SSM整合加简单的增删改查

SSM整合加简单的增删改查

• 创建项目

• 添加web项目文件夹

  

  

• 在pom.xml 添加依赖

      <dependencies>
          <!--    junit 测试-->
          <dependency>
              <groupId>junit</groupId>
              <artifactId>junit</artifactId>
              <version>4.13</version>
              <scope>test</scope>
          </dependency>
          <!--    mysql-->
          <dependency>
              <groupId>mysql</groupId>
              <artifactId>mysql-connector-java</artifactId>
              <version>8.0.26</version>
          </dependency>
  <!--        c3p0 连接池-->
          <dependency>
              <groupId>com.mchange</groupId>
              <artifactId>c3p0</artifactId>
              <version>0.9.5.2</version>
          </dependency>
  
          <!--    lombok -->
          <dependency>
              <groupId>org.projectlombok</groupId>
              <artifactId>lombok</artifactId>
              <version>1.18.24</version>
          </dependency>
          <!--    servlet -->
          <dependency>
              <groupId>javax.servlet</groupId>
              <artifactId>servlet-api</artifactId>
              <version>2.5</version>
              <scope>provided</scope>
          </dependency>
          <!--    servlet-jsp -->
  
          <dependency>
              <groupId>javax.servlet.jsp</groupId>
              <artifactId>jsp-api</artifactId>
              <version>2.2</version>
              <scope>provided</scope>
          </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>3.5.10</version>
          </dependency>
  
          <!--    mybatis-spring -->
          <dependency>
              <groupId>org.mybatis</groupId>
              <artifactId>mybatis-spring</artifactId>
              <version>2.1.0</version>
          </dependency>
          <!--    springmvc-->
          <dependency>
              <groupId>org.springframework</groupId>
              <artifactId>spring-webmvc</artifactId>
              <version>5.3.21</version>
          </dependency>
          <!--    spring jdbc :事务-->
          <dependency>
              <groupId>org.springframework</groupId>
              <artifactId>spring-jdbc</artifactId>
              <version>5.3.21</version>
          </dependency>
          <!--    aop-->
          <dependency>
              <groupId>org.aspectj</groupId>
              <artifactId>aspectjweaver</artifactId>
              <version>1.9.5</version>
          </dependency>
  
  
      </dependencies>
  
      <!--    导入依赖 配置 -->
      <build>
          <resources>
              <resource>
                  <directory>src/main/java</directory>
                  <includes>
                      <include>**/*.yml</include>
                      <include>**/*.xml</include>
                      <include>**/*.properties</include>
                  </includes>
                  <filtering>true</filtering>
              </resource>
              <resource>
                  <directory>src/main/resources</directory>
                  <includes>
                      <include>**/*.yml</include>
                      <include>**/*.xml</include>
                      <include>**/*.properties</include>
                  </includes>
                  <filtering>true</filtering>
              </resource>
          </resources>
      </build>
  
  

• 配置文件

  

  • database.properties: mysql信息配置文件

    jdbc.driver=com.mysql.cj.jdbc.Driver
    jdbc.url=jdbc:mysql://localhost:3306/text?userUnicode=true&characterEncoding=utf8
    jdb.username=root
    jdb.password=123456
    

