猿实战02——SpringMVC+Spring+mybatis+maven+多模块框架搭建

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猿实战是一个原创系列文章，通过实战的方式，采用前后端分离的技术结合SpringMVC Spring Mybatis,手把手教你撸一个完整的电商系统，跟着教程走下来，变身猿人找到工作不是问题。想要一起实战吗？，关注公主号猿人工厂，获取基础代码，手把手带你开发属于自己的电商系统。 从今天开始，我们将进入猿实战的阶段，实现一个前后端分离的电商系统，没有开发框架怎么行？今天是第一个系列，猿人君将带你搭建后端开发框架。

创建应用父模块

父模块负责控制整个应用的结构,因为pzmall-basic作为父项目的存在，无需编写代码,记得在创建完成后，删除项目下的src目录。

创建子模块

考虑到我们需要构建一个B2C(兼容商家端的应用)我们的应用按照代码职责的划分，我们的应用暂时涉及到一下几个模块。

pzmall-basic-common:负责编写项目公用的一些内容，比如工具类。

pzmall-basic-domain:负责项目涉及的实体内容编写。

pzmall-basic-dao:负责数据持久层的内容编写。

pzmall-basic-service：负责业务逻辑层的内容编写。

pzmall-basic-search-util：负责项目搜索引擎工具相关的内容编写。

pzmall-basic-web:负责项目网站端业务内容编写。

pzmall-basic-manweb:负责项目运营管理端业务内容编写。

接下来我们一起来创建子项目pzmall-basic-common。

接下来，以葫芦画瓢，建立pzmall-basic-domain、pzmall-basic-dao、pzmall-basic-service、pzmall-basic-search-util几个子模块，最后得到如下结果。

由于pzmall-basic-web和pzmall-basic-manweb属于web应用，在创建时有所区别，在选择maven项目类型时记得选择正确的archetype,org.apache.maven.archetypes:maven-archetype-webapp.

完成后，并在模块的src/main目录下建立java和resources两个目录。

最后项目的整体结果效果如下，为了测试下效果，编译下项目。

调整项目依赖

就项目模块之间的依赖关系而言，pzmall-basic-common和pzmall-basic-serch-util由于编写的是工具类，相对独立，不依赖于其它模块。pzmall-basic-domain、pzmall-basic-dao、pzmall-basic-service、三者的依赖是存在关联关系的，pzmall-basic-service依赖pzmall-basic-dao，pzmall-basic-dao依赖pzmall-basic-domain。而之前提及的pzmall-basic-common和 pzmall-basic-serch-util更多的会在service层被使用。所以，pzmall-basic-service会依赖pzmall-basic-common和pzmall-basic-serch-util。注意哈，pzmall-basic-domain要尽量保持干净，不要和工具类扯上什么关系，否则对今后的架构方面的扩展，是不友好的。而pzmall-basic-web和pzmall-basic-manweb作为项目最终要部署的war包，依赖pzmall-basic-service就可以了。

接下来我们调整引入各个层面所需要的依赖，搭建我们项目开发所需要的框架。

修改父项目pzmall-basic下pom.xml内容为：

    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0http://maven.apache.org/xsd/maven-4.0.0.xsd">

