findAllUser();
        System.out.println(allUser);
    }
}

Maven+IOC+mybatis+log4j+Junit+AOP+tx(事务)

pom.xml

 <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>1.8</maven.compiler.source>
    <maven.compiler.target>1.8</maven.compiler.target>
  </properties>

  <dependencies>
    <!--IOC-->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context</artifactId>
      <version>5.2.9.RELEASE</version>
    </dependency>

    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.12</version>
      <scope>test</scope>
    </dependency>

    <!--实体类-->
    <dependency>
      <groupId>org.projectlombok</groupId>
      <artifactId>lombok</artifactId>
      <version>1.18.16</version>
    </dependency>

    <!--整合mybatis c3p0连接池 mybatis mybatis与Spring整合 mysql 驱动包 spring-jdbc-->
    <!-- c3p0 连接池 -->
    <dependency>
      <groupId>com.mchange</groupId>
      <artifactId>c3p0</artifactId>
      <version>0.9.5.2</version>
    </dependency>

    <!-- mybatis -->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis</artifactId>
      <version>3.5.3</version>
    </dependency>

    <!-- 添加mybatis与Spring整合的核心包 -->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis-spring</artifactId>
      <version>2.0.3</version>
    </dependency>

    <!-- mysql 驱动包 -->
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>8.0.19</version>
    </dependency>
    <!-- spring jdbc -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-jdbc</artifactId>
      <version>5.2.4.RELEASE</version>
    </dependency>

    <!-- 日志打印相关的jar -->
    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-log4j12</artifactId>
      <version>1.7.2</version>
    </dependency>
    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-api</artifactId>
      <version>1.7.2</version>
    </dependency>

    <!-- spring 测试jar -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-test</artifactId>
      <version>5.2.4.RELEASE</version>
    </dependency>

    <!-- spring事务 -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-tx</artifactId>
      <version>5.2.4.RELEASE</version>
    </dependency>

    <!-- aspectj切面编程的jar -->
    <dependency>
      <groupId>org.aspectj</groupId>
      <artifactId>aspectjweaver</artifactId>
      <version>1.9.5</version>
    </dependency>

  </dependencies>

  <build>
    <!--
             Maven 项目:如果源代码(src/main/java)存在xml、properties、tld 等文件
             Maven 默认不会自动编译该文件到输出目录,如果要编译源代码中xml properties tld 等文件
             需要显式配置 resources 标签
          -->
    <resources>
      <resource>
        <directory>src/main/resources</directory>
      </resource>
      <resource>
        <directory>src/main/java</directory>
        <includes>
          <include>**/*.xml</include>
          <include>**/*.properties</include>
          <include>**/*.tld</include>
        </includes>
        <filtering>false</filtering>
      </resource>
    </resources>
  </build>

config/db.properties

jdbc.driver=com.mysql.cj.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/ppl?useUnicode=true&characterEncoding=utf8&serverTimezone=GMT%2B8&useSSL=false
jdbc.username=root
jdbc.password=123456

mappers/mybatis.xml

<?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>
    <!-- 实体类开启驼峰命名规则自动匹配 -->
    <settings>
        <setting name="mapUnderscoreToCamelCase" value="true"/>
    </settings>
    <!-- 实体类别名 -->
    <typeAliases>
        <package name="com.ppl.entity.pojo"/>
    </typeAliases>

</configuration>

mappers/spring-context.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns="http://www.springframework.org/schema/beans"
       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-4.3.xsd
       http://www.springframework.org/schema/context
       http://www.springframework.org/schema/context/spring-context-4.3.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">
<!--IOC开启扫描-->
    <context:component-scan base-package="com.ppl"></context:component-scan>

<!--整合mybatis的配置-->
    <!-- 加载properties 配置文件 -->
    <context:property-placeholder location="classpath:config/db.properties" />


    <!-- 配置c3p0 数据源 -->
    <bean id="dataSource" 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 sqlSessionFactory -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"></property>
        <property name="configLocation" value="classpath:mappers/mybatis.xml" />
        <property name="mapperLocations" value="classpath:com/ppl/dao/mapper/*.xml" />
    </bean>

    <!-- 配置扫描器 -->
    <bean id="mapperScanner" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!-- 扫描com.ppl.dao这个包以及它的子包下的所有映射接口类 -->
        <property name="basePackage" value="com.ppl.dao" />
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />
    </bean>

<!--事务处理 aop 以及DataSourceTransactionManager 事务处理器-->
    <!-- aop扫描 -->
    <aop:aspectj-autoproxy />

