maven(聚合)父子工程整合ssm

作者: 晓晓_1931 | 来源:发表于2022-12-20 02:09 被阅读0次

一、创建数据库

create table dept
(
deptno integer(4) not null,
dname varchar(14),
loc varchar(13)
);
alter table dept add constraint pk_dept primary key (deptno);
create table emp
(
empno integer(4) not null,
ename varchar(10),
job varchar(9),
mgr integer(4),
hiredate date,
sal decimal(7,2),
comm decimal(7,2),
deptno integer(2)
);
alter table emp add constraint pk_emp primary key (empno);
alter table emp add constraint fk_deptno foreign key (deptno) references dept (deptno);
create table salgrade
(
grade integer(1),
losal decimal(7,2),
hisal decimal(7,2)
);
insert into DEPT (DEPTNO, DNAME, LOC) values (10, 'ACCOUNTING', 'NEW YORK');
insert into DEPT (DEPTNO, DNAME, LOC) values (20, 'RESEARCH', 'DALLAS');
insert into DEPT (DEPTNO, DNAME, LOC) values (30, 'SALES', 'CHICAGO');
insert into DEPT (DEPTNO, DNAME, LOC) values (40, 'OPERATIONS', 'BOSTON');
insert into SALGRADE (GRADE, LOSAL, HISAL) values (1, 700, 1200);
insert into SALGRADE (GRADE, LOSAL, HISAL) values (2, 1201, 1400);
insert into SALGRADE (GRADE, LOSAL, HISAL) values (3, 1401, 2000);
insert into SALGRADE (GRADE, LOSAL, HISAL) values (4, 2001, 3000);
insert into SALGRADE (GRADE, LOSAL, HISAL) values (5, 3001, 9999);
-- 下面要特别注意，%d-%m-%Y 里的 d 和 m 一定要小写
insert into EMP (EMPNO, ENAME, JOB, MGR, HIREDATE, SAL, COMM, DEPTNO)
values (7369, 'SMITH', 'CLERK', 7902, STR_TO_DATE('17-12-1980', '%d-%m-%Y'), 800.00, null, 20);
insert into EMP (EMPNO, ENAME, JOB, MGR, HIREDATE, SAL, COMM, DEPTNO)
values (7499, 'ALLEN', 'SALESMAN', 7698, STR_TO_DATE('20-02-1981', '%d-%m-%Y'), 1600.00, 300.00, 30);
insert into EMP (EMPNO, ENAME, JOB, MGR, HIREDATE, SAL, COMM, DEPTNO)
values (7521, 'WARD', 'SALESMAN', 7698, STR_TO_DATE('22-02-1981', '%d-%m-%Y'), 1250.00, 500.00, 30);
insert into EMP (EMPNO, ENAME, JOB, MGR, HIREDATE, SAL, COMM, DEPTNO)
values (7566, 'JONES', 'MANAGER', 7839, STR_TO_DATE('02-04-1981', '%d-%m-%Y'), 2975.00, null, 20);
insert into EMP (EMPNO, ENAME, JOB, MGR, HIREDATE, SAL, COMM, DEPTNO)
values (7654, 'MARTIN', 'SALESMAN', 7698, STR_TO_DATE('28-09-1981', '%d-%m-%Y'), 1250.00, 1400.00, 30);
insert into EMP (EMPNO, ENAME, JOB, MGR, HIREDATE, SAL, COMM, DEPTNO)
values (7698, 'BLAKE', 'MANAGER', 7839, STR_TO_DATE('01-05-1981', '%d-%m-%Y'), 2850.00, null, 30);
insert into EMP (EMPNO, ENAME, JOB, MGR, HIREDATE, SAL, COMM, DEPTNO)
values (7782, 'CLARK', 'MANAGER', 7839, STR_TO_DATE('09-06-1981', '%d-%m-%Y'), 2450.00, null, 10);
insert into EMP (EMPNO, ENAME, JOB, MGR, HIREDATE, SAL, COMM, DEPTNO)
values (7788, 'SCOTT', 'ANALYST', 7566, STR_TO_DATE('19-04-1987', '%d-%m-%Y'), 3000.00, null, 20);
insert into EMP (EMPNO, ENAME, JOB, MGR, HIREDATE, SAL, COMM, DEPTNO)
values (7839, 'KING', 'PRESIDENT', null, STR_TO_DATE('17-11-1981', '%d-%m-%Y'), 5000.00, null, 10);
insert into EMP (EMPNO, ENAME, JOB, MGR, HIREDATE, SAL, COMM, DEPTNO)
values (7844, 'TURNER', 'SALESMAN', 7698, STR_TO_DATE('08-09-1981', '%d-%m-%Y'), 1500.00, 0.00, 30);
insert into EMP (EMPNO, ENAME, JOB, MGR, HIREDATE, SAL, COMM, DEPTNO)
values (7876, 'ADAMS', 'CLERK', 7788, STR_TO_DATE('23-05-1987', '%d-%m-%Y'), 1100.00, null, 20);
insert into EMP (EMPNO, ENAME, JOB, MGR, HIREDATE, SAL, COMM, DEPTNO)
values (7900, 'JAMES', 'CLERK', 7698, STR_TO_DATE('03-12-1981', '%d-%m-%Y'), 950.00, null, 30);
insert into EMP (EMPNO, ENAME, JOB, MGR, HIREDATE, SAL, COMM, DEPTNO)
values (7902, 'FORD', 'ANALYST', 7566, STR_TO_DATE('03-12-1981', '%d-%m-%Y'), 3000.00, null, 20);
insert into EMP (EMPNO, ENAME, JOB, MGR, HIREDATE, SAL, COMM, DEPTNO)
values (7934, 'MILLER', 'CLERK', 7782, STR_TO_DATE('23-01-1982', '%d-%m-%Y'), 1300.00, null, 10);

