使用maven和springMVC项目的结构

最新推荐文章于 2025-03-22 00:35:52 发布

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最新推荐文章于 2025-03-22 00:35:52 发布

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分类专栏： java_web java，spring

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本文详细介绍了使用maven构建的springMVC项目结构，包括java包中的业务逻辑、DAO和服务实现，resources目录下的配置文件如spring_servlet.xml、mybatis_conf.xml和mapper.xml，以及webapp目录下的web.xml、mybatis_conf.xml和pom.xml的配置和作用。

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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>