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基于Maven的Spring + Spring MVC + Mybatis的环境搭建

基于Maven的Spring + Spring MVC + Mybatis的环境搭建项目开发，先将环境先搭建起来。上次做了一个Spring + Spring MVC + Mybatis + Log4J + JUnit Test的环境搭建，这次也差不多，不过就是基于了Maven，同时也添加了事务管理。

首先，可以去了解一下maven，个人觉得这个东西就是JAR包管理方便，不用自己一个个去写，直接添加dependence就行了，不过有时候要注意哟，有可能重复的包含了某个JAR包，会报冲突的哟，亲！因为只有一个POM文件里指定JAR包，所以整个项目都很小的，一般就几MB，只有你在将该项目打成WAR包的时候，maven会自动的把三方JAR包放进项目，然后你就可以去部署到Tomcat的webapp下面了，放进去，重启Tomcat就OK。

1.开始搭建我的环境吧。首先，IDE我用的是eclipse的JEE版本。要保证装上了Maven哟，可以使用eclipse的Install New Software， URL地址是http://m2eclipse.sonatype.org/sites/m2e/，然后一步步走下去，安装好了过了会重启一次。给一个忠告哟，安装好了maven后，不要使用IDE里面的了，而是去官方下载一个，解压，然后让IDE的Maven指向你下载安装的，如图：

基于Maven的Spring + Spring MVC + Mybatis的环境搭建

2.maven安装成功了，我们用Maven创建一个新的WEB项目。File—> New—> Other—>Maven Project. 选默认，下一步。在Select an Archetype里面种找到如下图所示

3.然后next，输入groupId:net.yuanmomo；artifactId:Test，然后finish，稍微等待一下，就创建好了。下面的是创建好了的一个初始的项目：

4.但是这个并不是默认的maven项目的标准结构.我们需要进行一些改动. (1).在项目下创建一个Source Folder. Folder Name:src/main/java 如下图所示:

(当然,还可以添加用于junit测试的src/test/java和src/test/resources 不过在此就不添加了.) (2).在src/main/java中创建3个包(maven标准推荐是3层包结构) (3).如果装的JDK是1.6的,更改JRE System Libary为1.6版本的. (4).就src/main/webapp文件夹看做一个的WebRoot,然后创建js,css,jsp等文件夹。这样.一个标准的maven web项目创建成功.

5.大家一看上面的项目结构，很熟悉吧。maven的项目结构路径有点讨厌，有点让人很烦。maven打WAR包的时候提取的东西是src/main/webapp下面的文件，然后打成一个WAR的WEB项目就可以部署了，但是，但是，我们在开发的时候，在使用eclipse里面的Tomcat调试的时候，tomcat却不是把src/main/webapp下面的文件部署到服务器。此时，如果你打开Server,然后add and remove，你在左边是找不到Test项目的，如下：

原因是因为Tomcat默认回去Test项目的路径下面去找WebRoot—>WEB-INF–>web.xml(WebRoot文件夹的名字可以不一样，可以使其它的，但是WEB-INF–>web.xml这两个名字不能变)，但是当前就找不到这几个目录。这个时候有两个解决办法：

(5.1). 在Test项目的路径下面，按照路径规则创建WebRoot，WEB-INF等文件夹，然后把上面的web.xml拷贝到新建的WEB-INF中去。放心吧，我上一个项目就是这样做的，不过这种方式打死都不可取的。你修改JSP的时候改的是下面的，maven打包的时候用的上面的。你还得拷贝过来，拷过去，麻烦，如果再有svn管理，累死你，晕死你，我们经常是调试编写的时候再下面做，最后提交的时候还得一个个拷贝上去，还出很多问题。所以建议采用第二种方式。 (5.2).转换该项目: (1)在Test工程名上右键–>Properties–>Project Facets–>Convet to faceted form,