  • applictionContext.xml : spring配置文件

    <?xml version="1.0" encoding="UTF8"?>
    <beans xmlns="http://www.springframework.org/schema/beans"
           xmlns:tx="http://www.springframework.org/schema/tx"
           xmlns:context="http://www.springframework.org/schema/context"
           xmlns:aop="http://www.springframework.org/schema/aop"
           xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
           xsi:schemaLocation="http://www.springframework.org/schema/beans
           https://www.springframework.org/schema/beans/spring-beans.xsd
           http://www.springframework.org/schema/context
           https://www.springframework.org/schema/context/spring-context.xsd
           http://www.springframework.org/schema/tx
           https://www.springframework.org/schema/tx/spring-tx.xsd
           http://www.springframework.org/schema/aop
           https://www.springframework.org/schema/aop/spring-aop.xsd
    ">
        <!--    关联数据文件-->
        <context:property-placeholder location="classpath:database.properties"></context:property-placeholder>
        <!--    配置数据库连接池-->
        <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
            <!--        关联数据库连接池属性 -->
            <property name="driverClass" value="${jdbc.driver}"></property>
            <property name="jdbcUrl" value="${jdbc.url}"></property>
            <property name="user" value="${jdb.username}"></property>
            <property name="password" value="${jdb.password}"></property>
            <!--        c3p0 配置-->
            <!--        最大连接池 和 最小连接池 -->
            <property name="maxPoolSize" value="30"></property>
            <property name="minPoolSize" value="10"></property>
        </bean>
        <!--    配置sqlSessionFactory-->
        <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
            <!--        注入数据库连接池 -->
            <property name="dataSource" ref="dataSource"></property>
         <!--        配置mybatis文件-->
            <property name="configLocation" value="classpath:mybatis-config.xml"></property>
            <!--        指定mybatis映射文件-->
            <property name="mapperLocations" value="classpath*:map/*.xml"></property>
        </bean>
        <!--    扫描mapper-->
        <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
            <!--        注入sqlSessionFactory-->
            <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
            <property name="basePackage" value="com.L.mapper"></property>
        </bean>
        <!--    扫描service 使注解生效-->
        <context:component-scan base-package="com.L.service"></context:component-scan>
        <!--    事务 -->
        <bean id="txManage" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
            <property name="dataSource" ref="dataSource"></property>
        </bean>
        <!--    配置事务的通知-->
        <tx:advice id="txAdvice" transaction-manager="txManage">
            <tx:attributes>
                <tx:method name="*" propagation="REQUIRED"/>
            </tx:attributes>
        </tx:advice>
        <!--配置aop事务-->
        <aop:config>
            <aop:pointcut id="txPointcut" expression="execution(* com.L.service.*.*(..))"/>
            <aop:advisor advice-ref="txAdvice" pointcut-ref="txPointcut"></aop:advisor>
        </aop:config>
    </beans>
    

  • springmvc.xml:springmvc配置文件

    <?xml version="1.0" encoding="UTF8"?>
    <beans xmlns="http://www.springframework.org/schema/beans"
           xmlns:mvc="http://www.springframework.org/schema/mvc"
           xmlns:context="http://www.springframework.org/schema/context"
           xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
           xsi:schemaLocation="http://www.springframework.org/schema/beans
           https://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
    
    ">
    
        <!--    开启 注解支持-->
        <mvc:annotation-driven></mvc:annotation-driven>
    
        <!--    静态资源-->
        <mvc:default-servlet-handler></mvc:default-servlet-handler>
        <!--    扫描controller-->
        <context:component-scan base-package="com.L.controller"></context:component-scan>
    
        <mvc:resources location="/static/" mapping="/static/**" />
        <!--    视图解析器-->
        <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
            <property name="prefix" value="/WEB-INF/jsp/"></property>
            <property name="suffix" value=".jsp"></property>
        </bean>
    
    
    </beans>
    
    

  • 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>
    
    </configuration>
    

  • beans.xml: 总的配置文件

    <?xml version="1.0" encoding="UTF8"?>
    <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
           https://www.springframework.org/schema/beans/spring-beans.xsd
    ">
    <import resource="applicationContext.xml"></import>
    <import resource="springmvc.xml"></import>
    </beans>
    

• 配置web.xml 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">
      <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:beans.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>
      <!--    乱码过滤器-->
      <filter>
          <filter-name>encodingFilter</filter-name>
          <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
          <init-param>
              <param-name>encoding</param-name>
              <param-value>utf8</param-value>
          </init-param>
      </filter>
      <filter-mapping>
          <filter-name>encodingFilter</filter-name>
          <url-pattern>/*</url-pattern>
      </filter-mapping>
  </web-app>
  

• jsp文件：页面

  

  • index.jsp

    <%--
      User: LIJIAN
      Date: 2023/12/4
      Time: 11:32
      To change this template use File | Settings | File Templates.
    --%>
    <%@ page contentType="text/html;charset=UTF-8" language="java" %>
    <html>
    <head>
        <title>$Title$</title>
    </head>
    <body>
    <h3>
        <a href="${pageContext.request.contextPath}/book/allBook">点击</a>
    </h3>
    </body>
    </html>
    
    

  • allBook.jsp

    <%--
      User: LIJIAN
      Date: 2023/12/4
      Time: 12:21
      To change this template use File | Settings | File Templates.
    --%>
    <%@ page contentType="text/html;charset=UTF-8" language="java" %>
    <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
    <html>
    <head>
        <title>书籍列表 --- 显示所有书籍</title>
    </head>
    <link rel="stylesheet" href="${pageContext.request.contextPath}/static/bootstrap/css/bootstrap.min.css"/>
    <body>
    <div class="container">
        <div class="row clearfix">
            <div class="row clearfix">
                <div class="col-md-12 column">
                    <div class="page-item">
                        <h1>
                            <small>书籍列表----显示所有书籍</small>
                        </h1>
    
