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.Driver
jdbc.url=jdbc:mysql://127.0.0.1:3306/mybatis?useUnicode=true&characterEncoding=utf8&autoReconnect=true&allowMultiQueries=true
jdbc.username=root
jdbc.password=1234

7、log4j.properties

log4j.rootLogger=DEBUG,A1
log4j.logger.org.mybatis = DEBUG

log4j.appender.A1=org.apache.log4j.ConsoleAppender
log4j.appender.A1.layout=org.apache.log4j.PatternLayout
log4j.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.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd http://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.xsd http://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 -->
<bean
class="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.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd http://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.xsd http://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 -->
<bean
class="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.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd http://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.xsd http://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_user
limit #{start},#{rows}
</select>
<select id="queryUserCount" resultType="int">
SELECT count(*) FROM
tb_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")
@Controller
public class UserController {

@Autowired
private UserService userService;

@RequestMapping(value = "list", method = RequestMethod.GET)
public String toUsersPage() {
return "users";
}

@RequestMapping(value = "data/list", method = RequestMethod.GET)
@ResponseBody
public 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