1. 程式人生 > >第四十四章:單一(偽分散式)架構:SSM整合02

第四十四章:單一(偽分散式)架構:SSM整合02

單一(偽分散式)架構之使用Maven建立各個工程之間的依賴、繼承、聚合關係
SSM jar包依賴統一管理
工程:parent
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/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com</groupId>
  <artifactId>parent</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <packaging>pom</packaging>
  <modules>
  	<module>common</module>
  	<module>ui-manager</module>
  	<module>component</module>
  </modules>
  
  <!-- 宣告properties對依賴版本進行統一管理 -->
    <properties>
        <spring.version>4.0.0.RELEASE</spring.version>
    </properties>
  <!-- 依賴資訊的統一管理 -->
<dependencyManagement>
    <dependencies>
        <!-- Spring依賴 -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-orm</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <!-- Spring輔助依賴 -->
        <dependency>
            <groupId>cglib</groupId>
            <artifactId>cglib</artifactId>
            <version>2.2</version>
        </dependency>
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjweaver</artifactId>
            <version>1.6.8</version>
        </dependency>
        <dependency>
            <groupId>org.codehaus.jackson</groupId>
            <artifactId>jackson-mapper-asl</artifactId>
            <version>1.9.2</version>
        </dependency>

        <!-- 資料庫相關依賴 -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.37</version>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.0.31</version>
        </dependency>
        <!-- Mybatis相關依賴 -->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.2.8</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>1.2.2</version>
        </dependency>

        <!-- Mybatis的PageHelper外掛依賴 -->
        <dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper</artifactId>
            <version>4.0.0</version>
        </dependency>

        <!-- 日誌列印相關 -->
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.17</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>1.7.7</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-log4j12</artifactId>
            <version>1.7.7</version>
        </dependency>

        <!-- 檔案上傳 -->
        <dependency>
            <groupId>commons-fileupload</groupId>
            <artifactId>commons-fileupload</artifactId>
            <version>1.3.1</version>
        </dependency>

        <!-- JSTL標籤 -->
        <dependency>
            <groupId>jstl</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>

        <!-- junit依賴 -->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
            <scope>test</scope>
        </dependency>

        <!-- servlet-api -->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>servlet-api</artifactId>
            <version>2.5</version>
            <scope>provided</scope>
        </dependency>

        <!-- jsp-api -->
        <dependency>
            <groupId>javax.servlet.jsp</groupId>
            <artifactId>jsp-api</artifactId>
            <version>2.1.3-b06</version>
            <scope>provided</scope>
        </dependency>
    </dependencies>
</dependencyManagement>
</project>

建庫建表SQL

CREATE DATABASE IF NOT EXISTS `atcrowdfunding` CHARACTER SET utf8 COLLATE utf8_bin;
USE atcrowdfunding;
create table IF NOT EXISTS t_user
(
   id                   int not null auto_increment,
   loginacct            varchar(255) not null,
   userpswd             char(32) not null,
   username             varchar(255) not null,
   email                varchar(255) not null,
   createtime           char(19),
   primary key (id)
);

Mybatis相關
MyBatis配置檔案

檔名:mybatis-config.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>
</configuration>

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建立MyBatis逆向工程
在其他工程之外建立另外一個工程
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pom.xml設定

<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/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com</groupId>
  <artifactId>reverse</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  
  <!-- 這個依賴是為了避免生成Mapper介面後報錯,不影響資源生成過程 -->
	<dependencies>
	    <dependency>
	        <groupId>org.mybatis</groupId>
	        <artifactId>mybatis</artifactId>
	        <version>3.2.8</version>
	    </dependency>
	</dependencies>
	
	<!-- 配置逆向工程的Maven外掛 -->
	<build>
	    <!-- plugins:構建過程中用到的外掛 -->
	    <plugins>
	        <!-- plugin:具體外掛 -->
	        <plugin>
	            <!-- MyBatis逆向工程外掛座標 -->
	            <groupId>org.mybatis.generator</groupId>
	            <artifactId>mybatis-generator-maven-plugin</artifactId>
	            <version>1.3.0</version>
	
