ssm專案整合步驟
第一步:整合dao層
mybatis 和 spring ,通過 spring 管理 mapper 介面。
使用 mapper 的掃描器自動掃描 mapper 介面 在spring中進行註冊。
MConfig.xml
<?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 >
<!--全域性setting配置,根據需要新增-->
<settings>
<!-- <setting name="logImpl" value="LOG4J"/>-->
<setting name="logImpl" value="LOG4J"/>
<!--設定延遲載入-->
<!--<setting name="lazyLoadingEnabled" value="true"/>-->
<!--<setting name="aggressiveLazyLoading" value="false"/>-->
<!--設定二級快取-->
<setting name="cacheEnabled" value="true"/>
</settings>
<!--配置別名 -->
<typeAliases>
<!--批量掃描-->
<package name="com.demo.ssm.po"/>
</typeAliases>
<!--載入對映檔案-->
<mappers>
<!--<mapper resource="sqlmap/user.xml"/>-->
<!--載入單個對映檔案 resource從類路徑開 url跟路徑-->
<!--spring 整合後,使用mapper掃描器,不需要配置-->
<!-- <mapper resource="mapper/User.xml"/> -->
<package name="com.demo.ssm.mapper"/>
</mappers>
</configuration>
applicationContext-dao.xml
配置資料來源
配置sqlSessionFactory
配置mapper掃描器
<?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:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsd"
>
<!--載入配置檔案-->
<context:property-placeholder location="db.properties"/>
<!--配置資料來源-->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<!-- 指定連線資料庫的驅動-->
<property name="driverClass" value="${jdbc.driver}"/>
<!-- 指定連線資料庫的URL-->
<property name="jdbcUrl" value="${jdbc.url}"/>
<!-- 指定連線資料庫的使用者名稱-->
<property name="user" value="${jdbc.username}"/>
<!-- 指定連線資料庫的密碼-->
<property name="password" value="${jdbc.password}"/>
</bean>
<!--配置sqlSessionFactory-->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<!--載入mybatis的配置檔案-->
<property name="configLocation" value="mybatis/MConfig.xml" />
<property name="dataSource" ref="dataSource"/>
</bean>
<!--mapper 配置
根據mapper介面生產mapper物件
-->
<!--此方法需要針對每一個mapper配置,麻煩。-->
<!--<bean id="userMapper" class="org.mybatis.spring.mapper.MapperFactoryBean">-->
<!--<!–mapperInterface 指定mapper介面–>-->
<!--<property name="mapperInterface" value="com.demo.mybatis.mapper.UserMapper"/>-->
<!--<property name="sqlSessionFactory" ref="sqlSessionFactory"/>-->
<!--</bean>-->
<!--mapper批量掃描,從mapper包中掃描出mapper介面,自動建立代理物件並且在spring容器中註冊-->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<!--指定掃描的包名-->
<!--使用掃描需要遵循一下規範:
mapper.xml與mapper.java檔名稱一致,並在同個目錄下
-->
<!--自動掃描出來的mapper的bean的id為mapper的類名(首字母小寫)-->
<!--如果要掃描多個包,用半形逗號分隔包名-->
<property name="basePackage" value="com.demo.ssm.mapper"/>
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
</bean>
</beans>
逆向工程生產po類mapper(單表CRUD)
mybatis-generator.xml
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE generatorConfiguration
PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
"http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">
<generatorConfiguration>
<context id="testDb">
<!--資料庫連線的資訊:驅動類,連線地址,使用者名稱,密碼-->
<jdbcConnection driverClass="com.mysql.jdbc.Driver" connectionURL="jdbc:mysql://localhost:3306/mdb" userId="root" password="root"></jdbcConnection>
<!--
<jdbcConnection driverClass="oracle" connectionURL="jdbc:oracle:thin:@127.0.0.1:1521:mdb" userId="root" password="root"></jdbcConnection>
-->
<!--生成po類的位置-->
<javaModelGenerator targetPackage="com.demo.ssm.po" targetProject=".\src\main\java"></javaModelGenerator>
<!--mapper檔案位置-->
<sqlMapGenerator targetPackage="com.demo.ssm.mapper" targetProject=".\src\main\java"></sqlMapGenerator>
<!--mapper介面位置-->
<javaClientGenerator type="XMLMAPPER" targetPackage="com.demo.ssm.mapper" targetProject=".\src\main\java"></javaClientGenerator>
<!--指定資料庫表-->
<table tableName="item"></table>
<table tableName="user"></table>
<table tableName="orderdetail"></table>
<table tableName="orders"></table>
</context>
</generatorConfiguration>
Generator.java
public class Generator {
public void generator() throws IOException, XMLParserException, InvalidConfigurationException, SQLException, InterruptedException {
List<String> warnings = new ArrayList<String>();
boolean overwrite = true;
File configFile = new File("src/main/resources/generator/generatorConfig.xml");
ConfigurationParser parser = new ConfigurationParser(warnings);
Configuration configuration = parser.parseConfiguration(configFile);
DefaultShellCallback callback = new DefaultShellCallback(overwrite);
MyBatisGenerator myBatisGenerator = new MyBatisGenerator(configuration,callback,warnings);
myBatisGenerator.generate(null);
}
public static void main(String[] args) throws InterruptedException, SQLException, InvalidConfigurationException, XMLParserException, IOException {
Generator generator = new Generator();
generator.generator();
}
}
第二步:整合service層
通過 spring 管理 service 介面。
使用配置方式將 service 介面配置在 spring 配置檔案中。
實現事務控制