4.0.0

<groupid>com.pz</groupid>

pzmall-basic

<packaging>pom</packaging><version>1.0-SNAPSHOT</version><!-- 集中定义依赖版本号 --><properties><junit.version>4.12</junit.version><spring.version>4.2.4.RELEASE</spring.version><servlet-api.version>2.5</servlet-api.version><mybatis.version>3.2.8</mybatis.version><mybatis.spring.version>1.2.2</mybatis.spring.version><mysql.version>5.1.32</mysql.version><druid.version>1.0.9</druid.version><commons-fileupload.version>1.3.1</commons-fileupload.version><freemarker.version>2.3.23</freemarker.version><security.version>3.2.3.RELEASE</security.version></properties><modules><module>pzmall-basic-common</module><module>pzmall-basic-domain</module><module>pzmall-basic-dao</module><module>pzmall-basic-service</module><module>pzmall-basic-search-util</module><module>pzmall-basic-web</module><module>pzmall-basic-manweb</module></modules><dependencymanagement><dependencies><!-- Spring --><dependency><groupid>org.springframework</groupid><artifactid>spring-context</artifactid><version>${spring.version}</version></dependency><dependency><groupid>org.springframework</groupid><artifactid>spring-beans</artifactid><version>${spring.version}</version></dependency><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.springframework</groupid><artifactid>spring-aspects</artifactid><version>${spring.version}</version></dependency><dependency><groupid>org.springframework</groupid><artifactid>spring-jms</artifactid><version>${spring.version}</version></dependency><dependency><groupid>org.springframework</groupid><artifactid>spring-context-support</artifactid><version>${spring.version}</version></dependency><dependency><groupid>org.springframework</groupid><artifactid>spring-test</artifactid><version>${spring.version}</version></dependency><dependency><groupid>junit</groupid><artifactid>junit</artifactid><version>4.9</version></dependency><dependency><groupid>com.alibaba</groupid><artifactid>fastjson</artifactid><version>1.2.29</version></dependency><dependency><groupid>javassist</groupid><artifactid>javassist</artifactid><version>3.11.0.GA</version></dependency><dependency><groupid>commons-codec</groupid><artifactid>commons-codec</artifactid><version>1.10</version></dependency><dependency><groupid>javax.servlet</groupid><artifactid>servlet-api</artifactid><version>${servlet-api.version}</version><scope>provided</scope></dependency><!-- Mybatis --><dependency><groupid>org.mybatis</groupid><artifactid>mybatis</artifactid><version>${mybatis.version}</version></dependency><dependency><groupid>org.mybatis</groupid><artifactid>mybatis-spring</artifactid><version>${mybatis.spring.version}</version></dependency><!-- MySql --><dependency><groupid>mysql</groupid><artifactid>mysql-connector-java</artifactid><version>${mysql.version}</version></dependency><!-- 连接池 --><dependency><groupid>com.alibaba</groupid><artifactid>druid</artifactid><version>${druid.version}</version></dependency><!-- 文件上传组件 --><dependency><groupid>commons-fileupload</groupid><artifactid>commons-fileupload</artifactid><version>${commons-fileupload.version}</version></dependency><dependency><groupid>org.freemarker</groupid><artifactid>freemarker</artifactid><version>${freemarker.version}</version></dependency><!-- 身份验证 --><dependency><groupid>org.springframework.security</groupid><artifactid>spring-security-web</artifactid><version>4.1.0.RELEASE</version></dependency><dependency><groupid>org.springframework.security</groupid><artifactid>spring-security-config</artifactid><version>4.1.0.RELEASE</version></dependency><dependency><groupid>com.github.penggle</groupid><artifactid>kaptcha</artifactid><version>2.3.2</version><exclusions><exclusion><groupid>javax.servlet</groupid><artifactid>javax.servlet-api</artifactid></exclusion></exclusions></dependency><dependency><groupid>org.springframework.security</groupid><artifactid>spring-security-cas</artifactid><version>4.1.0.RELEASE</version></dependency><dependency><groupid>org.jasig.cas.client</groupid><artifactid>cas-client-core</artifactid><version>3.3.3</version><!-- 排除log4j包冲突 --><exclusions><exclusion><groupid>org.slf4j</groupid><artifactid>log4j-over-slf4j</artifactid></exclusion></exclusions></dependency><dependency><groupid>org.apache.httpcomponents</groupid><artifactid>httpcore</artifactid><version>4.4.4</version></dependency><dependency><groupid>org.apache.httpcomponents</groupid><artifactid>httpclient</artifactid><version>4.5.3</version></dependency><dependency><groupid>dom4j</groupid><artifactid>dom4j</artifactid><version>1.6.1</version></dependency><dependency><groupid>xml-apis</groupid><artifactid>xml-apis</artifactid><version>1.4.01</version></dependency></dependencies></dependencymanagement>

修改pzmall-basic-common下pom.xml内容为：

    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<parent><artifactid>pzmall-basic</artifactid><groupid>com.pz</groupid><version>1.0-SNAPSHOT</version></parent>

