一. ssm整合

1.1 项目创建

1.1.1 创建Maven项目

• 创建一个普通的Maven-web项目,名称为ssm
• 记得勾选上Create from archetype然后选择后缀为maven-archetype-webapp的选项

1.1.2 导入依赖(pom.xml)

<dependencies>

    <!--Junit-->

    <dependency>

        <groupId>junit</groupId>

        <artifactId>junit</artifactId>

        <version>4.12</version>

        <scope>test</scope>

    </dependency>

    <!--数据库驱动-->

    <dependency>

        <groupId>mysql</groupId>

        <artifactId>mysql-connector-java</artifactId>

        <version>5.1.47</version>

    </dependency>

    <!--数据库连接池: druid 德鲁伊-->

    <dependency>

        <groupId>com.alibaba</groupId>

        <artifactId>druid</artifactId>

        <version>1.1.16</version>

    </dependency>

    <!--Servlet-->

    <dependency>

        <groupId>javax.servlet</groupId>

        <artifactId>servlet-api</artifactId>

        <version>2.5</version>

    </dependency>

    <!--JSP-->

    <dependency>

        <groupId>javax.servlet</groupId>

        <artifactId>jsp-api</artifactId>

        <version>2.0</version>

    </dependency>

    <!--Jstl-->

    <dependency>

        <groupId>javax.servlet</groupId>

        <artifactId>jstl</artifactId>

        <version>1.2</version>

    </dependency>

    <!--mybatis-->

    <dependency>

        <groupId>org.mybatis</groupId>

        <artifactId>mybatis</artifactId>

        <version>3.5.3</version>

    </dependency>

    <!--mybatis-spring-->

    <dependency>

        <groupId>org.mybatis</groupId>

        <artifactId>mybatis-spring</artifactId>

        <version>2.0.6</version>

    </dependency>

    <!--spring-webmvc-->

    <dependency>

        <groupId>org.springframework</groupId>

        <artifactId>spring-webmvc</artifactId>

        <version>5.3.5</version>

    </dependency>

    <!--spring-jdbc-->

    <dependency>

        <groupId>org.springframework</groupId>

        <artifactId>spring-jdbc</artifactId>

        <version>5.3.5</version>

    </dependency>

    <!--lombok -->

    <dependency>

        <groupId>org.projectlombok</groupId>

        <artifactId>lombok</artifactId>

        <version>1.18.16</version>

        <scope>provided</scope>

    </dependency>

    <!--aspectj weaver-->

    <dependency>

        <groupId>org.aspectj</groupId>

        <artifactId>aspectjweaver</artifactId>

        <version>1.9.6</version>

    </dependency>

    <!--log4j-->

    <dependency>

        <groupId>log4j</groupId>

        <artifactId>log4j</artifactId>

        <version>1.2.17</version>

    </dependency>

</dependencies>

<!--静态资源导出问题-->

<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>

1.1.3 创建项目目录

• src/main/java下创建
  • com.dz.pojo
  • com.dz.dao
  • com.dz.service
  • com.dz.controller
• src/main/resources下创建
  • jdbc.properties (数据库连接配置文件)
  • log4j.properties (日志配置文件)
  • mybatis-config.xml (MyBatis配置文件)
  • applicationContext.xml (Spring配置文件,总)
  • spring-dao.xml (Spring配置文件,子)
  • spring-service.xml (Spring配置文件,子)
  • spring-mvc.xml (Spring配置文件,子)
• src/main/webapp/WEB-INF下
  • 新建jsp目录, 里面存放.jsp文件
  • 已有的web.xml也要进行配置

2.1 配置文件

2.1.1 jdbc.properties

jdbc.driver=com.mysql.jdbc.Driver

jdbc.url=jdbc:mysql://localhost:3306/mybatis_db?useUnicode=true&useSSL=false&characterEncoding=UTF-8

jdbc.username=root

jdbc.password=8031

2.1.2 log4j.properties

# Global logging configuration

log4j.rootLogger=DEBUG, stdout

# MyBatis logging configuration

log4j.logger.org.mybatis.example.BlogMapper=TRACE

# 配置stdout输出到控制台

log4j.appender.stdout=org.apache.log4j.ConsoleAppender

# 配置stdout设置为自定义布局模式

log4j.appender.stdout.layout=org.apache.log4j.PatternLayout

# 配置stdout日志的输出格式  2021-05-01 23:45:26,166  %p日志的优先级 %t线程名  %m日志 %n换行

log4j.appender.stdout.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss,SSS} - %5p [%t] - %m%n