    <!-- 配置事务管理器 -->
    <bean id="txManager"
          class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"></property>
    </bean>

    <!-- 设置事物增强 切入点设置-->
    <tx:advice id="txAdvice" transaction-manager="txManager">
        <tx:attributes>
            <tx:method name="transfer*" propagation="REQUIRED" />
            <tx:method name="insert*" propagation="REQUIRED" />
            <tx:method name="update*" propagation="REQUIRED" />
            <tx:method name="delete*" propagation="REQUIRED" />
        </tx:attributes>
    </tx:advice>

    <!-- aop 切面配置 -->
    <aop:config>
        <aop:pointcut id="servicePointcut" expression="execution(* com.ppl.service..*.*(..))" />
        <aop:advisor advice-ref="txAdvice" pointcut-ref="servicePointcut" />
    </aop:config>
</beans>

resources/log4j.properties

log4j.rootLogger=DEBUG, Console
# Console
log4j.appender.Console=org.apache.log4j.ConsoleAppender
log4j.appender.Console.layout=org.apache.log4j.PatternLayout
log4j.appender.Console.layout.ConversionPattern=%d [%t] %-5p [%c] - %m%n
log4j.logger.java.sql.ResultSet=INFO
log4j.logger.org.apache=INFO
log4j.logger.java.sql.Connection=DEBUG
log4j.logger.java.sql.Statement=DEBUG
log4j.logger.java.sql.PreparedStatement=DEBUG

Maven+mvc（入门项目）

pom.xml

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>1.8</maven.compiler.source>
    <maven.compiler.target>1.8</maven.compiler.target>
  </properties>

  <dependencies>
    <!--IOC-->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context</artifactId>
      <version>5.2.9.RELEASE</version>
    </dependency>

    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.12</version>
      <scope>test</scope>
    </dependency>

    <!--实体类-->
    <dependency>
      <groupId>org.projectlombok</groupId>
      <artifactId>lombok</artifactId>
      <version>1.18.16</version>
    </dependency>

    <!--整合mybatis c3p0连接池 mybatis mybatis与Spring整合 mysql 驱动包 spring-jdbc-->
    <!-- c3p0 连接池 -->
    <dependency>
      <groupId>com.mchange</groupId>
      <artifactId>c3p0</artifactId>
      <version>0.9.5.2</version>
    </dependency>

    <!-- mybatis -->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis</artifactId>
      <version>3.5.3</version>
    </dependency>

    <!-- 添加mybatis与Spring整合的核心包 -->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis-spring</artifactId>
      <version>2.0.3</version>
    </dependency>

    <!-- mysql 驱动包 -->
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>8.0.19</version>
    </dependency>
    <!-- spring jdbc -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-jdbc</artifactId>
      <version>5.2.4.RELEASE</version>
    </dependency>

    <!-- 日志打印相关的jar -->
    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-log4j12</artifactId>
      <version>1.7.2</version>
    </dependency>
    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-api</artifactId>
      <version>1.7.2</version>
    </dependency>

    <!-- spring 测试jar -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-test</artifactId>
      <version>5.2.4.RELEASE</version>
    </dependency>

    <!-- spring事务 -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-tx</artifactId>
      <version>5.2.4.RELEASE</version>
    </dependency>

    <!-- aspectj切面编程的jar -->
    <dependency>
      <groupId>org.aspectj</groupId>
      <artifactId>aspectjweaver</artifactId>
      <version>1.9.5</version>
    </dependency>

    <!-- spring web -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-web</artifactId>
      <version>5.2.4.RELEASE</version>
    </dependency>
    <!-- spring mvc -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>5.2.4.RELEASE</version>
    </dependency>
    <!-- web servlet -->
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>javax.servlet-api</artifactId>
      <version>3.0.1</version>
    </dependency>

