第四十四章:单一(伪分布式)架构:SSM整合02

单一(伪分布式)架构之使用Maven建立各个工程之间的依赖、继承、聚合关系
SSM jar包依赖统一管理
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>
  
  <!-- 声明properties对依赖版本进行统一管理 -->
    <properties>
        <spring.version>4.0.0.RELEASE</spring.version>
    </properties>
  <!-- 依赖信息的统一管理 -->
<dependencyManagement>
    <dependencies>
        <!-- Spring依赖 -->
        <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辅助依赖 -->
        <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>

        <!-- 数据库相关依赖 -->
        <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相关依赖 -->
        <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插件依赖 -->
        <dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper</artifactId>
            <version>4.0.0</version>
        </dependency>

        <!-- 日志打印相关 -->
        <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>

        <!-- 文件上传 -->
        <dependency>
            <groupId>commons-fileupload</groupId>
            <artifactId>commons-fileupload</artifactId>
            <version>1.3.1</version>
        </dependency>

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

        <!-- junit依赖 -->
        <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>

建库建表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相关
MyBatis配置文件

文件名: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>

在这里插入图片描述
创建MyBatis逆向工程
在其他工程之外创建另外一个工程
在这里插入图片描述

pom.xml设定

<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>
  
  <!-- 这个依赖是为了避免生成Mapper接口后报错,不影响资源生成过程 -->
	<dependencies>
	    <dependency>
	        <groupId>org.mybatis</groupId>
	        <artifactId>mybatis</artifactId>
	        <version>3.2.8</version>
	    </dependency>
	</dependencies>
	
	<!-- 配置逆向工程的Maven插件 -->
	<build>
	    <!-- plugins:构建过程中用到的插件 -->
	    <plugins>
	        <!-- plugin:具体插件 -->
	        <plugin>
	            <!-- MyBatis逆向工程插件坐标 -->
	            <groupId>org.mybatis.generator</groupId>
	            <artifactId>mybatis-generator-maven-plugin</artifactId>
	            <version>1.3.0</version>
	
	            <!-- 插件工作过程中用到的依赖 -->
	            <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>

逆向工程配置文件: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>
			<!-- 是否去除自动生成的注释 true:是;false:否 -->
			<property name="suppressAllComments" value="true" />
		</commentGenerator>

		<!--数据库连接的信息:驱动类、连接地址、用户名、密码 -->
		<jdbcConnection driverClass="com.mysql.jdbc.Driver"
			connectionURL="jdbc:mysql://localhost:3306/atcrowdfunding" userId="root"
			password="root">
		</jdbcConnection>

		<!-- 默认false,把JDBC DECIMAL 和 NUMERIC 类型解析为 Integer,为 true时把JDBC DECIMAL 
			和 NUMERIC 类型解析为java.math.BigDecimal -->
		<javaTypeResolver>
			<property name="forceBigDecimals" value="false" />
		</javaTypeResolver>

		<!-- targetProject:生成Entity类的路径 -->
		<javaModelGenerator targetProject=".\src\main\java"
			targetPackage="com.entity">
			<!-- enableSubPackages:是否让schema作为包的后缀 -->
			<property name="enableSubPackages" value="false" />
			<!-- 从数据库返回的值被清理前后的空格 -->
			<property name="trimStrings" value="true" />
		</javaModelGenerator>

		<!-- targetProject:XxxMapper.xml映射文件生成的路径 -->
		<sqlMapGenerator targetProject=".\src\main\java"
			targetPackage="com.component.mapper">
			<!-- enableSubPackages:是否让schema作为包的后缀 -->
			<property name="enableSubPackages" value="false" />
		</sqlMapGenerator>

		<!-- targetPackage:Mapper接口生成的位置 -->
		<javaClientGenerator type="XMLMAPPER"
			targetProject=".\src\main\java" targetPackage="com.component.mapper">
			<!-- enableSubPackages:是否让schema作为包的后缀 -->
			<property name="enableSubPackages" value="false" />
		</javaClientGenerator>

		<!-- 数据库表名字和我们的entity类对应的映射指定 -->
		<table tableName="t_user" domainObjectName="UserDO" />

	</context>
</generatorConfiguration>

生成资源的Maven命令:mybatis-generator:generate
在这里插入图片描述在这里插入图片描述在这里插入图片描述
资源归位F5刷新项目

在这里插入图片描述

复制文件到其他项目
在这里插入图片描述
在这里插入图片描述
在这里插入图片描述

Spring和MyBatis整合
在common工程加入Spring和MyBatis整合需要的依赖
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项目中加入

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
在这里插入图片描述

<?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">

	<!-- 引入外部属性文件 -->
	<context:property-placeholder location="classpath:jdbc.properties"/>
	<!-- 配置自动扫描的包 -->
	<context:component-scan base-package="com.component.service.impl"/>
	<!-- 配置数据源 -->
	<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="${jdbc.maxActive}" />
		<!-- 配置获取连接等待超时的时间 -->
		<property name="maxWait" value="${jdbc.maxWait}" />
		<!-- 配置间隔多久才进行一次检测,检测需要关闭的空闲连接,单位是毫秒 -->
		<property name="timeBetweenEvictionRunsMillis"
			value="${jdbc.timeBetweenEvictionRunsMillis}" />
		<!-- 配置一个连接在池中最小生存的时间,单位是毫秒 -->
		<property name="minEvictableIdleTimeMillis"
			value="${jdbc.minEvictableIdleTimeMillis}" />
		<property name="testWhileIdle" value="${jdbc.testWhileIdle}" />
	</bean>
	
