SpringMVC + Spring + Mybatis + Maven整合實例

一、說明：

目前工作中的開發框架主要是 spring ，使用的是 springMVC+ spring + spring JdbcTemplate ,最近學習了一下Mybatis、Maven這些內容，所以嘗試使用 springMVC + Spring + Mybatis + Maven來搭建一個簡單的demo ，功能很簡單，主要是對於一個表的CRUD。

項目源碼下載地址：github下載地址

項目結構圖：

二、環境搭建流程

① 、新建一個Maven工程，並改項目為WEB項目，創建出相應的項目結構。

步驟：New---》Project----》Maven Project

之后選擇Next：

選中 Create a simple project 選項，然后Next

然后點擊Finish ，工程創建完成，結構如下：

然后，右鍵選中項目，打開Properties選項

將圖中的Dynamic Web Module 選項去掉，點擊OK保存

然后再次選中項目打開上述的菜單，並且選中Dynamic Web Module 選項，對話框出現下圖的提示：

此時，點擊下面的：Further configuration avaaliable選項 ，出現如下對話框

將web目錄改為src/main/webapp ,之后ok保存，發現在項目的src/main.webapp下面多出了WEB-INF與META-INF文件，同時還生成了web.xml  文件，如下圖：

 

②、配置相關的配置文件

1）、配置Maven的pom.xml文件，引入整合所需要的jar包：

XML Code

<project xmlns = "http://maven.apache.org/POM/4.0.0" xmlns:xsi = "http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation = "http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" >   <modelVersion> 4.0.0 </modelVersion>   <groupId> com.elgin </groupId>   <artifactId> ssm_first </artifactId>   <version> 0.0.1-SNAPSHOT </version>   <packaging> war </packaging>   <properties>     <!-- spring 版本號 -->     <spring.version> 4.1.4.RELEASE </spring.version>     <!-- junit 版本號  -->     <junit.version> 4.10 </junit.version>     <!-- mybatis 版本號 -->     <mybatis.version> 3.3.0 </mybatis.version>   </properties>   <dependencies>     <!-- 添加spring依賴 -->     <dependency>       <groupId> org.springframework </groupId>       <artifactId> spring-webmvc </artifactId>       <version> ${spring.version} </version>     </dependency>     <dependency>       <groupId> org.springframework </groupId>       <artifactId> spring-context </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-aop </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-tx </artifactId>       <version> ${spring.version} </version>     </dependency>     <dependency>       <groupId> org.springframework </groupId>       <artifactId> spring-jdbc </artifactId>       <version> ${spring.version} </version>     </dependency>     <!-- 添加mybatis依賴 -->     <dependency>       <groupId> org.mybatis </groupId>       <artifactId> mybatis </artifactId>       <version> ${mybatis.version} </version>     </dependency>     <dependency>       <groupId> org.mybatis </groupId>       <artifactId> mybatis-spring </artifactId>       <version> 1.2.3 </version>     </dependency>     <!-- mysql 驅動 -->     <dependency>       <groupId> Mysql </groupId>       <artifactId> mysql-connector-java </artifactId>       <version> 5.1.30 </version>     </dependency>     <!-- 需要的log4j2日志包依賴 -->     <dependency>       <groupId> org.apache.logging.log4j </groupId>       <artifactId> log4j-core </artifactId>       <version> 2.5 </version>     </dependency>     <dependency>       <groupId> org.apache.logging.log4j </groupId>       <artifactId> log4j-web </artifactId>       <version> 2.5 </version>     </dependency>     <dependency>       <groupId> org.apache.logging.log4j </groupId>       <artifactId> log4j-1.2-api </artifactId>       <version> 2.5 </version>     </dependency>     <!-- 單元測試依賴的jar -->     <dependency>       <groupId> org.springframework </groupId>       <artifactId> spring-test </artifactId>       <version> ${spring.version} </version>       <scope> test </scope>     </dependency>     <dependency>       <groupId> org.junit4 </groupId>       <artifactId> org.junit4 </artifactId>       <version> 4.3.1 </version>     </dependency>     <!-- JSTL 標簽庫 -->     <dependency>       <groupId> jstl </groupId>       <artifactId> jstl </artifactId>       <version> 1.2 </version>     </dependency>     <dependency>       <groupId> org.apache.commons </groupId>       <artifactId> com.springsource.org.apache.commons.fileupload </artifactId>       <version> 1.2.0 </version>     </dependency>   </dependencies> </project>

