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使用ssm框架实现简单网页注册功能

发布时间:2023-09-06 02:30责任编辑:白小东关键词:暂无标签

1、注册Spring配置文件,在web应用启动时创建Spring容器(注册listener)。

<!-- 注册spring配置文件 --> ???<context-param> ???????<param-name>contextConfigLocation</param-name> ???????<param-value>classpath:spring-*.xml</param-value> ???</context-param> ????<!--注册contextLoaderListener,在web应用启动时创建spring容器--> ???<listener> ???????<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> ???</listener>

2、字符集过滤器

<!--字符集过滤器,--> ???<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> ???????<init-param> ???????????<param-name>forceEncoding</param-name> ???????????<param-value>true</param-value> ???????</init-param> ???</filter> ???<filter-mapping> ???????<filter-name>CharacterEncodingFilter</filter-name> ???????<url-pattern>/*</url-pattern> ???</filter-mapping>

3、注册SpringMVC中央调度器

<!--MVC中央调度器,注册mvc配置文件--> ???<servlet> ???????<servlet-name>SpringMVCDispatcher</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> ???</servlet> ???<servlet-mapping> ???????<servlet-name>SpringMVCDispatcher</servlet-name> ???????<url-pattern>*.do</url-pattern> ???</servlet-mapping>

4、定义实体类,实现页面。
例如Student类,注册页面,欢迎页面

5、实现处理器,编写主业务逻辑,等待service注入。

public class RegisterHandler implements Controller { ???private IStudentService studentService;//等待注入,设置setter ????public void setStudentService(IStudentService studentService) { ???????this.studentService = studentService; ???} ????@Override ???public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response) throws Exception { ???????String name = request.getParameter("name"); ???????String ageStr = request.getParameter("age"); ???????Integer age = Integer.valueOf(ageStr); ???????Student student = new Student(name, age); ???????studentService.registerStudent(student); ????????ModelAndView modelAndView = new ModelAndView("/welcome.jsp"); ???????modelAndView.addObject("student",student); ???????return modelAndView; ???}}

6、编写service层接口,等待dao层注入

public interface IStudentService { ???void registerStudent(Student student);} public class StudentServiceImpl implements IStudentService { ???private IStudentDao studentDao;//等待注入,设置setter ????public void setStudentDao(IStudentDao studentDao) { ???????this.studentDao = studentDao; ???} ????@Override ???public void registerStudent(Student student) { ???????studentDao.insertStudent(student); ???}}

7、编写dao层接口,实现dao层(mapper映射)。最好把mapper映射放在dao包下,但是这样有个问题就是不会被编译。尝试放在resources文件夹下

public interface IStudentDao { ???void insertStudent(Student student);} //IStudentDao.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"><mapper namespace="dao.IStudentDao"> ???<insert id="insertStudent" useGeneratedKeys="true" keyProperty="id"> ???????insert into student(name,age) values(#{name},#{age}) ???</insert></mapper>

8、数据库连接,数据源

//jdbc.propertiesjdbc.driver=com.mysql.jdbc.Driverjdbc.url=jdbc:mysql://127.0.0.1:3306/test?serverTimezone=Asia/Shanghaijdbc.user=1234jdbc.password=1234 //spring-db.xml<!-- c3p0 数据源--> ???<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"> ???????<property name="driverClass" value="${jdbc.driver}"/> ???????<property name="jdbcUrl" value="${jdbc.url}"/> ???????<property name="user" value="${jdbc.user}"/> ???????<property name="password" value="${jdbc.password}"/> ???</bean> ???<!--注册数据库配置属性文件--> ???<context:property-placeholder location="classpath:jdbc.properties"/>

9、整合spring与mybatis
重点:sqlSessionFactoryBean、mapper扫描器

<!--注册SqlSessionFactory的Bean--> ???<bean id="sqlSessionFactoryBean" class="org.mybatis.spring.SqlSessionFactoryBean"> ???????<property name="dataSource" ref="dataSource"/> ???????<property name="configLocation" value="classpath:mybatis.xml"/> ???</bean> ????<!--mapper扫描器,指定扫描mapper映射文件的位置--> ???<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> ???????<property name="sqlSessionFactoryBeanName" value="sqlSessionFactoryBean"/> ???????<property name="basePackage" value="dao"/> ???</bean>

10、dao注入到service,service注入到handler

<bean id="studentService" class="service.StudentServiceImpl"> ???????<property name="studentDao" ref="IStudentDao"/> ???</bean> ?<bean id="/test/register.do" class="handlers.RegisterHandler"> ???????<property name="studentService" ref="studentService"/> ???</bean>

11、最后在pom里编译一下没放进resources目录的xml文件

<build> ???????<!--重要!!!--> ???????<!-- ?编译java目录下的xml文件(不在resources目录下的) --> ???????<resources> ???????????<resource> ???????????????<directory>src/main/java</directory> ???????????????<includes> ???????????????????<include>**/*.xml</include> ???????????????</includes> ???????????</resource> ???????</resources> ???</build>

12、添加事务处理

<!-- 注册事务管理器--> ???<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> ???????<property name="dataSource" ref="dataSource"/> ???</bean> ????<tx:advice id="advice" transaction-manager="transactionManager"> ???????<tx:attributes> ???????????<tx:method name="register*" propagation="REQUIRED" isolation="DEFAULT"/> ???????</tx:attributes> ???</tx:advice> ????<!-- AspectJ的aop配置--> ???<aop:config> ???????<aop:pointcut id="point" expression="execution(* service.*.*(..))"/> ???????<aop:advisor advice-ref="advice" pointcut-ref="point"/> ???</aop:config>

使用ssm框架实现简单网页注册功能

原文地址:https://www.cnblogs.com/darknessplus/p/10292305.html

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