(2)勾上Dynamic Web Module,选择2.4版本。同时点击下方的further configuration available

(3)将默认的WebContent改成src/main/webapp

(4)一路点OK..此时在server视图中的tomcat server上点右键–>Add and Remove，就能看到该项目于，然后部署啦。

至此，我们已经创建好了一个合格的基于Maven的项目，也可以在Tomcat中部署。接下来，我们开始整合我们的J2EE框架。

6.先给出数据库的创建脚本，方便测试搭建是否成功。

SET SQL_MODE="NO_AUTO_VALUE_ON_ZERO";
— 
— 数据库: `timesheet` 
— 
CREATE DATABASE `timesheet` DEFAULT CHARACTER SET utf8 COLLATE utf8_bin; 
USE `timesheet`;
— ——————————————————–
— 
— 表的结构 `testtable` 
—
CREATE TABLE IF NOT EXISTS `testtable` ( 
  `id` int(10) unsigned NOT NULL AUTO_INCREMENT, 
  `name` varchar(50) COLLATE utf8_bin DEFAULT NULL, 
  `date` timestamp NULL DEFAULT NULL, 
  PRIMARY KEY (`id`) 
) ENGINE=InnoDB  DEFAULT CHARSET=utf8 COLLATE=utf8_bin AUTO_INCREMENT=1 ;
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7.在pom文件中添加必要的jar包的dependence，可以从两个地方查询：