注：我使用的是oschina的Maven倉庫，庫不匹配的時候可能部分jar包加不進來。

2）、配置 web.xml 文件：

XML Code

<?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" xmlns:web = "http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation = "http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id = "WebApp_ID" version = "2.5" >   <!-- 聲明項目的初始化參數 ，這里聲明了spring配置文件的位置 -->   <context-param>     <param-name> contextConfigLocation </param-name>     <param-value> classpath:applicationContext*.xml </param-value>   </context-param>   <!-- 加入spring支持 -->   <listener>     <listener-class> org.springframework.web.context.ContextLoaderListener </listener-class>   </listener>   <!-- 加入springMVC支持 -->   <!--           springmvc 配置文件默認加載路徑為：WEB-INF/[servlet-name]-servlet.xml           [servlet-name]為下面配置中的servlet-name元素的值，此處為springmvc      -->   <servlet>     <servlet-name> springmvc </servlet-name>     <servlet-class> org.springframework.web.servlet.DispatcherServlet </servlet-class>     <init-param>       <param-name> contextConfigLocation </param-name>       <param-value> classpath:springmvc*.xml </param-value>     </init-param>     <!-- 1 代表容器初始化時加載servlet -->     <load-on-startup> 1 </load-on-startup>   </servlet>   <servlet-mapping>     <servlet-name> springmvc </servlet-name>     <url-pattern>/</url-pattern>   </servlet-mapping>   <!-- 項目編碼過濾器 -->   <filter>     <filter-name> encodingFileter </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> encodingFileter </filter-name>     <url-pattern>/ * </url-pattern>   </filter-mapping>   <!-- log4j2 支持 -->   <context-param>     <param-name> log4jConfiguration </param-name>     <param-value>/ WEB-INF / classes / log4j2.xml </param-value>   </context-param>   <listener>     <listener-class> org.apache.logging.log4j.web.Log4jServletContextListener </listener-class>   </listener>   <filter>     <filter-name> log4jFilter </filter-name>     <filter-class> org.apache.logging.log4j.web.Log4jServletFilter </filter-class>   </filter>   <filter-mapping>     <filter-name> log4jFilter </filter-name>     <url-pattern>/ * </url-pattern>   </filter-mapping> </web-app>