	<!-- 配置SqlSessionFactoryBean -->
	<!-- SqlSessionFactoryBean实现了FactoryBean接口,所以这里配置的bean返回的对象是SqlSessionFactory的对象 -->
	<!-- SqlSessionFactoryBean将创建SqlSessionFactory对象的繁琐细节进行了封装和屏蔽 -->
	<bean id="sqlSessionFactoryBean" class="org.mybatis.spring.SqlSessionFactoryBean">
		<!-- 装配数据源 -->
		<property name="dataSource" ref="dataSource"/>
		
		<!-- 指定MyBatis配置文件位置 -->
		<property name="configLocation" value="classpath:mybatis-config.xml"/>
		
		<!-- 配置Mapper配置文件路径 -->
		<property name="mapperLocations" value="classpath:mapper/*Mapper.xml"></property>
		
	</bean>
	
	<!-- 为Mapper接口的扫描器指定Mapper接口所在包 -->
	<bean id="mapperScannerConfigurer" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
		<!-- 指定Mapper接口所在的包 -->
		<property name="basePackage" value="com.component.mapper"/>
	</bean>
	
	<!-- 配置声明式事务 -->
	<!-- 配置事务管理器 -->
	<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
		<!-- 装配数据源 -->
		<property name="dataSource" ref="dataSource"/>
	</bean>
	
	<!-- 配置事务切面的切入点表达式 -->
	<aop:config>
		<aop:pointcut expression="execution(* *..*Service.*(..))" id="txPointCut"/>
		<!-- 将切入点表达式和事务通知配置关联起来 -->
		<aop:advisor advice-ref="txAdvice" pointcut-ref="txPointCut"/>
	</aop:config>
	
	<!-- 配置事务通知属性 -->
	<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属性:指定事务回滚的异常 -->
			<!--propagation属性:事务的传播行为 -->
			<!--REQUIRED:当前方法必须运行在事务中,但如果当前线程上已经开启了事务,则在当前事务中运行 -->
			<!--REQUIRES_NEW:当前方法必须运行在事务中,而且一定要开启一个新事务,在自己的事务中运行。避免在共用事务时其他方法操作失败导致当前方法回滚。 -->
			<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>

测试类

@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);
	}

}

将spring-tx.xml,jdbc.properties文件放到测试src/test/resources下
如果出现下列错误

在这里插入图片描述
发现报错add添加junit.jar和spring-test
在这里插入图片描述

或者在ui-manger项目的pom.xml文件中

<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>

如果还有报错
在这里插入图片描述
在common项目的pom.xml中添加

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

在这里插入图片描述

在这里插入图片描述

Spring和SpringMVC整合
创建SpringMVC的配置文件
spring-mvc.xml

在common工程中加入Web开发相关依赖,之前如果添加过就不用再添加了

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

在这里插入图片描述
在ui-manger工程加入Web开发相关依赖

	<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中加入名称空间
在这里插入图片描述
在这里插入图片描述

配置spring-mvc.xml

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

	<!-- 配置自动扫描的包 -->
	<context:component-scan base-package="com.component.handler"/>
	
	<!-- 配置视图解析器 -->
	<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<property name="prefix" value="/WEB-INF/"/>
		<property name="suffix" value=".jsp"/>
	</bean>
	
	<!-- 标配 -->
	<mvc:annotation-driven/>
	
	<!-- DefaultServletHandler[可选]
	计划在web.xml中让DispatcherServlet映射扩展名,所以DefaultServletHandler可以不配置。 -->
	<mvc:default-servlet-handler/>

</beans>

在web.xml中配置
在这里插入图片描述web.xml

<?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>

如果有其他问题可能是jar包下载失败,可以将你的maven仓库删除重新下载,你也可以按alt+F5,选择项目更新,也可能是你的eclipse没有maven配置或者评论下方留言,如果有时间我可以帮你看看

伪静态效果
通过让DispatcherServlet映射*.html实现伪静态。可以将由SpringMVC处理的动态请求从表面看起来像是访问一个HTML静态页面,这样让项目不容易被猜到用什么技术实现的。
给黑客入侵制造障碍。
一定程度上有利于SEO优化:让搜索引擎更容易找到我们的网站。

我自己写好的项目,完整版的SSM整合reverseparent父项目下有子项目,导入带有spring插件的eclipse时,子项目从父项目中导入就即可,注意有spring插件的eclipse要maven配置

我们做个首页展示
首页展示
创建index.jsp
在这里插入图片描述

可能报错,解决方案

在index.jsp中执行转发操作

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

为/index.html地址映射一个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() {
		
		//准备首页要显示的数据……
		
		return "portal/main";
	}

}

经过spring-mvc.xml的视图解析器拼接,我们创建main.jsp

在这里插入图片描述

页面自己写,现在直接
在这里插入图片描述
就可以看到自己的页面了

还可以将原型代码(前端人员写的)加入main.jsp中
但是加上base标签

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

注意点1:端口号和contextPath之间不要再加“/”。
注意点2:contextPath后面要加“/”。

在这里插入图片描述
样式加一下
在这里插入图片描述

猜你喜欢

转载自blog.csdn.net/java_wxid/article/details/84943497