mvnrepository.com/ search.maven.org/ 添加后的pom文件如下：

<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>net.yuanmomo</groupId>     <artifactId>Test</artifactId>     <packaging>war</packaging>     <version>0.0.1-SNAPSHOT</version>     <name>Test Maven Webapp</name>     <url>http://maven.apache.org</url>    <!– 设置 Spring 的版本 –>     <properties>         <org.springframework.version>3.0.0.RELEASE</org.springframework.version>     </properties>    <dependencies>         <!– 此处开始就是Spring 所有的jar了，spring3.0的jar包拆分了，所以很多 –>         <!– Core utilities used by other modules. Define this if you use Spring             Utility APIs (org.springframework.core.*/org.springframework.util.*) –>         <dependency>             <groupId>org.springframework</groupId>             <artifactId>spring-core</artifactId>             <version>${org.springframework.version}</version>         </dependency>        <!– Expression Language (depends on spring-core) Define this if you use             Spring Expression APIs (org.springframework.expression.*) –>         <dependency>             <groupId>org.springframework</groupId>             <artifactId>spring-expression</artifactId>             <version>${org.springframework.version}</version>         </dependency>        <!– Bean Factory and JavaBeans utilities (depends on spring-core) Define             this if you use Spring Bean APIs (org.springframework.beans.*) –>         <dependency>             <groupId>org.springframework</groupId>             <artifactId>spring-beans</artifactId>             <version>${org.springframework.version}</version>         </dependency>        <!– Aspect Oriented Programming (AOP) Framework (depends on spring-core,             spring-beans) Define this if you use Spring AOP APIs (org.springframework.aop.*) –>         <dependency>             <groupId>org.springframework</groupId>             <artifactId>spring-aop</artifactId>             <version>${org.springframework.version}</version>         </dependency>        <!– Application Context (depends on spring-core, spring-expression, spring-aop,             spring-beans) This is the central artifact for Spring’s Dependency Injection             Container and is generally always defined –>         <dependency>             <groupId>org.springframework</groupId>             <artifactId>spring-context</artifactId>             <version>${org.springframework.version}</version>         </dependency>        <!– Various Application Context utilities, including EhCache, JavaMail,             Quartz, and Freemarker integration Define this if you need any of these integrations –>         <dependency>             <groupId>org.springframework</groupId>             <artifactId>spring-context-support</artifactId>             <version>${org.springframework.version}</version>         </dependency>        <!– Transaction Management Abstraction (depends on spring-core, spring-beans,             spring-aop, spring-context) Define this if you use Spring Transactions or             DAO Exception Hierarchy (org.springframework.transaction.*/org.springframework.dao.*) –>         <dependency>             <groupId>org.springframework</groupId>             <artifactId>spring-tx</artifactId>             <version>${org.springframework.version}</version>         </dependency>        <!– JDBC Data Access Library (depends on spring-core, spring-beans, spring-context,             spring-tx) Define this if you use Spring’s JdbcTemplate API (org.springframework.jdbc.*) –>         <dependency>             <groupId>org.springframework</groupId>             <artifactId>spring-jdbc</artifactId>             <version>${org.springframework.version}</version>         </dependency>        <!– Object-to-Relation-Mapping (ORM) integration with Hibernate, JPA,             and iBatis. (depends on spring-core, spring-beans, spring-context, spring-tx)             Define this if you need ORM (org.springframework.orm.*) –>         <dependency>             <groupId>org.springframework</groupId>             <artifactId>spring-orm</artifactId>             <version>${org.springframework.version}</version>         </dependency>        <!– Object-to-XML Mapping (OXM) abstraction and integration with JAXB,             JiBX, Castor, XStream, and XML Beans. (depends on spring-core, spring-beans,             spring-context) Define this if you need OXM (org.springframework.oxm.*) –>         <dependency>             <groupId>org.springframework</groupId>             <artifactId>spring-oxm</artifactId>             <version>${org.springframework.version}</version>         </dependency>        <!– Web application development utilities applicable to both Servlet and             Portlet Environments (depends on spring-core, spring-beans, spring-context)             Define this if you use Spring MVC, or wish to use Struts, JSF, or another             web framework with Spring (org.springframework.web.*) –>         <dependency>             <groupId>org.springframework</groupId>             <artifactId>spring-web</artifactId>             <version>${org.springframework.version}</version>         </dependency>        <!– Spring MVC for Servlet Environments (depends on spring-core, spring-beans,             spring-context, spring-web) Define this if you use Spring MVC with a Servlet             Container such as Apache Tomcat (org.springframework.web.servlet.*) –>         <dependency>             <groupId>org.springframework</groupId>             <artifactId>spring-webmvc</artifactId>             <version>${org.springframework.version}</version>         </dependency>        <!– Spring MVC for Portlet Environments (depends on spring-core, spring-beans,             spring-context, spring-web) Define this if you use Spring MVC with a Portlet             Container (org.springframework.web.portlet.*) –>         <dependency>             <groupId>org.springframework</groupId>             <artifactId>spring-webmvc-portlet</artifactId>             <version>${org.springframework.version}</version>         </dependency>        <!– Support for testing Spring applications with tools such as JUnit and             TestNG This artifact is generally always defined with a ‘test’ scope for             the integration testing framework and unit testing stubs –>         <dependency>             <groupId>org.springframework</groupId>             <artifactId>spring-test</artifactId>             <version>${org.springframework.version}</version>             <scope>test</scope>         </dependency>         <!– 上面的都是Spring的jar包，可以选择性的添加 –>         <!– Mybatis 开发包 –>         <dependency>             <groupId>org.mybatis</groupId>             <artifactId>mybatis-spring</artifactId>             <version>1.1.1</version>         </dependency>         <!– Mybatis 和Spring的 整合包，是mybatis出的–>         <dependency>             <groupId>org.mybatis</groupId>             <artifactId>mybatis</artifactId>             <version>3.1.1</version>         </dependency>        <!– tomcat servlet开发包 –>         <dependency>             <groupId>javax.servlet</groupId>             <artifactId>jstl</artifactId>             <version>1.2</version>         </dependency>         <!– JSTL标签库 –>         <dependency>             <groupId>javax.servlet</groupId>             <artifactId>servlet-api</artifactId>             <version>2.5</version>         </dependency>         <!– mysql的数据库驱动包 –>         <dependency>             <groupId>mysql</groupId>             <artifactId>mysql-connector-java</artifactId>             <version>5.1.21</version>         </dependency>         <!– 日志打印 log4j包 –>         <dependency>             <groupId>log4j</groupId>             <artifactId>log4j</artifactId>             <version>1.2.14</version>             <scope>runtime</scope>         </dependency>         <!– 下面两个包 commons-dbcp,commons-pool 是配置数据源的包–>         <dependency>             <groupId>commons-dbcp</groupId>             <artifactId>commons-dbcp</artifactId>             <version>1.4</version>         </dependency>         <dependency>             <groupId>commons-pool</groupId>             <artifactId>commons-pool</artifactId>             <version>1.4</version>         </dependency>        <!– 日志记录依赖包，很多都依赖此包，像log4j,json-lib等等 –>         <dependency>             <groupId>commons-logging</groupId>             <artifactId>commons-logging-api</artifactId>             <version>1.1</version>         </dependency>         <!– Spring 文件上传的包 –>         <dependency>             <groupId>commons-fileupload</groupId>             <artifactId>commons-fileupload</artifactId>             <version>1.2.2</version>         </dependency>         <!– Spring 文件上传的依赖包 –>         <dependency>             <groupId>org.apache.commons</groupId>             <artifactId>commons-io</artifactId>             <version>1.3.2</version>         </dependency>         <!– dom4j 解析 XML文件的包 –>         <dependency>             <groupId>dom4j</groupId>             <artifactId>dom4j</artifactId>             <version>1.6.1</version>         </dependency>         <!– 下面的三个包是在配置事务的时候用到的 spring的依赖包  –>         <dependency>             <groupId>org.aspectj</groupId>             <artifactId>aspectjweaver</artifactId>             <version>1.7.0</version>         </dependency>         <dependency>             <groupId>aopalliance</groupId>             <artifactId>aopalliance</artifactId>             <version>1.0</version>         </dependency>         <dependency>             <groupId>cglib</groupId>             <artifactId>cglib-nodep</artifactId>             <version>2.2.2</version>         </dependency>        <!– JSON lib 开发包 以及它的依赖包 –>         <dependency>             <groupId>net.sf.json-lib</groupId>             <artifactId>json-lib</artifactId>             <classifier>jdk15</classifier>             <version>2.4</version>         </dependency>         <dependency>             <groupId>commons-beanutils</groupId>             <artifactId>commons-beanutils</artifactId>             <version>1.8.3</version>         </dependency>         <dependency>             <groupId>commons-collections</groupId>             <artifactId>commons-collections</artifactId>             <version>3.2.1</version>         </dependency>         <dependency>             <groupId>commons-lang</groupId>             <artifactId>commons-lang</artifactId>             <version>2.6</version>         </dependency>         <dependency>             <groupId>net.sf.ezmorph</groupId>             <artifactId>ezmorph</artifactId>             <version>1.0.5</version>         </dependency>         <!– junit 测试包 –>         <dependency>             <groupId>junit</groupId>             <artifactId>junit</artifactId>             <version>3.8.1</version>             <scope>test</scope>         </dependency>     </dependencies>     <build>         <finalName>Test</finalName>     </build> </project>
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修改pom文件后，保存，maven会自动的去download这些jar包到本地。等待的时间可能会很长。上面我把所有我这次项目用到的包都罗列出来了，如果你用不到的，可以自行删除。下载完成过后，点开项目左侧的Maven Dependencies，你就能看到很多的下载的JAR包了。

