ssm项目整合

项目目录

一、数据库搭建

1、环境要求

• IDEA
• MySQL 8
• Tomcat 9
• Maven

2、数据库环境

CREATE DATABASE `ssmbuild`;
USE `ssmbuild`;
DROP TABLE IF EXISTS `books`;
CREATE TABLE `books` (
`bookID` INT(10) NOT NULL AUTO_INCREMENT COMMENT '书id',
`bookName` VARCHAR(100) NOT NULL COMMENT '书名',
`bookCounts` INT(11) NOT NULL COMMENT '数量',
`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,'从入门到放弃'),
(2,'MySQL',10,'从删库到跑路'),
(3,'Linux',5,'从进门到进牢');

二、基本环境搭建

1、新建maven项目

2、导入pom依赖

 <dependencies>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.18.22</version>
        </dependency>
        <!--数据库驱动-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.28</version>
        </dependency>
        <!-- 数据库连接池 -->
        <dependency>
            <groupId>com.mchange</groupId>
            <artifactId>c3p0</artifactId>
            <version>0.9.5.2</version>
        </dependency>
     <!--servlet-->
        <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>3.5.9</version>
        </dependency>

        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>2.0.7</version>
        </dependency>
	<!--spring-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>5.3.16</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>5.3.16</version>
        </dependency>
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjweaver</artifactId>
            <version>1.9.8</version>
        </dependency>
     <!--json-->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.75</version>
        </dependency>
      <!--日志-->
        <dependency>
            <groupId>ch.qos.logback</groupId>
            <artifactId>logback-classic</artifactId>
            <version>1.2.3</version>
        </dependency>

        <!--注解依赖 https://mvnrepository.com/artifact/javax.annotation/javax.annotation-api -->
        <dependency>
            <groupId>javax.annotation</groupId>
            <artifactId>javax.annotation-api</artifactId>
            <version>1.3.2</version>
        </dependency>
    </dependencies>

三、 mybatis层

1、数据库配置文件

db.properties

jdbc.driver=com.mysql.cj.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/ssmbuild
jdbc.username=root
jdbc.password=root
    
//此处的jdbc.不可少

2、idea 连接数据库

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>
    <typeAliases>
        <package name="com.jayvis.pojo"/>
    </typeAliases>

    <mappers>
        <package name="com.jayvis.dao.BookMapper"/>
    </mappers>
</configuration>

4、编写数据库对应的实体类

在pojo目录下使用了lombok插件

package com.jayvis.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;
}

6、编写接口对应的 Mapper.xml 文件

此处用的mybatis依赖

• BookMapper

package com.jayvis.dao;

import com.jayvis.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 deleteBookById(@Param("bookID") int id);
    //修改一本书
    int updateBook(Books books);
    //查询一本书
    Books queryBookById(@Param("bookID") int id);
    //查询所有书
    List<Books> queryAllBook();
    //通过书名查询
    Books queryBookByName(@Param("bookName") String bookName);


}

• BookMapper.xml

  细心！！！！

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
        PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.jayvis.dao.BookMapper">

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

        insert into books(bookID,bookName,bookCounts,detail)
        value (#{bookID},#{bookName},#{bookCounts},#{detail})
    </insert>

    <delete id="deleteBookById" parameterType="int">
        delete from books
        where bookId=#{bookID}
    </delete>

    <update id="updateBook" parameterType="Books">
        update books
        set bookID=#{bookID},bookName=#{bookName},bookCounts=#{bookCounts},detail=#{detail}
        where bookID=#{bookID}
    </update>
    <select id="queryBookById" resultType="Books">
        select * from books
        where bookID=#{bookID}
    </select>

    <!--通过书名查询书籍-->
    <select id="queryBookByName" resultType="Books">
        select * from books
        where bookName=#{bookName}
    </select>


    <select id="queryAllBook" resultType="books" >
        select * from books
    </select>
</mapper>