4.0.0

<artifactid>pzmall-basic-common</artifactid>

pzmall-basic-common

<dependencies><dependency><groupid>com.pz</groupid><artifactid>pzmall-basic-domain</artifactid><version>1.0-SNAPSHOT</version></dependency><dependency><groupid>commons-fileupload</groupid><artifactid>commons-fileupload</artifactid></dependency><!-- 缓存 --><dependency><groupid>redis.clients</groupid><artifactid>jedis</artifactid></dependency><dependency><groupid>org.springframework.data</groupid><artifactid>spring-data-redis</artifactid></dependency><dependency><groupid>javax.servlet</groupid><artifactid>servlet-api</artifactid><scope>provided</scope></dependency><dependency><groupid>org.apache.httpcomponents</groupid><artifactid>httpclient</artifactid></dependency></dependencies>

  修改pzmall-basic-domain下pom.xml内容为：

<?xmlversion ="1.0" encoding="UTF-8"?><projectxmlns xsi:schemalocation="http://maven.apache.org/POM/4.0.0http://maven.apache.org/xsd/maven-4.0.0.xsd"><parent><artifactid>pzmall-basic</artifactid><groupid>com.pz</groupid><version>1.0-SNAPSHOT</version></parent><modelversion>4.0.0</modelversion><artifactid>pzmall-basic-domain</artifactid><name>pzmall-basic-domain</name><!-- FIXME change it to the project'swebsite --><url>http://www.example.com</url><properties><project.build.sourceencoding>UTF-8</project.build.sourceencoding></properties><dependencies><dependency><groupid>org.apache.commons</groupid><artifactid>commons-lang3</artifactid></dependency></dependencies></projectxmlns>

修改pzmall-basic-dao下pom.xml内容为：

<?xmlversion ="1.0" encoding="UTF-8"?><projectxmlns xsi:schemalocation="http://maven.apache.org/POM/4.0.0http://maven.apache.org/xsd/maven-4.0.0.xsd"><parent><artifactid>pzmall-basic</artifactid><groupid>com.pz</groupid><version>1.0-SNAPSHOT</version></parent><modelversion>4.0.0</modelversion><artifactid>pzmall-basic-dao</artifactid><name>pzmall-basic-dao</name><!-- FIXME change it to the project'swebsite --><url>http://www.example.com</url><dependencies><!-- Mybatis --><dependency><groupid>org.mybatis</groupid><artifactid>mybatis</artifactid></dependency><dependency><groupid>org.mybatis</groupid><artifactid>mybatis-spring</artifactid></dependency><!-- MySql --><dependency><groupid>mysql</groupid><artifactid>mysql-connector-java</artifactid></dependency><!-- 连接池 --><dependency><groupid>com.alibaba</groupid><artifactid>druid</artifactid></dependency><dependency><groupid>com.pz</groupid><artifactid>pzmall-basic-domain</artifactid><version>1.0-SNAPSHOT</version></dependency></dependencies><build><resources><resource><directory>src/main/resources</directory><filtering>true</filtering></resource></resources></build></projectxmlns>

修改pzmall-basic-service下pom.xml内容为：

<?xmlversion ="1.0" encoding="UTF-8"?><projectxmlns xsi:schemalocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"><parent><artifactid>pzmall-basic</artifactid><groupid>com.pz</groupid><version>1.0-SNAPSHOT</version></parent><modelversion>4.0.0</modelversion><artifactid>pzmall-basic-service</artifactid><version>1.0-SNAPSHOT</version><name>pzmall-basic-service</name><!-- FIXME change it to the project'swebsite --><url>http://www.example.com</url><dependencies><!-- Spring --><dependency><groupid>org.springframework</groupid><artifactid>spring-context</artifactid></dependency><dependency><groupid>org.springframework</groupid><artifactid>spring-beans</artifactid></dependency><dependency><groupid>org.springframework</groupid><artifactid>spring-webmvc</artifactid></dependency><dependency><groupid>org.springframework</groupid><artifactid>spring-jdbc</artifactid></dependency><dependency><groupid>org.springframework</groupid><artifactid>spring-aspects</artifactid></dependency><dependency><groupid>org.springframework</groupid><artifactid>spring-jms</artifactid></dependency><dependency><groupid>org.springframework</groupid><artifactid>spring-context-support</artifactid></dependency><dependency><groupid>org.springframework</groupid><artifactid>spring-jms</artifactid></dependency><dependency><groupid>org.springframework</groupid><artifactid>spring-test</artifactid></dependency><dependency><groupid>com.alibaba</groupid><artifactid>fastjson</artifactid></dependency><dependency><groupid>javassist</groupid><artifactid>javassist</artifactid></dependency><dependency><groupid>commons-codec</groupid><artifactid>commons-codec</artifactid></dependency><dependency><groupid>javax.servlet</groupid><artifactid>servlet-api</artifactid><scope>provided</scope></dependency><dependency><groupid>org.freemarker</groupid><artifactid>freemarker</artifactid></dependency><dependency><groupid>com.pz</groupid><artifactid>pzmall-basic-dao</artifactid><version>1.0-SNAPSHOT</version></dependency><dependency><groupid>com.pz</groupid><artifactid>pzmall-basic-common</artifactid><version>1.0-SNAPSHOT</version></dependency></dependencies></projectxmlns>

