SSM的环境搭建（整合Spring、SpringMVC、Mybatis框架）

忘是亡心i 2022-04-18 03:54 343阅读 0赞

本案例基于开发工具IDEA、MySQL，模拟查询学生类的信息

项目模块图：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3plYWw5cw_size_16_color_FFFFFF_t_70]  
MySQL中Student表  
![在这里插入图片描述][20181108095059611.png]  
（1）新建一个maven的web-app项目  
（2）新建test、java、resources文件夹，并对文件进行标记  
![在这里插入图片描述][20181108093054225.png]  
（3）将controller(控制包)、mapper（映射包）、model（模型包）、services(业务包的接口)、serviceImpl(业务包的实现包)等基本包建好，然后进行各文件的配置  
pom.xml(整合需//要的依赖,如果需要其他依赖，请前往Maven的中央仓库查找)

<?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">
        <parent>
            <artifactId>SpringMVC</artifactId>
            <groupId>SpringMVC</groupId>
            <version>1.0-SNAPSHOT</version>
        </parent>
        <modelVersion>4.0.0</modelVersion>
    
        <groupId>SSM</groupId>
        <artifactId>SSM</artifactId>
        <version>1.0-SNAPSHOT</version>
        <packaging>war</packaging>
    
        <name>SSM Maven Webapp</name>
        
        <url>http://www.example.com</url>
    
        <properties>
            <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
            <maven.compiler.source>1.7</maven.compiler.source>
            <maven.compiler.target>1.7</maven.compiler.target>
            
            <spring.version>4.3.10.RELEASE</spring.version>
        </properties>
    
        <dependencies>
            
            <dependency>
                <groupId>junit</groupId>
                <artifactId>junit</artifactId>
                <version>4.12</version>
                <scope>test</scope>
            </dependency>
            
            <dependency>
                <groupId>org.mybatis</groupId>
                <artifactId>mybatis</artifactId>
                <version>3.4.5</version>
            </dependency>
            
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
                <version>5.1.43</version>
            </dependency>
            
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-webmvc</artifactId>
                <version>${spring.version}</version>
            </dependency>
            
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-jdbc</artifactId>
                <version>${spring.version}</version>
            </dependency>
            
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-aspects</artifactId>
                <version>${spring.version}</version>
            </dependency>
            
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-context</artifactId>
                <version>${spring.version}</version>
            </dependency>
            
            <dependency>
                <groupId>org.mybatis</groupId>
                <artifactId>mybatis-spring</artifactId>
                <version>1.3.1</version>
            </dependency>
            
            <dependency>
                <groupId>com.mchange</groupId>
                <artifactId>c3p0</artifactId>
                <version>0.9.5.1</version>
            </dependency>
            
            <dependency>
                <groupId>javax.servlet</groupId>
                <artifactId>javax.servlet-api</artifactId>
                <version>4.0.0</version>
                <scope>provided</scope>
            </dependency>
        </dependencies>
    
        <build>
            <finalName>SSM</finalName>
            <pluginManagement>
                <plugins>
                    <plugin>
                        <artifactId>maven-clean-plugin</artifactId>
                        <version>3.0.0</version>
                    </plugin>
                    
                    <plugin>
                        <artifactId>maven-resources-plugin</artifactId>
                        <version>3.0.2</version>
                    </plugin>
                    <plugin>
                        <artifactId>maven-compiler-plugin</artifactId>
                        <version>3.7.0</version>
                    </plugin>
                    <plugin>
                        <artifactId>maven-surefire-plugin</artifactId>
                        <version>2.20.1</version>
                    </plugin>
                    <plugin>
                        <artifactId>maven-war-plugin</artifactId>
                        <version>3.2.0</version>
                    </plugin>
                    <plugin>
                        <artifactId>maven-install-plugin</artifactId>
                        <version>2.5.2</version>
                    </plugin>
                    <plugin>
                        <artifactId>maven-deploy-plugin</artifactId>
                        <version>2.8.2</version>
                    </plugin>
                </plugins>
            </pluginManagement>
        </build>
    </project>

先搭建SpringMVC的环境  
springmvc-config.xml

<?xml version="1.0" encoding="UTF-8"?>
    <beans xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context" 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 http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
        
