思路
- (1)创建数据库,以及导入数据
- (2)创建父工程export_parent
- (3)创建子模块
export_dao
: dao层接口
export_domain
: 实体类对象
export_service
: 实现层
export_web
: 控制以及前端界面 - (4)导入父工程依赖 以及 模块与模块之间的依赖
- (5)编写代码
创建数据库
导入sql脚本,执行
创建父工程
新建project 不要用maven模板,直接创建
创建子模块
每个模块创键完 一定要在maven中clear insert下,并且删除pom.xml中的多余的依赖
exprot_dao
直接创建,也是不用勾选
maven模板,在java目录下新建包
把pom.xml
下的
exprot_domain
和dao层一样,建好模块后 新建
com.wlj.domain.company
exprot_service
exprot_web
选择webapp
依赖配置
父工程的pom.xml
中 删除多余依赖,添加下面的依赖
<!-- 定义依赖的版本号 -->
<properties>
<junit.version>4.12</junit.version>
<spring.version>5.2.9.RELEASE</spring.version>
<pagehelper.version>5.1.8</pagehelper.version>
<servlet-api.version>2.5</servlet-api.version>
<dubbo.version>2.8.4</dubbo.version>
<zookeeper.version>3.4.7</zookeeper.version>
<zkclient.version>0.1</zkclient.version>
<mybatis.version>3.4.5</mybatis.version>
<mybatis.spring.version>1.3.1</mybatis.spring.version>
<mybatis.paginator.version>1.2.15</mybatis.paginator.version>
<mysql.version>5.1.32</mysql.version>
<druid.version>1.0.9</druid.version>
<commons-fileupload.version>1.3.1</commons-fileupload.version>
<jackson.version>2.9.5</jackson.version>
</properties>
<!-- 定义依赖 -->
<dependencies>
<!-- Spring -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${spring.version}</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>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- Dubbo依赖包 -->
<dependency>
<groupId>javassist</groupId>
<artifactId>javassist</artifactId>
<version>3.11.0.GA</version>
</dependency>
<dependency>
<groupId>commons-codec</groupId>
<artifactId>commons-codec</artifactId>
<version>1.10</version>
</dependency>
<!--web基础包 -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>2.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!-- Mybatis -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>${mybatis.version}</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>${mybatis.spring.version}</version>
</dependency>
<!-- mybatis分页插件 -->
<dependency>
<groupId>com.github.miemiedev</groupId>
<artifactId>mybatis-paginator</artifactId>
<version>${mybatis.paginator.version}</version>
</dependency>
<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper</artifactId>
<version>${pagehelper.version}</version>
</dependency>
<!-- MySql -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>${mysql.version}</version>
</dependency>
<!-- 连接池 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>${druid.version}</version>
</dependency>
<!-- 文件上传组件 -->
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>${commons-fileupload.version}</version>
</dependency>
<!-- spring整合rabbitmq -->
<dependency>
<groupId>org.springframework.amqp</groupId>
<artifactId>spring-rabbit</artifactId>
<version>2.0.1.RELEASE</version>
</dependency>
<!-- xml解析器通用包:CXF WebService框架 -->
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpcore</artifactId>
<version>4.4.4</version>
</dependency>
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
<version>4.5.3</version>
</dependency>
<dependency>
<groupId>dom4j</groupId>
<artifactId>dom4j</artifactId>
<version>1.6.1</version>
</dependency>
<dependency>
<groupId>xml-apis</groupId>
<artifactId>xml-apis</artifactId>
<version>1.4.01</version>
</dependency>
<!--shiro-->
<!--shiro和spring整合-->
<dependency>
<groupId>org.apache.shiro</groupId>
<artifactId>shiro-spring</artifactId>
<version>1.3.2</version>
</dependency>
<!--shiro核心包-->
<dependency>
<groupId>org.apache.shiro</groupId>
<artifactId>shiro-core</artifactId>
<version>1.3.2</version>
</dependency>
<!--测试-->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<!-- jackson支持包 -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>${jackson.version}</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>${jackson.version}</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>${jackson.version}</version>
</dependency>
<!--日志包-->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>1.7.25</version>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
</dependencies>
dao依赖domain
在dao模块下的pom.xml
中添加
<dependencies>
<dependency>
<artifactId>export_domain</artifactId>
<!-- 这里写自己的包名!!!!!-->
<groupId>com.wlj</groupId>
<version>1.0-SNAPSHOT</version>
</dependency>
</dependencies>
service依赖dao
在service模块下的pom.xml
中添加
<dependencies>
<dependency>
<artifactId>export_dao</artifactId>
<groupId>com.wlj</groupId>
<version>1.0-SNAPSHOT</version>
</dependency>
</dependencies>
web依赖service
在web模块下的pom.xml
中添加
<dependencies>
<dependency>
<artifactId>export_system_service</artifactId>
<groupId>com.wzx</groupId>
<version>1.0-SNAPSHOT</version>
</dependency>
</dependencies>
代码编写
Dao层
文件结构
ICompanyDao.java
public interface ICompanyDao {
//查询所有的公司记录
//select * from ss_company
List<Company> findAll();
}
ICompanyDao.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" >
<!--namespace: 需要映射的Dao接口类型-->