2.1.3 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>

    <!--日志-->

	<!--<settings>

        <setting name="logImpl" value="STDOUT_LOGGING"/>

    </settings>-->

    <!--实体类别名-->

    <typeAliases>

        <package name="com.dz.pojo"/>

    </typeAliases>

</configuration>

2.1.4 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"

       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">

    <import resource="classpath:spring-dao.xml"/>

    <import resource="classpath:spring-service.xml"/>

    <import resource="classpath:spring-mvc.xml"/>

</beans>

2.1.5 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">

    <!--1. 关联数据库配置文件-->

    <context:property-placeholder location="classpath:jdbc.properties"/>

    <!--2. 连接池

        dbcp: 半自动化操作, 不能自动连接

        c3p0: 自动化操作(自动化的加载配置文件, 并且可以自动设置到对象中)

        druid

        hikari

    -->

    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">

        <property name="driverClassName" value="${jdbc.driver}"/>

        <property name="url" value="${jdbc.url}"/>

        <property name="username" value="${jdbc.username}"/>

        <property name="password" value="${jdbc.password}"/>

    </bean>

    <!--3. sqlSessionFactory-->

    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">

        <property name="dataSource" ref="dataSource"/>

        <!--绑定MyBatis的配置文件-->

        <property name="configLocation" value="classpath:mybatis-config.xml"/>

    </bean>

    <!--4. 配置dao接口扫描包, 动态的实现了Dao接口可以注入到Spring容器中-->

    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">

        <!--注入sqlSessionFactory-->

        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>

        <!--要扫描的dao包-->

        <property name="basePackage" value="com.dz.dao"/>

    </bean>

</beans>

2.1.6 spring-service.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: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/aop

       https://www.springframework.org/schema/aop/spring-aop.xsd

       http://www.springframework.org/schema/tx

       https://www.springframework.org/schema/tx/spring-tx.xsd

       http://www.springframework.org/schema/context

       https://www.springframework.org/schema/context/spring-context.xsd">

    <!--1. 扫描service下的包-->

    <context:component-scan base-package="com.dz.service"/>

    <!--2. 将我们所有的业务类,注入到Spring, 可以通过配置,或者注解实现-->

    <bean id="bookServiceImpl" class="com.dz.service.BookServiceImpl">

        <property name="bookMapper" ref="bookMapper"/>

    </bean>

    <!--3. 声明式事务管理-->

    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">

        <!--注入数据源-->

        <property name="dataSource" ref="dataSource"/>

    </bean>

    <!--支持注解驱动,让@Transaction事务注解生效-->

    <tx:annotation-driven/>

    <!--4. aop事务支持-->

    <!--配置事务通知-->

    <tx:advice id="txManager" transaction-manager="transactionManager">

        <!--事务属性 给哪些方法配置事务-->

        <!--配置事务的传播特性 propagation-->

        <tx:attributes>

            <!--REQUIRED 默认创建一个新的事务-->

            <tx:method name="*" propagation="REQUIRED"/>

        </tx:attributes>

    </tx:advice>

    <!--配置事务切入-->

    <aop:config>

        <aop:pointcut id="txPointCut" expression="execution(* com.dz.dao.*.*(..))"/>

        <aop:advisor advice-ref="txManager" pointcut-ref="txPointCut"/>

    </aop:config>

</beans>

2.1.7 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:mvc="http://www.springframework.org/schema/mvc"