3 )、配置spring的配置文件applicationContext.xml

在源碼包src/main/resources下新建xml配置文件：applicationContext.xml，內容如下：

XML Code

<?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:tx = "http://www.springframework.org/schema/tx" xmlns:aop = "http://www.springframework.org/schema/aop"   xsi:schemaLocation = "http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.1.xsd  http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd  http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.1.xsd  http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.1.xsd ">   <!-- 導入properties屬性文件 -->   <context:property-placeholder location = "classpath:properties/datasource.properties" />   <!-- 配置數據源 -->   <bean id = "dataSource" class = "org.springframework.jdbc.datasource.DriverManagerDataSource" >     <property name = "username" value = "${jdbc.username}" ></property>     <property name = "password" value = "${jdbc.password}" ></property>     <property name = "url" value = "${jdbc.url}" ></property>     <property name = "driverClassName" value = "${jdbc.driver}" ></property>   </bean>   <!-- 配置sqlSessionFactory-->   <bean id = "sqlSessionFactory" class = "org.mybatis.spring.SqlSessionFactoryBean" >     <property name = "dataSource" ref = "dataSource" ></property>     <property name = "configLocation" value = "classpath:mybatis/mybatis-config.xml" ></property>     <property name = "mapperLocations" value = "classpath:mapper/*.xml" ></property>   </bean>   <!-- 自動掃描mapper文件對應的接口類，將其中的接口自動創建成 MapperFactoryBean -->   <bean class = "org.mybatis.spring.mapper.MapperScannerConfigurer" >     <property name = "basePackage" value = "com.elgin.dao" ></property>   </bean>   <!-- 配置事務管理器 -->   <bean id = "transactionManager" class = "org.springframework.jdbc.datasource.DataSourceTransactionManager" >     <property name = "dataSource" ref = "dataSource" ></property>   </bean>   <!-- 事務的傳播屬性 -->   <tx:advice id = "taansactionAdvice" transaction-manager = "transactionManager" >     <tx:attributes>       <tx:method name = "add*" propagation = "REQUIRED" />       <tx:method name = "create*" propagation = "REQUIRED" />       <tx:method name = "delete*" propagation = "REQUIRED" />       <tx:method name = "remove*" propagation = "REQUIRED" />       <tx:method name = "update*" propagation = "REQUIRED" />       <tx:method name = "get*" read-only = "true" />       <tx:method name = "find*" read-only = "true" />       <tx:method name = "*" read-only = "true" />     </tx:attributes>   </tx:advice>   <!-- 參與事務的service  -->   <aop:config>     <aop:pointcut expression = "execution(* com.elgin.service.*.*(..))" id = "servicePointCut" />     <aop:advisor advice-ref = "taansactionAdvice" pointcut-ref = "servicePointCut" />   </aop:config> </beans>

4）、配置springMVC的配置文件：

在源碼包src/main/resources下新建xml配置文件：springmvc.xml，內容如下：

XML Code

<?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:p = "http://www.springframework.org/schema/p"     xmlns:mvc = "http://www.springframework.org/schema/mvc"     xsi:schemaLocation = "http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd         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-4.1.xsd ">         <!-- 配置spring注解掃描的包 -->     <context:component-scan base-package = "com.elgin" ></context:component-scan>          <!-- 開啟注解驅動 -->     <!--        會自動注冊DefaultAnnotationHandlerMapping 與AnnotationMethodHandlerAdapter 這兩個bean,       所以就沒有機會再給DefaultAnnotationHandlerMapping注入interceptors屬性，無法指定攔截器。       可以通過人工配置上面的兩個Bean，不使用 <mvc:annotation-driven />，就可以 給interceptors屬性 注入攔截器了      -->     <mvc:annotation-driven></mvc:annotation-driven>               <!-- 靜態資源訪問，解決頁面無法訪問到js、img和css文件夾中的文件的問題 -->     <mvc:resources location = "/imgages/" mapping = "/imgages/**" />        <mvc:resources location = "/js/" mapping = "/js/**" />         <mvc:resources location = "/css/" mapping = "/css/**" />          <!--           視圖解析器：InternalResourceViewResolver       UrlBasedViewResolver 的子類，通常用於查找 JSP（類 InternalResourceView）和        JSTL（類 JstlView，InternalResourceView 的子類）等視圖     -->     <bean id = "viewResolver" class = "org.springframework.web.servlet.view.InternalResourceViewResolver" >         <property name = "viewClass" value = "org.springframework.web.servlet.view.JstlView" ></property>         <property name = "prefix" value = "/WEB-INF/jsp" ></property>         <property name = "suffix" value = ".jsp" ></property>     </bean>          <!-- 文件上傳限制 -->     <bean class = "org.springframework.web.multipart.commons.CommonsMultipartResolver" >         <property name = "defaultEncoding" value = "UTF-8" ></property>         <property name = "maxUploadSize" value = "5242880" ></property>         <property name = "maxInMemorySize" value = "20480" ></property>     </bean>      </beans>

