整合SpringMVC

SpringSSM整合(第一个项目,重点):

导入相关的pom依赖！

 <dependencies>
    <!--Junit-->
    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>4.12</version>
    </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 -->
    <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>

Maven资源过滤设置

 <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.实体类：

 public class Books {
     private int bookID;
     private String bookName;
     private String bookCounts;
     private String detail;
 }

2.BookMapper接口：

 public interface BookMapper {
     //增加一个Book
     int addBook(Books books);
     //根据id删除一个Book
     int deleteBookById(int id);
     //更新Book
     int updateBook(Books books);
     //根据id查询,返回一个Book
     Books queryBookById(@Param("id") int id);
     //查询全部Book,返回list集合
     List<Books> queryAllBook();
     Books queryBookByName(@Param("bookName") String bookName);
 }

3.BookMapper.xml配置：

 <mapper namespace="com.study.dao.BookMapper">
     <!--增加一个Book-->
     <insert id="addBook" parameterType="Books">
         insert into ssmbuild.books(bookName,bookCounts,detail)
         values (#{bookName}, #{bookCounts}, #{detail})
     </insert>
     <!--根据id删除一个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>
     <!--根据id查询,返回一个Book-->
     <select id="queryBookById" resultType="Books">
         select * from ssmbuild.books
         where bookID = #{bookID}
     </select>
     <!--查询全部Book-->
     <select id="queryAllBook" resultType="Books">
         SELECT * from ssmbuild.books
     </select>
     <!--查询单个Book-->
     <select id="queryBookByName" resultType="Books">
         select * from ssmbuild.books where bookName=#{bookName};
     </select>
 </mapper>

4.service层接口与实现类

 public interface BookService {}
 public class BookServiceImpl implements BookService{   }

5.controller层

 @Controller
 @RequestMapping("/book")
 public class BookController {
     //Controller 调用 service层
     @Autowired
     @Qualifier("BookServiceImpl")
     private BookService bookService;
      //查询全部书籍信息
     @RequestMapping("/allBook")
     public String list(Model model){
         List<Books> list = bookService.queryAllBook();
         model.addAttribute("list",list);
         return "allBook";
     }
     //跳转新增页面
     @RequestMapping("/toAddBook")
     public String toAddBook(Model model){
         return "addBook";
     }
      //新增页面
     @RequestMapping("/addBook")
     public String addBook(Books books) {
 //        System.out.println(books);
         bookService.addBook(books);
         return "redirect:/book/allBook";
     }
      //跳转修改页面
     @RequestMapping("toUpdate")
     public String toUpdateBook(int id,Model model){
         Books books = bookService.queryBookById(id);
         model.addAttribute("books",books);
         return "updateBook";
     }
      //修改页面
     @RequestMapping("/updateBook")
     public String updateBook(Books books) {
         bookService.updateBook(books);
         return "redirect:/book/allBook";
     }
      //删除
     @RequestMapping("/delete/{bookId}")
     public String deleteBook(@PathVariable("bookId") int id) {
         bookService.deleteBookById(id);
         return "redirect:/book/allBook";
     }
      //查询单个书籍页面
     @RequestMapping("/queryBook")
     public String queryBookByName(String bookName,Model model){
         Books books = bookService.queryBookByName(bookName);
         List<Books> list = new ArrayList<Books>();
         list.add(books);
         model.addAttribute("list",list);
         return "allBook";
     }
 }

6.mybatis-config.xml配置文件

 <?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.study.pojo"/>
     </typeAliases>
     <mappers>
         <mapper class="com.study.dao.BookMapper"/>
     </mappers>
 </configuration>

7.spring-dao.xml配置文件

 <?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.关联数据库文件 -->
     <context:property-placeholder location="classpath:database.properties"/>
     <!-- 2.数据库连接池 -->
     <!--数据库连接池
         dbcp 半自动化操作 不能自动连接
         c3p0 自动化操作（自动的加载配置文件 并且设置到对象里面）
     -->
     <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
         <!-- 配置连接池属性 -->
         <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连接池的私有属性 -->
         <property name="maxPoolSize" value="30"/>
         <property name="minPoolSize" value="10"/>
         <!-- 关闭连接后不自动commit -->
         <property name="autoCommitOnClose" value="false"/>
         <!-- 获取连接超时时间 -->
         <property name="checkoutTimeout" value="10000"/>
         <!-- 当获取连接失败重试次数 -->
         <property name="acquireRetryAttempts" value="2"/>
     </bean>
     <!-- 3.配置SqlSessionFactory对象 -->
     <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
         <property name="dataSource" ref="dataSource"/>
         <property name="configLocation" value="classpath:mybatis-config.xml"/>
     </bean>
     <!-- 4.配置扫描Dao接口包，动态实现Dao接口注入到spring容器中 -->
     <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
         <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
         <property name="basePackage" value="com.study.dao"/>
     </bean>
 </beans>

8.spring-service.xml配置文件

 <?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">
     <!-- 扫描service相关的bean -->
     <context:component-scan base-package="com.study.service"/>
     <!--BookServiceImpl注入到IOC容器中-->
     <bean id="BookServiceImpl" class="com.study.service.BookServiceImpl">
         <property name="bookMapper" ref="bookMapper"/>
     </bean>
     <!-- 配置事务管理器 -->
     <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
         <!-- 注入数据库连接池 -->
         <property name="dataSource" ref="dataSource"/>
     </bean>
 </beans>
 ​