定義service介面
public interface ItemsService {
//商品查詢列表
List<ItemsCustom> findItemsList(ItemsQueryVo itemsQueryVo);
}
實現service介面
public class ItemsServiceImpl implements ItemsService {
@Autowired
private ItemsMapperCustom itemsMapperCustom;
public List<ItemsCustom> findItemsList(ItemsQueryVo itemsQueryVo) {
return itemsMapperCustom.findItemsList(itemsQueryVo);
}
}
service配置
applicationContext-service
<?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:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsd"
>
<!--定義商品的service-->
<bean class="com.demo.ssm.service.impl.ItemsServiceImpl">
</bean>
</beans>
service事務宣告
applicationContext-tranaction.xml
<?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:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd"
>
<!--事務管理器-->
<!--對mybatis操作資料庫事務控制,是spring使用jdbc的事務控制類-->
<bean class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<!--資料來源
dataSource在applicationContext-dao.xml中配置
-->
<property name="dataSource" ref="dataSource"></property>
</bean>
<!--通知-->
<tx:advice id="txAdvice" transaction-manager="transactionManager">
<tx:attributes>
<tx:method name="save*" propagation="REQUIRED"/>
<tx:method name="delete*" propagation="REQUIRED"/>
<tx:method name="insert" propagation="REQUIRED"/>
<tx:method name="update*" propagation="REQUIRED"/>
<tx:method name="find*" propagation="SUPPORTS" read-only="true"/>
<tx:method name="get*" propagation="SUPPORTS" read-only="true"/>
<tx:method name="sel*" propagation="SUPPORTS" read-only="true"/>
</tx:attributes>
</tx:advice>
<!--aop-->
<aop:config>
<aop:advisor advice-ref="txAdvice" pointcut="execution(* com.demo.ssm.service.impl.*.*(..))"/>
</aop:config>
</beans>
第三步:整合springmvc
由於 springmvc 是 spring 的模組 , 不需要整合。
建立 springmcv.xml,配置處理器對映器,介面卡,檢視解析器
springmvc.xml
<?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:tx="http://www.springframework.org/schema/tx" xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd"
>
<!--對於註解的handler 可以單個配置
實際開發中建議使用元件掃描
-->
<!-- <bean class="com.demo.ssm.controller.ItemsController3"></bean>-->
<!--可以掃描 controller service-->
<context:component-scan base-package="com.demo.ssm.controller"></context:component-scan>
<!--處理器介面卡
多個對映器可以並存
所有的處理器介面卡都實現HandlerAdapter
-->
<!--註解對映器-->
<!--spring 3.1之前 使用 org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping 註解對映器-->
<!--spring 3.1 之後 使用 org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping 註解對映器-->
<!--<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping"></bean>-->
<!--介面卡-->
<!--spring 3.1 之前 使用 org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter 註解介面卡-->
<!--spring 3.1 之後 使用 org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter 註解介面卡-->
<!--<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter"></bean>-->
<!--使用 mvc:annotation-drien 可以代替上面註解對映器和註解介面卡的配置
mvc:annotation-driven 預設載入了很多繫結方法 推薦使用
-->
<mvc:annotation-driven></mvc:annotation-driven>
<!--試圖解析器-->
<!--解析jsp檢視,預設使用jstl標籤,classpath需要jatl包-->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/"/>
<property name="suffix" value=".jsp"/>
</bean>
</beans>
配置前端控制器
web.xml
<!DOCTYPE web-app PUBLIC
"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd" >
<web-app>
<display-name>Archetype Created Web Application</display-name>
<!--載入spring容器-->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring/applicationContext-*.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!--通過contextConfigLocation配置springmvc載入配置檔案(配置處理對映器,介面卡)
如果不配置,預設載入/WEB_INF/servlet名稱-servlet.xml(srpingmvc-servlet.xml)
-->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springmvc.xml</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<!--
第一種: *.action 訪問以.action結尾由DispatcherServlet進行解析
第二種: / 所有訪問的地址都由DispatcherServlet進行解析,對靜態檔案的解析需要配置,
使用此方法可以實現restful風格url
第三種: /* 錯誤配置方法,轉發jsp頁面仍由DispatcherServlet解析
-->
<url-pattern>*.action</url-pattern>
</servlet-mapping>
</web-app>
編寫Controller(handler)
ItemsController.java
@Controller
public class ItemsController {
@Autowired
private ItemsService itemsService;
//商品查詢列表
@RequestMapping("/queryItems")
public ModelAndView queryItems(){
List<ItemsCustom> list = itemsService.findItemsList(null);
;
//返回modelAndView
ModelAndView modelAndView = new ModelAndView();
//相當於request的setAttr,在jsp通過itemlist獲取資料
modelAndView.addObject("itemsList",list);
//指定試圖
//試圖解析器中配置了字首和字尾
// modelAndView.setViewName("WEB-INF/jsp/itemsList.jsp");
modelAndView.setViewName("itemsList");
return modelAndView;
編寫jsp
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@page isELIgnored="false" pageEncoding="UTF-8" %>
<%--
Created by IntelliJ IDEA.
