SSM 电影后台管理项目

概述

通过对数据库中一张表的CRUD，将相应的操作结果渲染到页面上。
笔者通过这篇博客还原了项目（当然有一些隐藏的坑），然后将该项目上传到了Github、Gitee，在末尾会附上有源码地址，读者可参考。

该项目使用的是 Spring+SpringMVC+Mybaits（SSM）后端架构，POJO—Dao—Service—Controller的结构，简单易懂。

POJO：实体类层，封装的是数据中的设计的表对应的元素。

Dao：Mapper的接口以及Mapper.xml文件，实现sql操作。

Service：服务实现层，调用Dao层方法进行实现。

Controller：控制层，调用一个个Service层的实现方法完成一个个具体功能。

项目使用了前端JS检错和后端JSR303参数校验，能把绝大部分的问题都包括其中。类似于输入信息错误以及输入信息不合法，违规跳转等，也加入了过滤器，使用户可以有更好的体验。

电影后台管理系统的管理员在工作中需要查阅和管理如下信息：后台管理的管理员、电影信息、新闻信息以及类型信息。如下图：

准备

环境：
- IDEA
- MySQL 5.1.47
- Tomcat 9
- Maven 3.6
要求：
- 掌握MySQL数据库
- 掌握Spring
- 掌握MyBatis
- 掌握SpringMVC
- 掌握简单的前端知识

实现

1.前置准备

1.1 创建数据库film

CREATE DATABASE `film`;USE `film`;-- ----------------------------
-- Table structure for film
-- ----------------------------
DROP TABLE IF EXISTS `film`;
CREATE TABLE `film`  (`ISDN` int(20) NOT NULL,`name` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,`director` varchar(10) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,`actor` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,`type` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,`country` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,`language` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,`score` double(10, 0) NULL DEFAULT NULL,`photo` varchar(150) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,`href` varchar(150) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,`description` varchar(150) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,PRIMARY KEY (`ISDN`) USING BTREE
) ENGINE = InnoDB CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Compact;-- ----------------------------
-- Records of film
-- ----------------------------
INSERT INTO `film` VALUES (1, '神奇女侠', '派蒂·杰金斯', '盖尔·加朵', '科幻', '美国', '英语', 7, 'http://localhost:8080/video/\\sq.png', 'http://localhost:8080/video/\\导入视频.mp4', '故事背景设定在五光十色...');
INSERT INTO `film` VALUES (2, '紧急救援', '林超贤', '彭于晏', '动作', '中国大陆', '汉语普通话', 6, 'http://localhost:8080/video/\\jj.png', 'http://localhost:8080/video/\\导入视频.mp4', '倾覆沉没的钻井平台...');
INSERT INTO `film` VALUES (3, '333333333', '3', '3', '科幻', '3', '4', 3, 'http://localhost:8080/video/\\Snipaste_2020-10-11_00-02-07.png', 'http://localhost:8080/video/\\导入视频.mp4', '111');-- ----------------------------
-- Table structure for news
-- ----------------------------
DROP TABLE IF EXISTS `news`;
CREATE TABLE `news`  (`ISDN` int(11) NOT NULL,`title` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,`author` varchar(10) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,`date` date NULL DEFAULT NULL,`description` varchar(150) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,PRIMARY KEY (`ISDN`) USING BTREE
) ENGINE = InnoDB CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Compact;-- ----------------------------
-- Records of news
-- ----------------------------
INSERT INTO `news` VALUES (1, 'test1', 'zczc', '2009-01-13', '这是一个测试');
INSERT INTO `news` VALUES (2, 'test2', 'zctoo', '2001-02-15', '这也是一个测试');-- ----------------------------
-- Table structure for types
-- ----------------------------
DROP TABLE IF EXISTS `types`;
CREATE TABLE `types`  (`id` int(11) NOT NULL,`type` varchar(10) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Compact;-- ----------------------------
-- Records of types
-- ----------------------------
INSERT INTO `types` VALUES (1, '科幻');
INSERT INTO `types` VALUES (2, '战争');
INSERT INTO `types` VALUES (3, '历史');
INSERT INTO `types` VALUES (4, '动作');
INSERT INTO `types` VALUES (5, '爱情');
INSERT INTO `types` VALUES (6, '喜剧');
INSERT INTO `types` VALUES (7, '冒险');
INSERT INTO `types` VALUES (8, '恐怖');-- ----------------------------
-- Table structure for user
-- ----------------------------
DROP TABLE IF EXISTS `user`;
CREATE TABLE `user`  (`id` int(100) NOT NULL AUTO_INCREMENT,`username` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,`paw` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,`tele` int(20) NULL DEFAULT NULL,`email` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 3 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Compact;-- ----------------------------
-- Records of user
-- ----------------------------
INSERT INTO `user` VALUES (1, '111111', '123456', 111, 'moyu_zc@13.com');
INSERT INTO `user` VALUES (2, '111zc', 'zc123', 1111111111, '1437101473@qq.com');SET FOREIGN_KEY_CHECKS = 1;