8. 修改web.xml，配置Spring，spring MVC，log4j，乱码处理等。

<?xml version="1.0" encoding="UTF-8"?> <web-app     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"     xmlns="http://java.sun.com/xml/ns/javaee"     xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"     xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"     id="WebApp_ID" version="2.5">    <!– Spring context startup Spring的初始化–>     <context-param>         <param-name>contextConfigLocation</param-name>         <param-value><!– Spring的配置文件 –>         classpath:/com/comverse/timesheet/config/ApplicationContext.xml         </param-value>     </context-param>     <listener>         <listener-class>         org.springframework.web.context.ContextLoaderListener         </listener-class>     </listener>    <!– Spring character filter 处理乱码–>     <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>     </filter>     <filter-mapping>         <filter-name>encodingFilter</filter-name>         <url-pattern>/*</url-pattern>     </filter-mapping>    <!– Configuration of Log4j log4j的配置 –>     <context-param>         <param-name>log4jConfigLocation</param-name>         <param-value><!– log4j.properties文件路径 –>         classpath:/com/comverse/timesheet/config/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>    <!– Spring MVC Configuration Spring MVC的配置–>     <servlet>         <servlet-name>dispatcher</servlet-name>         <servlet-class>         org.springframework.web.servlet.DispatcherServlet         </servlet-class>         <init-param>            <param-name>contextConfigLocation</param-name>            <param-value><!– dispatcher-servlet.xml文件路径 –>            classpath:/com/comverse/timesheet/config/dispatcher-servlet.xml            </param-value>           </init-param>         <load-on-startup>1</load-on-startup>     </servlet>     <servlet-mapping>         <servlet-name>dispatcher</servlet-name>         <url-pattern>*.do</url-pattern>     </servlet-mapping> </web-app>
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修改后保存该文件。