5）、配置mybatis的配置文件：

在源碼包src/main/resources下新建package：mybatis ，然后在mybatis包下新建mybatis的配置文件：mybatis-config.xml, 內容如下：

XML Code

<?xml version = "1.0" encoding = "UTF-8" ?> <!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd" > <configuration> <!-- 類的別名 --> <typeAliases>   <typeAlias type = "com.elgin.entities.User" alias = "User" /> </typeAliases> </configuration>

6）、數據庫相關配置：

在源碼包src/main/resourecs下新建package：properties ，然后在properties包下新建：datasource.properties ，內容如下：

 

jdbc.username=root jdbc.password=root jdbc.url=jdbc:mysql: // localhost:3306 / test jdbc.driver=com.mysql.jdbc.Driver

 

7）、mybatis的dao接口映射文件：

在源碼包src/main/resourecs下新建package：mapper，然后在mapper包下新建：userMapper.xml，內容如下：

XML Code

<?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 = "com.elgin.dao.UserDao" >               <!-- 新增一條記錄 -->     <insert id = "addUser" parameterType = "User" >       insert into t_user(username,password,email,phone)values(#{username},#{password},#{email},#{phone})     </insert>          <!-- 刪除一條記錄 -->     <delete id = "deleteUser" parameterType = "Integer" >       delete from t_user where id = #{id}     </delete>          <!-- 更新一條記錄的數據 -->     <update id = "updateUser" parameterType = "User" >       update t_user set username=#{username},password=#{password},email=#{email},phone=#{phone} where id=#{id}     </update>          <!-- 查詢單條記錄 -->     <select id = "getUser" parameterType = "Integer" resultType = "User" >         SELECT * FROM t_user WHERE id = #{id}     </select>          <!-- 查詢多條記錄 -->     <select id = "getUserList" resultType = "User" >        select * from t_user     </select> </mapper>

 

8）、配置log4j2配置文件：

在源碼包src/main/resourecs下新建xml配置文件：log4j2.xml ,內容如下：

XML Code

<?xml version = "1.0" encoding = "utf-8" ?> <Configuration status = "OFF" >   <Appenders>     <!-- 輸出到文件 -->     <File name = "file" fileName = "d:/myapp.log" append = "true" >       <PatternLayout pattern = "%d %-5p %c - %m%n" />     </File>     <!--輸出到控制台配置-->     <Console name = "Console" >       <PatternLayout pattern = "%d{yyyy-MM-dd HH:mm:ss } %p %l %m%n" />     </Console>     <!-- 日志文件定期整理處理 -->     <RollingFile name = "RollingFile" fileName = "logs/app.log" filePattern = "d:/logs/$${date:yyyy-MM}/app-%d{MM-dd-yyyy}-%i.log.gz" >       <PatternLayout>         <Pattern> %d{yyyy-MM-dd HH:mm:ss } %p %l %m%n </Pattern>       </PatternLayout>       <Policies>         <TimeBasedTriggeringPolicy />         <SizeBasedTriggeringPolicy size = "20MB" />       </Policies>     </RollingFile>   </Appenders>   <Loggers>     <Logger level = "debug" name = "com.elgin" additivity = "false" >       <AppenderRef ref = "Console" />       <AppenderRef ref = "file" />     </Logger>     <Root level = "warn" >       <AppenderRef ref = "file" />       <AppenderRef ref = "RollingFile" />     </Root>   </Loggers> </Configuration>

 