1.2 导入需要的依赖

<dependencies><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>5.1.47</version></dependency><dependency><groupId>org.mybatis</groupId><artifactId>mybatis</artifactId><version>3.4.6</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-webmvc</artifactId><version>5.2.8.RELEASE</version></dependency><dependency><groupId>commons-logging</groupId><artifactId>commons-logging</artifactId><version>1.2</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-aspects</artifactId><version>5.2.8.RELEASE</version></dependency><dependency><groupId>com.jhlabs</groupId><artifactId>filters</artifactId><version>2.0.235</version></dependency><dependency><groupId>com.github.penggle</groupId><artifactId>kaptcha</artifactId><version>2.3.2</version></dependency><dependency><groupId>com.mchange</groupId><artifactId>c3p0</artifactId><version>0.9.5.2</version></dependency><dependency><groupId>org.mybatis</groupId><artifactId>mybatis-spring</artifactId><version>2.0.4</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-jdbc</artifactId><version>5.1.9.RELEASE</version></dependency><dependency><groupId>javax.servlet.jsp.jstl</groupId><artifactId>jstl</artifactId><version>1.2</version></dependency><dependency><groupId>taglibs</groupId><artifactId>standard</artifactId><version>1.1.2</version></dependency><dependency><groupId>org.apache.taglibs</groupId><artifactId>taglibs-standard-spec</artifactId><version>1.2.5</version></dependency><dependency><groupId>org.apache.taglibs</groupId><artifactId>taglibs-standard-impl</artifactId><version>1.2.5</version></dependency><dependency><groupId>javax.servlet</groupId><artifactId>jstl</artifactId><version>1.2</version></dependency><dependency><groupId>javax.servlet.jsp</groupId><artifactId>jsp-api</artifactId><version>2.2.1-b03</version></dependency><dependency><groupId>junit</groupId><artifactId>junit</artifactId><version>4.12</version><scope>test</scope></dependency><dependency><groupId>org.hibernate</groupId><artifactId>hibernate-validator</artifactId><version>5.2.2.Final</version></dependency><dependency><groupId>commons-fileupload</groupId><artifactId>commons-fileupload</artifactId><version>1.3.1</version></dependency><dependency><groupId>commons-io</groupId><artifactId>commons-io</artifactId><version>1.4</version></dependency>
</dependencies>

1.3 Maven资源过滤以及JDK设置

<build><resources><resource><directory>src/main/java</directory><includes><include>**/*.properties</include><include>**/*.xml</include></includes><filtering>true</filtering></resource><resource><directory>src/main/resources</directory><includes><include>**/*.properties</include><include>**/*.xml</include></includes><filtering>true</filtering></resource></resources><plugins><plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-compiler-plugin</artifactId><version>3.8.0</version><configuration><source>1.8</source><target>1.8</target></configuration></plugin></plugins>
</build>

1.4 创建好项目架构

先创建好com.zc.xxx路径下的文件；resources资源文件夹下的文件可以先不创建，下面会逐步创建。

2.Mybaits

2.1 数据库配置文件

数据库配置文件 db.properties

jabc.driver=com.mysql.jdbc.Driver
jabc.url=jdbc:mysql://localhost:3306/film?useUnicode=true&characterEncoding=UTF-8
jabc.username=root
jabc.password=root

2.2 关联数据库

IDEA关联数据库，用idea登陆上自己的数据库

2.3 编写MyBatis的核心配置文件

MyBatis的核心配置文件：mybatis-config.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configurationPUBLIC "-//mybatis.org//DTD Config 3.0//EN""http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration><mappers><mapper resource="xxxx"/>     <!-- 写好了Mapper.xml文件，记得第一时间绑定  --></mappers></configuration>