  </dependencies>

  <build>
    <finalName>spring_mvc</finalName>
    <!--
                Maven 项目:如果源代码(src/main/java)存在xml、properties、tld 等文件
                Maven 默认不会自动编译该文件到输出目录,如果要编译源代码中xml properties tld 等文件
                需要显式配置 resources 标签
             -->
    <resources>
      <resource>
        <directory>src/main/resources</directory>
      </resource>
      <resource>
        <directory>src/main/java</directory>
        <includes>
          <include>**/*.xml</include>
          <include>**/*.properties</include>
          <include>**/*.tld</include>
        </includes>
        <filtering>false</filtering>
      </resource>
    </resources>
    <plugins>
    <!-- 编译环境插件 -->
    <plugin>
      <groupId>org.apache.maven.plugins</groupId>
      <artifactId>maven-compiler-plugin</artifactId>
      <version>2.3.2</version>
      <configuration>
        <source>1.8</source>
        <target>1.8</target>
        <encoding>UTF-8</encoding>
      </configuration>
    </plugin>
    <!-- jetty插件 -->
    <plugin>
    <groupId>org.eclipse.jetty</groupId>
    <artifactId>jetty-maven-plugin</artifactId>
    <version>9.4.27.v20200227</version>
    <configuration>
    <scanIntervalSeconds>10</scanIntervalSeconds>
    <!-- 设置端⼝ -->
    <httpConnector>
      <port>8080</port>
    </httpConnector>
    <!-- 设置项⽬路径 -->
      <webAppConfig>
        <contextPath>/</contextPath>
      </webAppConfig>
    </configuration>
    </plugin>

    </plugins>
  </build>

webapp/WEB-INF/web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_ID" version="3.0"
         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_3_0.xsd">
    <!-- 编码过滤 utf-8 -->
    <filter>
        <description>char encoding filter</description>
        <filter-name>encodingFilter</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>encodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

    <!-- servlet请求分发器 -->
    <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:mappers/spring-context.xml</param-value>
        </init-param>
        <!-- 表示启动容器时初始化该Servlet -->
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>springMvc</servlet-name>
        <!-- 这是拦截请求， "/"代表拦截所有请求，"*.do"拦截所有.do请求 -->
         <url-pattern>/</url-pattern>
<!--        <url-pattern>*.do</url-pattern>-->
    </servlet-mapping>
</web-app>

resources/log4j.properties

log4j.rootLogger=DEBUG, Console
# Console
log4j.appender.Console=org.apache.log4j.ConsoleAppender
log4j.appender.Console.layout=org.apache.log4j.PatternLayout
log4j.appender.Console.layout.ConversionPattern=%d [%t] %-5p [%c] - %m%n
log4j.logger.java.sql.ResultSet=INFO
log4j.logger.org.apache=INFO
log4j.logger.java.sql.Connection=DEBUG
log4j.logger.java.sql.Statement=DEBUG
log4j.logger.java.sql.PreparedStatement=DEBUG

config/db.properties

jdbc.driver=com.mysql.cj.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/ppl?useUnicode=true&characterEncoding=utf8&serverTimezone=GMT%2B8&useSSL=false
jdbc.username=root
jdbc.password=123456

mappers/mybatis.xml

<?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>
    <!-- 实体类开启驼峰命名规则自动匹配 -->
    <settings>
        <setting name="mapUnderscoreToCamelCase" value="true"/>
    </settings>
    <!-- 实体类别名 -->
    <typeAliases>
        <package name="com.ppl.entity.pojo"/>
    </typeAliases>

</configuration>

mappers/spring-context.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns="http://www.springframework.org/schema/beans"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
       http://www.springframework.org/schema/context
       http://www.springframework.org/schema/context/spring-context-4.3.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
       http://www.springframework.org/schema/mvc
       http://www.springframework.org/schema/mvc/spring-mvc.xsd">
<!--IOC开启扫描-->
    <context:component-scan base-package="com.ppl"></context:component-scan>

<!--整合mybatis的配置-->
    <!-- 加载properties 配置文件 -->
    <context:property-placeholder location="classpath:config/db.properties" />


    <!-- 配置c3p0 数据源 -->
    <bean id="dataSource" 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 sqlSessionFactory -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"></property>
        <property name="configLocation" value="classpath:mappers/mybatis.xml" />
        <property name="mapperLocations" value="classpath:com/ppl/dao/mapper/*.xml" />
    </bean>

    <!-- 配置扫描器 -->
    <bean id="mapperScanner" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!-- 扫描com.ppl.dao这个包以及它的子包下的所有映射接口类 -->
        <property name="basePackage" value="com.ppl.dao" />
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />
    </bean>

<!--事务处理 aop 以及DataSourceTransactionManager 事务处理器-->
    <!-- aop扫描 -->
    <aop:aspectj-autoproxy />

    <!-- 配置事务管理器 -->
    <bean id="txManager"
          class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"></property>
    </bean>

