SSM整合之環境搭建
一. 說明 : 該整合方式為 : XML+注解
二. 思路 :
- 先搭建Spring的配置搭建完成
- 使用Spring整合SpringMVC架構
- 使用Spring整合MyBatis架構
三. 步驟:
- 建立Maven的工程 , (使用到工程的聚合和拆分的概念)
- pom.xml檔案配置:
- 把項目部署到tomcat伺服器中即可
-
Spring開發環境搭建
在resources目錄中,添加applicationContext.xml檔案,并在該檔案内開啟注解掃描 , 并忽略web層的掃描
- Spring整合SpringMVC架構
a) 目的:在controller中能成功的調用service對象中的方法。
b) 配置SpringMVC的開發環境
i. 在web.xml中配置DispatcherServlet前端控制器,并配置在伺服器啟動時讓DispathcherServlet對象建立
ii. 在web.xml中配置CharacterEncodingFilter解決中文亂碼的過濾器
iii. 建立SpringMVC.xml的配置檔案,并在裡面配置視圖解析器以及開啟SpringMVC的注解的支援和對Controller注解的掃描 ,設定靜态資源不過濾
c) Spring整合SpringMVC , 為了在項目啟動時,就去加載applicationContext.xml檔案,在web.xml中配置ContextLoaderListener監聽器
(該監聽器隻能加載applicationContext.xml的配置檔案)。
- Spring整合MyBatis架構(在整合時,SqlMapConfig.xml檔案不需要了)
a) 搭建MyBatis架構的環境
添加SqlMapConfig.xml的配置檔案,用于配置資料源和映射dao.xml
b) Spring整合MyBatis架構
目的:把SqlMapConfig.xml配置檔案中的内容配置到applicationContext.xml配置檔案中,同時把 SqlMapConfig.xml檔案移除.
即将c3p0的連接配接池對象和SqlSessionFactory對象以及掃描Dao的包配置到ioc容器中
四. 注意:
在domain包下,寫實體類 ;
在dao包下 , 寫實體類所對應的Dao接口, dao接口中的方法可用注解(select,insert,update,delete),也可用對應的dao.xml檔案,使用dao.xml時,需注意dao.xml在resources目錄中的包路徑須與dao接口在java目錄下的包路徑相同.
- applicationContext.xml檔案,springMVC.xml檔案需在resources目錄下
- 在把dao和service以及controller需要放入ioc容器中,以便其他類的方法在使用時可通過依賴注入,來使用
Controller依賴于service;
service依賴于dao;
dao依賴于domain
dao層所用的注解 : @Repository
Service層所用的注解 : @Service
Controller層所用的注解 : @Controller
pom.xml檔案
<?xml version="1.0" encoding="UTF-8"?>
<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>
<packaging>war</packaging>
<name>SSM_Demo1</name>
<groupId>com.xyc</groupId>
<artifactId>SSM_Demo1</artifactId>
<version>1.0-SNAPSHOT</version>
<build>
<finalName>SSM_Demo1</finalName>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.2</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
<encoding>UTF-8</encoding>
<showWarnings>true</showWarnings>
</configuration>
</plugin>
</plugins>
</pluginManagement>
</build>
<properties>
<spring.version>5.1.8.RELEASE</spring.version>
<slf4j.version>1.6.6</slf4j.version>
<log4j.version>1.2.12</log4j.version>
<mysql.version>8.0.15</mysql.version>
<mybatis.version>3.4.5</mybatis.version>
</properties>
<dependencies>
<!-- spring -->
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.6.8</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</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-test</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>${mysql.version}</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>2.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!-- log start -->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>${log4j.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${slf4j.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>${slf4j.version}</version>
</dependency>
<!-- log end -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>${mybatis.version}</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.3.0</version>
</dependency>
<dependency>
<groupId>c3p0</groupId>
<artifactId>c3p0</artifactId>
<version>0.9.1.2</version>
<type>jar</type>
<scope>compile</scope>
</dependency>
</dependencies>
</project>
applicationContext.xml檔案
<?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.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
<!-- 開啟注解掃描,要掃描的是service和dao層的注解,要忽略web層注解,因為web層讓SpringMVC架構
去管理 -->
<context:component-scan base-package="com.xyc">
<!-- 配置要忽略的注解 -->
<context:exclude-filter type="annotation"
expression="org.springframework.stereotype.Controller"/>
</context:component-scan>
<!-- spring整合Mybatis架構-->
<!-- 配置C3P0的連接配接池對象 -->
<bean id="dataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
<property name="url" value="jdbc:mysql:///mybatis" />
<property name="username" value="root" />
<property name="password" value="991016" />
</bean>
<!-- 配置SqlSession的工廠 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
</bean>
<!-- 配置掃描dao的包 -->
<bean id="mapperScanner" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.xyc.dao"/>
