企业项目开发--企业中的项目架构以及多环境分配（3）

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2.2.3、ssmm0-userManagement

pom.xml

 1 <?xml version="1.0" encoding="UTF-8"?>  2 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  3     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">  4   5     <modelVersion>4.0.0</modelVersion>  6   7     <!-- 指定父模块 -->  8     <parent>  9         <groupId>com.xxx</groupId> 10         <artifactId>ssmm0</artifactId> 11         <version>1.0-SNAPSHOT</version> 12     </parent> 13      14     <groupId>com.xxx.ssmm0</groupId> 15     <artifactId>ssmm0-userManagement</artifactId> 16     <!--<version>1.0-SNAPSHOT</version>--><!-- 父模块已经指定了版本号，这里就不用了--> 17  18     <name>ssmm0-userManagement</name> 19     <packaging>war</packaging><!-- 需要部署的模块 --> 20  21     <!-- 引入实际依赖 --> 22     <dependencies> 23         <!-- 将ssmm0-data项目作为一个jar引入项目中 --> 24         <dependency> 25             <groupId>com.xxx.ssmm0</groupId> 26             <artifactId>ssmm0-data</artifactId> 27             <version>1.0-SNAPSHOT</version> 28         </dependency> 29         <!-- servlet --> 30         <dependency> 31             <groupId>javax.servlet</groupId> 32             <artifactId>javax.servlet-api</artifactId> 33         </dependency> 34         <!-- spring mvc --> 35         <dependency> 36             <groupId>org.springframework</groupId> 37             <artifactId>spring-web</artifactId> 38         </dependency> 39         <dependency> 40             <groupId>org.springframework</groupId> 41             <artifactId>spring-webmvc</artifactId> 42         </dependency> 43         <!-- 这个是使用velocity的必备包 --> 44         <dependency> 45             <groupId>org.springframework</groupId> 46             <artifactId>spring-context-support</artifactId> 47         </dependency> 48         <!-- velocity --> 49         <dependency> 50             <groupId>org.apache.velocity</groupId> 51             <artifactId>velocity</artifactId> 52         </dependency> 53         <dependency> 54             <groupId>velocity-tools</groupId> 55             <artifactId>velocity-tools-generic</artifactId> 56         </dependency> 57     </dependencies> 58 </project>

注意：将ssmm0-data作为普通的jar引入即可。

spring.xml

 1 <?xml version="1.0" encoding="UTF-8"?>  2 <beans xmlns="http://www.springframework.org/schema/beans"  3     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"  4     xmlns:mvc="http://www.springframework.org/schema/mvc"  5     xsi:schemaLocation="http://www.springframework.org/schema/beans   6                            http://www.springframework.org/schema/beans/spring-beans-3.2.xsd  7                            http://www.springframework.org/schema/context   8                            http://www.springframework.org/schema/context/spring-context-3.2.xsd  9                            http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd"> 10                             11     <!-- 注解扫描 --> 12     <context:component-scan base-package="com.xxx" /> 13      14     <!-- 配置fastjson转换器 --> 15     <mvc:annotation-driven> 16         <mvc:message-converters register-defaults="true"> 17             <bean class="com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter"></bean> 18         </mvc:message-converters> 19     </mvc:annotation-driven> 20      21     <!-- 引入数据源，这里变量的读取都是从ssmm0的pom.xml中读取的 --> 22     <bean id="xxxDataSource" class="org.apache.tomcat.jdbc.pool.DataSource" destroy-method="close"> 23         <property name="driverClassName" value="${jdbc.driverClassName}" /> 24         <property name="url" value="${jdbc.url}" /> 25         <property name="username" value="${jdbc.username}" /> 26         <property name="password" value="${jdbc.password}" /> 27     </bean> 28      29     <!-- 引入mybatis --> 30     <bean id="xxxSqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> 31         <property name="dataSource" ref="xxxDataSource" /> 32     </bean> 33     <bean id="xxxMapperScannerConfigurer" class="org.mybatis.spring.mapper.MapperScannerConfigurer"> 34         <!--  35             这里就是包名为什么就做com.xxx.mapper.user而非com.xxx.user.mapper, 36             这样的话，比如说有两个项目com.xxx.mapper.user和com.xxx.mapper.hotel，value只需写作com.xxx.mapper即可 37             否则，value就要写作com.xxx.user.mapper,com.xxx.hotel.mapper 38          --> 39         <property name="basePackage" value="com.xxx.mapper" /> 40         <property name="sqlSessionFactoryBeanName" value="xxxSqlSessionFactory" /> 41     </bean> 42      43     <!-- 配置velocity --> 44     <bean id="velocityConfigurer" class="org.springframework.web.servlet.view.velocity.VelocityConfigurer"> 45         <property name="resourceLoaderPath"> 46             <value>WEB-INF/templates/</value> 47         </property> 48         <property name="velocityProperties"> 49             <props> 50                 <prop key="input.encoding">UTF-8</prop> 51                 <prop key="output.encoding">UTF-8</prop> 52             </props> 53         </property> 54     </bean> 55     <bean id="viewResolver" class="org.springframework.web.servlet.view.velocity.VelocityViewResolver">  56         <property name="suffix" value=".vm" />  57         <property name="contentType" value="text/html;charset=utf-8" />   58         <property name="dateToolAttribute" value="date"/> 59         <property name="numberToolAttribute" value="number"/> 60     </bean> 61 </beans>