9）、開發dao，service，controller，實體entitis相關代碼：

在源碼包src/main/java中新建如下各個包：

實體類User：

Java Code

package com.elgin.entities; public   class User {          private Integer id;     private   String username;     private   String password;     private   String email;     private   String phone;     public Integer getId() {         return id;     }     public   void setId(Integer id) {         this .id = id;     }     public   String getUsername() {         return username;     }     public   void setUsername( String username) {         this .username = username;     }     public   String getPassword() {         return password;     }     public   void setPassword( String password) {         this .password = password;     }     public   String getEmail() {         return email;     }     public   void setEmail( String email) {         this .email = email;     }     public   String getPhone() {         return phone;     }     public   void setPhone( String phone) {         this .phone = phone;     } }

dao接口類：UserDao

Java Code

package com.elgin.dao; import java.util.List; import com.elgin.entities.User; public   interface UserDao {     public   int addUser(User user);     public   int deleteUser(Integer id);     public   int updateUser(User user);     public User getUser(Integer id);     public List<User> getUserList(); }

service接口類: UserService

Java Code

package com.elgin.service; import java.util.List; import com.elgin.entities.User; public   interface UserService {     public   int addUser(User user);     public   int deleteUser(Integer id);     public   int updateUser(User user);     public User getUser(Integer id);     public List<User> getUserList(); }

service實現類: UserServiceImpl

Java Code

package com.elgin.service.impl; import java.util.List; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import com.elgin.dao.UserDao; import com.elgin.entities.User; import com.elgin.service.UserService; @Service( "userService" ) public   class UserServiceImpl implements UserService {          @Autowired     private UserDao userDao;          public   int addUser(User user) {         int result=userDao.addUser(user);         return result;     }     public   int deleteUser(Integer id) {         int result=userDao.deleteUser(id);         return result;     }     public   int updateUser(User user) {         int result=userDao.updateUser(user);         return result;     }     public User getUser(Integer id) {         User user=userDao.getUser(id);         return user;     }     public List<User> getUserList() {         List<User> list=userDao.getUserList();         return list;     } }

controller類: UserController

Java Code

package com.elgin.controller; import java.io.IOException; import java.util.List; import javax.servlet.ServletException; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.log4j.Logger; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.ui.ModelMap; import org.springframework.web.bind.annotation.RequestMapping; import com.elgin.entities.User; import com.elgin.service.UserService; @Controller public   class UserController {     private Logger logger = Logger.getLogger( this .getClass());     @Autowired     private UserService userService;     /**     * @Title: addPage     * @Description: 用戶添加頁面     * @param mm     * @return    參數     */     @RequestMapping( "addpage.jhtml" )     public   String addPage(ModelMap mm)     {         logger.info( "add page..." );         return   "/register" ;     }     /**     * @Title: Regiseter     * @Description: 用戶添加操作     * @param request     * @param response     * @param user     * @throws IOException     * @throws ServletException    參數     */     @RequestMapping( "register.jhtml" )     public   void Regiseter(HttpServletRequest request, HttpServletResponse response, User user) throws IOException, ServletException     {         int result = 0 ;         if (user != null)         {             result = userService.addUser(user);         }         if (result > 0 )         {             logger.info( "注冊成功.." );             response.sendRedirect( "/allUser.jhtml" );         }         else         {             logger.error( "注冊失敗" );             request.getRequestDispatcher( "/500.jhtml" ).forward(request, response);         }     }     /**     * @Title: listUser     * @Description: 列表顯示所有用戶     * @param mm     * @return    參數     */     @RequestMapping( "allUser.jhtml" )     public   String listUser(ModelMap mm)     {         List<User> list = userService.getUserList();         mm.put( "list" , list);         return   "/userlist" ;     }     /**     * @Title: editUser     * @Description: 用戶信息編輯頁面     * @param id     * @param mm     * @return    參數     */     @RequestMapping( "editUser.jhtml" )     public   String editUser( String id, ModelMap mm)     {         User user = userService.getUser(Integer.parseInt(id));         mm.put( "user" , user);         return   "/register" ;     }     /**     * @Title: updateUser     * @Description: 更新用戶信息     * @param request     * @param response     * @param user     * @throws Exception    參數     */     @RequestMapping( "updateUser.jhtml" )     public   void updateUser(HttpServletRequest request, HttpServletResponse response, User user) throws Exception     {         int result = userService.updateUser(user);         if (result > 0 )         {             logger.info( "更新用戶數據成功" );             response.sendRedirect( "/allUser.jhtml" );         }         else         {             logger.error( "更新用戶數據失敗" );             request.getRequestDispatcher( "/500.jhtml" ).forward(request, response);         }     }     /**     * @Title: deleteUserById     * @Description: 刪除一條用戶記錄     * @param request     * @param response     * @param id     * @throws Exception    參數     */     @RequestMapping( "deleteUser.jhtml" )     public   void deleteUserById(HttpServletRequest request, HttpServletResponse response, String id) throws Exception     {         int result = userService.deleteUser(Integer.parseInt(id));         if (result > 0 )         {             logger.info( "刪除用戶數據成功.." );             response.sendRedirect( "/allUser.jhtml" );         }         else         {             logger.error( "刪除用戶數據失敗.." );             request.getRequestDispatcher( "/500.jhtml" ).forward(request, response);         }     } }