修改pzmall-basic-search-util下pom.xml内容为：

<?xmlversion ="1.0" encoding="UTF-8"?><projectxmlns xsi:schemalocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"><parent><artifactid>pzmall-basic</artifactid><groupid>com.pz</groupid><version>1.0-SNAPSHOT</version></parent><modelversion>4.0.0</modelversion><artifactid>pzmall-basic-search-util</artifactid><version>1.0-SNAPSHOT</version><name>pzmall-basic-search-util</name><!-- FIXME change it to the project'swebsite --><url>http://www.example.com</url><dependencies><dependency><groupid>com.pz</groupid><artifactid>pzmall-basic-domain</artifactid><version>1.0-SNAPSHOT</version></dependency><dependency><groupid>com.alibaba</groupid><artifactid>fastjson</artifactid></dependency></dependencies></projectxmlns>

修改pzmall-basic -web下pom.xml内容为：

<?xmlversion ="1.0" encoding="UTF-8"?><projectxmlns xsi:schemalocation="http://maven.apache.org/POM/4.0.0http://maven.apache.org/xsd/maven-4.0.0.xsd"><parent><artifactid>pzmall-basic</artifactid><groupid>com.pz</groupid><version>1.0-SNAPSHOT</version></parent><modelversion>4.0.0</modelversion><artifactid>pzmall-basic-web</artifactid><version>1.0-SNAPSHOT</version><packaging>war</packaging><name>pzmall-basic-web MavenWebapp</name><!-- FIXME change it to the project'swebsite --><url>http://www.example.com</url><dependencies><!-- Spring --><dependency><groupid>org.springframework</groupid><artifactid>spring-context</artifactid></dependency><dependency><groupid>org.springframework</groupid><artifactid>spring-beans</artifactid></dependency><dependency><groupid>org.springframework</groupid><artifactid>spring-webmvc</artifactid></dependency><dependency><groupid>org.springframework</groupid><artifactid>spring-jdbc</artifactid></dependency><dependency><groupid>org.springframework</groupid><artifactid>spring-aspects</artifactid></dependency><dependency><groupid>org.springframework</groupid><artifactid>spring-jms</artifactid></dependency><dependency><groupid>org.springframework</groupid><artifactid>spring-context-support</artifactid></dependency><dependency><groupid>org.springframework</groupid><artifactid>spring-test</artifactid></dependency><dependency><groupid>javassist</groupid><artifactid>javassist</artifactid></dependency><dependency><groupid>commons-codec</groupid><artifactid>commons-codec</artifactid></dependency><dependency><groupid>javax.servlet</groupid><artifactid>servlet-api</artifactid><scope>provided</scope></dependency><!-- 身份认证的依赖 --><dependency><groupid>org.springframework.security</groupid><artifactid>spring-security-web</artifactid></dependency><dependency><groupid>org.springframework.security</groupid><artifactid>spring-security-config</artifactid></dependency><dependency><groupid>com.pz</groupid><artifactid>pzmall-basic-service</artifactid><version>1.0-SNAPSHOT</version></dependency></dependencies><build><plugins><plugin><groupid>org.apache.tomcat.maven</groupid><artifactid>tomcat7-maven-plugin</artifactid><version>2.2</version><configuration><!-- 指定端口 --><port>9203</port><!-- 请求路径 --><path>/</path></configuration></plugin></plugins></build></projectxmlns>