9.添加 log4j.properties,jdbc.properties等配置文件：

路径位置：

各个配置文件的内容如下： (1). log4j.properties: log4j的配置

#配置了控制台和文本记录两种方式 log4j.rootLogger=DEBUG,CONSOLE,FILEOUT log4j.addivity.org.apache=true# CONSOLE log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender log4j.appender.Threshold=DEBUG log4j.appender.CONSOLE.Target=System.out log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout #log4j.appender.CONSOLE.layout.ConversionPattern=[framework] %d – %c -%-4r [%t] %-5p %c %x – %m%n log4j.appender.CONSOLE.layout.ConversionPattern=[%-5p] %d{yyyy-MM-dd HH/:mm/:ss} /:%m%n# # FILEOUT log4j.appender.FILEOUT=org.apache.log4j.RollingFileAppender log4j.appender.FILEOUT.File=${catalina.home}//file.log log4j.appender.fileout.MaxFileSize=100000KB # default is true，append to the file; if false, the replace the log file whenever restart system log4j.appender.FILEOUT.Append=true #RollingFileAppender没有DatePattern这个属性 log4j.appender.FILEOUT.layout=org.apache.log4j.PatternLayout #log4j.appender.CONSOLE.layout.ConversionPattern=[framework] %d – %c -%-4r [%t] %-5p %c %x – %m%n log4j.appender.FILEOUT.layout.ConversionPattern=[%-5p]_%d{yyyy-MM-dd HH:mm:ss} :%m%n
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(2). jdbc.properties: 数据库连接信息的配置

driver=com.mysql.jdbc.Driver url=jdbc:mysql://localhost:3306/timesheet user=root password=root
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(3). ApplicationContext.xml: Spring的配置文件

<?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-2.5.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd">     <!– jdbc.properties文件路径  –>     <bean         class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">         <property name="locations"         value="classpath:/com/comverse/timesheet/config/jdbc.properties" />     </bean>     <!– 数据源的配置 –>     <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"         destroy-method="close">         <property name="driverClassName" value="${driver}" />         <property name="url" value="${url}" />         <property name="username" value="${user}" />         <property name="password" value="${password}" />         <!– data source configuration –>         <property name="initialSize" value="60" /><!– initial connections –>         <property name="maxActive" value="100" /><!– MAX connections –>         <property name="maxIdle" value="50" /><!– MAX idle connections –>         <property name="minIdle" value="10" /><!– MIN idle connections –>         <!– 处理mysql 8小时自动断开连接的问题 –>         <property name="testWhileIdle" value="true" />         <property name="testOnBorrow" value="false" />         <property name="testOnReturn" value="false" />         <property name="validationQuery" value="select 1" />         <property name="timeBetweenEvictionRunsMillis" value="20000" />         <property name="numTestsPerEvictionRun" value="100" />     </bean>     <!–====事务相关控制==–>     <bean id="transactionManager"         class="org.springframework.jdbc.datasource.DataSourceTransactionManager">         <property name="dataSource" ref="dataSource" />     </bean>     <tx:advice id="userTxAdvice" transaction-manager="transactionManager">         <tx:attributes>             <tx:method name="*" propagation="REQUIRED" read-only="false"                 rollback-for="java.lang.Exception"/>         </tx:attributes>     </tx:advice>     <aop:config>         <aop:pointcut id="pc"             expression="execution(* com.comverse.timesheet.web.business.*.*(..))" />              <!– 把事务控制在Business层 –>         <aop:advisor pointcut-ref="pc" advice-ref="userTxAdvice" />     </aop:config>     <!– MyBatis sqlSessionFactory 配置 mybatis–>     <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">         <property name="configLocation"         value="classpath:/com/comverse/timesheet/mybatis/SqlMapConfig.xml" />         <property name="dataSource" ref="dataSource" />     </bean>     <bean id="sqlSession" class="org.mybatis.spring.SqlSessionTemplate">         <constructor-arg index="0" ref="sqlSessionFactory" />     </bean>     <!– business AND implementation beans 包含ImplAndBusinessBeans.xml文件 –>     <import resource="ImplAndBusinessBeans.xml" /> </beans>
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(4). dispatcher-servlet: Spring MVC的配置文件