	            <!-- 外掛工作過程中用到的依賴 -->
	            <dependencies>
	                <dependency>
	                    <groupId>org.mybatis.generator</groupId>
	                    <artifactId>mybatis-generator-core</artifactId>
	                    <version>1.3.2</version>
	                </dependency>
	                <dependency>
	                    <groupId>com.mchange</groupId>
	                    <artifactId>c3p0</artifactId>
	                    <version>0.9.2</version>
	                </dependency>
	                <dependency>
	                    <groupId>mysql</groupId>
	                    <artifactId>mysql-connector-java</artifactId>
	                    <version>5.1.8</version>
	                </dependency>
	            </dependencies>
	        </plugin>
	    </plugins>
	</build>
  
</project>

逆向工程配置檔案:generatorConfig.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="tables" targetRuntime="MyBatis3Simple" defaultModelType="flat">
		<commentGenerator>
			<!-- 是否去除自動生成的註釋 true:是;false:否 -->
			<property name="suppressAllComments" value="true" />
		</commentGenerator>

		<!--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/atcrowdfunding" userId="root"
			password="root">
		</jdbcConnection>

		<!-- 預設false,把JDBC DECIMAL 和 NUMERIC 型別解析為 Integer,為 true時把JDBC DECIMAL 
			和 NUMERIC 型別解析為java.math.BigDecimal -->
		<javaTypeResolver>
			<property name="forceBigDecimals" value="false" />
		</javaTypeResolver>

		<!-- targetProject:生成Entity類的路徑 -->
		<javaModelGenerator targetProject=".\src\main\java"
			targetPackage="com.entity">
			<!-- enableSubPackages:是否讓schema作為包的字尾 -->
			<property name="enableSubPackages" value="false" />
			<!-- 從資料庫返回的值被清理前後的空格 -->
			<property name="trimStrings" value="true" />
		</javaModelGenerator>

		<!-- targetProject:XxxMapper.xml對映檔案生成的路徑 -->
		<sqlMapGenerator targetProject=".\src\main\java"
			targetPackage="com.component.mapper">
			<!-- enableSubPackages:是否讓schema作為包的字尾 -->
			<property name="enableSubPackages" value="false" />
		</sqlMapGenerator>

		<!-- targetPackage:Mapper介面生成的位置 -->
		<javaClientGenerator type="XMLMAPPER"
			targetProject=".\src\main\java" targetPackage="com.component.mapper">
			<!-- enableSubPackages:是否讓schema作為包的字尾 -->
			<property name="enableSubPackages" value="false" />
		</javaClientGenerator>

		<!-- 資料庫表名字和我們的entity類對應的對映指定 -->
		<table tableName="t_user" domainObjectName="UserDO" />

	</context>
</generatorConfiguration>

生成資源的Maven命令:mybatis-generator:generate
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資源歸位F5重新整理專案

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複製檔案到其他專案
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Spring和MyBatis整合
在common工程加入Spring和MyBatis整合需要的依賴
pom.xml

<dependencies>
	<dependency>
		<groupId>org.springframework</groupId>
		<artifactId>spring-orm</artifactId>
	</dependency>
	<dependency>
		<groupId>cglib</groupId>
		<artifactId>cglib</artifactId>
	</dependency>
	<dependency>
		<groupId>org.aspectj</groupId>
		<artifactId>aspectjweaver</artifactId>
	</dependency>
	<dependency>
		<groupId>org.codehaus.jackson</groupId>
		<artifactId>jackson-mapper-asl</artifactId>
	</dependency>
	<dependency>
		<groupId>mysql</groupId>
		<artifactId>mysql-connector-java</artifactId>
	</dependency>
	<dependency>
		<groupId>com.alibaba</groupId>
		<artifactId>druid</artifactId>
	</dependency>
	<dependency>
		<groupId>org.mybatis</groupId>
		<artifactId>mybatis</artifactId>
	</dependency>
	<dependency>
		<groupId>org.mybatis</groupId>
		<artifactId>mybatis-spring</artifactId>
	</dependency>
	<dependency>
		<groupId>log4j</groupId>
		<artifactId>log4j</artifactId>
	</dependency>
	<dependency>
		<groupId>org.slf4j</groupId>
		<artifactId>slf4j-api</artifactId>
	</dependency>
	<dependency>
		<groupId>org.slf4j</groupId>
		<artifactId>slf4j-log4j12</artifactId>
	</dependency>
</dependencies>