修改pzmall-basic -manweb下pom.xml内容为：

<?xmlversion ="1.0" encoding="UTF-8"?><projectxmlns xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemalocation="http://maven.apache.org/POM/4.0.0http://maven.apache.org/xsd/maven-4.0.0.xsd"><parent><artifactid>pzmall-basic</artifactid><groupid>com.pz</groupid><version>1.0-SNAPSHOT</version></parent><modelversion>4.0.0</modelversion><artifactid>pzmall-basic-manweb</artifactid><version>1.0-SNAPSHOT</version><packaging>war</packaging><name>pzmall-basic-manweb MavenWebapp</name><!-- FIXME change it to the project'swebsite --><url>http://www.example.com</url><dependencies><!-- Spring --><dependency><groupid>org.springframework</groupid><artifactid>spring-context</artifactid></dependency><dependency><groupid>org.springframework</groupid><artifactid>spring-beans</artifactid></dependency><dependency><groupid>org.springframework</groupid><artifactid>spring-webmvc</artifactid></dependency><dependency><groupid>org.springframework</groupid><artifactid>spring-jdbc</artifactid></dependency><dependency><groupid>org.springframework</groupid><artifactid>spring-aspects</artifactid></dependency><dependency><groupid>org.springframework</groupid><artifactid>spring-jms</artifactid></dependency><dependency><groupid>org.springframework</groupid><artifactid>spring-context-support</artifactid></dependency><dependency><groupid>org.springframework</groupid><artifactid>spring-test</artifactid></dependency><dependency><groupid>javassist</groupid><artifactid>javassist</artifactid></dependency><dependency><groupid>commons-codec</groupid><artifactid>commons-codec</artifactid></dependency><dependency><groupid>javax.servlet</groupid><artifactid>servlet-api</artifactid><scope>provided</scope></dependency><!-- 身份认证的依赖 --><dependency><groupid>org.springframework.security</groupid><artifactid>spring-security-web</artifactid></dependency><dependency><groupid>org.springframework.security</groupid><artifactid>spring-security-config</artifactid></dependency><dependency><groupid>com.pz</groupid><artifactid>pzmall-basic-service</artifactid><version>1.0-SNAPSHOT</version></dependency></dependencies><build><plugins><plugin><groupid>org.apache.tomcat.maven</groupid><artifactid>tomcat7-maven-plugin</artifactid><version>2.2</version><configuration><!-- 指定端口 --><port>9201</port><!-- 请求路径 --><path>/</path></configuration></plugin></plugins></build></projectxmlns>

搭建开发框架

1.在pzmall-basic-dao模块的src/main目录下建立resources/mybatis目录,并在mybaits目录下建立SqlMapConfig.xml文件以及mapper目录。

SqlMapConfig.xml下用于配置mybatis全局相关的一些属性，以及加载哪些mapper配置文件，mapper目录下未来将按模块存放相干的mapper文件。

2.在pzmall-basic-manweb目录的resources目录下分别建立spring和config两个目录。并在resources目录下建立applicationContext.xml文件。如下图所示。