       xmlns:content="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/mvc

       https://www.springframework.org/schema/mvc/spring-mvc.xsd

       http://www.springframework.org/schema/context

       https://www.springframework.org/schema/context/spring-context.xsd">

    <!--1. 注册驱动-->

    <mvc:annotation-driven/>

    <!--2. 静态资源过滤-->

    <mvc:default-servlet-handler/>

    <!--3. 扫描包: controller-->

    <content:component-scan base-package="com.dz.controller"/>

    <!--4. 视图解析器-->

    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">

        <property name="prefix" value="/WEB-INF/jsp/"/>

        <property name="suffix" value=".jsp"/>

    </bean>

</beans>

2.1.8 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">

    <!--1. DispatcherServlet-->

    <servlet>

        <servlet-name>springmvc</servlet-name>

        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

        <init-param>

            <param-name>contextConfigLocation</param-name>

            <param-value>classpath:applicationContext.xml</param-value>

        </init-param>

        <!--启动级别: 1-->

        <load-on-startup>1</load-on-startup>

    </servlet>

    <servlet-mapping>

        <!--/: 匹配所有请求(不包括.jsp) /*: 匹配所有请求-->

        <servlet-name>springmvc</servlet-name>

        <url-pattern>/</url-pattern>

    </servlet-mapping>

    <!--乱码过滤-->

    <filter>

        <filter-name>encoding</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>encoding</filter-name>

        <url-pattern>/*</url-pattern>

    </filter-mapping>

    <!--Session-->

    <session-config>

        <session-timeout>15</session-timeout>

    </session-config>

</web-app>

3.1 项目代码

3.1.1 Books.java

package com.dz.pojo;

import lombok.AllArgsConstructor;

import lombok.Data;

import lombok.NoArgsConstructor;

@Data

@NoArgsConstructor

@AllArgsConstructor

public class Books {

    private int bookID;

    private String bookName;

    private int bookCounts;

    private String detail;

}

3.1.2 BookMapper.java

package com.dz.dao;

import com.dz.pojo.Books;

import org.apache.ibatis.annotations.Param;

import java.util.List;

public interface BookMapper {

    //增加一本书

    int addBook(Books books);

    //删除一本书

    int deleteBook(@Param("bookID") int id);

    //更新一本书

    int updateBook(Books books);

    //查询一本书

    Books queryBookById(@Param("bookID") int id);

    //根据书名查书

    List<Books> queryBookByName(@Param("bookName") String bookName);

    //查询全部的书

    List<Books> queryAllBook();

}

3.1.3 BookMapper.xml

<?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.dz.dao.BookMapper">

    <sql id="query_sql">

        select bookID,bookName,bookCounts,detail

        from ssmbuild.books

    </sql>

    <insert id="addBook" parameterType="Books">

        insert into ssmbuild.books (bookName, bookCounts, detail)

        values (#{bookName},#{bookCounts},#{detail})

    </insert>

    <update id="updateBook" parameterType="Books">

        update ssmbuild.books

        set bookName=#{bookName},bookCounts=#{bookCounts},detail=#{detail}

        where bookID=#{bookID}

    </update>

    <delete id="deleteBook" parameterType="int">

        delete from ssmbuild.books

        where bookID=#{bookID}

    </delete>

    <select id="queryBookById" resultType="Books">

        <include refid="query_sql"/>

        where bookID=#{bookID}

    </select>

    <select id="queryBookByName" resultType="Books">

        <include refid="query_sql"/>

        where bookName like concat('%',#{bookName},'%')

    </select>

    <select id="queryAllBook" resultType="Books">

        <include refid="query_sql"/>

    </select>

</mapper>

3.1.4 BookService.java

package com.dz.service;

import com.dz.pojo.Books;

import java.util.List;

public interface BookService {

    //增加一本书

    int addBook(Books books);

    //删除一本书

    int deleteBook(int id);

    //更新一本书

    int updateBook(Books books);

    //根据id查询一本书

    Books queryBookById(int id);

    //根据书名查书(模糊查询,可能有多本)

    List<Books> queryBookByName(String bookName);

    //查询全部的书

    List<Books> queryAllBook();

