SSM-网站后台管理系统制作(2)

SSM基本工作原理

   讲解网站:https://www.w3cschool.cn/wkspring/dcu91icn.html

构建基本工作环境:

    mysql

    eclipse(tomcat8.0)

    Hbulider(前端页面展示)

构建Dynamic Web Project,然后写基本所需的domain,dao,service,到此,基本功能即可实行,然后加入db.properties链接数据库,(applicationContext.xml,springmvc-config.xml,web.xml)就构建好了一个基本的ssm框架了。然后在Controller层里面加入所需要的代码即可,到此,一个基本的ssm就可以跑起来了,当然,这是简单讲解,3个xml里面还有很多需要学习的地方,相关问题见代码

  applicationContext.xml

    

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <beans xmlns="http://www.springframework.org/schema/beans" 
 3     xmlns:mybatis="http://mybatis.org/schema/mybatis-spring"
 4     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 5     xmlns:p="http://www.springframework.org/schema/p"
 6     xmlns:context="http://www.springframework.org/schema/context"
 7     xmlns:mvc="http://www.springframework.org/schema/mvc"
 8     xmlns:tx="http://www.springframework.org/schema/tx"
 9     xsi:schemaLocation="http://www.springframework.org/schema/beans 
10                         http://www.springframework.org/schema/beans/spring-beans.xsd
11                         http://www.springframework.org/schema/context
12                         http://www.springframework.org/schema/context/spring-context.xsd
13                         http://www.springframework.org/schema/mvc
14                         http://www.springframework.org/schema/mvc/spring-mvc.xsd
15                         http://www.springframework.org/schema/tx
16                         http://www.springframework.org/schema/tx/spring-tx.xsd
17                         http://mybatis.org/schema/mybatis-spring 
18                         http://mybatis.org/schema/mybatis-spring.xsd ">
19                   
20      <!-- mybatis:scan会扫描org.fkit.dao包里的所有接口当作Spring的bean配置,之后可以进行依赖注入-->  
21     <mybatis:scan base-package="org.fkit.hrm.dao"/>   
22        
23      <!-- 扫描org.fkit包下面的java文件,有Spring的相关注解的类,则把这些类注册为Spring的bean -->
24     <context:component-scan base-package="org.fkit.hrm"/>
25     
26     <!-- 使用PropertyOverrideConfigurer后处理器加载数据源参数 -->
27     <context:property-override location="classpath:db.properties"/>
28 
29     <!-- 配置c3p0数据源 -->
30     <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"/>
31     
32     <!-- 配置SqlSessionFactory,org.mybatis.spring.SqlSessionFactoryBean是Mybatis社区开发用于整合Spring的bean -->
33     <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"
34         p:dataSource-ref="dataSource"/>
35     
36     <!-- JDBC事务管理器 -->
37     <bean id="transactionManager" 
38     class="org.springframework.jdbc.datasource.DataSourceTransactionManager"
39          p:dataSource-ref="dataSource"/>
40     
41     <!-- 启用支持annotation注解方式事务管理 -->
42     <tx:annotation-driven transaction-manager="transactionManager"/>
43     
44 </beans>
View Code

