使用maven和springMVC项目的结构

maven库：https://mvnrepository.com/

1、整体结构：

2、java中包含各种与逻辑、对象、DAO、服务等相关的具体实现

3、resources下包含基本的properties配置文件，mybatis_conf.xml，spring_servlet.xml，以及mapper.xml文件

4、spring_servlet.xml 示例

<?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-3.2.xsd                    http://www.springframework.org/schema/context                    http://www.springframework.org/schema/context/spring-context-3.2.xsd                    http://www.springframework.org/schema/mvc                    http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd                    ">    <!-- 返回值支持中文 -->    <mvc:annotation-driven>        <mvc:message-converters register-defaults="true">            <bean class="org.springframework.http.converter.StringHttpMessageConverter">                <!--<property name="supportedMediaTypes" value="text/plain;charset=UTF-8"/>-->                <property name="supportedMediaTypes" value="text/plain;charset=UTF-8"/>            </bean>        </mvc:message-converters>    </mvc:annotation-driven>    <!--<mvc:annotation-driven>-->        <!--<mvc:message-converters register-defaults="true">-->            <!--<bean class="org.springframework.http.converter.StringHttpMessageConverter">-->                <!--<property name="supportedMediaTypes" value = "text/plain;charset=UTF-8" />-->            <!--</bean>-->        <!--</mvc:message-converters>-->    <!--</mvc:annotation-driven>-->    <!---->    <!-- 启用spring mvc注释 -->    <context:annotation-config/>    <!-- 指定使用注解标注的包 -->    <context:component-scan base-package="包的全限定名，如com.***.***.controller"/></beans>

5、mybatis_conf.xml 示例

<?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>    <!-- settings -->    <settings>        <setting name="cacheEnabled" value="true"/>        <setting name="lazyLoadingEnabled" value="true"/>        <setting name="multipleResultSetsEnabled" value="true"/>        <setting name="useColumnLabel" value="true"/>        <setting name="useGeneratedKeys" value="false"/>        <setting name="autoMappingBehavior" value="PARTIAL"/>        <setting name="autoMappingUnknownColumnBehavior" value="WARNING"/>        <setting name="defaultExecutorType" value="SIMPLE"/>        <setting name="defaultStatementTimeout" value="100"/>        <setting name="defaultFetchSize" value="1000"/>        <setting name="safeRowBoundsEnabled" value="false"/>        <setting name="mapUnderscoreToCamelCase" value="false"/>        <setting name="localCacheScope" value="SESSION"/>        <setting name="jdbcTypeForNull" value="OTHER"/>        <setting name="logImpl" value="STDOUT_LOGGING"/>        <setting name="lazyLoadTriggerMethods" value="equals,clone,hashCode,toString"/>    </settings>    <!-- entity alias -->    <typeAliases>        <typeAlias alias="class_aliase" type="类的全限定名"/>        <typeAlias alias="class_aliase" type="类的全限定名"/>    </typeAliases>    <!-- development:开发模式     work:工作模式  配置数据源-->    <environments default="development">        <environment id="development">            <transactionManager type="JDBC" />            <dataSource type="POOLED">                <property name="driver" value="com.mysql.jdbc.Driver" />                <property name="url" value="jdbc:mysql://localhost:3306/数据库名字" />                <property name="username" value="root" />                <property name="password" value="****" />            </dataSource>        </environment>    </environments> 
    <!--  添加mapper文件  -->
 <mappers> <mapper resource="mapper.xml" /> <mapper resource="mapper.xml" /> </mappers></configuration>