3.整合mybatis，在spring目录中建立文件，spring-dao.xml并输入如下内容。

<?xmlversion ="1.0" encoding="UTF-8"?><beansxmlns xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemalocation="http://www.springframework.org/schema/beanshttp://www.springframework.org/schema/beans/spring-beans-4.2.xsd
       http://www.springframework.org/schema/contexthttp://www.springframework.org/schema/context/spring-context.xsd
       http://www.springframework.org/schema/aophttp://www.springframework.org/schema/aop/spring-aop.xsd
       http://www.springframework.org/schema/txhttp://www.springframework.org/schema/tx/spring-tx.xsd
       http://www.springframework.org/schema/utilhttp://www.springframework.org/schema/util/spring-util.xsd" default-autowire="byName"><!-- 数据库连接池 --><bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" destroy-method="close"><property name="url" value="${jdbc.url}"></property><propertyname value="${jdbc.username}"></propertyname><propertyname value="${jdbc.password}"></propertyname><propertyname value="${jdbc.driver}"></propertyname><propertyname value="10"></propertyname><propertyname value="5"></propertyname></bean><!-- 让spring管理sqlsessionfactory 使用mybatis和spring整合包中的 --><beanid><!-- 数据库连接池 --><propertyname ref="dataSource"></propertyname><!-- 加载mybatis的全局配置文件 --><propertyname></propertyname><beanclass><property name="sqlSessionFactoryBeanName" value="mybatisSqlSessionFactory"></property><propertyname value="com.pz.basic.mall.dao"></propertyname></beanclass></beanid></beansxmlns>

4.配置事务相关的内容，在spring目录中建立文件，spring-tx.xml并输入如下内容。​​​​​​​

<?xmlversion ="1.0" encoding="UTF-8"?><beansxmlns 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:tx="http://www.springframework.org/schema/tx" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemalocation="http://www.springframework.org/schema/beanshttp://www.springframework.org/schema/beans/spring-beans.xsd
       http://www.springframework.org/schema/mvchttp://www.springframework.org/schema/mvc/spring-mvc.xsd
              http://www.springframework.org/schema/txhttp://www.springframework.org/schema/tx/spring-tx.xsd
       http://www.springframework.org/schema/contexthttp://www.springframework.org/schema/context/spring-context.xsd"><!-- 事务管理器  --><bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"><propertyname ref="dataSource"></propertyname></bean><!-- 开启事务控制的注解支持 --><annotation-driventransaction-manager></annotation-driventransaction-manager></beansxmlns>

5.配置SpringMVC相关内容，先在spring目录中建立文件spring-service.xml备用，然后再建立一个springmvc.xml文件，并在文件中输入如下内容。​​​​​​​

<?xmlversion ="1.0" encoding="UTF-8"?><beansxmlns 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/beanshttp://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/mvchttp://www.springframework.org/schema/mvc/spring-mvc.xsd
       http://www.springframework.org/schema/contexthttp://www.springframework.org/schema/context/spring-context.xsd" default-autowire="byName"><annotation-driven><message-converters register-defaults="true"><beanclass><propertyname><list><value>text/html;charset=UTF-8</value><value>application/json</value><value>application/xml;charset=UTF-8</value></list><propertyname><list><!-- 默认的意思就是不配置这个属性，配置了就不是默认了 --><!-- 是否输出值为null的字段，默认是false --><value>WriteMapNullValue</value><value>WriteNullNumberAsZero</value><value>WriteNullListAsEmpty</value><value>WriteNullStringAsEmpty</value><value>WriteNullBooleanAsFalse</value><value>WriteDateUseDateFormat</value></list></propertyname></propertyname></beanclass></message-converters></annotation-driven><!-- 配置多媒体解析器 --><bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"><propertyname value="UTF-8"><!-- 设定文件上传的最大值5MB，5*1024*1024 --><propertyname value="5242880"></propertyname></propertyname></bean><!-- 跨域问题解决--><interceptors><interceptor><mappingpath></mappingpath><beanclass><propertyname><list><value>/</value></list></propertyname></beanclass></interceptor></interceptors></beansxmlns>

6.由于我们打算使用前后端分离的方式来开发项目，需要解决跨域问题，我们使用了拦截器的方式来处理这个问题，也在springMVC中做了相应的配置。在pzmall-basic-manweb模块中编写代码。​​​​​​​

package com.pz.basic.mall.interceptor;
 
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;
 
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.List;
 
/**
 * 处理跨域请求
 */
public classCommonInterceptor implements HandlerInterceptor {
 
    private List<string> excludedUrls;
 
    public List<string> getExcludedUrls(){
        return excludedUrls;
    }
 
    public voidsetExcludedUrls(List<string> excludedUrls) {
        this.excludedUrls = excludedUrls;
    }
 