        <context:component-scan base-package="com.zs"></context:component-scan>
        
        <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
            
            <property name="prefix" value="/"></property>
            <property name="suffix" value=".jsp"></property>
        </bean>
    </beans>

db.properties（连接数据库的配置文件）

#配置数据库的连接
    user=root
    password=1234
    jdbcUrl=jdbc:mysql://localhost:3306/zs?characterEncoding=utf-8
    dirverClass=com.mysql.jdbc.Driver
    initialPoolSize=3
    maxPoolSize=20

applicationContext-common.xml(spring的核心配置文件)

<?xml version="1.0" encoding="UTF-8"?>
    <beans xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop" 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 http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
        
        <context:property-placeholder location="classpath:db.properties"></context:property-placeholder>
    
        
        <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
            <property name="user" value="${user}"></property>
            <property name="password" value="${password}"></property>
            <property name="jdbcUrl" value="${jdbcUrl}"></property>
            <property name="driverClass" value="${dirverClass}"></property>
            <property name="initialPoolSize" value="${initialPoolSize}"></property>
            <property name="maxPoolSize" value="${maxPoolSize}"></property>
        </bean>
    
        
        <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
            
            <property name="dataSource" ref="dataSource"></property>
            
            <property name="typeAliasesPackage" value="com.zs.model"></property>
        </bean>
    
        
        <bean id="mapperScannerConfigurer" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
            <property name="basePackage" value="com.zs.mapper"></property>
        </bean>
    
        
        <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
            <property name="dataSource" ref="dataSource"></property>
        </bean>
    
        
        <tx:advice id="txAdvice" transaction-manager="transactionManager">
            <tx:attributes>
                
                <tx:method name="add*" propagation="REQUIRED"></tx:method>
                <tx:method name="delete*" propagation="REQUIRED"></tx:method>
                <tx:method name="update*" propagation="REQUIRED"></tx:method>
                
                <tx:method name="*" read-only="true"></tx:method>
            </tx:attributes>
        </tx:advice>
    
        
        <aop:config>
            
            <aop:pointcut id="pointCut" expression="execution(* com.zs.services.*.*(..))"></aop:pointcut>
            <aop:advisor advice-ref="txAdvice" pointcut-ref="pointCut"></aop:advisor>
        </aop:config>
    
    
    </beans>

web.xml(项目启动的配置文件)

<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd" >
    
    <web-app>
      <display-name>Archetype Created Web Application</display-name>
      
      <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:applicationContext-common.xml</param-value>
      </context-param>
      
      <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
      </listener>
      
      <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:springmvc-config.xml</param-value>
        </init-param>
      </servlet>
      <servlet-mapping>
        <servlet-name>SpringMVC</servlet-name>
        <url-pattern>*.action</url-pattern>
      </servlet-mapping>
    </web-app>

Student.java（学生模型类）

package com.zs.model;
    
    /** * @author 小思 * @PackageName:com.zs.model * @ClassName: Student * @Description:对应数据库的Studen表 * @date 2018/11/7 20:23 */
    public class Student { 
        private Integer sid;//学生的Id
        private String sname;//学生的姓名
        private String ssex;//学生的姓名
        private String sage;//学生的年龄
    
        public Integer getSid() { 
            return sid;
        }
    
        public void setSid(Integer sid) { 
            this.sid = sid;
        }
    
        public String getSname() { 
            return sname;
        }
    
        public void setSname(String sname) { 
            this.sname = sname;
        }
    
        public String getSsex() { 
            return ssex;
        }
    
        public void setSsex(String ssex) { 
            this.ssex = ssex;
        }
    
        public String getSage() { 
            return sage;
        }
    
        public void setSage(String sage) { 
            this.sage = sage;
        }
    
        public Student() { 
        }
    
        public Student(String sname, String ssex, String sage) { 
            this.sname = sname;
            this.ssex = ssex;
            this.sage = sage;
        }
    
        @Override
        public String toString() { 
            return "Student{" +
                    "sid=" + sid +
                    ", sname='" + sname + '\'' +
                    ", ssex='" + ssex + '\'' +
                    ", sage='" + sage + '\'' +
                    '}';
        }
    }

StudentMapper.java

package com.zs.mapper;
    
    import com.zs.model.Student;
    import org.apache.ibatis.annotations.Select;
    import org.springframework.stereotype.Service;
    
    import java.util.List;
    
    /** * @author 小思 * @PackageName:com.zs.mapper * @ClassName: StudentMapper * @Description:学生类的映射类（使用注解操作数据库） * @date 2018/11/7 20:23 */
    
    @Service("studentMapper")
    public interface StudentMapper { 
        //查询所有的学生
        @Select("select * from student")
        public List<Student> getAllStudent();
    }

