Maven的SSM开发环境的搭建

1、新建Maven工程itcast-user

      

2、统一管理依赖的版本

     2.1 导入itcast-parent的maven项目

            

导入itcast-parent项目

            

     2.2 让itcast-user继承itcast-parent

          

配置为

<!--指定父节点 --><parent><groupId>cn.itcast.parent</groupId><artifactId>itcast-parent</artifactId><version>0.0.1-SNAPSHOT</version></parent>

     2.3 在itcast-user加入jar的依赖

          

     2.4 在 itcast-user加入插件的依赖

           

3、tomcat插件的运行

   

4、web.xml文件的配置

      4.1 web.xml的配置

<?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"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"><display-name>itcast-user</display-name><!--加载Spring的配置文件 --><context-param><param-name>contextConfigLocation</param-name><param-value>classpath:spring/applicationContext*.xml</param-value></context-param><!--Spring的ApplicationContext 载入 --><listener><listener-class>org.springframework.web.context.ContextLoaderListener</listener-class></listener><!-- 编码过滤器，以UTF8编码 --><filter><filter-name>encodingFilter</filter-name><filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class><init-param><param-name>encoding</param-name><param-value>UTF8</param-value></init-param></filter><filter-mapping><filter-name>encodingFilter</filter-name><url-pattern>/*</url-pattern></filter-mapping><!-- 配置SpringMVC框架入口 --><servlet><servlet-name>itcast-user</servlet-name><servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class><init-param><param-name>contextConfigLocation</param-name><param-value>classpath:spring/springmvc.xml</param-value></init-param><load-on-startup>1</load-on-startup></servlet><servlet-mapping><servlet-name>itcast-user</servlet-name><!-- 可以： *.xxx /xxx/* / 不可以： /* --><url-pattern>/rest/*</url-pattern></servlet-mapping><welcome-file-list><welcome-file>index.html</welcome-file></welcome-file-list></web-app>

      4.2 Spring MVC 的配置

         

5、涉及到的配置文件的放在目录

      

6、jdbc.properties

jdbc.driverClassName=com.mysql.jdbc.Driverjdbc.url=jdbc:mysql://127.0.0.1:3306/mybatis?useUnicode=true&characterEncoding=utf8&autoReconnect=true&allowMultiQueries=truejdbc.username=rootjdbc.password=1234

7、log4j.properties

log4j.rootLogger=DEBUG,A1log4j.logger.org.mybatis = DEBUGlog4j.appender.A1=org.apache.log4j.ConsoleAppenderlog4j.appender.A1.layout=org.apache.log4j.PatternLayoutlog4j.appender.A1.layout.ConversionPattern=%-d{yyyy-MM-dd HH:mm:ss,SSS} [%t] [%c]-[%p] %m%n

8、Spring容器的配置

<beans xmlns="http://www.springframework.org/schema/beans"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/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsdhttp://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsdhttp://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsdhttp://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd"><!-- Spring的配置文件 --><!-- 1、读取资源文件 --><!-- 2、<context:property-placeholder /> 底层用的就是下面的bean --><!-- 使用spring自带的占位符替换功能 --><beanclass="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"><!-- 允许JVM参数覆盖 --><property name="systemPropertiesModeName" value="SYSTEM_PROPERTIES_MODE_OVERRIDE" /><!-- 忽略没有找到的资源文件 --><property name="ignoreResourceNotFound" value="true" /><!-- 配置资源文件 --><property name="locations"><list><value>classpath:jdbc.properties</value></list></property></bean><!-- 2、配置要扫描包 ,解析包里面的注解信息 --><context:component-scan base-package="cn.itcast" /><!-- 3、定义数据源,bonecp数据源更有效 --><bean id="dataSource" class="com.jolbox.bonecp.BoneCPDataSource"destroy-method="close"><!-- 数据库驱动 --><property name="driverClass" value="${jdbc.driverClassName}" /><!-- 相应驱动的jdbcUrl --><property name="jdbcUrl" value="${jdbc.url}" /><!-- 数据库的用户名 --><property name="username" value="${jdbc.username}" /><!-- 数据库的密码 --><property name="password" value="${jdbc.password}" /><!-- 检查数据库连接池中空闲连接的间隔时间，单位是分，默认值：240，如果要取消则设置为0 --><property name="idleConnectionTestPeriod" value="60" /><!-- 连接池中未使用的链接最大存活时间，单位是分，默认值：60，如果要永远存活设置为0 --><property name="idleMaxAge" value="30" /><!-- 每个分区最大的连接数 --><!-- 判断依据：请求并发数 --><property name="maxConnectionsPerPartition" value="100" /><!-- 每个分区最小的连接数 --><property name="minConnectionsPerPartition" value="5" /></bean></beans>