<mapper namespace="com.wlj.dao.company.ICompanyDao">
<resultMap id="companyMap" type="company">
<id column="id" property="id"></id>
<result column="expiration_date" property="expirationDate"/>
<result column="license_id" property="licenseId"/>
<result column="company_size" property="companySize"/>
</resultMap>
<select id="findAll" resultMap="companyMap">
select * from ss_company
</select>
</mapper>
ICompanyDaoTest.java
//spring的junit测试的两个注解
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration("classpath:spring/applicationContext-dao.xml")
public class ICompanyDaoTest {
//可以通过@Autowrie 去 spring中获取dao的实现类对象
@Autowired
ICompanyDao iCompanyDao;//=new 实现类()
@Test
public void findAll() {
System.out.println(iCompanyDao);
//返回所有的企业
List<Company> list = iCompanyDao.findAll();
System.out.println(list);
}
}
db.properties
# key=value
jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://127.0.0.1:3306/saas-export?characterEncoding=utf-8
jdbc.username=root
jdbc.password=123456
domain
创建实体类 以及构造方法,get set toString方法
Company.java
public class Company {
/**
* 对象唯一标记,对应数据库主键
*/
private String id;
/**
* 公司名称
*/
private String name;
/**
* 到期时间
*/
private Date expirationDate;
/**
* 公司地址
*/
private String address;
/**
* 营业执照
*/
private String licenseId;
/**
* 法人代表
*/
private String representative;
/**
* 公司电话
*/
private String phone;
/**
* 公司规模
*/
private String companySize;
/**
* 所属行业
*/
private String industry;
/**
* 备注
*/
private String remarks;
/**
* 状态
*/
private Integer state;
/**
* 当前余额
*/
private Double balance;
/**
* 城市
*/
private String city;
service层
代码结构
ICompanyService.java
public interface ICompanyService {
List<Company> findAll();
}
CompanyServiceImpl.java
@Service
public class CompanyServiceImpl implements ICompanyService{
@Autowired
ICompanyDao iCompanyDao;
public List<Company> findAll() {
return iCompanyDao.findAll();
}
}
ICompanyServiceTest.java
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration("classpath*:spring/applicationContext-*.xml")
public class ICompanyServiceTest {
@Autowired
ICompanyService service;
@Test
public void test01(){
//1:编写了业务逻辑的测试
//等号 左边是接口 右边是实现类
//ICompanyService service = new CompanyServiceImpl();
List<Company> list = service.findAll();
System.out.println(list);
}
}
web控制层
CompanyController.java
@Controller
@RequestMapping("/company")
public class CompanyController {
private static final Logger l = LoggerFactory.getLogger(CompanyController.class);
@Autowired
ICompanyService iCompanyService;
//list.action -> list
@RequestMapping(path="/list.do",method = RequestMethod.GET)
@ResponseBody
public Object list(Model model){
List<Company> list = iCompanyService.findAll();
//打印重要数据
l.info("list list="+list);
model.addAttribute("list",list);
return list;
}
}
spring/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: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/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">
<!--1.扫描Controller所在包-->
<context:component-scan base-package="com.wlj.web"/>
<!--2.视图解析器-->
<!-- success 查找文件 /WEB-INF/pages/success.jsp -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<!--2.1 前缀-->
<property name="prefix" value="/WEB-INF/pages/"/>
<!--2.2 后缀-->
<property name="suffix" value=".jsp"/>
</bean>
<!--3.mvc注解驱动-->
<!--3. 把转换器工厂放入到注解驱动,才会生效的 @RequestMapping @ResponseBody @RequestBody-->
<mvc:annotation-driven />
</beans>
log4j.properties
log4j.rootLogger=debug, stdout, logfile
log4j.category.org.springframework=info
#log4j.category.org.apache=INFO
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d %p [%c] - %m%n
log4j.appender.logfile=org.apache.log4j.RollingFileAppender
log4j.appender.logfile.File=E:\\log\\log.log
log4j.appender.logfile.MaxFileSize=1KB
log4j.appender.logfile.MaxBackupIndex=5
log4j.appender.logfile.layout=org.apache.log4j.PatternLayout
log4j.appender.logfile.layout.ConversionPattern=%d %p [%c] - %m%n
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">
<!--1.spring监听器: 读取applicationContext.xml配置文件-->
<!--修改监听器读取配置路径-->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath*:spring/applicationContext-*.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!--2.字符编码过滤器-->
<filter>
<filter-name>characterEncodingFilter</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>characterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!--3.springmvc前端控制器-->
<servlet>
<servlet-name>dispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring/springmvc.xml</param-value>
</init-param>
<!--项目启动的时候,创建DispatcherServlet-->
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcherServlet</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
</web-app>
company-list.jsp
<%--
Created by IntelliJ IDEA.
User: Administrator
Date: 2020-10-22
Time: 18:05
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Title</title>
</head>
<body>
#{list}
</body>
</html>