StudentService.java

package com.zs.services;
    
    import com.zs.model.Student;
    import org.apache.ibatis.annotations.Select;
    import org.springframework.stereotype.Repository;
    
    import java.util.List;
    
    /** * @author 小思 * @PackageName:com.zs.services * @ClassName: StudentService * @Description:业务层的接口 * @date 2018/11/7 20:25 */
    public interface StudentService { 
        //查询所有的学生
        public List<Student> getAllStudent();
    }

StudentServiceImpl.java

package com.zs.services.Impl;
    
    import com.zs.mapper.StudentMapper;
    import com.zs.model.Student;
    import com.zs.services.StudentService;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Service;
    
    import java.util.List;
    
    /** * @author 小思 * @PackageName:com.zs.services.Impl * @ClassName: StudentServiceImpl * @Description:实现业务层的接口 * @date 2018/11/7 20:26 */
    @Service("studentMapper")
    public class StudentServiceImpl implements StudentService { 
        //根据返回类型自动注入
        @Autowired
        private StudentMapper studentMapper;
        @Override
        public List<Student> getAllStudent() { 
            return studentMapper.getAllStudent();
        }
    }

StudentController.java(项目的控制器)

package com.zs.controller;
    
    import com.zs.model.Student;
    import com.zs.services.StudentService;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Controller;
    import org.springframework.web.bind.annotation.RequestMapping;
    
    import javax.annotation.Resource;
    
    /** * @author 小思 * @PackageName:com.zs.controller * @ClassName: StudentController * @Description: * @date 2018/11/7 20:21 */
    @Controller
    public class StudentController { 
        @Resource(name = "studentService",type = com.zs.services.Impl.StudentServiceImpl.class)
        //@Autowired
        private StudentService studentService;
        @RequestMapping("getAllStudent")
        public String getAllStudent(){ 
            System.out.println("请求已经进入");
            System.out.println(studentService.getAllStudent().size());
            return "index";
        }
    
    }

（4）测试：将项目启动，在浏览器地址访问http://localhost:8080/getAllStudent.action，如果浏览器页面出现  
![在这里插入图片描述][20181108094656469.png]  
控制台出现  
![在这里插入图片描述][2018110809471299.png]

**说明项目搭建成功！**

**注意数据库连接配置文件修改为你自己的数据库配置**

**如果不使用以上的注解式开发**，用模型类的xml文件开发，则需要在mapper包下新建Student.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.zs.mapper.StudentMapper">
        
        <select id="getAllStudent" resultType="Student">
            select * from student
        </select>
    </mapper>

在pom.xml配置可以编译xml文件  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3plYWw5cw_size_16_color_FFFFFF_t_70 1]

applicationContext-common.xml在配置文件中的sqlSessionFactory部分添加代码：

<property name="mapperLocations" value="classpath:com/zs/mapper/*.xml"></property>

将StudentMapper.java文件的注解删除

重新发布项目即可。

# 搭建环境基本步骤： #

1）：导入所需依赖到pom.xml

2）：配置springmvc-config.xml

3）：配置数据库连接文件

4）：建各类的包controller（控制包）、mapper（映射包）、model（模型包）services（业务类接口包）、servicesImpl（业务接口实现包）

5）：建立spring的核心配置文件  
引入数据库配置文件–>配置数据库连接池c3p0–>配置sqlSessionFactory–>配置扫描Mapper包下的映射类–>配置事务管理器–>配置切面–>配置切点

6）：web.xml配置好springmvc（springMVC的核心的servlet）和spring（spring的上下文、spring的核心监听器）

**说在最后的话：编写实属不易，若喜欢或者对你有帮助记得点赞+关注或者收藏哦~**

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3plYWw5cw_size_16_color_FFFFFF_t_70]: /images/20220418/6fab5d31c4eb4bb1b25c666f0b36d93a.png
[20181108095059611.png]: /images/20220418/1804eb37fbb24e0f9b22293b934e6bfa.png
[20181108093054225.png]: /images/20220418/46d6cf7cca8a4caf97bf7cb5f0b609de.png
[20181108094656469.png]: /images/20220418/eddb2b2992dc4f618530542c7f512cdd.png
[2018110809471299.png]: /images/20220418/4513375965c64d1b8e9773e9e14c0893.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3plYWw5cw_size_16_color_FFFFFF_t_70 1]: /images/20220418/cf0d4aa317da4fc98f41b3cdf97dcc1b.png