二、创建maven工程(maven project),打包方式为pom

ssm父工程pom.xml

<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 
https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.xx</groupId>
    <artifactId>elm</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>pom</packaging>
    <!-- 这块创建子module时候会自动生成 -->
    <modules>
        <module>controller</module>
        <module>service</module>
        <module>dao</module>
    </modules>
    <!-- 主要还是导入ssm整合依赖 -->
    <properties>
        <spring.version>5.2.8.RELEASE</spring.version>
    </properties>
    <dependencies>
        <!-- 此依赖会关联引用Spring中的所有基础jar包 -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <!-- SpringMVC的jar包 （会依赖spring-web）-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <!-- Spring支持jdbc的jar包（会依赖 spring-tx事务jar包） -->
        <dependency>  
              <groupId>org.springframework</groupId>  
              <artifactId>spring-jdbc</artifactId>  
              <version>${spring.version}</version>  
        </dependency>
        <!-- aspectj依赖jar包 -->
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjweaver</artifactId>
            <version>1.8.7</version>
        </dependency>
        <!-- jackson依赖jar包 -->
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>2.9.0</version>
        </dependency>
        <!--mybatis 依赖包 -->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.5.1</version>
        </dependency>
        <!-- mybatis-spring 依赖包 -->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>2.0.0</version>
        </dependency>
        <!-- mysql驱动 依赖包 -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.22</version>
        </dependency>
    </dependencies>
    
    
    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-war-plugin</artifactId>
                <version>3.3.1</version> <!-- 为了打war包的子工程不报错 -->
            </plugin>
        </plugins>
    </build>
</project>

三、分别创建子model(maven module)

controller层子module(打包方式为war包)
controller层pom.xml

<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 
https://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <!-- 引入父工程坐标 -->
  <parent>
    <groupId>com.xx</groupId>
    <artifactId>elm</artifactId>
    <version>0.0.1-SNAPSHOT</version>
  </parent>
  <!-- 打包方式为war包-->
  <artifactId>controller</artifactId>
  <packaging>war</packaging>
   
