maven(聚合)父子工程整合ssm
2022-12-20 本文已影响0人
晓晓_1931
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
