SSM之saas-export项目搭建

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>