10）、測試頁面：

根據視圖解析器的配置，在webapp/WEB-INF下新建jsp文件夾，用來保存相關頁面：

register.jsp

JSP Code

<%@ page language= "java" contentType= "text/html; charset=UTF-8" pageEncoding= "UTF-8" %> <%@ taglib prefix= "c" uri= "http://java.sun.com/jsp/jstl/core" %> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"   "http://www.w3.org/TR/html4/loose.dtd" > <html> <head> <meta http-equiv= "Content-Type" content= "text/html; charset=UTF-8" > <title>Register</title> </head> <body>   <c: if test= "${empty user}" >     <form action= "register.jhtml" method= "post" >   </c: if >   <c: if test= "${not empty user}" >     <form action= "updateUser.jhtml" method= "post" >       <input type= "hidden" value= "${user.id}" name= "id" >   </c: if >             <table>                <tr>                    <td>用戶名：</td>                    <td><input type= "text" name= "username" value= "${user.username}" ></td>                </tr>                <tr>                    <td>密碼：</td>                    <td><input type= "password" name= "password" value= "${user.password}" ></td>                </tr>                <tr>                   <td>郵件：</td>                   <td><input type= "text" name= "email" value= "${user.email}" ></td>                </tr>                <tr>                    <td>電話：</td>                    <td><input type= "text" name= "phone" value= "${user.phone}" ></td>                </tr>                <tr>                    <td colspan= "2" align= "center" ><input type= "submit" value= "提交" ></td>                </tr>             </table>     </form> </body> </html>

userlist.jsp :

JSP Code

<%@ page language= "java" contentType= "text/html; charset=UTF-8" pageEncoding= "UTF-8" %> <%@ taglib prefix= "c" uri= "http://java.sun.com/jsp/jstl/core" %> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"   "http://www.w3.org/TR/html4/loose.dtd" > <html> <head> <meta http-equiv= "Content-Type" content= "text/html; charset=UTF-8" > <title>User List</title> </head> <body> <a href= "addpage.jhtml" />用戶注冊</a> <br/> <br/> <span >所有用戶</span> <br/> <br/>     <table border= "2px" width= "800" >        <tbody>          <tr>             <th>id</th>             <th>用戶名</th>             <th>密碼</th>             <th>郵箱</th>             <th>電話</th>             <th>操作</th>          </tr>          <c:forEach items= "${list}" var= "user" >             <tr>               <td>${user.id}</td>               <td>${user.username}</td>               <td>${user.password}</td>               <td>${user.email}</td>               <td>${user.phone}</td>               <td>                  <a href= "deleteUser.jhtml?id=${user.id}" >刪除</a>                  <a href= "editUser.jhtml?id=${user.id}" >編輯</a>               </td>             </tr>          </c:forEach>        </tbody>     </table> </body> </html>

三、測試結果：

將項目加載到tomcat，並啟動。

訪問：http://localhost:8080/addpage.jhtml ，進入編輯頁面

 

輸入數據點提交，數據保存成功並出現用戶列表頁面（編輯刪除同理）：

控制台日志：