整合SSM框架

最新推荐文章于 2023-06-28 23:02:44 发布

~小辉辉

最新推荐文章于 2023-06-28 23:02:44 发布

阅读量2.7k

点赞数

CC 4.0 BY-SA版权

分类专栏： java 文章标签： ssm java

本文链接：https://blog.youkuaiyun.com/weixin_43694144/article/details/84946185

java 专栏收录该内容

23 篇文章

订阅专栏

本文详细介绍了Spring、Spring MVC和MyBatis（SSM）框架的整合过程，包括pom.xml依赖配置、applicationContext.xml和springmvc.xml配置、mybatis-conf.xml设置、log4j日志配置，以及实体类、DAO层、Service层、Controller层的具体实现。

1
pom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.id.ssm</groupId>
  <artifactId>2018-12-10-ssm</artifactId>
  <version>1.0-SNAPSHOT</version>
  <packaging>war</packaging>
<dependencies>
    <dependency>
        <!--junit4的依赖 -->
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>4.12</version>
    </dependency>
    <dependency>
        <!--log4的依赖-->
        <groupId>log4j</groupId>
        <artifactId>log4j</artifactId>
        <version>1.2.17</version>
    </dependency>
    <dependency>
        <!--mysql的依赖-->
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>5.1.39</version>
    </dependency>
    <dependency>
        <!--c3p0连接池依赖-->
        <groupId>com.mchange</groupId>
        <artifactId>c3p0</artifactId>
        <version>0.9.5.2</version>
    </dependency>
    <dependency>
        <!--mybatis依赖-->
        <groupId>org.mybatis</groupId>
        <artifactId>mybatis</artifactId>
        <version>3.4.4</version>
    </dependency>
    <dependency>
        <!--spring整合mybatis的依赖-->
        <groupId>org.mybatis</groupId>
        <artifactId>mybatis-spring</artifactId>
        <version>1.3.1</version>
    </dependency>
    <dependency>
        <!--spring的jdbc模块-->
        <groupId>org.springframework</groupId>
        <artifactId>spring-jdbc</artifactId>
        <version>4.3.10.RELEASE</version>
    </dependency>
    <dependency>
        <!--导入spring依赖-->
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc</artifactId>
        <version>4.3.10.RELEASE</version>
    </dependency>
    <dependency>
        <!--spring整合单元测试的依赖-->
        <groupId>org.springframework</groupId>
        <artifactId>spring-test</artifactId>
        <version>4.3.10.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>javax.servlet-api</artifactId>
        <version>3.0.1</version>
    </dependency>
    <dependency>
        <groupId>jstl</groupId>
        <artifactId>jstl</artifactId>
        <version>1.2</version>
    </dependency>
    <dependency>
        <groupId>taglibs</groupId>
        <artifactId>standard</artifactId>
        <version>1.1.2</version>
    </dependency>
    <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-databind</artifactId>
        <version>2.9.6</version>
    </dependency>
    <dependency>
        <!--json的依赖-->
        <groupId>com.alibaba</groupId>
        <artifactId>fastjson</artifactId>
        <version>1.1.15</version>
    </dependency>

</dependencies>
    <build>
        <resources>
            <resource>
                <directory>src/main/java</directory>
                <includes>
                    <include>**/*.xml</include>
                </includes>
                <filtering>false</filtering>
            </resource>

        </resources>
    </build>

</project>

2 applicotionContext.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">

    <!--Spring的注解扫描器-->
    <context:component-scan base-package="com.it.ssm"/>

    <!-- 配置c3p0连接池 -->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="com.mysql.jdbc.Driver"/>
        <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/db2?characterEncoding=utf8"/>
        <property name="user" value="root"/>
        <property name="password" value="root"/>
    </bean>

    <!--mybatis整合spring-->
    <bean name="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>
        <property name="configLocation" value="classpath:mybatis-conf.xml"/>
    </bean>

    <!--mapper扫描器    bean的id为mapper类名首字母小写-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.it.ssm.dao"/>
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
    </bean>
</beans>

3 springmvc.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"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xmlns:tx="http://www.springframework.org/schema/tx"
       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/aop
                           http://www.springframework.org/schema/aop/spring-aop.xsd
                           http://www.springframework.org/schema/tx
                           http://www.springframework.org/schema/tx/spring-tx.xsd
                           http://www.springframework.org/schema/mvc
                           http://www.springframework.org/schema/mvc/spring-mvc.xsd">

    <!--配置前端控制器(在web.xml中配置)-->
    <!--配置处理器映射器-->
    <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping"/>
    <!--处理器适配器-->
    <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter"/>
    <!--配置视图解析器-->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"/>
    <context:component-scan base-package="com.it.ssm"/>
</beans>

4 mybatis-conf.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.it.ssm.pojo"></package>
    </typeAliases>
    <!--在此不需要的原因是,我们在Spring中使用了c3p0的连接池对象-->
    <!--<environments default="development">-->
    <!--<environment id="development">-->
    <!--<transactionManager type="JDBC"></transactionManager>-->
    <!--<dataSource type="POOLED">-->
    <!--<property name="driver" value="com.mysql.jdbc.Driver"/>-->
    <!--<property name="url" value="jdbc:mysql://localhost:3306/up2?characterEncoding=utf8"/>-->
    <!--<property name="username" value="root"/>-->
    <!--<property name="password" value="root"/>-->
    <!--</dataSource>-->
    <!--</environment>-->
    <!--</environments>-->

    <!--<mappers>-->
    <!--不需要的原因是,Spring中使用了mapper扫描器-->
    <!--<package name="com.uplooking.ssm.mapper"></package>-->
    <!--</mappers>-->

</configuration>

5 log4j.properties

log4j.rootLogger=warn, stdout
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d{ABSOLUTE} %5p %c{1}:%L - %m%n

java的目录与结构

在这里插入图片描述 1 Pojo User.java 文件是实体类数据库的字段 get set tostring 方法

2 dao
UserMapper

package com.it.ssm.dao;

import com.it.ssm.pojo.User;
import org.springframework.stereotype.Repository;

@Repository
public interface UserMapper
{
    User findUser(Integer id);
    void addUser(Integer id , String name, String emil);
}

UserMapper.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="com.it.ssm.dao.UserMapper">
    <insert id="addUser">
        insert into user values(id=#{id},name=#{name},emil=#{emil})
    </insert>
    <select id="findUser" resultType="User">
        select * from user where id=#{vlue};
    </select>
</mapper>

Service + impl

package com.it.ssm.service;

import com.it.ssm.dao.UserMapper;
import com.it.ssm.pojo.User;
import org.springframework.beans.factory.annotation.Autowired;

public interface UserService
{
    User findElsect(Integer id);
}



package com.it.ssm.service.impl;

import com.it.ssm.dao.UserMapper;
import com.it.ssm.pojo.User;
import com.it.ssm.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
public class UserServiceImpl implements UserService
{
    @Autowired
    private UserMapper userMapper;
    @Override
    public User findElsect(Integer id)
    {
        return userMapper.findUser(id);
    }
}

Controller

package com.it.ssm.controller;

import com.it.ssm.pojo.User;
import com.it.ssm.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
public class UserController
{
    @Autowired
    private UserService userService;

    @RequestMapping("/findUser.action")
    public String findUser(Integer id , Model model)
    {
        User user = userService.findElsect(id);
        model.addAttribute("user",user);
        return "index01.jsp";
    }

}

~~~以上就是整合ssm的相关代码  如有错误请及时指出