9、Spring事务的配置

<beans xmlns="http://www.springframework.org/schema/beans"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/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsdhttp://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsdhttp://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsdhttp://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd"><!-- 定义事务管理器 --><bean id="transactionManager"class="org.springframework.jdbc.datasource.DataSourceTransactionManager"><property name="dataSource" ref="dataSource" /></bean><!-- 定义事务策略 --><tx:advice id="txAdvice" transaction-manager="transactionManager"><tx:attributes><!--所有以query开头的方法都是只读的 --><tx:method name="query*" read-only="true" /><!--其他方法使用默认事务策略 --><tx:method name="*" /></tx:attributes></tx:advice><aop:config><!--pointcut元素定义一个切入点，execution中的第一个星号 用以匹配方法的返回类型， 这里星号表明匹配所有返回类型。 com.abc.dao.*.*(..)表明匹配cn.itcast.mybatis.service包下的所有类的所有 方法 --><aop:pointcut id="myPointcut"expression="execution(* cn.itcast.user.service.*.*(..))" /><!--将定义好的事务处理策略应用到上述的切入点 --><aop:advisor advice-ref="txAdvice" pointcut-ref="myPointcut" /></aop:config></beans>

10、SpringMVC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: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/beans http://www.springframework.org/schema/beans/spring-beans.xsd        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd"><!-- 注解驱动 --><mvc:annotation-driven /><!--要扫描的Controller的package --><context:component-scan base-package="cn.itcast.user.controller" /><!-- 定义视图解析器 --><beanclass="org.springframework.web.servlet.view.InternalResourceViewResolver"><property name="prefix" value="/WEB-INF/views/" /><property name="suffix" value=".jsp" /></bean></beans>

对于，controller的注解扫描，应该配置在SpringMVC的配置文件里面。

11、Mybatis与Spring的整合

       11.1 整合文件

<beans xmlns="http://www.springframework.org/schema/beans"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/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsdhttp://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsdhttp://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsdhttp://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd"><bean class="org.mybatis.spring.SqlSessionFactoryBean"><!-- 配置数据源 --><property name="dataSource" ref="dataSource" /><!-- 指定mybatis的全局配置文件 --><property name="configLocation" value="classpath:mybatis/mybatis-config.xml" /><!-- 配置别名包 --><property name="typeAliasesPackage" value="cn.itcast.user.pojo" /><!-- 指定mybatis的Mapper的mapper.xml文件 --><!-- mappers/**/*.xml --><!--第一个**表示识别mappers目录下的子目录以及*.xml文件 --><!--第二个*表示，mappers目录下的子目录下的*.xml文件 --><property name="mapperLocations" value="classpath:mybatis/mappers/**/*.xml" /></bean><!-- Mapper接口扫描器 --><bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"><property name="basePackage" value="cn.itcast.user.mapper" /></bean></beans>

       11.2  Mybatis的全局配置文件

<?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></configuration>

12、涉及到的页面

       

13、UserMapper.java和UserMapper.xml的实现

       13.1 UserMapper.java

import java.util.List;import cn.itcast.user.pojo.QueryInfo;import cn.itcast.user.pojo.User;public interface UserMapper {public List<User> queryUserList();public List<User> queryUserPageInfo(QueryInfo queryInfo);public int queryUserCount();}

       13.2 UserMapper.xml

<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN""http://mybatis.org/dtd/mybatis-3-mapper.dtd"><mapper namespace="cn.itcast.user.mapper.UserMapper"><select id="queryUserList" resultType="user">SELECT * FROM tb_user</select><select id="queryUserPageInfo" parameterType="queryInfo"resultType="user">SELECT * FROM tb_userlimit #{start},#{rows}</select><select id="queryUserCount" resultType="int">SELECT count(*) FROMtb_user</select></mapper>

14、UserController的实现

import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import org.springframework.web.bind.annotation.RequestParam;import org.springframework.web.bind.annotation.ResponseBody;import cn.itcast.user.bean.EasyUIResult;import cn.itcast.user.pojo.QueryInfo;import cn.itcast.user.service.UserService;@RequestMapping("user")@Controllerpublic class UserController {@Autowiredprivate UserService userService;@RequestMapping(value = "list", method = RequestMethod.GET)public String toUsersPage() {return "users";}@RequestMapping(value = "data/list", method = RequestMethod.GET)@ResponseBodypublic EasyUIResult queryUserList(@RequestParam(value = "page", defaultValue = "1") Integer page,@RequestParam(value = "rows", defaultValue = "5") Integer rows) {QueryInfo queryInfo = new QueryInfo(page, rows);return this.userService.queryUserList(queryInfo);}}

15、程序的测试结果

16、源码下载