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Docker容器中掛載NFS共享目錄

SSM整合

1.資料庫環境

建立一個存放書籍資料的資料庫表

CREATE DATABASE `ssmbuild`;

USE `ssmbuild`;

DROP TABLE IF EXISTS `books`;

CREATE TABLE `books` (
`bookID` INT(10) NOT NULL AUTO_INCREMENT COMMENT '書id',
`bookName` VARCHAR(100) NOT NULL COMMENT '書名',
`bookCounts` INT(11) NOT NULL COMMENT '數量',
`detail` VARCHAR(200) NOT NULL COMMENT '描述',
KEY `bookID` (`bookID`)
) ENGINE=INNODB DEFAULT CHARSET=utf8

INSERT  INTO `books`(`bookID`,`bookName`,`bookCounts`,`detail`)VALUES
(1,'Java',1,'從入門到放棄'),
(2,'MySQL',10,'從刪庫到跑路'),
(3,'Linux',5,'從進門到進牢');

2.基本環境搭建

1、新建一Maven專案!ssmbuild , 新增web的支援

2、匯入相關的pom依賴!

<dependencies>
   <!--Junit-->
   <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
       <version>4.12</version>
   </dependency>
   <!--資料庫驅動-->
   <dependency>
       <groupId>mysql</groupId>
       <artifactId>mysql-connector-java</artifactId>
       <version>5.1.47</version>
   </dependency>
   <!-- 資料庫連線池 -->
   <dependency>
       <groupId>com.mchange</groupId>
       <artifactId>c3p0</artifactId>
       <version>0.9.5.2</version>
   </dependency>

   <!--Servlet - JSP -->
   <dependency>
       <groupId>javax.servlet</groupId>
       <artifactId>servlet-api</artifactId>
       <version>2.5</version>
   </dependency>
   <dependency>
       <groupId>javax.servlet.jsp</groupId>
       <artifactId>jsp-api</artifactId>
       <version>2.2</version>
   </dependency>
   <dependency>
       <groupId>javax.servlet</groupId>
       <artifactId>jstl</artifactId>
       <version>1.2</version>
   </dependency>

   <!--Mybatis-->
   <dependency>
       <groupId>org.mybatis</groupId>
       <artifactId>mybatis</artifactId>
       <version>3.5.2</version>
   </dependency>
   <dependency>
       <groupId>org.mybatis</groupId>
       <artifactId>mybatis-spring</artifactId>
       <version>2.0.2</version>
   </dependency>

   <!--Spring-->
   <dependency>
       <groupId>org.springframework</groupId>
       <artifactId>spring-webmvc</artifactId>
       <version>5.1.9.RELEASE</version>
   </dependency>
   <dependency>
       <groupId>org.springframework</groupId>
       <artifactId>spring-jdbc</artifactId>
       <version>5.1.9.RELEASE</version>
   </dependency>
</dependencies>

3、Maven資源過濾設定

<build>
   <resources>
       <resource>
           <directory>src/main/java</directory>
           <includes>
               <include>**/*.properties</include>
               <include>**/*.xml</include>
           </includes>
           <filtering>false</filtering>
       </resource>
       <resource>
           <directory>src/main/resources</directory>
           <includes>
               <include>**/*.properties</include>
               <include>**/*.xml</include>
           </includes>
           <filtering>false</filtering>
       </resource>
   </resources>
</build>

4、建立基本結構和配置框架!

  • com.anti.pojo

  • com.anti.dao

  • com.anti.service

  • com.anti.controller

  • 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>
    
  • applicationContext.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"
          xsi:schemaLocation="http://www.springframework.org/schema/beans
           http://www.springframework.org/schema/beans/spring-beans.xsd">
    
    </beans>
    

3.Mybatis層編寫

1、資料庫配置檔案 database.properties

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/ssmbuild?useSSL=true&useUnicode=true&characterEncoding=utf8
jdbc.username=root
jdbc.password=123456

2、IDEA關聯資料庫

3、編寫MyBatis的核心配置檔案

<?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>
   
   <typeAliases>
       <package name="com.anti.pojo"/>
   </typeAliases>
   <mappers>
       <mapper resource="com/anti/dao/BookMapper.xml"/>
   </mappers>

</configuration>

4、編寫資料庫對應的實體類 com.anti.pojo.Books

使用lombok外掛!