9.springmvc-servlet.xml配置文件

 <?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: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/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">
     <!-- 配置SpringMVC -->
     <!-- 1.开启SpringMVC注解驱动 -->
     <mvc:annotation-driven/>
     <!-- 2.静态资源默认servlet配置-->
     <mvc:default-servlet-handler/>
     <!-- 3.配置jsp 显示ViewResolver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>
     <!-- 4.扫描web相关的bean -->
     <context:component-scan base-package="com.study.controller"/>
 </beans>
 ​

10.applicationContext.xml配置文件

 <?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="springmvc-servlet.xml"/>
 </beans>

11.web.xml配置文件

 <?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>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>
         <load-on-startup>1</load-on-startup>
     </servlet>
     <servlet-mapping>
         <servlet-name>springmvc</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-config>
         <session-timeout>15</session-timeout>
     </session-config>
 </web-app>

12.BookController 类编写 , 方法一：查询全部书籍

 @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";
   }
 }

13.总览 allbook.jsp前端展示页面

 <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>
     <div class="row">
         <div class="col-md-4 column">
             <a class="btn btn-primary" href="${pageContext.request.contextPath}/book/toAddBook">新增</a>
         </div>
         <div class="col-md-4 column">
              <%-- 查询书籍 --%>
             <form class="form-inline" action="${pageContext.request.contextPath}/book/queryBook" method="post" style="float: right">
                 <input name="bookName" type="text" class="form-control" placeholder="输入要查询的书籍名称">
                 <input type="submit" value="查询" class="btn btn-primary">
             </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>书籍名字</th>
                     <th>书籍数量</th>
                     <th>书籍详情</th>
                     <th>操作</th>
                 </tr>
                 </thead>
                 <tbody>
                 <c:forEach var="book" items="${requestScope.get('list')}">
                     <tr>
                         <td>${book.getBookID()}</td>
                         <td>${book.getBookName()}</td>
                         <td>${book.getBookCounts()}</td>
                         <td>${book.getDetail()}</td>
                         <td>
                             <a href="${pageContext.request.contextPath}/book/toUpdate?id=${book.getBookID()}">更改</a> |
                             <a href="${pageContext.request.contextPath}/book/delete/${book.getBookID()}">删除</a>
                         </td>
                     </tr>
                 </c:forEach>
                 </tbody>
             </table>
         </div>
     </div>
 </div>

14.BookController 类编写 ， 方法二：添加书籍

 @RequestMapping("/toAddBook")
 public String toAddPaper() {
    return "addBook";
 }
 ​
 @RequestMapping("/addBook")
 public String addPaper(Books books) {
    System.out.println(books);
    bookService.addBook(books);
    return "redirect:/book/allBook";
 }

15、添加书籍页面：addBook.jsp

 <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
 <%@ page contentType="text/html;charset=UTF-8" language="java" %>
 ​
 <html>
 <head>
    <title>新增书籍</title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <!-- 引入 Bootstrap -->
    <link href="https://cdn.bootcss.com/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">
       书籍名称：<input type="text" name="bookName"><br><br><br>
       书籍数量：<input type="text" name="bookCounts"><br><br><br>
       书籍详情：<input type="text" name="detail"><br><br><br>
        <input type="submit" value="添加">
    </form>
 ​
 </div>

16、BookController 类编写 ， 方法三：修改书籍

 @RequestMapping("/toUpdateBook")
 public String toUpdateBook(Model model, int id) {
    Books books = bookService.queryBookById(id);
    System.out.println(books);
    model.addAttribute("book",books );
    return "updateBook";
 }
 ​
 @RequestMapping("/updateBook")
 public String updateBook(Model model, Books book) {
    System.out.println(book);
    bookService.updateBook(book);
    Books books = bookService.queryBookById(book.getBookID());
    model.addAttribute("books", books);
    return "redirect:/book/allBook";
 }

17、修改书籍页面 updateBook.jsp

 <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
 <%@ page contentType="text/html;charset=UTF-8" language="java" %>
 <html>
 <head>
    <title>修改信息</title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <!-- 引入 Bootstrap -->
    <link href="https://cdn.bootcss.com/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>修改信息</small>
                </h1>
            </div>
        </div>
    </div>
 ​
    <form action="${pageContext.request.contextPath}/book/updateBook" method="post">
        <input type="hidden" name="bookID" value="${book.getBookID()}"/>
       书籍名称：<input type="text" name="bookName" value="${book.getBookName()}"/>
       书籍数量：<input type="text" name="bookCounts" value="${book.getBookCounts()}"/>
       书籍详情：<input type="text" name="detail" value="${book.getDetail() }"/>
        <input type="submit" value="提交"/>
    </form>
 ​
 </div>

18、BookController 类编写 ， 方法四：删除书籍

 @RequestMapping("/del/{bookId}")
 public String deleteBook(@PathVariable("bookId") int id) {
    bookService.deleteBookById(id);
    return "redirect:/book/allBook";
 }

19.总的框架结构图