7、编写Service层的接口和实现类

• BookService

package com.jayvis.service;

import com.jayvis.pojo.Books;

import java.util.List;

public interface BookService {
    //增加一个Book
    int addBook(Books book);
    //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(int id);
    //查询全部Book,返回list集合
    List<Books> queryAllBook();
	//根据书名查询
    Books queryBookByName(String bookName);
}

• BookServiceImpl

package com.jayvis.service;

import com.jayvis.dao.BookMapper;
import com.jayvis.pojo.Books;
import org.springframework.stereotype.Service;
import java.util.List;

@Service
public class BookServiceImpl implements BookService {
    //调用dao层的操作，设置一个set接口，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();
    }
    public Books queryBookByName(String bookName){
        return  bookMapper.queryBookByName(bookName);
    }
}

四、Spring层

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.关联数据库文件 -->
    <context:property-placeholder location="classpath:db.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 -->
    <!--解释 ：https://www.cnblogs.com/jpfss/p/7799806.html-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
    <!-- 注入sqlSessionFactory -->
    <!-- 注意此处使用value -->
    <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
    <!-- 给出需要扫描Dao接口包 -->
    <property name="basePackage" value="com.jayvis.dao"/>
    </bean>
</beans>

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"
       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">

    <import resource="spring-dao.xml"/>
    <!-- 扫描service相关的bean -->
    <context:component-scan base-package="com.jayvis.service" />

    <!--BookServiceImpl注入到IOC容器中-->
    <bean id="BookServiceImpl" class="com.jayvis.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>

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

<context:component-scan base-package="com.jayvis.controller"/>

    <mvc:annotation-driven>
        <!--          安装Fastjson转换器-->
        <mvc:message-converters register-defaults="false">

            <bean id="fastJsonHttpMessageConverter"
                  class="com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter">
                <!-- 加入支持的媒体类型：返回contentType -->
                <property name="supportedMediaTypes">
                    <list>
                        <!-- 这里顺序不能反，一定先写text/html,不然ie下会出现下载提示 -->
                        <value>text/html;charset=UTF-8</value>
                        <value>application/json;charset=UTF-8</value>
                    </list>
                </property>
            </bean>
        </mvc:message-converters>
    </mvc:annotation-driven>
    <mvc:default-servlet-handler/>

    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <!--        前缀-->
        <property name="prefix" value="/WEB-INF/jsp/"></property>
        <!--        后缀-->
        <property name="suffix" value=".jsp"></property>
    </bean>

</beans>

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

web.xml(添加web框架)

<?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: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>

    <!--配置springMVC的乱码过滤器-->
    <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>
    <!--启动spring工厂-->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:applicationContext.xml</param-value>
    </context-param>

</web-app>

五、Controller 和 视图层

1、BookController 类编写

package com.jayvis.controller;

import com.jayvis.pojo.Books;
import com.jayvis.service.BookService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;

import java.util.ArrayList;
import java.util.List;

@org.springframework.stereotype.Controller
@RequestMapping("/book")
public class Controller {

    //controller调用service层
    @Autowired
    @Qualifier("BookServiceImpl")
    private BookService bookService;

    //    查询全部的书籍，并展示
    @RequestMapping("/allBook")
    public String list(Model model){
        List<Books> books = bookService.queryAllBook();
        model.addAttribute("list",books);

        return "allBook";
    }
    //跳转到增加书籍页面
    @RequestMapping("/toAddBook")
    public String toAddPaper(){
        return "addBook";
    }
    //添加书籍的请求
    @RequestMapping("/addBook")
    public String addBook(Books books)
    {
        bookService.addBook(books);
        return "redirect:/book/allBook";  //重定向到我们的  @RequestMapping("/allBook")
    }

    //跳转到修改页面
    @RequestMapping("/toUpdateBook")
    public String toUpdatePaper(int id,Model model){
        Books books=bookService.queryBookById(id);
        model.addAttribute("book",books);
        return "updateBook";
    }
    //修改书籍
    @RequestMapping("/updateBook")
    public String updateBook(Books books){
        bookService.updateBook(books);
        return "allBook";
    }