注意：这里对包名的体现，由于直接使用spring.xml去读ssmm0的 pom.xml了，所以jdbc.properties文件就不要了，在spring.xml中，指定文件位置的<context:property-placeholder>标签就删掉了

web.xml

 1 <?xml version="1.0" encoding="utf-8"?>  2 <web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"  3     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  4     xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">  5   6     <servlet>  7         <servlet-name>dispatcherServlet</servlet-name>  8         <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>  9         <init-param> 10             <param-name>contextConfigLocation</param-name> 11             <param-value>classpath:spring.xml</param-value> 12         </init-param> 13         <load-on-startup>1</load-on-startup> 14     </servlet> 15     <servlet-mapping> 16         <servlet-name>dispatcherServlet</servlet-name> 17         <url-pattern>/</url-pattern> 18     </servlet-mapping> 19  20     <filter> 21         <filter-name>encodingFilter</filter-name> 22         <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> 23         <init-param> 24             <param-name>encoding</param-name> 25             <param-value>UTF-8</param-value> 26         </init-param> 27         <init-param> 28             <param-name>forceEncoding</param-name> 29             <param-value>true</param-value> 30         </init-param> 31     </filter> 32     <filter-mapping> 33         <filter-name>encodingFilter</filter-name> 34         <url-pattern>/*</url-pattern> 35     </filter-mapping> 36  37     <welcome-file-list> 38         <welcome-file>/index.jsp</welcome-file> 39     </welcome-file-list> 40 </web-app>

com.xxx.web.admin.AdminController

 1 package com.xxx.web.admin;  2   3 import org.springframework.beans.factory.annotation.Autowired;  4 import org.springframework.stereotype.Controller;  5 import org.springframework.web.bind.annotation.RequestMapping;  6 import org.springframework.web.bind.annotation.RequestParam;  7 import org.springframework.web.bind.annotation.ResponseBody;  8 import org.springframework.web.servlet.ModelAndView;  9  10 import com.xxx.model.userManagement.Admin; 11 import com.xxx.service.userManagement.AdminService; 12  13 /** 14  * adminController 15  */ 16 @Controller 17 @RequestMapping("/admin") 18 public class AdminController { 19      20     @Autowired 21     private AdminService adminService; 22      23     /** 24      * 管理员注册 25      */ 26     @ResponseBody 27     @RequestMapping("/register") 28     public boolean register(@RequestParam("username") String username, 29                             @RequestParam("password") String password){ 30         Admin admin = new Admin(); 31         admin.setUsername(username); 32         admin.setPassword(password); 33          34         boolean isRegisterSuccess = adminService.register(admin); 35          36         return isRegisterSuccess; 37     } 38      39     /** 40      * 管理员登录 41      */ 42     @RequestMapping("/login") 43     public ModelAndView login(@RequestParam("username") String username, 44                               @RequestParam("password") String password){ 45         Admin admin = adminService.login(username, password); 46          47         ModelAndView modelAndView = new ModelAndView(); 48         if(admin == null){ 49             modelAndView.addObject("message", "用户不存在或者密码错误！请重新输入"); 50             modelAndView.setViewName("error"); 51         }else{ 52             modelAndView.addObject("admin", admin); 53             modelAndView.setViewName("userinfo"); 54         } 55          56         return modelAndView; 57     } 58 }

error.vm

 1 <!DOCTYPE html>  2 <html>  3 <head>  4     <meta charset="UTF-8">  5     <title>登录失败</title>  6 </head>  7 <body>  8     <div>  9         $message 10     </div> 11 </body> 12 </html>

userinfo.vm

 1 <!DOCTYPE html>  2 <html>  3 <head>  4     <meta charset="UTF-8">  5     <title>登录成功</title>  6 </head>  7 <body>  8     <div>  9         id:$admin.id 10         username:$admin.username 11         password:$admin.password 12     </div> 13 </body> 14 </html>

具体测试过程：

• 直接运行jetty的话，会发现连不上数据库服务器99.99.99.999，这是因为默认启动服务器之后，我们使用的是prod的一套env，这套env中的数据库服务器是我自己乱写的：99.99.99.999

• 这时候，在ssmm0-userManagement项目上右击-->"Build Path"-->"Configure Build Path"-->"Maven"-->修改env，如下图所示，这样就切换到了dev的env下，之后再运行jetty，如果依旧不行的话，就采用ssmm0的pom.xml文件中我写的那块注释的方法。

这样，一个基本上就是企业中开发常用的结构的项目就完成了，这个项目非常重要，一定自己试着去写一个，一定要仔细看其中的每一条注释。

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