6、mapper.xml　示例

<?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"><!-- Dao类中对应多种增删改查方法，只有方法名，没有方法体，具体实现在mapper.xml中，insert、update、select等中的id对应方法名 --><!-- 返回值为基本数据类型是用resultType,对象为resultMap，resultMap事先定义，多与entity对象对应，由数据库表的多个字段组成(一部分或全部）--><!-- resultMap中的type是某个类的全限定名，id是供后续使用(主要用于查找时返回)时的名字，id是主键。类中的property与数据表的column对应 --><mapper namespace="Dao类的全限定名"> <!-- property对应类属性，column对应数据库表的列名-->    <resultMap type="Dao类对应的entity类名" id="mapper中使用的resultMap名">        <id property="id" column="id"/>        <result property="name" column="name"/>        <result property="age" column="age"/>    </resultMap>    <insert id="" parameterType="">        <selectKey keyProperty="" resultType="" order="AFTER">            SELECT LAST_INSERT_ID()        </selectKey>        insert into android_task (            id,            name,            age            ) values (            ID,            #{name, jdbcType=BIGINT},            #{age}        )    </insert>    <select id="" parameterType="long" resultMap="">        select * from table_name where id=#{方法中通过@Param("")注释的参数}    </select>    <select id="" resultType="">        select * from table_name where toos_id=#{toos_id}    </select>    <update id="" parameterType="">        update table_name          <set>              <if test="id != null">id=#{id},</if>              <if test="name!= null">name=#{name},</if>              <if test="age!= null">age=#{age},</if>              <if test="data!= null">data=#{data}</if>          </set>        where id=#{id}    </update>    <update id="">        update table_name SET data=#{data} where id=#{id}    </update></mapper>

7、webapp结构

8、web.xml 示例

<?xml version="1.0" encoding="UTF-8"?><web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"         version="3.1">    <!--加载LOG4J-->    <context-param>        <param-name>log4jConfigLocation</param-name>        <param-value>/WEB-INF/classes/log4j.properties</param-value>    </context-param>    <context-param>        <param-name>log4jRefreshInterval</param-name>        <param-value>60000</param-value>    </context-param>    <listener>        <listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>    </listener>    <!-- 解码 -->    <filter>        <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>        <init-param>            <param-name>forceEncoding</param-name>            <param-value>true</param-value>        </init-param>    </filter>    <filter-mapping>        <filter-name>encodingFilter</filter-name>        <url-pattern>/*</url-pattern>    </filter-mapping>    <!-- 添加 支持 get, post, delete, put -->    <filter>        <filter-name>HiddenHttpMethodFilter</filter-name>        <filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class>    </filter>    <filter-mapping>        <filter-name>HiddenHttpMethodFilter</filter-name>        <servlet-name>monkeyDispatcher</servlet-name>    </filter-mapping>    <!-- 处理请求 -->    <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*:conf/spring_servlet.xml            </param-value>        </init-param>        <load-on-startup>1</load-on-startup>    </servlet>    <servlet-mapping>        <servlet-name>springmvc</servlet-name>        <url-pattern>/</url-pattern>    </servlet-mapping>    <welcome-file-list>        <welcome-file>index.jsp</welcome-file>    </welcome-file-list></web-app>

9、webapp下的mybatis_conf.xml

<?xml version='1.0' encoding='UTF-8'?><faces-config 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-facesconfig_2_0.xsd"              version="2.0"></faces-config>