<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans"     xmlns:aop="http://www.springframework.org/schema/aop"     xmlns:context="http://www.springframework.org/schema/context"     xmlns:p="http://www.springframework.org/schema/p"     xmlns:tx="http://www.springframework.org/schema/tx"     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"     xsi:schemaLocation="  http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd">    <context:annotation-config />     <!– 把标记了@Controller注解的类转换为bean –>     <context:component-scan base-package="com.comverse.timesheet.web.controller" />    <!– 启动Spring MVC的注解功能，完成请求和注解POJO的映射 –>     <bean         class="org.springframework.web.servlet.mvc.             annotation.AnnotationMethodHandlerAdapter" />     <!– 视图 beans –>     <bean id="viewResolver"         class="org.springframework.web.servlet.view.InternalResourceViewResolver"         p:prefix="/WEB-INF/jsp/" p:suffix=".jsp" />         <!– Controller 跳转的JSP页面路径 和 文件的后缀 –>     <!– 文件上传 –>        <bean id="multipartResolver"         class="org.springframework.web.multipart.commons.CommonsMultipartResolver">         <!– set the max upload size100MB –>         <property name="maxUploadSize">             <value>104857600</value>         </property>         <property name="maxInMemorySize">             <value>1024000</value>         </property>     </bean> </beans>
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(5). ImplAndBusinessBeans.xml: 这个文件主要放置implementation 和 Business的 bean 对象。

<?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-2.5.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd"><!– 这两个类的具体实现会在后面给出来–>     <bean id="ITestTableDAOImpl" class="com.comverse.timesheet.web.impl.ITestTableDAOImpl">         <property name="session" ref="sqlSession" />     </bean>     <bean id="TestBusiness" class="com.comverse.timesheet.web.business.TestBusiness">         <property name="testDAO" ref="ITestTableDAOImpl" />     </bean> </beans>
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此时，几个主要的配置文件我们已经加进来了，只有mybatis还有几个配置文件没有加进来。

10. 创建包，用于开发系统：

bean : 放pojo, java bean business : 放业务层 conroller : 放控制层，主要负责接受请求和调用business,返回视图结果 dao : 放每个bean对应的接口 impl : dal 接口的具体实现 interceptor: 过滤器 resource : 资源包，比如文件路径，配置文件呀 test : 测试包 util : 工具包 web : 是装样子的哟，不是我这次要用的，是个空包。

10. 创建本次测试的java文件

(1). bean : TestTable.java:

package com.comverse.timesheet.web.bean;import java.util.Date;public class TestTable {     private int id;     private String name;     private Date birthday;    //setter and getter   …………….}
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(2). dao : ITestTableDAO.java

package com.comverse.timesheet.web.dao;import com.comverse.timesheet.web.bean.TestTable;public interface ITestTableDAO {     public boolean add(TestTable test) throws Exception; }
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(3). impl : ITestTableDAOImpl:

package com.comverse.timesheet.web.impl;import com.comverse.timesheet.web.bean.TestTable; import com.comverse.timesheet.web.dao.ITestTableDAO; import com.comverse.timesheet.web.util.BasicSqlSupport;public class ITestTableDAOImpl extends BasicSqlSupport implements ITestTableDAO {     @Override     public boolean add(TestTable test) throws Exception {         boolean flag=false;         int count=this.session.insert("com.comverse.timesheet.web.mapper.Test.add",test);         if(count>0){             flag=true;         }         return flag;     } }
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(4). business: TestBusiness.java

package com.comverse.timesheet.web.business;import java.util.Date;import javax.annotation.Resource;import org.springframework.transaction.annotation.Transactional;import com.comverse.timesheet.web.bean.TestTable; import com.comverse.timesheet.web.dao.ITestTableDAO;public class TestBusiness {     private ITestTableDAO testDAO=null;     public ITestTableDAO getTestDAO() {         return testDAO;     }     public void setTestDAO(ITestTableDAO testDAO) {         this.testDAO = testDAO;     }     public void add() throws Exception{         TestTable test=new TestTable();         test.setName("yuanmomo6");         test.setBirthday(new Date());         try {             testDAO.add(test);         } catch (Exception e) {             // TODO Auto-generated catch block             throw e;         }     } }
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(5). Controller : ResultController