}

3.1.5 BookServiceImpl.java

package com.dz.service;

import com.dz.dao.BookMapper;

import com.dz.pojo.Books;

import java.util.List;

public class BookServiceImpl implements BookService{

    //service层调dao层

    private BookMapper bookMapper;

    public void setBookMapper(BookMapper bookMapper) {

        this.bookMapper = bookMapper;

    }

    @Override

    public int addBook(Books books) {

        return bookMapper.addBook(books);

    }

    @Override

    public int deleteBook(int id) {

        return bookMapper.deleteBook(id);

    }

    @Override

    public int updateBook(Books books) {

        return bookMapper.updateBook(books);

    }

    @Override

    public Books queryBookById(int id) {

        return bookMapper.queryBookById(id);

    }

    @Override

    public List<Books> queryBookByName(String bookName) {

        return bookMapper.queryBookByName(bookName);

    }

    @Override

    public List<Books> queryAllBook() {

        return bookMapper.queryAllBook();

    }

}

3.1.6 BookController.java

package com.dz.controller;

import com.dz.pojo.Books;

import com.dz.service.BookService;

import org.springframework.stereotype.Controller;

import org.springframework.ui.Model;

import org.springframework.web.bind.annotation.PathVariable;

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

import javax.annotation.Resource;

import java.util.List;

@Controller

@RequestMapping("/book")

public class BookController {

    //controller层调service层

    /*@Autowired

    @Qualifier("BookServiceImpl")*/

    @Resource(name = "bookServiceImpl")

    private BookService bookService;

    //查询全部的书籍, 并且返回到一个书籍展示页面

    @RequestMapping("/allBook")

    public String list(Model model) {

        List<Books> list = bookService.queryAllBook();

        model.addAttribute("list", list);

        return "allBook";

    }

    //跳转到新增书籍页面

    @RequestMapping("/toAddBook")

    public String toAddPaper() {

        return "addBook";

    }

    //添加书籍的请求

    @RequestMapping("/addBook")

    public String addBook(Books books) {

        bookService.addBook(books);

        //重定向到我们的@RequestMapping("/allBook")请求

        return "redirect:/book/allBook";

    }

    //跳转到修改页面

    @RequestMapping("/toUpdateBook")

    public String toUpdatePaper(int id, Model model) {

        Books book = bookService.queryBookById(id);

        model.addAttribute("book",book);

        return "updateBook";

    }

    @RequestMapping("/deleteBook/{id}")

    public String deleteBook(@PathVariable int id) {

        bookService.deleteBook(id);

        return "redirect:/book/allBook";

    }

    //修改书籍

    @RequestMapping("/updateBook")

    public String updateBook(Books books) {

        bookService.updateBook(books);

        return "redirect:/book/allBook";

    }

    //搜索框查询书籍

    @RequestMapping("/queryBook")

    public String queryBook(String queryBookName, Model model) {

        List<Books> list = bookService.queryBookByName(queryBookName);

        model.addAttribute("list",list);

        return "allBook";

    }

}

3.1.7 allBook.jsp

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>

<%@ page contentType="text/html;charset=UTF-8" language="java" %>

<html>

<head>

    <title>书籍展示</title>

    <%--BootStrap--%>

    <link href="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">

</head>

<body>

<div class="container">

    <div class="row clearfix">

        <div class="col-md-12 column">

            <div class="page-header">

                <h1>

                    <small>书籍列表------显示所有书籍</small>

                </h1>

            </div>

        </div>

        <div class="col-md-4 column">

            <%--toAddBook--%>

            <a class="btn btn-primary" href="${pageContext.request.contextPath}/book/toAddBook">新增书籍</a>

        </div>

        <div class="col-md-8 column">

            <%--搜索框查询书籍--%>

            <form class="form-inline" action="${pageContext.request.contextPath}/book/queryBook" style="float: right" method="post">

                <div class="form-group">

                    <label class="sr-only" for="queryBN">Query BookName</label>

                    <input type="text" class="form-control" id="queryBN" name="queryBookName" placeholder="请输入要查询的书籍名称">