package com.kuang.pojo;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;

@Data
@AllArgsConstructor
@NoArgsConstructor
public class Books {
   
   private int bookID;
   private String bookName;
   private int bookCounts;
   private String detail;
   
}

5、編寫Dao層的 Mapper介面!

package com.kuang.dao;

import com.kuang.pojo.Books;
import java.util.List;

public interface BookMapper {

   //增加一個Book
   int addBook(Books book);

   //根據id刪除一個Book
   int deleteBookById(int id);

   //更新Book
   int updateBook(Books books);

   //根據id查詢,返回一個Book
   Books queryBookById(int id);

   //查詢全部Book,返回list集合
   List<Books> queryAllBook();

}

6、編寫介面對應的 Mapper.xml 檔案。需要匯入MyBatis的包;

<?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="com.kuang.dao.BookMapper">

   <!--增加一個Book-->
   <insert id="addBook" parameterType="Books">
      insert into ssmbuild.books(bookName,bookCounts,detail)
      values (#{bookName}, #{bookCounts}, #{detail})
   </insert>

   <!--根據id刪除一個Book-->
   <delete id="deleteBookById" parameterType="int">
      delete from ssmbuild.books where bookID=#{bookID}
   </delete>

   <!--更新Book-->
   <update id="updateBook" parameterType="Books">
      update ssmbuild.books
      set bookName = #{bookName},bookCounts = #{bookCounts},detail = #{detail}
      where bookID = #{bookID}
   </update>

   <!--根據id查詢,返回一個Book-->
   <select id="queryBookById" resultType="Books">
      select * from ssmbuild.books
      where bookID = #{bookID}
   </select>

   <!--查詢全部Book-->
   <select id="queryAllBook" resultType="Books">
      SELECT * from ssmbuild.books
   </select>

</mapper>

7、編寫Service層的介面和實現類

介面:

package com.kuang.service;

import com.kuang.pojo.Books;

import java.util.List;

//BookService:底下需要去實現,呼叫dao層
public interface BookService {
   //增加一個Book
   int addBook(Books book);
   //根據id刪除一個Book
   int deleteBookById(int id);
   //更新Book
   int updateBook(Books books);
   //根據id查詢,返回一個Book
   Books queryBookById(int id);
   //查詢全部Book,返回list集合
   List<Books> queryAllBook();
}

實現類:

package com.kuang.service;

import com.kuang.dao.BookMapper;
import com.kuang.pojo.Books;
import java.util.List;

public class BookServiceImpl implements BookService {

   //呼叫dao層的操作,設定一個set介面,方便Spring管理
   private BookMapper bookMapper;

   public void setBookMapper(BookMapper bookMapper) {
       this.bookMapper = bookMapper;
  }
   
   public int addBook(Books book) {
       return bookMapper.addBook(book);
  }
   
   public int deleteBookById(int id) {
       return bookMapper.deleteBookById(id);
  }
   
   public int updateBook(Books books) {
       return bookMapper.updateBook(books);
  }
   
   public Books queryBookById(int id) {
       return bookMapper.queryBookById(id);
  }
   
   public List<Books> queryAllBook() {
       return bookMapper.queryAllBook();
  }
}

OK,到此,底層需求操作編寫完畢!

4.Spring層

1、配置Spring整合MyBatis,我們這裡資料來源使用c3p0連線池;

2、我們去編寫Spring整合Mybatis的相關的配置檔案;spring-dao.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"
      xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans.xsd
       http://www.springframework.org/schema/context
       https://www.springframework.org/schema/context/spring-context.xsd">

   <!-- 配置整合mybatis -->
   <!-- 1.關聯資料庫檔案 -->
   <context:property-placeholder location="classpath:database.properties"/>

   <!-- 2.資料庫連線池 -->
   <!--資料庫連線池
       dbcp 半自動化操作 不能自動連線
       c3p0 自動化操作(自動的載入配置檔案 並且設定到物件裡面)
   -->
   <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
       <!-- 配置連線池屬性 -->
       <property name="driverClass" value="${jdbc.driver}"/>
       <property name="jdbcUrl" value="${jdbc.url}"/>
       <property name="user" value="${jdbc.username}"/>
       <property name="password" value="${jdbc.password}"/>