  springmvc-config.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"
 4     xmlns:mvc="http://www.springframework.org/schema/mvc"
 5     xmlns:p="http://www.springframework.org/schema/p"
 6     xmlns:context="http://www.springframework.org/schema/context"
 7     xsi:schemaLocation="
 8         http://www.springframework.org/schema/beans
 9         http://www.springframework.org/schema/beans/spring-beans.xsd
10         http://www.springframework.org/schema/mvc
11         http://www.springframework.org/schema/mvc/spring-mvc.xsd     
12         http://www.springframework.org/schema/context
13         http://www.springframework.org/schema/context/spring-context.xsd">
14         
15     <!-- 自动扫描该包,SpringMVC会将包下用了@controller注解的类注册为Spring的controller -->
16     <context:component-scan base-package="org.fkit.hrm.controller"/>
17     <!-- 设置默认配置方案 -->
18     <mvc:annotation-driven/>
19     <!-- 使用默认的Servlet来响应静态文件 -->
20     <mvc:default-servlet-handler/>
21     
22 <!--     定义Spring MVC的拦截器 -->
23     <mvc:interceptors>
24         <mvc:interceptor>
25 <!--             拦截所有请求 -->
26             <mvc:mapping path="/*"/>
27 <!--             自定义判断用户权限的拦截类   -->
28              <bean class="org.fkit.hrm.interceptor.AuthorizedInterceptor"/>
29         </mvc:interceptor>
30     </mvc:interceptors>
31     
32     <!-- 视图解析器   -->
33      <bean id="viewResolver"
34           class="org.springframework.web.servlet.view.InternalResourceViewResolver"
35           p:prefix="/WEB-INF/jsp/" p:suffix=".jsp"/> 
36     
37     <!-- 文件上传下载   -->
38      <bean id="multipartResolver"  
39         class="org.springframework.web.multipart.commons.CommonsMultipartResolver">  
40         <!-- 上传文件大小上限,单位为字节(10MB) -->
41         <property name="maxUploadSize">  
42             <value>10485760</value>  
43         </property>  
44         <!-- 请求的编码格式,必须和jSP的pageEncoding属性一致,以便正确读取表单的内容,默认为ISO-8859-1 -->
45         <property name="defaultEncoding">
46             <value>UTF-8</value>
47         </property>
48     </bean>
49     
50 </beans>
View Code

  web.xml 

    

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">
 3  <!-- 配置spring核心监听器,默认会以 /WEB-INF/applicationContext.xml作为配置文件 -->
 4     <listener>
 5         <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
 6     </listener>
 7     <!-- contextConfigLocation参数用来指定Spring的配置文件 -->
 8     <context-param>
 9         <param-name>contextConfigLocation</param-name>
10         <param-value>/WEB-INF/applicationContext*.xml</param-value>
11     </context-param>
12     
13     <!-- 定义Spring MVC的前端控制器 -->
14   <servlet>
15     <servlet-name>springmvc</servlet-name>
16     <servlet-class>
17         org.springframework.web.servlet.DispatcherServlet
18     </servlet-class>
19     <init-param>
20       <param-name>contextConfigLocation</param-name>
21       <param-value>/WEB-INF/springmvc-config.xml</param-value>
22     </init-param>
23     <load-on-startup>1</load-on-startup>
24   </servlet>
25   
26   <!-- 让Spring MVC的前端控制器拦截所有请求 -->
27   <servlet-mapping>
28     <servlet-name>springmvc</servlet-name>
29     <url-pattern>/</url-pattern>
30   </servlet-mapping>
31   
32   <!-- 编码过滤器 -->
33   <filter>
34         <filter-name>characterEncodingFilter</filter-name>
35         <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
36         <init-param>
37             <param-name>encoding</param-name>
38             <param-value>UTF-8</param-value>
39         </init-param>
40  </filter>
41     <filter-mapping>
42         <filter-name>characterEncodingFilter</filter-name>
43         <url-pattern>/*</url-pattern>
44     </filter-mapping>
45     
46     <!-- jsp的配置 -->
47   <jsp-config>
48     <jsp-property-group>
49          <!-- 配置拦截所有的jsp页面  -->
50       <url-pattern>*.jsp</url-pattern>
51        <!-- 可以使用el表达式  -->
52       <el-ignored>false</el-ignored>
53       <!-- 不能在页面使用java脚本 -->
54       <scripting-invalid>true</scripting-invalid>
55       <!-- 给所有的jsp页面导入要依赖的库,tablib.jsp就是一个全局的标签库文件  -->
56       <include-prelude>/WEB-INF/jsp/taglib.jsp</include-prelude>
57     </jsp-property-group>
58   </jsp-config>
59   
60   <error-page>
61     <error-code>404</error-code>
62     <location>/404.html</location>
63   </error-page>
64   
65   <welcome-file-list>
66     <welcome-file>index.jsp</welcome-file>
67   </welcome-file-list>
68 </web-app>
View Code

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转载自www.cnblogs.com/meditation5201314/p/10223716.html