springmvc-ssm整合小项目

1.依赖

<dependencies>

    <!--junit-->
    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>4.13.2</version>
    </dependency>
    <!--mysql-->
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>8.0.23</version>
    </dependency>
    <!--数据库连接池-->
    <dependency>
        <groupId>com.mchange</groupId>
        <artifactId>c3p0</artifactId>
        <version>0.9.5.5</version>
    </dependency>
    <!--mybatis-->
    <dependency>
        <groupId>org.mybatis</groupId>
        <artifactId>mybatis</artifactId>
        <version>3.5.7</version>
    </dependency>
    <dependency>
        <groupId>org.mybatis</groupId>
        <artifactId>mybatis-spring</artifactId>
        <version>2.0.6</version>
    </dependency>
    <!--Servlet-jsp-->
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>jstl</artifactId>
        <version>1.2</version>
    </dependency>
    <!--servlet-api-->
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>servlet-api</artifactId>
        <version>2.5</version>
    </dependency>
    <!--jsp-api-->
    <dependency>
        <groupId>javax.servlet.jsp</groupId>
        <artifactId>jsp-api</artifactId>
        <version>2.2</version>
    </dependency>
    <!--spring-->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc</artifactId>
        <version>5.3.7</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-jdbc</artifactId>
        <version>5.3.8</version>
    </dependency>
</dependencies>
2.-----------静态资源过滤

<!--静态资源过滤-->
<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>
3.-----------配置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">
    <!--ServletDispatcher-->
    <servlet>
        <servlet-name>DispatcherServlet</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:cn/com/scitc/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-->
    <!--解决编码乱码问题-->
    <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过期时间-->
    <session-config>
        <session-timeout>15</session-timeout>
    </session-config>
</web-app>
4.dao包
　　1.BookMapper---------->>>>>>>>>>>>>>

import cn.com.scitc.pojo.Books;
import org.apache.ibatis.annotations.Param;

import java.util.List;

public interface BookMapper {
    //添加一本书
    int addBook(Books books);
    //根据id删除一本书
    int deleteBookByid(@Param("bookID") int id);
    //查找所有书籍
    List<Books> findBooks();
    //更新数据
    int updateBook(Books books);
    //根据id查找一本书
    Books findByBookId(@Param("bookID") int id);
    //根据姓名查一本书
    List<Books> findByname(@Param("bookName") String name);
}
　　2.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="cn.com.scitc.dao.BookMapper">
    <!--添加一本书-->
    <insert id="addBook" parameterType="cn.com.scitc.pojo.Books">
        insert into books(id,bookname,bookcounts,appearance)values
        (#{bookID},#{bookName},#{bookCounts},#{detail})
    </insert>
    <!--根据id删除-->
    <delete id="deleteBookByid" parameterType="int">
        delete from books where id=#{bookID}
    </delete>
    <!--查找所有书籍-->
    <select id="findBooks" resultMap="findAllmap">
        select * from books
    </select>
    <!--更新书籍-->
    <update id="updateBook" parameterType="cn.com.scitc.pojo.Books">
        update books set bookname=#{bookName},bookcounts=#{bookCounts}
        ,appearance=#{detail} where id=#{bookID}
    </update>
    <!--根据id查找一本书-->
    <select id="findByBookId" resultMap="findAllmap">
        select * from books where id=#{bookID}
    </select>
    <!--关系映射-->
    <resultMap id="findAllmap" type="cn.com.scitc.pojo.Books">
        <result property="bookID" column="id"/>
        <result property="detail" column="appearance"/>
    </resultMap>

    <!--根据名字查-->
    <select id="findByname" resultMap="findAllmap" >
        select * from books
        where bookname like '%' #{bookName} '%';
    </select>
</mapper>

3.Dao包的spring-dao.xml配置

<?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">
        <!--配置整合mybatis-->
        <!--1关联数据库文件-->
        <context:property-placeholder location="classpath:/cn/com/scitc/database.properties"/>
        <!--2数据库连接池-->
        <!--数据库连接池补充
        dbcp：半自动化操作，不能自动连接。
        c3p0:全自动化操作（自动的加载配置文件并设置到对象里面）
        -->
        <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"/>
            <!--获取连接超时时长-->
            <property name="checkoutTimeout" value="10000"/>
            <!--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">
            <!--注入数据库连接池-->
            <property name="dataSource" ref="dataSource"/>
            <!--配置mybatis-config.xml全局文件-->
            <property name="configLocation" value="classpath:/cn/com/scitc/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">
            <!--注入sqlsessionFactory-->
            <!--
            这里的需要设置关联的sqlsessionFactory对象的名称
            然后找到对应的sqlsessionfactory动态的注入sqlsessionfactory
            -->
            <property name="sqlSessionFactoryBeanName" value="sqlsessionFactory"/>
            <!--给出需要扫描的Dao接口包-->
            <property name="basePackage" value="cn.com.scitc.dao"/>
        </bean>