package com.comverse.timesheet.web.controller;import javax.annotation.Resource; import javax.servlet.http.HttpServletRequest;import org.springframework.stereotype.Controller; import org.springframework.ui.ModelMap; import org.springframework.web.bind.annotation.RequestMapping;import com.comverse.timesheet.web.business.TestBusiness;@Controller @RequestMapping("/result.do") public class ResultController {     //将spring 配置文件中的bean 通过setter注入进来     @Resource(name="TestBusiness")     private TestBusiness testBusiness=null;     public void setTestBusiness(TestBusiness testBusiness) {         this.testBusiness = testBusiness;     }    @RequestMapping     public String viewUser(HttpServletRequest request, ModelMap modelMap)             throws Exception {         System.out.println("$$$$$$$$$$$$$$$$$$$$$you want to check the result.jsp+++++++++++++");        System.out.println("$$$$$$$$$$$$$$$$$$$$$ ready to insert   +++++++++++++");         testBusiness.add();         System.out.println("$$$$$$$$$$$$$$$$$$$$$ insert completed +++++++++++++");         return "result";     } }
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(6). util : BasicSqlSupport.java所有的implementation类都会继承这个类，在ImplAndBusinessBeans.xml文件中注册的bean,都会注入一个sqlsession。例如上面的implementation就是继承了这个类。

package com.comverse.timesheet.web.util;import org.apache.ibatis.session.SqlSession;public class BasicSqlSupport{     protected SqlSession session;    public SqlSession getSession() {         return session;     }     public void setSession(SqlSession session) {         this.session = session;     } }
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加入mybatis的配置文件： (1). 为 TestTable bean 创建mapper文件，路径为com/comverse/timesheet/mybatis/mapper/Test.xml: Test.xml

INSERT INTO testtable (NAME,DATE) VALUES(#{name},#{birthday})

(1). 加入Mybatis的配置文件：在上面的ApplicationContext.xml文件中我们已经包含了SqlMapConfig.xml文件。在/com/comverse/timesheet/mybatis/下创建 SqlMapConfig.xml:

<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE configuration PUBLIC "-//ibatis.apache.org//DTD Config 3.0//EN" "http://ibatis.apache.org/dtd/ibatis-3-config.dtd"> <configuration>     <typeAliases>         <!– Entities 参数实体 –>         <!– com.comverse.timesheet.web.bean 包中的 所有Bean, 取个别名 –>         <!– 比如TestTable类就用Test来表示–>         <typeAlias type="com.comverse.timesheet.web.bean.TestTable"         alias="Test" />     </typeAliases>     <mappers>         <!– 对应Bean类的xml配置文件的路径信息 –>         <mapper resource="com/comverse/timesheet/mybatis/mapper/Test.xml" />     </mappers> </configuration>
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框架的整合完成，项目的目录结构如下：
编写一个测试页面，这个页面的路径在dispatcher-servlet.xml中已经确定—/WEB-INF/jsp/：文件名在controller中已经定义–result, 后缀是 .jsp, 所以就是 result.jsp。

(1). result.jsp:

<%@page language="java" contentType="text/html; charset=utf-8"     pageEncoding="utf-8"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>Insert title here</title> </head> <body>     <h1> 你插入数据成功了！！！</h1> </body> </html>
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14.至此，我们的项目完成了，部署。

部署之前检查一下problem框，看有没有问题。这次我突然遇到一个问题，我上个星期五的时候都没有遇到，今天就奇了怪了。不过没事，问题来就想办法解决它。 (1).在problem处发现这个问题

Description： Classpath entry org.maven.ide.eclipse.MAVEN2_CLASSPATH_CONTAINER will not be exported or published. Runtime ClassNotFoundExceptions may result. 如果部署了项目，启动，会报找不到类异常。

(2).问题的原因参考 Loose classpath web libraries support 在项目上右键–>properties—>deployment Assembly–>add,选择 java build path entries，然后选中Maven dependencies–>finish–>OK,就能解决问题啦。