在ui-manger專案中加入

jdbc.properties

jdbc.user=root
jdbc.password=root
jdbc.url=jdbc:mysql://localhost:3306/atcrowdfunding?rewriteBatchedStatements=true&useUnicode=true&characterEncoding=utf8
jdbc.driver=com.mysql.jdbc.Driver
jdbc.initialSize=20
jdbc.minIdle=10
jdbc.maxActive=50
jdbc.maxWait=10000
jdbc.timeBetweenEvictionRunsMillis=60000
jdbc.minEvictableIdleTimeMillis=300000
jdbc.testWhileIdle=true

log4j.properties

# For JBoss: Avoid to setup Log4J outside $JBOSS_HOME/server/default/deploy/log4j.xml!
# For all other servers: Comment out the Log4J listener in web.xml to activate Log4J.
# DEBUG < INFO < WARN < ERROR < FATAL
log4j.rootLogger=DEBUG, a, logfile

log4j.appender.a=org.apache.log4j.ConsoleAppender
log4j.appender.a.layout=org.apache.log4j.PatternLayout
log4j.appender.a.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss,S} %-5p [%c] %l - %m%n

log4j.appender.logfile=org.apache.log4j.RollingFileAppender
log4j.appender.logfile.File=D:/atcrowdfunding.log
log4j.appender.logfile.MaxFileSize=512KB
# Keep three backup files.
log4j.appender.logfile.MaxBackupIndex=3 
# Pattern to output: date priority [category] - message
log4j.appender.logfile.layout=org.apache.log4j.PatternLayout
log4j.appender.logfile.layout.ConversionPattern=%d %p [%c] - %m%n

spring-tx.xml
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<?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.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">

	<!-- 引入外部屬性檔案 -->
	<context:property-placeholder location="classpath:jdbc.properties"/>
	<!-- 配置自動掃描的包 -->
	<context:component-scan base-package="com.component.service.impl"/>
	<!-- 配置資料來源 -->
	<bean id="dataSource"
		class="com.alibaba.druid.pool.DruidDataSource">
		<property name="username" value="${jdbc.user}" />
		<property name="password" value="${jdbc.password}" />
		<property name="url" value="${jdbc.url}" />
		<property name="driverClassName" value="${jdbc.driver}" />
		<!-- 配置初始化大小、最小、最大 -->
		<property name="initialSize" value="${jdbc.initialSize}" />
		<property name="minIdle" value="${jdbc.minIdle}" />
		<property name="maxActive" value="${jdbc.maxActive}" />
		<!-- 配置獲取連線等待超時的時間 -->
		<property name="maxWait" value="${jdbc.maxWait}" />
		<!-- 配置間隔多久才進行一次檢測,檢測需要關閉的空閒連線,單位是毫秒 -->
		<property name="timeBetweenEvictionRunsMillis"
			value="${jdbc.timeBetweenEvictionRunsMillis}" />
		<!-- 配置一個連線在池中最小生存的時間,單位是毫秒 -->
		<property name="minEvictableIdleTimeMillis"
			value="${jdbc.minEvictableIdleTimeMillis}" />
		<property name="testWhileIdle" value="${jdbc.testWhileIdle}" />
	</bean>
	
	<!-- 配置SqlSessionFactoryBean -->
	<!-- SqlSessionFactoryBean實現了FactoryBean介面,所以這裡配置的bean返回的物件是SqlSessionFactory的物件 -->
	<!-- SqlSessionFactoryBean將建立SqlSessionFactory物件的繁瑣細節進行了封裝和遮蔽 -->
	<bean id="sqlSessionFactoryBean" class="org.mybatis.spring.SqlSessionFactoryBean">
		<!-- 裝配資料來源 -->
		<property name="dataSource" ref="dataSource"/>
		