    <!-- 设置事物增强 切入点设置-->
    <tx:advice id="txAdvice" transaction-manager="txManager">
        <tx:attributes>
            <tx:method name="transfer*" propagation="REQUIRED" />
            <tx:method name="insert*" propagation="REQUIRED" />
            <tx:method name="update*" propagation="REQUIRED" />
            <tx:method name="delete*" propagation="REQUIRED" />
        </tx:attributes>
    </tx:advice>

    <!-- aop 切面配置 -->
    <aop:config>
        <aop:pointcut id="servicePointcut" expression="execution(* com.ppl.service..*.*(..))" />
        <aop:advisor advice-ref="txAdvice" pointcut-ref="servicePointcut" />
    </aop:config>

<!--MVC controller的配置-->
    <!-- 开启扫描器 -->
    <context:component-scan base-package="com.ppl.controller"/>
    <!-- 使⽤默认的 Servlet 来响应静态⽂件 -->
    <mvc:default-servlet-handler/>
    <!-- 开启注解驱动-->
    <mvc:annotation-driven/>
    <!-- 配置视图解析器 -->
    <bean
            class="org.springframework.web.servlet.view.InternalResourceViewResolver"
            id="internalResourceViewResolver">
        <!-- 前缀：在WEB-INF⽬录下的jsp⽬录下 -->
        <property name="prefix" value="/WEB-INF/jsp/"/>
        <!-- 后缀：以.jsp结尾的资源 -->
        <property name="suffix" value=".jsp"/>
    </bean>
</beans>

mapper/UserMapper.xml 头

<?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">

Maven+mvc 2.0

spring配置文件文成spring.xml 与Servlet-context.xml可读性增强

增加：分页 json，string数据相互转换 web拦截器 文件上传与下载功能

pom.xml

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>1.8</maven.compiler.source>
    <maven.compiler.target>1.8</maven.compiler.target>
  </properties>

  <dependencies>
    <!-- junit 测试 -->
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.12</version>
      <scope>test</scope>
    </dependency>
    <!-- spring 核⼼jar -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context</artifactId>
      <version>5.2.4.RELEASE</version>
    </dependency>
    <!-- spring 测试jar -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-test</artifactId>
      <version>5.2.4.RELEASE</version>
    </dependency>
    <!-- spring jdbc -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-jdbc</artifactId>
      <version>5.2.4.RELEASE</version>
    </dependency>
    <!-- spring事物 -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-tx</artifactId>
      <version>5.2.4.RELEASE</version>
    </dependency>
    <!-- aspectj切⾯编程的jar -->
    <dependency>
      <groupId>org.aspectj</groupId>
      <artifactId>aspectjweaver</artifactId>
      <version>1.9.5</version>
    </dependency>
    <!-- c3p0 连接池 -->
    <dependency>
      <groupId>com.mchange</groupId>
      <artifactId>c3p0</artifactId>
      <version>0.9.5.2</version>
    </dependency>
    <!-- mybatis -->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis</artifactId>
      <version>3.5.3</version>
    </dependency>
    <!-- 添加mybatis与Spring整合的核⼼包 -->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis-spring</artifactId>
      <version>2.0.3</version>
    </dependency>
    <!-- mysql 驱动包 -->
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>8.0.19</version>
    </dependency>
    <!-- ⽇志打印相关的jar -->
    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-log4j12</artifactId>
      <version>1.7.2</version>
    </dependency>
    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-api</artifactId>
      <version>1.7.2</version>
    </dependency>
    <!-- 分⻚插件 -->
    <dependency>
      <groupId>com.github.pagehelper</groupId>
      <artifactId>pagehelper</artifactId>
      <version>5.1.10</version>
    </dependency>
    <!-- spring web -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-web</artifactId>
      <version>5.2.4.RELEASE</version>
    </dependency>
    <!-- spring mvc -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>5.2.4.RELEASE</version>
    </dependency>
    <!-- web servlet -->
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>javax.servlet-api</artifactId>
      <version>3.0.1</version>
      <scope>provided</scope>
    </dependency>
    <!-- 添加json 依赖jar包（注意版本问题） -->
    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-core</artifactId>
      <version>2.10.0</version>
    </dependency>
    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-databind</artifactId>
      <version>2.10.0</version>
    </dependency>
    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-annotations</artifactId>
      <version>2.10.0</version>
    </dependency>
    <!-- commons-fileupload -->
    <dependency>
      <groupId>commons-fileupload</groupId>
      <artifactId>commons-fileupload</artifactId>
      <version>1.3.2</version>
    </dependency>
    <!--实体类-->
    <dependency>
      <groupId>org.projectlombok</groupId>
      <artifactId>lombok</artifactId>
      <version>1.18.16</version>
      <scope>provided</scope>
    </dependency>
  </dependencies>