10、web中的结构，文件内容同上，好像是自动生成放置的

11、pom.xml

<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>***</groupId>    <artifactId>...</artifactId>    <packaging>war</packaging>    <version>1.0-SNAPSHOT</version>    <name>... Maven Webapp</name>    <url>http://maven.apache.org</url>    <properties>         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>     </properties>    <dependencies>        <dependency>            <groupId>org.springframework</groupId>            <artifactId>spring-core</artifactId>            <version>4.3.7.RELEASE</version>        </dependency>        <dependency>            <groupId>org.springframework</groupId>            <artifactId>spring-context</artifactId>            <version>4.3.7.RELEASE</version>        </dependency>        <dependency>            <groupId>org.springframework</groupId>            <artifactId>spring-web</artifactId>            <version>4.3.7.RELEASE</version>        </dependency>        <dependency>            <groupId>org.springframework</groupId>            <artifactId>spring-webmvc</artifactId>            <version>4.3.7.RELEASE</version>        </dependency>        <dependency>            <groupId>org.hibernate</groupId>            <artifactId>hibernate-entitymanager</artifactId>            <version>5.2.10.Final</version>        </dependency>        <dependency>            <groupId>javax.servlet</groupId>            <artifactId>javax.servlet-api</artifactId>            <version>3.1.0</version>        </dependency>        <dependency>            <groupId>mysql</groupId>            <artifactId>mysql-connector-java</artifactId>            <version>5.1.42</version>        </dependency>        <dependency>            <groupId>org.json</groupId>            <artifactId>json</artifactId>            <version>20160810</version>        </dependency>        <dependency>            <groupId>com.google.code.gson</groupId>            <artifactId>gson</artifactId>            <version>2.8.0</version>        </dependency>        <dependency>            <groupId>com.fasterxml.jackson.core</groupId>            <artifactId>jackson-core</artifactId>            <version>2.8.8</version>        </dependency>        <dependency>            <groupId>com.fasterxml.jackson.core</groupId>            <artifactId>jackson-annotations</artifactId>            <version>2.8.7</version>        </dependency>        <dependency>            <groupId>com.fasterxml.jackson.core</groupId>            <artifactId>jackson-databind</artifactId>            <version>2.8.8</version>        </dependency>        <dependency>            <groupId>org.mybatis</groupId>            <artifactId>mybatis-spring</artifactId>            <version>1.3.1</version>        </dependency>        <dependency>            <groupId>org.mybatis</groupId>            <artifactId>mybatis</artifactId>            <version>3.4.4</version>        </dependency>        <dependency>            <groupId>junit</groupId>            <artifactId>junit</artifactId>            <version>4.12</version>        </dependency>        <!--<dependency>-->            <!--<groupId>com.baidu.epqa</groupId>-->            <!--<artifactId>monkey_dispatcher</artifactId>-->            <!--<version>1.0-SNAPSHOT</version>-->        <!--</dependency>-->        <!--<dependency>-->            <!--<groupId>org.mybatis</groupId>-->            <!--<artifactId>mybatis-parent</artifactId>-->            <!--<version>28</version>-->        <!--</dependency>-->        <dependency>            <groupId>org.slf4j</groupId>            <artifactId>slf4j-log4j12</artifactId>            <version>1.7.25</version>        </dependency>        <dependency>            <groupId>log4j</groupId>            <artifactId>log4j</artifactId>            <version>1.2.12</version>        </dependency>        <dependency>            <groupId>org.apache.httpcomponents</groupId>            <artifactId>httpclient</artifactId>            <version>4.5.3</version>        </dependency>        <!-- 发送邮件 -->        <!-- https://mvnrepository.com/artifact/org.springframework/spring-context-support -->        <dependency>            <groupId>org.springframework</groupId>            <artifactId>spring-context-support</artifactId>            <version>3.2.0.RELEASE</version>        </dependency>        <!-- https://mvnrepository.com/artifact/javax.mail/mail -->        <dependency>            <groupId>javax.mail</groupId>            <artifactId>mail</artifactId>            <version>1.4</version>        </dependency>        <!-- https://mvnrepository.com/artifact/org.slf4j/slf4j-api -->        <dependency>            <groupId>org.slf4j</groupId>            <artifactId>slf4j-api</artifactId>            <version>1.7.25</version>        </dependency>        <!-- https://mvnrepository.com/artifact/org.slf4j/slf4j-simple -->        <dependency>            <groupId>org.slf4j</groupId>            <artifactId>slf4j-simple</artifactId>            <version>1.7.25</version>        </dependency>    </dependencies>    <build>        <finalName>...</finalName>        <plugins>            <plugin>                <groupId>org.apache.maven.plugins</groupId>                <artifactId>maven-compiler-plugin</artifactId>                <version>2.5.1</version>                <configuration>                    <source>1.8</source>                    <target>1.8</target>                    <compilerArgument>-Xlint:all</compilerArgument>                    <showWarnings>true</showWarnings>                    <showDeprecation>true</showDeprecation>                    <encoding>utf8</encoding>                </configuration>            </plugin>            <plugin>                <groupId>org.apache.maven.plugins</groupId>                <artifactId>maven-war-plugin</artifactId>                <version>2.3</version>                <configuration>                    <warName>${project.artifactId}</warName>                    <webResources>                        <resource>                            <directory>src/main/java</directory>                            <includes>                                <include>**/*.xml</include>                            </includes>                            <targetPath>WEB-INF/classes</targetPath>                        </resource>                    </webResources>                    <!--<encoding>utf8</encoding>-->                </configuration>            </plugin>            <plugin>                <groupId>org.apache.tomcat.maven</groupId>                <artifactId>tomcat7-maven-plugin</artifactId>                <version>2.1</version>                <configuration>                    <port>80</port>                    <path>/</path>                </configuration>            </plugin>        </plugins>    </build></project>