                    </div>
                </div>
    
                <div>
                    <div>
                        <a class="btn btn-primary" href="${pageContext.request.contextPath}/book/toAddBook">增加书籍</a>
                    </div>
                </div>
    
            </div>
        </div>
    
        <div class="row clearfix">
            <div class="col-md-12 column">
                <table class="table table-hover table-striped">
                    <thead>
                    <tr>
                        <th>编号</th>
                        <th>书籍姓名</th>
                        <th>数量</th>
                        <th>详情</th>
                        <th>操作</th>
                    </tr>
                    </thead>
                    <taody>
                        <c:forEach var="book" items="${list}">
                            <tr>
                                <td>${book.bookID}</td>
                                <td>${book.bookName}</td>
                                <td>${book.bookCount}</td>
                                <td>${book.detail}</td>
                                <td>
                                    <a class="btn btn-danger"
                                       href="${pageContext.request.contextPath}/book/toUpdateBook/${book.bookID}">修改</a>
                                    <a class="btn btn-danger"
                                       href="${pageContext.request.contextPath}/book/deleteBook/${book.bookID}">删除</a>
                                </td>
                            </tr>
    
                        </c:forEach>
                    </taody>
                </table>
            </div>
        </div>
    
    </div>
    
    </body>
    </html>
    
    
    

  • addBook.jsp

    <%--
      User: LIJIAN
      Date: 2023/12/4
      Time: 12:50
      To change this template use File | Settings | File Templates.
    --%>
    <%@ page contentType="text/html;charset=UTF-8" language="java" %>
    <html>
    <head>
        <title>添加书籍</title>
    </head>
    <link rel="stylesheet" href="${pageContext.request.contextPath}/static/bootstrap/css/bootstrap.min.css"/>
    <body>
    
    <div class="container">
    
        <div class="row clearfix">
            <div class="col-md-12 column">
                <div class="page-item">
                    <h1>
                        <small>
                            新增书籍
                        </small>
                    </h1>
                </div>
            </div>
    
            <form action="${pageContext.request.contextPath}/book/addBook" method="post">
                <div class="form-group">
    
                    <label>书籍名称：</label>
                    <input type="text" name="bookName" class="form-control" required>
                </div>
                <div class="form-group">
    
                    <label>书籍数量：</label>
                    <input type="text" name="bookCount" class="form-control" required>
                </div>
                <div class="form-group">
    
                    <label>书籍描述：</label>
                    <input type="text" name="detail" class="form-control" required>
                </div>
                <div class="form-group">
                    <input type="submit" class="form-control" value="添加">
                </div>
            </form>
    
        </div>
    </div>
    </body>
    </html>
    
    

  • updateBook.jsp

    <%--
      User: LIJIAN
      Date: 2023/12/4
      Time: 12:58
      To change this template use File | Settings | File Templates.
    --%>
    <%@ page contentType="text/html;charset=UTF-8" language="java" %>
    <html>
    <head>
        <title>更新书籍</title>
    </head>
    <link rel="stylesheet" href="${pageContext.request.contextPath}/static/bootstrap/css/bootstrap.min.css"/>
    <body>
    
    <div class="container">
    
        <div class="row clearfix">
            <div class="col-md-12 column">
                <div class="page-item">
                    <h1>
                        <small>
                            修改书籍
                        </small>
                    </h1>
                </div>
            </div>
    
            <form action="${pageContext.request.contextPath}/book/updateBook" method="post">
                <input type="hidden" name="bookID" class="form-control" value="${book.bookID}">
                <div class="form-group">
    
                    <label>书籍名称：</label>
                    <input type="text" name="bookName" class="form-control" required value="${book.bookName}">
                </div>
                <div class="form-group">
    
                    <label>书籍数量：</label>
                    <input type="text" name="bookCount" class="form-control" required value="${book.bookCount}">
                </div>
                <div class="form-group">
    
                    <label>书籍描述：</label>
                    <input type="text" name="detail" class="form-control" required value="${book.detail}">
                </div>
                <div class="form-group">
                    <input type="submit" class="form-control" value="修改">
                </div>
    
    
            </form>
    
        </div>
    </div>
    
    </body>
    </html>
    
    

• 代码部分

  

  • entity：实体类

    package com.L.entity;
    
    import lombok.AllArgsConstructor;
    import lombok.Data;
    import lombok.NoArgsConstructor;
    
    /**
     * @Author LIJIAN
     * @Date 2023/12/4 13:01
     */
    
    //全参构造
        @AllArgsConstructor
    //    无参构造
        @NoArgsConstructor
    //    set get
        @Data
    public class Book {
    private int bookID;
    private String bookName;
    private int bookCount;
    private String detail;
    
    }
    
    