		<!-- 指定MyBatis配置檔案位置 -->
		<property name="configLocation" value="classpath:mybatis-config.xml"/>
		
		<!-- 配置Mapper配置檔案路徑 -->
		<property name="mapperLocations" value="classpath:mapper/*Mapper.xml"></property>
		
	</bean>
	
	<!-- 為Mapper介面的掃描器指定Mapper介面所在包 -->
	<bean id="mapperScannerConfigurer" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
		<!-- 指定Mapper介面所在的包 -->
		<property name="basePackage" value="com.component.mapper"/>
	</bean>
	
	<!-- 配置宣告式事務 -->
	<!-- 配置事務管理器 -->
	<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
		<!-- 裝配資料來源 -->
		<property name="dataSource" ref="dataSource"/>
	</bean>
	
	<!-- 配置事務切面的切入點表示式 -->
	<aop:config>
		<aop:pointcut expression="execution(* *..*Service.*(..))" id="txPointCut"/>
		<!-- 將切入點表示式和事務通知配置關聯起來 -->
		<aop:advisor advice-ref="txAdvice" pointcut-ref="txPointCut"/>
	</aop:config>
	
	<!-- 配置事務通知屬性 -->
	<tx:advice id="txAdvice" transaction-manager="transactionManager">
		<tx:attributes>
			<tx:method name="get*" read-only="true"/>
			<tx:method name="list*" read-only="true"/>
			<tx:method name="count*" read-only="true"/>
			<!--rollback-for屬性:指定事務回滾的異常 -->
			<!--propagation屬性:事務的傳播行為 -->
			<!--REQUIRED:當前方法必須執行在事務中,但如果當前執行緒上已經開啟了事務,則在當前事務中執行 -->
			<!--REQUIRES_NEW:當前方法必須執行在事務中,而且一定要開啟一個新事務,在自己的事務中執行。避免在共用事務時其他方法操作失敗導致當前方法回滾。 -->
			<tx:method name="remove*" rollback-for="java.lang.Exception" propagation="REQUIRES_NEW"/>
			<tx:method name="save*" rollback-for="java.lang.Exception" propagation="REQUIRES_NEW"/>
			<tx:method name="update*" rollback-for="java.lang.Exception" propagation="REQUIRES_NEW"/>
		</tx:attributes>
	</tx:advice>

</beans>

測試類

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations="classpath:spring-tx.xml")
public class AtCrowdfundingTest {
	
	@Autowired
	private DataSource dataSource;
	
	@Test
	public void testDataSource() throws SQLException {
		Connection connection = dataSource.getConnection();
		System.out.println(connection);
	}

}

將spring-tx.xml,jdbc.properties檔案放到測試src/test/resources下
如果出現下列錯誤

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發現報錯add新增junit.jar和spring-test
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或者在ui-manger專案的pom.xml檔案中

<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/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <parent>
    <groupId>com</groupId>
    <artifactId>parent</artifactId>
    <version>0.0.1-SNAPSHOT</version>
  </parent>
  <artifactId>ui-manager</artifactId>
  <packaging>war</packaging>
  <dependencies>
  	<dependency>
  		<groupId>junit</groupId>
  		<artifactId>junit</artifactId>
  	</dependency>
  	<dependency>
  		<groupId>com</groupId>
  		<artifactId>component</artifactId>
  		<version>0.0.1-SNAPSHOT</version>
  	</dependency>

  	<dependency>
  		<groupId>org.springframework</groupId>
  		<artifactId>spring-test</artifactId>
  	</dependency>
  </dependencies>
</project>

如果還有報錯
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在common專案的pom.xml中新增

 <dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-webmvc</artifactId>
</dependency>

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Spring和SpringMVC整合
建立SpringMVC的配置檔案
spring-mvc.xml

在common工程中加入Web開發相關依賴,之前如果新增過就不用再添加了

	<dependency>
		<groupId>org.springframework</groupId>
		<artifactId>spring-webmvc</artifactId>
	</dependency>
	<dependency>
		<groupId>jstl</groupId>
		<artifactId>jstl</artifactId>
	</dependency>