                </div>

                <button type="submit" class="btn btn-primary">查询</button>

            </form>

        </div>

    </div>

    <div class="row clearfix">

        <div class="col-md-12 column">

            <table class="table table-hover table-striped">

                <thead>

                    <tr>

                        <th>书籍编号</th>

                        <th>书籍名称</th>

                        <th>书籍数量</th>

                        <th>书籍详情</th>

                        <th>操作</th>

                    </tr>

                </thead>

                <%--书籍从数据库中拿出来, 从这个list中遍历出来: foreach--%>

                <tbody>

                    <c:forEach var="book" items="${list}">

                        <tr>

                            <td>${book.bookID}</td>

                            <td>${book.bookName}</td>

                            <td>${book.bookCounts}</td>

                            <td>${book.detail}</td>

                            <td>

                                <a href="${pageContext.request.contextPath}/book/toUpdateBook?id=${book.bookID}">修改</a>

                                &nbsp; | &nbsp;

                                <a href="${pageContext.request.contextPath}/book/deleteBook/${book.bookID}">删除</a>

                            </td>

                        </tr>

                    </c:forEach>

                </tbody>

            </table>

        </div>

    </div>

</div>

</body>

</html>

3.1.8 addBook.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %>

<html>

<head>

    <title>新增书籍</title>

    <%--BootStrap--%>

    <link href="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">

</head>

<body>

<div class="container">

    <div class="row clearfix">

        <div class="col-md-12 column">

            <div class="page-header">

                <h1>

                    <small>新增书籍</small>

                </h1>

            </div>

        </div>

    </div>

    <form action="${pageContext.request.contextPath}/book/addBook" method="post">

        <div class="form-group">

            <label for="bkName">书籍名称: </label>

            <input type="text" class="form-control" id="bkName" name="bookName" placeholder="请填写书籍名称" required>

        </div>

        <div class="form-group">

            <label for="bkCounts">书籍数量: </label>

            <input type="text" class="form-control" id="bkCounts" name="bookCounts" placeholder="请填写书籍数量" required>

        </div>

        <div class="form-group">

            <label for="bkDetail">书籍详情: </label>

            <input type="text" class="form-control" id="bkDetail" name="detail" placeholder="请填写书籍详情" required>

        </div>

        <div class="form-group">

            <input class="btn btn-primary" type="submit" value="提交">

        </div>

    </form>

</div>

</body>

</html>

3.1.9 updateBook.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %>

<html>

<head>

    <title>修改书籍</title>

    <%--BootStrap--%>

    <link href="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">

</head>

<body>

<div class="container">

    <div class="row clearfix">

        <div class="col-md-12 column">

            <div class="page-header">

                <h1>

                    <small>修改书籍</small>

                </h1>

            </div>

        </div>

    </div>

    <form action="${pageContext.request.contextPath}/book/updateBook" method="post">

        <div class="form-group">

            <%--隐藏域--%>

            <input type="hidden" name="bookID" value="${book.bookID}">

        </div>

        <div class="form-group">

            <label for="bkName">书籍名称: </label>

            <input type="text" class="form-control" id="bkName" name="bookName" value="${book.bookName}" required>

        </div>

        <div class="form-group">

            <label for="bkCounts">书籍数量: </label>

            <input type="text" class="form-control" id="bkCounts" name="bookCounts" value="${book.bookCounts}" required>

        </div>

        <div class="form-group">

            <label for="bkDetail">书籍详情: </label>

            <input type="text" class="form-control" id="bkDetail" name="detail" value="${book.detail}" required>

        </div>

        <div class="form-group">

            <input class="btn btn-primary" type="submit" value="提交">

        </div>

    </form>

</div>

</body>

</html>

3.1.10 index.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %>

<html>

<head>

  <title>$Title$</title>

  <style>

    a{

      text-decoration: none;

      color: black;

      font-size: 18px;

    }

    h3 {

      width: 180px;

      height: 38px;

      margin: 100px auto;

      text-align: center;

      line-height: 38px;

      background: sienna;

      border-radius: 5px;

    }

  </style>

</head>

<body>

<h3>

  <a href="${pageContext.request.contextPath}/book/allBook">进入书籍页面</a>

</h3>

</body>

</html>