  • mapper

    • BookMapper

      package com.L.mapper;
      
      import com.L.entity.Book;
      import org.springframework.stereotype.Repository;
      
      import java.util.List;
      
      /**
       * @Author LIJIAN
       * @Date 2023/12/4 13:08
       */
      @Repository
      public interface BookMapper {
          List<Book> listBook();
          int addBook(Book book);
          int delete(int id);
          Book upBookID(int id);
          int upBook(Book book);
      }
      
      

  • resources/map

    • BookMapper.xml

      <?xml version="1.0" encoding="UTF8" ?>
      <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
      
      
      <mapper namespace="com.L.mapper.BookMapper">
      
      
          <delete id="delete">
              delete
              from ssm_test
              where bookID = #{id};
          </delete>
      
          <select id="listBook" resultType="com.L.entity.Book">
              select *
              from ssm_test
          </select>
      
      
          <insert id="addBook">
              insert into ssm_test(bookName, bookCount, detail)
                  value (#{bookName},#{bookCount},#{detail})
          </insert>
      
      
          <select id="upBookID" resultType="com.L.entity.Book">
      
              select *
              from ssm_test
              where bookID = #{id}
          </select>
      
          <update id="upBook">
              update ssm_test
              set bookName=#{bookName},
                  bookCount=#{bookCount},
                  detail=#{detail}
              where bookID = #{bookID}
      
      
          </update>
      </mapper>
      

  • service

    • BookService

    package com.L.service;
    
    import com.L.entity.Book;
    
    import java.util.List;
    
    /**
     * @Author LIJIAN
     * @Date 2023/12/4 13:11
     */
    
    public interface BookService {
    
        List<Book> list();
        int addBook(Book book);
        int delete(int id);
        Book upBookID(int id);
        int upBook(Book book);
    }
    
    

    • BookServiceImpl

      package com.L.service.impl;
      
      import com.L.entity.Book;
      import com.L.mapper.BookMapper;
      import com.L.service.BookService;
      import org.springframework.beans.factory.annotation.Autowired;
      import org.springframework.stereotype.Service;
      
      import java.util.List;
      
      /**
       * @Author LIJIAN
       * @Date 2023/12/4 13:12
       */
      @Service
      public class BookServiceImpl implements BookService {
      
          @Autowired
          private BookMapper bookMapper;
      
          @Override
          public List<Book> list() {
              List<Book> list = bookMapper.listBook();
              return list;
          }
      
          @Override
          public int addBook(Book book) {
             int i = bookMapper.addBook(book);
              return i;
          }
      
          @Override
          public int delete(int id) {
            int i=  bookMapper.delete(id);
              return i;
          }
      
          @Override
          public Book upBookID(int id) {
      
              return   bookMapper.upBookID(id);
          }
      
          @Override
          public int upBook(Book book) {
      
              return bookMapper.upBook(book);
          }
      }
      
      

  • controller

    • BookController

      package com.L.controller;
      
      import com.L.entity.Book;
      import com.L.service.BookService;
      import org.springframework.beans.factory.annotation.Autowired;
      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 java.util.List;
      
      /**
       * @Author LIJIAN
       * @Date 2023/12/4 13:15
       */
      @Controller
      @RequestMapping("/book")
      public class BookController {
      
          @Autowired
          private BookService bookService;
      
          @RequestMapping("/allBook")
          public String list(Model model) {
              List<Book> list = bookService.list();
              model.addAttribute("list", list);
              return "allBook";
          }
      
          @RequestMapping("/toAddBook")
          public String preAdd() {
              return "addBook";
          }
      
          @RequestMapping("/addBook")
          public String addBook(Book book) {
              int i = bookService.addBook(book);
              return "redirect:/book/allBook";
          }
      
      
          @RequestMapping("/deleteBook/{bookID}")
          public String deleteBook(@PathVariable int bookID) {
              int i = bookService.delete(bookID);
              return "redirect:/book/allBook";
          }
      
          @RequestMapping("/toUpdateBook/{bookID}")
          public String UpdateBookID(@PathVariable int bookID, Model model) {
              Book book = bookService.upBookID(bookID);
              model.addAttribute("book", book);
              return "updateBook";
          }
      
          @RequestMapping("/updateBook")
          public String UpdateBook(Book book) {
              int i = bookService.upBook(book);
              return "redirect:/book/allBook";
          }
      
      
      }
      
      

• 数据库设计

  

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• SSM框架--sping
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• IDEA+SSM踩坑：org.apache.ibatis.binding.BindingException: Invalid bound statement (not found)错误
• SSM【已完结】
• SSM整合流程
• SSM整合

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