  <build>
    <finalName>spring_mvc</finalName>
    <!--
                Maven 项目:如果源代码(src/main/java)存在xml、properties、tld 等文件
                Maven 默认不会自动编译该文件到输出目录,如果要编译源代码中xml properties tld 等文件
                需要显式配置 resources 标签
             -->
    <resources>
      <resource>
        <directory>src/main/resources</directory>
      </resource>
      <resource>
        <directory>src/main/java</directory>
        <includes>
          <include>**/*.xml</include>
          <include>**/*.properties</include>
          <include>**/*.tld</include>
        </includes>
        <filtering>false</filtering>
      </resource>
    </resources>
    <plugins>
      <!-- 编译环境插件 -->
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>2.3.2</version>
        <configuration>
          <source>1.8</source>
          <target>1.8</target>
          <encoding>UTF-8</encoding>
        </configuration>
      </plugin>
      <!-- jetty插件 -->
      <plugin>
        <groupId>org.eclipse.jetty</groupId>
        <artifactId>jetty-maven-plugin</artifactId>
        <version>9.4.27.v20200227</version>
        <configuration>
          <scanIntervalSeconds>10</scanIntervalSeconds>
          <!-- 设置端⼝ -->
          <httpConnector>
            <port>8080</port>
          </httpConnector>
          <!-- 设置项⽬路径 -->
          <webAppConfig>
            <contextPath>/</contextPath>
          </webAppConfig>
        </configuration>
      </plugin>

    </plugins>
  </build>

WEB-INF/web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_ID" version="3.0"
         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_3_0.xsd">
    <!-- 启动spring容器-->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:mappers/spring.xml</param-value>
    </context-param>

    <!-- 设置监听器 -->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener
        </listener-class>
    </listener>

    <!-- 编码过滤 utf-8 -->
    <filter>
        <description>char encoding filter</description>
        <filter-name>encodingFilter</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>encodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

    <!-- servlet请求分发器 -->
    <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:mappers/servlet-context.xml</param-value>
        </init-param>
        <!-- 表示启动容器时初始化该Servlet -->
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>springMvc</servlet-name>
        <!-- 这是拦截请求， "/"代表拦截所有请求，"*.do"拦截所有.do请求 -->
        <url-pattern>/</url-pattern>
        <!--<url-pattern>*.do</url-pattern>-->
    </servlet-mapping>
</web-app>

mappers/spring.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: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">
    <!--IOC  mybatis  AOP事务  文件上传-->
<!-- IOC 扫描基本包 -->
    <context:component-scan base-package="com.ppl" >
        <!-- context:exclude-filter标签：排除对某个注解的扫描 （过滤controller层）-->
        <context:exclude-filter type="annotation"
                                expression="org.springframework.stereotype.Controller" />
    </context:component-scan>

<!--mybatis 的配置-->
    <!-- 加载properties 配置⽂件 -->
    <context:property-placeholder location="classpath:config/db.properties" />

    <!-- 配置c3p0 数据源 -->
    <bean id="dataSource" 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 sqlSessionFactory -->
    <bean id="sqlSessionFactory"
          class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"></property>
        <property name="configLocation" value="classpath:mappers/mybatis.xml" />
        <property name="mapperLocations"
                  value="classpath:com/ppl/dao/mapper/*.xml" />
    </bean>

    <!-- 配置扫描器 -->
    <bean id="mapperScanner"
          class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!-- 扫描com.ppl.dao这个包以及它的⼦包下的所有映射接⼝类 -->
        <property name="basePackage" value="com.ppl.dao" />
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
    </bean>

<!-- AOP与事务 -->
    <aop:aspectj-autoproxy />
    <!-- 配置事务管理器 -->
    <bean id="txManager"
          class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"></property>
    </bean>
    <!-- 设置事物增强 -->
    <tx:advice id="txAdvice" transaction-manager="txManager">
        <tx:attributes>
            <tx:method name="add*" propagation="REQUIRED" />
            <tx:method name="insert*" propagation="REQUIRED" />
            <tx:method name="update*" propagation="REQUIRED" />
            <tx:method name="delete*" propagation="REQUIRED" />
        </tx:attributes>
    </tx:advice>
    <!-- aop 切⾯配置 -->
    <aop:config>
        <aop:pointcut id="servicePointcut"
                      expression="execution(* com.ppl.service..*.*(..))"/>
        <aop:advisor advice-ref="txAdvice" pointcut-ref="servicePointcut" />
    </aop:config>