       <!-- c3p0連線池的私有屬性 -->
       <property name="maxPoolSize" value="30"/>
       <property name="minPoolSize" value="10"/>
       <!-- 關閉連線後不自動commit -->
       <property name="autoCommitOnClose" value="false"/>
       <!-- 獲取連線超時時間 -->
       <property name="checkoutTimeout" value="10000"/>
       <!-- 當獲取連線失敗重試次數 -->
       <property name="acquireRetryAttempts" value="2"/>
   </bean>

   <!-- 3.配置SqlSessionFactory物件 -->
   <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
       <!-- 注入資料庫連線池 -->
       <property name="dataSource" ref="dataSource"/>
       <!-- 配置MyBaties全域性配置檔案:mybatis-config.xml -->
       <property name="configLocation" value="classpath:mybatis-config.xml"/>
   </bean>

   <!-- 4.配置掃描Dao介面包,動態實現Dao介面注入到spring容器中 -->
   <!--解釋 :https://www.cnblogs.com/jpfss/p/7799806.html-->
   <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
       <!-- 注入sqlSessionFactory -->
       <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
       <!-- 給出需要掃描Dao介面包 -->
       <property name="basePackage" value="com.kuang.dao"/>
   </bean>

</beans>

3、Spring整合service層

<?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"
      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">

   <!-- 掃描service相關的bean -->
   <context:component-scan base-package="com.kuang.service" />

   <!--BookServiceImpl注入到IOC容器中-->
   <bean id="BookServiceImpl" class="com.kuang.service.BookServiceImpl">
       <property name="bookMapper" ref="bookMapper"/>
   </bean>

   <!-- 配置事務管理器 -->
   <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
       <!-- 注入資料庫連線池 -->
       <property name="dataSource" ref="dataSource" />
   </bean>

</beans>

Spring層搞定!再次理解一下,Spring就是一個大雜燴,一個容器!對吧!

5.SpringMVC層

1、web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
        version="4.0">

   <!--DispatcherServlet-->
   <servlet>
       <servlet-name>DispatcherServlet</servlet-name>
       <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
       <init-param>
           <param-name>contextConfigLocation</param-name>
           <!--一定要注意:我們這裡載入的是總的配置檔案,之前被這裡坑了!-->  
           <param-value>classpath:applicationContext.xml</param-value>
       </init-param>
       <load-on-startup>1</load-on-startup>
   </servlet>
   <servlet-mapping>
       <servlet-name>DispatcherServlet</servlet-name>
       <url-pattern>/</url-pattern>
   </servlet-mapping>

   <!--encodingFilter-->
   <filter>
       <filter-name>encodingFilter</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>encodingFilter</filter-name>
       <url-pattern>/*</url-pattern>
   </filter-mapping>
   
   <!--Session過期時間-->
   <session-config>
       <session-timeout>15</session-timeout>
   </session-config>
   
</web-app>

2、spring-mvc.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: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/context
   http://www.springframework.org/schema/context/spring-context.xsd
   http://www.springframework.org/schema/mvc
   https://www.springframework.org/schema/mvc/spring-mvc.xsd">

   <!-- 配置SpringMVC -->
   <!-- 1.開啟SpringMVC註解驅動 -->
   <mvc:annotation-driven />
   <!-- 2.靜態資源預設servlet配置-->
   <mvc:default-servlet-handler/>

   <!-- 3.配置jsp 顯示ViewResolver檢視解析器 -->
   <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
       <property name="viewClass" value="org.springframework.web.servlet.view.JstlView" />
       <property name="prefix" value="/WEB-INF/jsp/" />
       <property name="suffix" value=".jsp" />
   </bean>

   <!-- 4.掃描web相關的bean -->
   <context:component-scan base-package="com.kuang.controller" />

</beans>

3、Spring配置整合檔案,applicationContext.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"
      xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans.xsd">

   <import resource="spring-dao.xml"/>
   <import resource="spring-service.xml"/>
   <import resource="spring-mvc.xml"/>
   
</beans>

配置檔案,暫時結束!Controller 和 檢視層編寫

1、BookController 類編寫 , 方法一:查詢全部書籍

@Controller
@RequestMapping("/book")
public class BookController {

   @Autowired
   @Qualifier("BookServiceImpl")
   private BookService bookService;

   @RequestMapping("/allBook")
   public String list(Model model) {
       List<Books> list = bookService.queryAllBook();
       model.addAttribute("list", list);
       return "allBook";
  }
}