14. 一点小插曲过后，我们再次的部署项目，重新启动，看日志，项目成功的启动起来啦。

打开浏览器：访问 http://localhost:8080/Test/，看到HelloWord

先查看数据的信息，没有数据，返回0行。

接着访问， http://localhost:8080/Test/result.do 看到结果了，高兴哇！！再看数据库

数据插入成功，至此，我们的项目搭建完整的完成了！！！如有错别字，请原谅，因为打字太痛苦啦！！谢谢大家！！

检查一下我们的日志信息：

[DEBUG] 2012-08-13 18:10:34 :DispatcherServlet with name ‘dispatcher’ determining Last-Modified value for [/Test/result.do] [DEBUG] 2012-08-13 18:10:34 :Mapping [/result.do] to handler ‘com.comverse.timesheet.web.controller.ResultController@7056d5’ [DEBUG] 2012-08-13 18:10:34 :Last-Modified value for [/Test/result.do] is: -1 [DEBUG] 2012-08-13 18:10:34 :DispatcherServlet with name ‘dispatcher’ processing GET request for [/Test/result.do] [DEBUG] 2012-08-13 18:10:34 :Invoking request handler method: public java.lang.String com.comverse.timesheet.web.controller.ResultController.viewUser(javax.servlet.http.HttpServletRequest,org.springframework.ui.ModelMap) throws java.lang.Exception $$$$$$$$$$$$$$$$$$$$ $$$$$$$$$$$$$$$$$$$$ ready to insert +++++++++++++ [DEBUG] 2012-08-13 18:10:34 :Creating new transaction with name [com.comverse.timesheet.web.business.TestBusiness.add]: PROPAGATION_REQUIRED,ISOLATION_DEFAULT,-java.lang.Exception [DEBUG] 2012-08-13 18:10:34 :Acquired Connection [jdbc:mysql://localhost:3306/timesheet, UserName=root@localhost, MySQL-AB JDBC Driver] for JDBC transaction [DEBUG] 2012-08-13 18:10:34 :Switching JDBC Connection [jdbc:mysql://localhost:3306/timesheet, UserName=root@localhost, MySQL-AB JDBC Driver] to manual commit [DEBUG] 2012-08-13 18:10:34 :Creating a new SqlSession [DEBUG] 2012-08-13 18:10:34 :Registering transaction synchronization for SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@177e6b4] [DEBUG] 2012-08-13 18:10:34 :JDBC Connection [jdbc:mysql://localhost:3306/timesheet, UserName=root@localhost, MySQL-AB JDBC Driver] will be managed by Spring [DEBUG] 2012-08-13 18:10:34 :ooo Using Connection [jdbc:mysql://localhost:3306/timesheet, UserName=root@localhost, MySQL-AB JDBC Driver] [DEBUG] 2012-08-13 18:10:34 :==> Preparing: INSERT INTO testtable (NAME,DATE) VALUES(?,?) [DEBUG] 2012-08-13 18:10:34 :==> Parameters: yuanmomo6(String), 2012-08-13 18:10:34.122(Timestamp) [DEBUG] 2012-08-13 18:10:34 :Releasing transactional SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@177e6b4] [DEBUG] 2012-08-13 18:10:34 :Initiating transaction commit [DEBUG] 2012-08-13 18:10:34 :Committing JDBC transaction on Connection [jdbc:mysql://localhost:3306/timesheet, UserName=root@localhost, MySQL-AB JDBC Driver] [DEBUG] 2012-08-13 18:10:34 :Transaction synchronization committing SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@177e6b4] [DEBUG] 2012-08-13 18:10:34 :Transaction synchronization closing SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@177e6b4] [DEBUG] 2012-08-13 18:10:34 :Releasing JDBC Connection [jdbc:mysql://localhost:3306/timesheet, UserName=root@localhost, MySQL-AB JDBC Driver] after transaction [DEBUG] 2012-08-13 18:10:34 :Returning JDBC Connection to DataSource $$$$$$$$$$$$$$$$$$$$$ insert completed +++++++++++++ [DEBUG] 2012-08-13 18:10:34 :Invoking afterPropertiesSet() on bean with name ‘result’ [DEBUG] 2012-08-13 18:10:34 :Rendering view [org.springframework.web.servlet.view.JstlView: name ‘result’; URL [/WEB-INF/jsp/result.jsp]] in DispatcherServlet with name ‘dispatcher’ [DEBUG] 2012-08-13 18:10:34 :Forwarding to resource [/WEB-INF/jsp/result.jsp] in InternalResourceView ‘result’ [DEBUG] 2012-08-13 18:10:34 :Successfully completed request [DEBUG] 2012-08-13 18:10:34 :Returning cached instance of singleton bean ‘sqlSessionFactory’

可以看出我们的事务也添加成功。

Spring MVC的流程： request–>controller–>business–>implementation–>mysql

GitHub项目地址：暂无

原文 https://juejin.im/post/5c0e29a6f265da613b6f9ad5

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