</bean>
</beans>
Web.xml檔案
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4"
xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<!-- Servlet Filters ================================================ -->
<!-- 配置解決中文亂碼的過濾器 -->
<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>
</filter>
<filter-mapping>
<filter-name>characterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!-- 配置前端控制器:伺服器啟動必須加載,需要加載springmvc.xml配置檔案 -->
<servlet>
<servlet-name>dispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- 配置初始化參數,建立完DispatcherServlet對象,加載springmvc.xml配置檔案 -->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springmvc.xml</param-value>
</init-param>
<!-- 伺服器啟動的時候,讓DispatcherServlet對象建立 -->
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcherServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<!-- 配置Spring整合SpringMVC-->
<!-- 配置Spring的監聽器 -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- 配置加載類路徑的配置檔案 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml</param-value>
</context-param>
</web-app>
SpringMVC .xml檔案
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:context="http://www.springframework.org/schema/context"
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.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd">
<!-- 掃描controller的注解,别的不掃描 -->
<context:component-scan base-package="com.xyc">
<context:include-filter type="annotation"
expression="org.springframework.stereotype.Controller"/>
</context:component-scan>
<!-- 配置視圖解析器 -->
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<!-- JSP檔案所在的目錄 -->
<property name="prefix" value="/WEB-INF/pages/" />
<!-- 檔案的字尾名 -->
<property name="suffix" value=".jsp" />
</bean>
<!-- 設定靜态資源不過濾 -->
<mvc:resources location="/css/" mapping="/css/**" />
<mvc:resources location="/images/" mapping="/images/**" />
<mvc:resources location="/js/" mapping="/js/**" />
<!-- 開啟對SpringMVC注解的支援 -->
<mvc:annotation-driven />
</beans>
SqlMapConfig.xml檔案
<?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>
<!-- 配置properties
可以在标簽内部配置連接配接資料庫的資訊,也可以通過屬性引用外部配置檔案資訊
resource屬性: (常用屬性)
用于指定配置檔案的位置,是按照類路徑的寫法來寫的,并且必須存在于類路徑下.
url屬性:
要求按照url的寫法來寫位址
URL: Uniform Resource Locator 統一資源定位符. 它是可以唯一辨別一個資源的位置
寫法: http://localhost:8080/mybatisserver/demo1Servlet
-->
<!-- <properties resource="" url="">
<property name="driver" value="com.mysql.jdbc.Driver"/>
<property name="url" value="jdbc:mysql://localhost:3306/mybatis"/>
<property name="username" value="root"/>
<property name="password" value="991016"/>
</properties>-->
<!-- 使用typeAliases配置别名,他隻能配置domain中類的别名-->
<!-- <typeAliases>
typeAlias用于配置别名,type屬性指定的是實體類的全限定類名,alias屬性指定别名,當制定了别名就不再區分大小寫
<typeAlias type="com.xyc.domain.User" alias="user"></typeAlias>
用于指定要配置别名的包,當指定之後,該包下的實體類都會注冊别名,并且類名就是别名,不再區分大小寫
<package name="com.xyc.domain"/>
</typeAliases>-->
<!-- 配置環境-->
<environments default="mysql">
<!-- mysql的環境配置-->
<environment id="mysql">
<!-- 配置事務類型-->
<transactionManager type="JDBC"/>
<!-- 配置連接配接池-->
<dataSource type="POOLED">
<!-- 配置來連接配接資料庫的基本資訊-->
<property name="driver" value="com.mysql.jdbc.Driver"/>
<property name="url" value="jdbc:mysql://localhost:3306/mybatis"/>
<property name="username" value="root"/>
<property name="password" value="991016"/>
</dataSource>
</environment>
</environments>
<!-- 指定映射配置檔案的位置,映射配置檔案指的是每個dao獨立的配置檔案
如果是用注解來配置的話,此處應該使用class屬性指定注解的dao全限定類名,并在
-->
<mappers>
<mapper resource="com/xyc/dao/IUserDao.xml" />
<!-- package标簽是用于指定dao接口所在的包 ,制定之後就不用寫mapper以及resource和class了-->
</mappers>
</configuration>
Log4j.properties檔案
### direct log messages to stdout ###
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d{ABSOLUTE} %5p %c{1}:%L - %m%n
### root logger option ###
log4j.rootLogger=warn, stdout
### Hibernate logging options ###
log4j.logger.net.sf.hibernate=info
### log JDBC bind parameters ###
log4j.logger.net.sf.hibernate.type=info
### log PreparedStatement cache activity ###
log4j.logger.net.sf.hibernate.ps.PreparedStatementCache=info