    //删除书籍
    @RequestMapping("/deleteBook/{bookId}")
    public String deleteBook(@PathVariable("bookId") int id){
        bookService.deleteBookById(id);
        return "redirect:/book/allBook";
    }
    //查询书籍
    @RequestMapping("/queryBook")
    public String queryBook(String queryBookName, Model model){
        Books books = bookService.queryBookByName(queryBookName);
        List<Books> list=new ArrayList<Books>();
        System.out.println(queryBookName);
        list.add(books);
        if(books==null){
            list=(bookService.queryAllBook());
            model.addAttribute("error","未找到该书籍");
        }
        model.addAttribute("list",list);

        return "allBook";
    }

}

六、页面

index.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
  <title>首页</title>
  <!-- 引入 Bootstrap -->
  <link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">

  <style type="text/css">
    a {
      text-decoration: none;
      color: black;
      font-size: 18px;
    }
    h3 {
      width: 180px;
      height: 38px;
      margin: 100px auto;
      text-align: center;
      line-height: 38px;
      background: deepskyblue;
      border-radius: 4px;
    }
  </style>

</head>
<body>
<h3>
  <a href="${pageContext.request.contextPath}/book/allBook">进入书籍页面</a>
</h3>
</body>
</html>

在WEB-INF下新建jsp目录(以下页面都放在jsp目录下)

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" required><br>
        书籍数量：<input type="text" name="bookCounts" required>><br>
        书籍详情：<input type="text" name="detail" required>><br>
        <input type="submit" value="添加">
    </form>
</div>

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>书籍列表</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>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="${pageContext.request.contextPath}/book/toAddBook">新增书籍</a>
            <a class="btn btn-primary" href="${pageContext.request.contextPath}/book/allBook">显示全部书籍</a>
        </div>
        <div class="col-md-4 column"></div>
        <div class="col-md-4 column">
            <form class="form-inline" action="${pageContext.request.contextPath}/book/queryBook" method="post"
                  style="float: right">
            <span style="color:red;font-weight: bold">${error}
            </span>
                <input type="text" name="queryBookName" class="form-control"
                       placeholder="输入查询书名" required>
                <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="${list}">
                    <tr>
                        <td>${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.getBookID()}">更改</a> |
                            <a href="${pageContext.request.contextPath}/book/deleteBook/${book.getBookID()}"> 删除</a>
                        </td>
                    </tr>
                </c:forEach>
                </tbody>
            </table>
        </div>
    </div>
</div>
</body>
</html>

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>

7、logback.xml配置文件

<?xml version="1.0" encoding="utf-8"?>
<configuration>
    <!-- 添加输出器(追加器) 作用：日志在什么地方进行输出
     ch.qos.logback.core.ConsoleAppender:向控制台进行打印输出
     -->
    <appender name="console" class="ch.qos.logback.core.ConsoleAppender">
        <!-- encoder:编码-->
        <encoder>
            <!-- pattern:规定日志输出的格式
                %d{HH:mm:ss.SSS}:开头的时间
                [%thread]:输出线程的名称
                %-5level:日志的级别 -5表示按5个字符右对齐
                %logger{36}:表示那个类进行日志输出 36:这段字符串最多允许36个字符串,超过则会用简写的方式输出
                -%msg:具体日志输出的内容
                %n:换行
            -->
            <pattern>[%thread] %d{HH:mm:ss.SSS} %-5level %logger{36} - %msg%n</pattern>
        </encoder>
    </appender>

    <!-- 日志打印的根标签 level:日志输出级别-->
    <root level="debug">
        <!-- 引用appender name="console" 在日志输出的过程中会，只要是等于debug级别或以上都会按照 appender name="console"的格式进行打印-->
        <appender-ref ref="console"/>
    </root>
</configuration>