    /**
     *
     * 在业务处理器处理请求之前被调用如果返回false
     * 从当前的拦截器往回执行所有拦截器的afterCompletion(),
     * 再退出拦截器链, 如果返回true 执行下一个拦截器,
     * 直到所有的拦截器都执行完毕再执行被拦截的Controller
     * 然后进入拦截器链,
     * 从最后一个拦截器往回执行所有的postHandle()
     * 接着再从最后一个拦截器往回执行所有的afterCompletion()
     *
     * @param request
     *
     * @param response
     */
    public boolean preHandle(HttpServletRequestrequest, HttpServletResponse response,
                             Object handler)throws Exception {
 
       response.setHeader("Access-Control-Allow-Origin","*");
       response.setHeader("Access-Control-Allow-Methods", "POST,GET, PUT, OPTIONS, DELETE, PATCH");
        response.setHeader("Access-Control-Max-Age","3600");
       response.setHeader("Access-Control-Allow-Headers","X-Token, Origin, X-Requested-With, Content-Type, Accept");
       response.setHeader("Access-Control-Allow-Credentials","true");
        response.setHeader("XDomainRequestAllowed","1");
        return true;
    }
 
    // 在业务处理器处理请求执行完成后,生成视图之前执行的动作
    public void postHandle(HttpServletRequestrequest, HttpServletResponse response, Object handler,
                           ModelAndViewmodelAndView) throws Exception {
 
    }
 
    /**
     *
     * 在DispatcherServlet完全处理完请求后被调用
     * 当有拦截器抛出异常时,
     * 会从当前拦截器往回执行所有的拦截器的afterCompletion()
     *
     * @param request
     *
     * @param response
     *
     * @param handler
     *
     */
    public voidafterCompletion(HttpServletRequest request, HttpServletResponse response,
                                Object handler,Exception ex) throws Exception {
 
    }
}</string></string></string>

7.修改pzmall-basic-manweb模块中的resources/config目录下增加db.properties文件，加入数据库相关的配置。​​​​​​​

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://127.0.0.1:3306/pz_mall_basic?useUnicode=true&characterEncoding=UTF-8
jdbc.username=root
jdbc.password=123456

8.在resources目录下新增log4j.properties文件，增加日志相关配置。​​​​​​​

log4j.rootLogger=trace,console
logging.level.com.pz.mall.dao=DEBUG
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=[%-5p][%d{yyyy-MM-dd HH:mm:ss}]%m%n
 
log4j.logger.com.ibatis=DEBUG
log4j.logger.com.ibatis.common.jdbc.SimpleDataSource=DEBUG
log4j.logger.com.ibatis.common.jdbc.ScriptRunner=DEBUG
log4j.logger.com.ibatis.sqlmap.engine.impl.SqlMapClientDelegate=DEBUG
log4j.logger.Java.sql.Connection=DEBUG
log4j.logger.java.sql.Statement=DEBUG
log4j.logger.java.sql.PreparedStatement=DEBUG

9.修改pzmall-basic-manweb模块中的web.xml文件，增加应用启动相关配置：​​​​​​​

<?xmlversion ="1.0" encoding="UTF-8"?><xsi xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemalocation="http://java.sun.com/xml/ns/javaeehttp://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" version="2.5"><!-- 解决post乱码 --><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><init-param><param-name>forceEncoding</param-name><param-value>true</param-value></init-param></filter><filter-mapping><filter-name>CharacterEncodingFilter</filter-name><url-pattern>/*</url-pattern></filter-mapping><servlet><servlet-name>springmvc</servlet-name><servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class><!-- 指定加载的配置文件，通过参数contextConfigLocation加载 --><init-param><param-name>contextConfigLocation</param-name><param-value>classpath:applicationContext.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><listener><listener-class>org.springframework.web.context.ContextLoaderListener</listener-class></listener><context-param><param-name>contextConfigLocation</param-name><param-value>classpath:applicationContext.xml</param-value></context-param></xsi>

到此为止，我们项目的开发框架搭建完毕。
  如学习过程中遇到疑难杂症，自己实在搞不定，可以加我的微信，帮你解决。

今天关于《猿实战02——SpringMVC+Spring+mybatis+maven+多模块框架搭建》的内容就介绍到这里了，是不是学起来一目了然！想要了解更多关于mysql的内容请关注golang学习网公众号！