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在ui-manger工程加入Web開發相關依賴

	<dependency>
		<groupId>javax.servlet</groupId>
		<artifactId>servlet-api</artifactId>
		<scope>provided</scope>
	</dependency>

	<dependency>
		<groupId>javax.servlet.jsp</groupId>
		<artifactId>jsp-api</artifactId>
		<scope>provided</scope>
	</dependency>

在spring-mvc.xml中加入名稱空間
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配置spring-mvc.xml

<?xml version="1.0" encoding="UTF-8"?>

	<!-- 配置自動掃描的包 -->
	<context:component-scan base-package="com.component.handler"/>
	
	<!-- 配置檢視解析器 -->
	<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<property name="prefix" value="/WEB-INF/"/>
		<property name="suffix" value=".jsp"/>
	</bean>
	
	<!-- 標配 -->
	<mvc:annotation-driven/>
	
	<!-- DefaultServletHandler[可選]
	計劃在web.xml中讓DispatcherServlet對映副檔名,所以DefaultServletHandler可以不配置。 -->
	<mvc:default-servlet-handler/>

</beans>

在web.xml中配置
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<?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" version="2.5">
  <display-name>ui-manager</display-name>
<!-- needed for ContextLoaderListener -->
<context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:spring-tx.xml</param-value>
</context-param>

<!-- Bootstraps the root web application context before servlet initialization -->
<listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

<!-- DispatcherServlet        -->
<!-- The front controller of this Spring Web application, responsible for handling all application requests -->
<servlet>
    <servlet-name>springDispatcherServlet</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:spring-mvc.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
</servlet>

<!-- Map all requests to the DispatcherServlet for handling -->
<servlet-mapping>
    <servlet-name>springDispatcherServlet</servlet-name>
    <url-pattern>*.html</url-pattern>
</servlet-mapping>

<!-- CharacterEncodingFilter -->
<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>
    <init-param>
        <param-name>forceEncoding</param-name>
        <param-value>true</param-value>
    </init-param>
</filter>
<filter-mapping>
    <filter-name>CharacterEncodingFilter</filter-name>
    <url-pattern>/*</url-pattern>
</filter-mapping>

<!-- HiddenHttpMethodFilter -->
<filter>
    <filter-name>HiddenHttpMethodFilter</filter-name>
    <filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class>
</filter>
<filter-mapping>
    <filter-name>HiddenHttpMethodFilter</filter-name>
    <url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>

如果有其他問題可能是jar包下載失敗,可以將你的maven倉庫刪除重新下載,你也可以按alt+F5,選擇專案更新,也可能是你的eclipse沒有maven配置或者評論下方留言,如果有時間我可以幫你看看

偽靜態效果
通過讓DispatcherServlet對映*.html實現偽靜態。可以將由SpringMVC處理的動態請求從表面看起來像是訪問一個HTML靜態頁面,這樣讓專案不容易被猜到用什麼技術實現的。
給黑客入侵製造障礙。
一定程度上有利於SEO優化:讓搜尋引擎更容易找到我們的網站。

我自己寫好的專案,完整版的SSM整合reverseparent父專案下有子專案,匯入帶有spring外掛的eclipse時,子專案從父專案中匯入就即可,注意有spring外掛的eclipse要maven配置

我們做個首頁展示
首頁展示
建立index.jsp
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可能報錯,解決方案

在index.jsp中執行轉發操作

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%
	request.getRequestDispatcher("/index.html").forward(request, response);
%>

為/index.html地址對映一個handler方法

package com.component.handler;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
public class PortalMainHandler {
	
	@RequestMapping("/index")
	public String showIndexPage() {
		
		//準備首頁要顯示的資料……
		
		return "portal/main";
	}

}

經過spring-mvc.xml的檢視解析器拼接,我們建立main.jsp

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頁面自己寫,現在直接
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就可以看到自己的頁面了

還可以將原型程式碼(前端人員寫的)加入main.jsp中
但是加上base標籤

<base href="http://${pageContext.request.serverName }:${pageContext.request.serverPort}${pageContext.request.contextPath}/"/>

注意點1:埠號和contextPath之間不要再加“/”。
注意點2:contextPath後面要加“/”。

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樣式加一下
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