User: v7
Date: 2016/8/13
Time: 12:18
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>ItemsList</title>
</head>
<body>
<from action="${pageContext.request.contextPath }/item/queryItem.action" method="post">
查詢條件:
<table width="100%" border="1">
<tr>
<td><input type="submit" value="查詢"/></td>
</tr>
</table>
商品列表:
<table width="100%" border="1">
<tr>
<th>商品名稱</th>
<th>商品價格</th>
<th>生產日期</th>
<th>商品描述</th>
<th>操作</th>
</tr>
<c:forEach items="${itemsList}" var="item">
<tr>
<td>${item.name}</td>
<td>${item.price}</td>
<td>${item.createTime}</td>
<td>${item.detail}</td>
<td><a href="${pageContext.request.contextPath}/item/editItem.action?id=${item.id}">修改</a></td>
</tr>
</c:forEach>
</table>
</from>
</body>
</html>
載入spring容器
將mapper,service,controller載入到spring中
建議使用萬用字元方法載入spring檔案.
在web.xml中,新增spring容器
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring/applicationContext-*.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
所需要的jar包:
資料庫驅動包:mysql-5.1
mybatis 的jar包
mybatis 和 spring 整合包
log4j 包
資料庫連線池包 c3p0
spring 所以jar包
jstl包
maven pom.xml
<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>com.demo</groupId>
<artifactId>ssm</artifactId>
<packaging>war</packaging>
<version>1.0-SNAPSHOT</version>
<name>ssm Maven Webapp</name>
<url>http://maven.apache.org</url>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.38</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>4.3.2.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.mybatis/mybatis-spring -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.2.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.mybatis/mybatis -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.2.8</version>
</dependency>
<!-- https://mvnrepository.com/artifact/junit/junit -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
</dependency>
<!-- https://mvnrepository.com/artifact/log4j/log4j -->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
<!-- 新增Spring-core包 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>4.3.2.RELEASE</version>
</dependency>
<!-- 新增spring-context包 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>4.3.2.RELEASE</version>
</dependency>
<!-- 新增spring-tx包 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>4.3.2.RELEASE</version>
</dependency>
<!-- 新增spring-jdbc包 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>4.3.2.RELEASE</version>
</dependency>
<!-- 為了方便進行單元測試,新增spring-test包 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>4.3.2.RELEASE</version>
</dependency>
<!--新增spring-web包 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>4.3.2.RELEASE</version>
</dependency>
<!--新增aspectjweaver包 -->
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.8.5</version>
</dependency>
<!-- https://mvnrepository.com/artifact/c3p0/c3p0 -->
<dependency>
<groupId>c3p0</groupId>
<artifactId>c3p0</artifactId>
<version>0.9.1.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.mybatis.generator/mybatis-generator-core -->
<dependency>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-core</artifactId>
<version>1.3.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/javax.servlet/jstl -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
</dependencies>
<build>
<finalName>ssm</finalName>
<plugins>
<plugin>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-maven-plugin</artifactId>
<version>1.3.2</version>
<configuration>
<verbose>true</verbose>
<overwrite>true</overwrite>
</configuration>
</plugin>
</plugins>
<resources>
<resource>
<directory>
src/main/resources
</directory>
</resource>
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.xml</include>
</includes>
</resource>
</resources>
</build>
</project>
db.properties
jdbc.driver = com.mysql.jdbc.Driver
jdbc.url = jdbc:mysql://localhost:3306/mdb?charaterEncoding='UTF-8'&useSSL=true
jdbc.username = root
jdbc.password = root
log4j.properties
# Global logging configuration
#在開發環境下級別設定成DEBUG,生成環境設定成info或error
log4j.rootLogger = debug,stdout
# MyBatis logging configuration...
log4j.logger.test=TRACE
### 輸出資訊到控制擡 ###
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=%5p [%t] - %m%n