  <!-- 需要引入service模块坐标  -->
   <dependencies>
      <dependency>
          <groupId>com.xx</groupId>
          <artifactId>service</artifactId>
          <version>0.0.1-SNAPSHOT</version>
      </dependency>
  </dependencies>
</project>

service层子module(打包方式为jar包)
service层pom.xml

<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 
https://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <!-- 引入父工程坐标 -->
  <parent>
    <groupId>com.xx</groupId>
    <artifactId>elm</artifactId>
    <version>0.0.1-SNAPSHOT</version>
  </parent>
  <!-- 打包方式为jar包-->
  <artifactId>service</artifactId>
  
  <!-- 需要引入service模块坐标 -->
  <dependencies>
      <dependency>
          <groupId>com.xx</groupId>
          <artifactId>dao</artifactId>
          <version>0.0.1-SNAPSHOT</version>
      </dependency>
  </dependencies>
</project>

dao层子module(打包方式为jar包)
dao层pom.xml

<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 
https://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
   <!-- 引入父工程坐标 -->
  <parent>
    <groupId>com.xx</groupId>
    <artifactId>elm</artifactId>
    <version>0.0.1-SNAPSHOT</version>
  </parent>
  <!-- 打包方式为jar包-->
  <artifactId>dao</artifactId>
</project>

四、整合用的配置文件

在controller子模块需要创建web.xml，并在类路径下放spring-mvc.xml

spring-mvc.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:aop="http://www.springframework.org/schema/aop"
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    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
                        http://www.springframework.org/schema/aop
                        http://www.springframework.org/schema/aop/spring-aop.xsd
                        http://www.springframework.org/schema/mvc
                        http://www.springframework.org/schema/mvc/spring-mvc.xsd">
    <mvc:annotation-driven />
    <context:component-scan base-package="com.xx.ssm.controller" />
</beans>

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="http://java.sun.com/xml/ns/javaee"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
    version="2.5">
    <display-name>controller</display-name>
    <!-- Spring整合web项目用的ServletContext监听器 -->
    <listener>
        <listener-class>
            org.springframework.web.context.ContextLoaderListener
        </listener-class>
    </listener>
    <!-- 指定spring配置文件路径，默认加载 /WEB-INF/applicationContext.xml -->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:applicationContext.xml</param-value>
    </context-param>
    <!-- spring mvc servlet-->  
    <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:spring-mvc.xml</param-value>  
        </init-param>  
        <load-on-startup>1</load-on-startup>   
    </servlet>  
    <servlet-mapping>  
        <servlet-name>SpringMVC</servlet-name>  
        <!-- 此处也可以配置成 *.do 形式 -->  
        <url-pattern>/</url-pattern>  
    </servlet-mapping> 
</web-app>

在service子模块的类路径下放applicationContext.xml和db.properties

applicationContext.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: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/context 
                        http://www.springframework.org/schema/context/spring-context.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">
    <!--开启注解扫描，设置需要扫描的包  -->
    <context:component-scan base-package="com.xx.ssm.service"/>
    <!-- 引入db配置文件 -->
    <context:property-placeholder
        location="classpath:db.properties" />
    <!-- 配置dataSource数据源 -->
    <bean id="dataSource"
        class="org.springframework.jdbc.datasource.DriverManagerDataSource">
        <property name="driverClassName" value="${jdbc.driver}"></property>
        <property name="url" value="${jdbc.url}"></property>
        <property name="username" value="${jdbc.username}"></property>
        <property name="password" value="${jdbc.password}"></property>
    </bean>
    <!-- 创建SqlSessionFactory，并配置实体对象别名 -->
    <bean id="sqlSessionFactory"
        class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"></property>
        <property name="typeAliasesPackage"
            value="com.xx.ssm.po" />
    </bean>
    <!-- 配置Mapper。自动扫描Mapper接口，并为其注入SqlSessionFactory -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.xx.ssm.mapper"></property>
        <property name="sqlSessionFactoryBeanName"
            value="sqlSessionFactory"></property>
    </bean>
    <!-- 配置Spring提供的事务管理器 -->
    <bean id="transactionManager"
        class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"></property>
    </bean>
    <!-- 开启注解事务 -->
    <tx:annotation-driven
        transaction-manager="transactionManager" />
</beans>

db.properties:

jdbc.driver=com.mysql.cj.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/emp?characterEncoding=utf-8&serverTimezone=UTC
jdbc.username=root
jdbc.password=root

dao子模块什么配置文件都不放

五、创建各模块需要的java类

controller模块控制类：

package com.xx.ssm.controller; 