<!-- ⽂件上传 -->
    <bean id="multipartResolver"
          class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
        <!-- 允许⽂件上传的最⼤尺⼨ -->
        <property name="maxUploadSize">
            <value>104857600</value>
        </property>
        <!--
            设置⽂件放⼊临时⽂件夹的最⼤⼤⼩限制。
            此值是阈值，低于此值，则保存在内存中，如⾼于此值，则⽣成硬盘上的临时⽂件。
        -->
        <property name="maxInMemorySize">
            <value>4096</value>
        </property>
    </bean>
</beans>

servlet-context.xml

<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="
       http://www.springframework.org/schema/mvc
       http://www.springframework.org/schema/mvc/spring-mvc.xsd
       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">

<!-- 开启扫描器 -->
    <context:component-scan base-package="com.ppl.controller" />


<!-- mvc 注解驱动 并添加json ⽀持 -->
    <mvc:annotation-driven>
        <mvc:message-converters>
            <!-- 返回信息为字符串时 处理 -->
            <bean
                    class="org.springframework.http.converter.StringHttpMessageConverter"/>
            <!-- 将对象转换为json 对象 -->
            <bean
                    class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"/>
        </mvc:message-converters>
    </mvc:annotation-driven>


<!-- 使⽤默认的 Servlet 来响应静态⽂件 -->
    <mvc:default-servlet-handler/>
    <!-- 配置视图解析器 -->
    <bean
            class="org.springframework.web.servlet.view.InternalResourceViewResolver" id="internalResourceViewResolver">
        <!-- 前缀：在WEB-INF⽬录下的jsp⽬录下 -->
        <property name="prefix" value="/WEB-INF/jsp/"/>
        <!-- 后缀：以.jsp结尾的资源 -->
        <property name="suffix" value=".jsp"/>
    </bean>

    <mvc:interceptors>
        <!--
        定义在 mvc:interceptor 下⾯，可以⾃定义需要拦截的请求
        如果有多个拦截器满⾜拦截处理的要求，则依据配置的先后顺序来执⾏
        -->
        <mvc:interceptor>
            <!-- 通过 mvc:mapping 配置需要拦截的资源。⽀持通配符。可配置多个。 -->
            <mvc:mapping path="/**"/> <!-- "/**"表示拦截所有的请求。 -->
            <!-- 通过 mvc:mapping 配置不需要被拦截的资源。⽀持通配符。可配置多个。 -->
            <mvc:exclude-mapping path="/url/*"/> <!-- "/url/*"表示放⾏url路径下的请求。 -->
            <bean class="com.ppl.interceptor.LoginIntercept"/>
        </mvc:interceptor>
    </mvc:interceptors>

</beans>

mappers/mybatis.xml

<?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>
    <!-- 实体类开启驼峰命名规则自动匹配 -->
    <settings>
        <setting name="mapUnderscoreToCamelCase" value="true"/>
    </settings>

    <!-- 实体类别名 -->
    <typeAliases>
        <package name="com.ppl.entity.pojo"/>
    </typeAliases>

    <!--分页操作-->
    <plugins>
        <plugin interceptor="com.github.pagehelper.PageInterceptor"></plugin>
    </plugins>

</configuration>

config/db.properties

jdbc.driver=com.mysql.cj.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/ppl?useUnicode=true&characterEncoding=utf8&serverTimezone=GMT%2B8&useSSL=false
jdbc.username=root
jdbc.password=123456

resources/log4j.properties

log4j.rootLogger=DEBUG, Console
# Console
log4j.appender.Console=org.apache.log4j.ConsoleAppender
log4j.appender.Console.layout=org.apache.log4j.PatternLayout
log4j.appender.Console.layout.ConversionPattern=%d [%t] %-5p [%c] - %m%n
log4j.logger.java.sql.ResultSet=INFO
log4j.logger.org.apache=INFO
log4j.logger.java.sql.Connection=DEBUG
log4j.logger.java.sql.Statement=DEBUG
log4j.logger.java.sql.PreparedStatement=DEBUG

dao/mapper/*.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">
<!--指明dao层下的接口-->
<mapper namespace="com.ppl.dao.*">

</mapper>

Maven +mvc 3.0

项目分享：

链接: https://pan.baidu.com/s/1vGSAYNx7gV3Mgh1UwXDCDQ 提取码: 4kkb 复制这段内容后打开百度网盘手机App，操作更方便哦

待续。。。。。。

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