</beans>
5.配置service包
　　1.BookService接口类
　　　

package cn.com.scitc.service;

import cn.com.scitc.pojo.Books;
import org.apache.ibatis.annotations.Param;

import java.awt.print.Book;
import java.util.List;
//BookService底层实现调用Dao
public interface BookService {
    //添加一本书
    int addBook(Books books);
    //根据id删除一本书
    int deleteBookByid(@Param("bookID") int id);
    //查找所有书籍
    List<Books> findBooks();
    //更新数据
    int updateBook(Books books);
    //根据id查找一本书
    Books findByBookId(@Param("bookID") int id);
    //根据姓名查一本书
    List<Books> findByname(String name);
}
2.接口实现类

package cn.com.scitc.service;

import cn.com.scitc.dao.BookMapper;
import cn.com.scitc.pojo.Books;
import java.util.List;

//BookService的实现类
public class BookServiceImpl implements BookService {
    private BookMapper bookMapper;
    //调用Dao层接口,设置一个set入口，方便被spring管理。
    public void setBookMapper(BookMapper bookMapper) {
        this.bookMapper = bookMapper;
    }

    @Override
    public int addBook(Books books) {
       return bookMapper.addBook(books);
    }

    @Override
    public int deleteBookByid(int id) {
        return bookMapper.deleteBookByid(id);
    }

    @Override
    public List<Books> findBooks() {
        return bookMapper.findBooks();
    }

    @Override
    public int updateBook(Books books) {
        return bookMapper.updateBook(books);
    }

    @Override
    public Books findByBookId(int id) {
        return bookMapper.findByBookId(id);
    }

    @Override
    public List<Books> findByname(String name) {
        return bookMapper.findByname(name);
    }
}
3.service的spring-service.xml配置

<?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">
        <!--扫描相关bean-->
        <context:component-scan base-package="cn.com.scitc.service"/>
        <!--把BookServiceImpl注入到IOC容器-->
        <bean id="BookServiceImpl" class="cn.com.scitc.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>

6.pojo包
1.Books模型类

package cn.com.scitc.pojo;

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

    public int getBookID() {
        return bookID;
    }

    public void setBookID(int bookID) {
        this.bookID = bookID;
    }

    public String getBookName() {
        return bookName;
    }

    public void setBookName(String bookName) {
        this.bookName = bookName;
    }

    public int getBookCounts() {
        return bookCounts;
    }

    public void setBookCounts(int bookCounts) {
        this.bookCounts = bookCounts;
    }

    public String getDetail() {
        return detail;
    }

    public void setDetail(String detail) {
        this.detail = detail;
    }
}
7.controoler包

1.BookControoler

package cn.com.scitc.controller;

import cn.com.scitc.pojo.Books;
import cn.com.scitc.service.BookService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
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;
@Controller
@RequestMapping("/book")
public class BookController {
    @Autowired
    @Qualifier("BookServiceImpl")
    private BookService bookService;

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

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

    @RequestMapping("/toUpdateBook")
    public String toUpdateBook(int id,Model model){
        Books books = bookService.findByBookId(id);
        model.addAttribute("book", books);
        return "updatebook";
    }

    @RequestMapping("/updateBook")
    public String updateBook(Books books){
        System.out.println(books);
        bookService.updateBook(books);
        return "redirect:/book/allBook";
    }
    @RequestMapping("/del/{bookid}")
    public String deleteBook(@PathVariable("bookid") int id){
        bookService.deleteBookByid(id);
        return "redirect:/book/allBook";
    }

    @RequestMapping("/findbyname")
    public String findbyname(String findbyname,Model model){
        System.out.println(findbyname);
        if(findbyname==""){
           List<Books> list= bookService.findBooks();
           model.addAttribute("list", list);
           return "allbook";
        }else {
          List<Books> books=  bookService.findByname(findbyname);
          model.addAttribute("list", books);
          return "allbook";
        }
    }
}
2.springmvc的配置

<?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
        http://www.springframework.org/schema/mvc/spring-mvc.xsd">
        <!--配置springMVC-->
        <!--开启SpringMVC注解驱动-->
        <mvc:annotation-driven/>
        <!--静态资源servlet配置-->
        <mvc:default-servlet-handler/>
        <!--配置显示ViewResovler视图解析器-->
        <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>
        <!--扫描web相关的bean-->
        <context:component-scan base-package="cn.com.scitc.controller"/>
</beans>

mybatis-config配置

<?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="cn.com.scitc.pojo"/>
    </typeAliases>
    <mappers>
        <package name="cn.com.scitc.dao"/>
    </mappers>
</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">
        <import resource="spring-mvc.xml"/>
        <import resource="spring-service.xml"/>
        <import resource="spring-dao.xml"/>
</beans>

db.properties配置

jdbc.driver=com.mysql.cj.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/webapp1902?serverTimezone=GMT%2B8
jdbc.username=webapp1902
jdbc.password=7963158233