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
 
import com.xx.ssm.po.Dept;
import com.xx.ssm.service.DeptService; 
@Controller
public class DeptController {

    @Autowired
    @Qualifier("deptServiceImpl")
    private DeptService deptService;

    @ResponseBody
    @RequestMapping("/getDeptBy")
    public  List<Dept>  getDeptBy() throws Exception{
        return deptService.getDeptBy();
    }
}

service模块接口和实现类

package com.xx.ssm.service;

import java.util.List;

import com.xx.ssm.po.Dept;

public interface DeptService {
    public Dept getDeptById(Integer deptno);

    public List<Dept> getDeptBy();
}

package com.xx.ssm.service.impl;
import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import com.xx.ssm.mapper.DeptMapper;
import com.xx.ssm.po.Dept;
import com.xx.ssm.service.DeptService;
@Service
public class DeptServiceImpl implements DeptService{

    @Autowired
    private DeptMapper deptMapper;

    @Override 
    public Dept getDeptById(Integer deptno) {
        return deptMapper.getDeptById(deptno);
    } 
    @Override
    public List<Dept> getDeptBy() { 
        return deptMapper.getDeptBy();
    } 
}

dao模块接口和实体类

package com.xx.ssm.mapper;
import java.util.List;

import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select;

import com.xx.ssm.po.Dept;
@Mapper
public interface DeptMapper {
    @Select("select * from dept where deptno = #{deptno}")
    public Dept getDeptById(int deptno);
    @Select("select * from dept")
    public List<Dept> getDeptBy();
}

package com.xx.ssm.po;

public class Dept {
      private Integer deptno;
      private String dname;
      private String loc;
    public Integer getDeptno() {
        return deptno;
    }
    public void setDeptno(Integer deptno) {
        this.deptno = deptno;
    }
    public String getDname() {
        return dname;
    }
    public void setDname(String dname) {
        this.dname = dname;
    }
    public String getLoc() {
        return loc;
    } 
    public void setLoc(String loc) {
        this.loc = loc;
    }
    @Override
    public String toString() {
        return "Dept [deptno=" + deptno + ", dname=" + dname + ", loc=" + loc + "]";
    }
}

整体目录结构

image.png

启动项目

右键工程以服务器启动
本地访问地址： http://localhost:8080/controller/getDeptBy

maven(聚合)父子工程整合ssm

一、创建数据库

二、创建maven工程(maven project),打包方式为pom

三、分别创建子model(maven module)

四、整合用的配置文件

spring-mvc.xml：

web.xml

applicationContext.xml:

db.properties:

dao子模块什么配置文件都不放

五、创建各模块需要的java类

controller模块控制类：

service模块接口和实现类

dao模块接口和实体类

整体目录结构

启动项目

相关文章

网友评论

延伸阅读

深度阅读

栏目导航

热点阅读

maven(聚合)父子工程整合ssm

一、创建数据库

二、创建maven工程(maven project),打包方式为pom

三、分别创建子model(maven module)

四、整合用的配置文件

spring-mvc.xml：

web.xml

applicationContext.xml:

db.properties:

dao子模块什么配置文件都不放

五、创建各模块需要的java类

controller模块 控制类：

service模块 接口和实现类

dao模块 接口和实体类

整体目录结构

启动项目

相关文章

网友评论

延伸阅读

深度阅读

栏目导航

热点阅读

controller模块控制类：

service模块接口和实现类

dao模块接口和实体类