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用ssm框架开发web项目配置

程序员文章站 2024-01-15 22:21:58
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1.用maven创建一个普通的项目
用ssm框架开发web项目配置
一路next下去。创建好之后项目结构如下图。
用ssm框架开发web项目配置
2.我们先把依赖和静态文件导出问题写入pom.xml文件中

  <?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>louge</groupId>
    <artifactId>ssmbuild</artifactId>
    <version>1.0-SNAPSHOT</version>
    <!-- 依赖：junit,数据库驱动，连接池，servlet，jsp，mybatis，mybatis-spring，spring-->
    <dependencies>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.21</version>
        </dependency>
        <dependency>
            <groupId>com.mchange</groupId>
            <artifactId>c3p0</artifactId>
            <version>0.9.5.2</version>
        </dependency>
        <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>
        <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>
        <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>
        <!--lombok可以让我们在实体类中通过注解方法生成成员变量getter、setter方法，构造方法等-->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.16.10</version>
        </dependency>
        <!-- jackson依赖-->
    <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-databind</artifactId>
        <version>2.10.0</version>
    </dependency>

    </dependencies>
    <!--静态资源导出问题 -->
    <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>
</project>

3.下面完成mybatis框架的配置
补充目录结构如下用ssm框架开发web项目配置
（1)pojo中BookMapper类

package com.louge.dao;

import com.louge.pojo.books;

import java.util.List;

public interface BookMapper {
    //增加一本书
    int addBook(books books);
    //删除一本书
    int deleteBook(int id);
    //更新一本书
    int updateBookById(books books);
    //查询一本书
    books queryBookById(int id);
    //查询全部的书
    List<books> queryAllBook();
}

(2)BookMapper.xml

<?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.louge.dao.BookMapper">
    <!--id名跟接口里面的方法名一致-->
    <insert id="addBook" parameterType="books">
insert into ssmbuild.books(bookID, bookName, detail, bookCounts)
values(#{bookID},#{bookName},#{detail},#{bookCounts});
</insert>
    <delete id="deleteBook" parameterType="int">
        delete * from ssmbuild.books where bookID=#{bookID}
    </delete>
    <update id="updateBook" parameterType="books">
        update ssmbuild.books
        set bookCounts=#{bookCounts},bookName=#{bookName}
        where bookID=#{bookID}
    </update>
    <select id="queryBookById" parameterType="int" resultType="books">
        select * from ssmbuild.books where bookID=#{bookID}
    </select>
    <select id="queryAllBook" resultType="books">
        select * from ssmbuild.books
    </select>
</mapper>

(3)service层Bookservice

import java.util.List;

public interface BookService {
    //增加一本书
    int addBook(books books);
    //删除一本书
    int deleteBook(int id);
    //更新一本书
    int updateBookById(books books);
    //查询一本书
    books queryBookById(int id);
    //查询全部的书
    List<books> queryAllBook();
}

(4)BookServiceImpl

package com.louge.service;

import com.louge.dao.BookMapper;
import com.louge.pojo.books;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;

import java.util.List;

public class BookServiceImpl implements BookService{
    private BookMapper bookMapper;
    public int addBook(books books) {
        return bookMapper.addBook(books);
    }

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

    public int updateBookById(books books) {
        return bookMapper.updateBookById(books);
    }

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

    public List<books> queryAllBook() {
        return bookMapper.queryAllBook();
    }
}

(5)database.properties

jdbc.driver=com.mysql.jdbc.Driver
#如果使用mysql8.0+，增加一个时区的配置&serverTimezone=Asia/Shanghai
jdbc.url=jdbc:mysql://localhost:3306/ssmbuild?useSSL=true&useUnicode=true&characterEncoding=utf8&serverTimezone=Asia/Shanghai
jdbc.username=root
jdbc.password=Woshilouge123!

(6)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>
    <!--配置数据源，交给spring去做-->
    
    <typeAliases>
        <package name="com.louge.pojo"/>
    </typeAliases>
    <mappers>
        <mapper class="com.louge.dao.BookMapper"/>
    </mappers>
</configuration>

（7）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:aop="http://www.springframework.org/schema/aop"
       xmlns:tx="http://www.springframework.org/schema/tx" xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd">
    <!-- 关联数据库配置文件-->
    <context:property-placeholder location="classpath:database.properties"/>
    <!--连接池
    dbcp:半自动化操作
    c3p0：自动化操作（自动化加载配置文件，并且自动设置到对象中）
    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}"/>
        <!--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"/>
        <!--当获取连接失败次数-->
        <property name="acquireRetryAttempts" value="2"/>
    </bean>
    <!--sqlSessionFactory-->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
    <property name="dataSource" ref="dataSource"/>
    <!--绑定mybatis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.louge.dao"/>
    </bean>

</beans>

4.加入web目录结构
用ssm框架开发web项目配置
5.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">
    <!--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>
     <!--跟上面servlet名字对应-->
        <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>

    <!--Session-->
    <session-config>
        <session-timeout>15</session-timeout>
    </session-config>
</web-app>

6.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
        http://www.springframework.org/schema/mvc/spring-mvc.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context.xsd">

    <!-- 启动mvc注解驱动 -->
    <mvc:annotation-driven />
    <!-- 静态资源过滤 -->
    <mvc:default-servlet-handler/>
    <!-- 配置扫描的包 -->
    <context:component-scan base-package="com.louge.controller"/>

    <!-- 配置视图解析器 -->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/jsp/"></property>
        <property name="suffix" value=".jsp"></property>
    </bean>
</beans>

7.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-3.0.xsd">
<import resource="classpath:spring-dao.xml"/>
<import resource="classpath:spring-mvc.xml"/>
<import resource="classpath:spring-service.xml"/>
</beans>

8.将项目放到tomcat上运行
要注意我们一开始用maven创建项目的时候没有用webapp模板创建，所以点击用ssm框架开发web项目配置
打开之后，选中Artifacts,在WEB-INF下创建一个lib文件夹放入我们在pom.xml中引入的依赖的jar包添加用ssm框架开发web项目配置
9.经过上面配置之后我们就可以通过ssm框架开发一个web项目，之后只要写jsp页面和controller控制器就行。
附上：完整的项目目录结构
用ssm框架开发web项目配置
用ssm框架开发web项目配置

相关标签： java框架 ssm

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