IDEA新建基于maven的SSM项目

新建一个Maven项目

  • 选择maven
  • 勾选使用模板
  • 选择webapp的模板

java ssm maven简单项目 maven搭建ssm_java ssm maven简单项目

输入项目名

java ssm maven简单项目 maven搭建ssm_spring_02

配置Maven

  • 1、选择自己的Maven，最好不用Idea自带的
  • 2、选择自己的Maven配置文件
  • 3、选择自己的Maven仓库，最好自己新建仓库，不用默认的

java ssm maven简单项目 maven搭建ssm_java ssm maven简单项目_03


项目启动加载完了后编译一下，看是否成功

java ssm maven简单项目 maven搭建ssm_maven_04

配置Tomcat

右上角

java ssm maven简单项目 maven搭建ssm_spring_05


选择自己的tomcat

java ssm maven简单项目 maven搭建ssm_tomcat_06

java ssm maven简单项目 maven搭建ssm_tomcat_07


java ssm maven简单项目 maven搭建ssm_tomcat_08


java ssm maven简单项目 maven搭建ssm_maven_09

java ssm maven简单项目 maven搭建ssm_tomcat_10


配置完成后运行一下项目

java ssm maven简单项目 maven搭建ssm_java ssm maven简单项目_11

在main目录下新建java包

java ssm maven简单项目 maven搭建ssm_java ssm maven简单项目_12


标记成源代码目录，新版本的idea会自动标记

java ssm maven简单项目 maven搭建ssm_spring_13

在main目录下新建resources目录并标记成静态文件目录

java ssm maven简单项目 maven搭建ssm_tomcat_14


如果自动生成了就不需要建

导入基本依赖

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.cloud</groupId>
    <artifactId>manage</artifactId>
    <version>1.0-SNAPSHOT</version>

    <!-- 项目依赖，junit,数据库驱动，连接池，servlet，jsp,mybatis,mybatis-spring,spring -->
    <dependencies>
        <!-- Junit -->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.11</version>
        </dependency>
        <!--数据库驱动-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.29</version>
        </dependency>
        <!--数据连接池-->
        <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>3.2.4</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>2.0.2</version>
        </dependency>

        <!--spring-->
        <!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>5.2.9.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>5.2.9.RELEASE</version>
        </dependency>
        <!-- lombok-->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.16.10</version>
        </dependency>

    </dependencies>

    <!-- 静态资源导出问题-->
    <build>
        <resources>
            <resource>
                <directory>src/main/java</directory>
                <includes>
                    <include>**/*.propertise</include>
                    <include>**/*.xml</include>
                </includes>
                <filtering>false</filtering>
            </resource>
            <resource>
                <directory>src/main/resources</directory>
                <includes>
                    <include>**/*.propertise</include>
                    <include>**/*.xml</include>
                </includes>
                <filtering>false</filtering>
            </resource>
        </resources>
    </build>

</project>

建立基本的包结构

java ssm maven简单项目 maven搭建ssm_spring_15

新建实体类

package com.cloud.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;
}

新建查询接口

package com.cloud.dao;

import com.cloud.pojo.Books;

import java.util.List;

public interface BookMapper {

    //增
    int addBooks(Books books);

    //删
    int deleteBookById(int id);

    //查
    Books queryBookById(int id);

    List<Books> queryAllBooks();

    //改
    int updateBook(Books books);
}

实现查询接口

<?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.cloud.dao.BookMapper">

    <insert id="addBooks" parameterType="com.cloud.pojo.Books">
        insert into books (bookName, bookCounts, detail) values (#{bookName},#{bookCounts},#{detail});
    </insert>

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

    <update id="updateBook" parameterType="com.cloud.pojo.Books">
        update ssmbuild.books
        set bookName=#{bookName},bookCounts=#{bookCounts},detail=#{detail}
        where bookID = #{bookID};
    </update>

    <select id="queryBookById" resultType="com.cloud.pojo.Books">
        select * from ssmbuild.books where bookID = #{bookID};
    </select>

    <select id="queryAllBooks" resultType="com.cloud.pojo.Books">
        select * from ssmbuild.books;
    </select>
</mapper>

编写Mybatis的配置文件

在resources文件夹下新建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>
    <!--取别名-->
    <typeAliases>
        <package name="com.cloud.pojo"/>
    </typeAliases>
    
    <mappers>
        <mapper class="com.cloud.dao.BookMapper"/>
    </mappers>
    
</configuration>

编写业务层

package com.cloud.service;

import com.cloud.pojo.Books;

import java.util.List;

public interface BookService {
    //增
    int addBooks(Books books);

    //删
    int deleteBookById(int id);

    //查
    Books queryBookById(int id);

    List<Books> queryAllBooks();

    //改
    int updateBook(Books books);
}

编写业务层实现

package com.cloud.service;

import com.cloud.dao.BookMapper;
import com.cloud.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;
    }

    public int addBooks(Books books) {
        return bookMapper.addBooks(books);
    }

    public int deleteBookById(int id) {
        return bookMapper.deleteBookById(id);
    }

    public Books queryBookById(int id) {
        return bookMapper.queryBookById(id);
    }

    public List<Books> queryAllBooks() {
        return bookMapper.queryAllBooks();
    }

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

编写Spring配置文件

spring整合dao层

在resources文件夹下新建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">

    <!--关联数据库配置文件-->
    <context:property-placeholder location="classpath:database.properties"/>

    <!--连接池
        dbcp:半自动化，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.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="${jdbc.driver}"/>
        <property name="jdbcUrl" value="${jdbc.url}"/>
        <property name="user" value="${jdbc.username}"/>
        <property name="password" value="${jdbc.password}"/>
    </bean>

    <!--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>

    <!--配置dao接口扫描包，动态实现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.cloud.dao"/>
    </bean>
</beans>

spring整合service层

在resources文件夹下新建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
       https://www.springframework.org/schema/context/spring-context.xsd">

    <!--扫描service下的包-->
    <context:component-scan base-package="com.cloud.service"/>
    <!--将所有的业务类注入到Spring，可以通过配置或者注解实现-->

    <!--声明事务配置-->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <!--注入数据源-->
        <property name="dataSource" ref="dataSource"/>
    </bean>

</beans>

整合springmvc

编写web.xml文件

如果创建项目时没有生成web.xml，右键项目添加web支持

java ssm maven简单项目 maven搭建ssm_java ssm maven简单项目_16

<?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">
    <!--DispatchServlet-->
    <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>

    <!--乱码过滤-->
    <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>
</web-app>
编写spring-mvc.xml文件

在resources文件夹下新建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/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">

    <!--注解驱动-->
    <mvc:annotation-driven/>
    <!--静态资源过滤-->
    <mvc:default-servlet-handler/>
    <!--扫描包：controller-->
    <context:component-scan base-package="com.cloud.controller"/>
    <!--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>

整合Spring配置文件

在resources文件夹下新建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 resource="spring-service.xml"/>
    <import resource="spring-mvc.xml"/>
</beans>

基本项目搭建完毕