3.Spring

配置Spring整合MyBatis，我们这里数据源使用c3p0连接池；

3.1 Spring整合Dao层

配置文件名：spring-dao.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"xsi:schemaLocation="http://www.springframework.org/schema/beanshttp://www.springframework.org/schema/beans/spring-beans.xsdhttp://www.springframework.org/schema/contexthttps://www.springframework.org/schema/context/spring-context.xsd"><!-- 配置整合mybatis --><!-- 1.关联数据库文件 --><context:property-placeholder location="classpath:db.properties"/><!-- 2.数据库连接池 --><!--数据库连接池dbcp 半自动化操作 不能自动连接c3p0 自动化操作（自动的加载配置文件 并且设置到对象里面）--><bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"><!-- 配置连接池属性 --><property name="driverClass" value="${jdbc.driver}"/><property name="jdbcUrl" value="${jdbc.url}"/><property name="user" value="${jdbc.username}"/><property name="password" value="${jdbc.password}"/><!-- c3p0连接池的私有属性 --><property name="maxPoolSize" value="30"/><property name="minPoolSize" value="10"/><!-- 关闭连接后不自动commit --><property name="autoCommitOnClose" value="false"/><!-- 获取连接超时时间 --><property name="checkoutTimeout" value="10000"/><!-- 当获取连接失败重试次数 --><property name="acquireRetryAttempts" value="2"/></bean><!-- 3.配置SqlSessionFactory对象 --><bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"><!-- 注入数据库连接池 --><property name="dataSource" ref="dataSource"/><!-- 配置MyBaties全局配置文件:mybatis-config.xml --><property name="configLocation" value="classpath:mybatis-config.xml"/></bean><!-- 4.配置扫描Dao接口包，动态实现Dao接口注入到spring容器中 --><bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"><!-- 注入sqlSessionFactory --><property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/><!-- 给出需要扫描Dao接口包 --><property name="basePackage" value="com.Dao"/></bean></beans>

3.2 Spring整合Service层

配置文件名：spring-service.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"xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd"><!-- 扫描service相关的bean --><context:component-scan base-package="com.Service" /><!--BookServiceImpl注入到IOC容器中--><bean id="BookServiceImpl" class="com.Service.BookServiceImpl"><property name="bookMapper" ref="bookMapper"/></bean><!-- 配置事务管理器 --><bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"><!-- 注入数据库连接池 --><property name="dataSource" ref="dataSource" /></bean></beans>

如果这个文件出错，是因为Spring的几个配置文件没有整合在一起，有两个方法：

一、手动关联

File—Project Structure中：

如果三个不在同一个里面，点 “+” 添加文件。

二、语句引用

在配置文件applicationContext.xml中加入引用语句：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://www.springframework.org/schema/beanshttp://www.springframework.org/schema/beans/spring-beans.xsd"><import resource="classpath:spring-service.xml"/><import resource="classpath:spring-dao.xml"/></beans>

这样这三个xml文件就关联起来了。

4.SpringMVC层

4.1 web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"version="4.0"><!--DispatcherServlet--><servlet><servlet-name>DispatcherServlet</servlet-name><servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class><init-param><param-name>contextConfigLocation</param-name><!--一定要注意:我们这里加载的是总的配置文件--><param-value>classpath:applicationContext.xml</param-value></init-param><load-on-startup>1</load-on-startup></servlet><servlet-mapping><servlet-name>DispatcherServlet</servlet-name><url-pattern>/</url-pattern></servlet-mapping><!--编码配置--><filter><filter-name>encodingFilter</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>encodingFilter</filter-name><url-pattern>/*</url-pattern></filter-mapping><!--Session过期时间--><session-config><session-timeout>15</session-timeout></session-config></web-app>

4.2 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/beanshttp://www.springframework.org/schema/beans/spring-beans.xsdhttp://www.springframework.org/schema/contexthttp://www.springframework.org/schema/context/spring-context.xsdhttp://www.springframework.org/schema/mvchttps://www.springframework.org/schema/mvc/spring-mvc.xsd"><!-- 1.开启SpringMVC注解驱动 --><mvc:annotation-driven /><!-- 2.静态资源默认servlet配置--><mvc:default-servlet-handler/><!-- 3.配置jsp 显示ViewResolver视图解析器   这部分加不加自行决定<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"><property name="viewClass" value="org.springframework.web.servlet.view.JstlView" /><property name="prefix" value="/WEB-INF/jsp/" /><property name="suffix" value=".jsp" /></bean>
--><!-- 4.扫描web相关的bean --><context:component-scan base-package="com.Controller" /></beans>

4.3 applicationContext.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"xsi:schemaLocation="http://www.springframework.org/schema/beanshttp://www.springframework.org/schema/beans/spring-beans.xsd"><import resource="spring-dao.xml"/><import resource="spring-service.xml"/><import resource="spring-mvc.xml"/></beans>

以上SSM架构，搭建完成

5.POJO层

因为设计的数据库中有4个表，分别是：user、type、news、film

所以对应创建四个实体类

public class user {private Integer id;private String username;private String paw;private Integer tele;private String email;// 有参\有参方法// Get\Set方法// toString()
}

public class types {private Integer id;private String type;// 有参\有参方法// Get\Set方法// toString()
}

news实体类中使用了JSR303检验机制，不加注解也是可以的

public class news {@NotNullprivate Integer ISDN;@NotNullprivate String title;@NotNullprivate String author;@DateTimeFormat(pattern = "yyyy-MM-dd")@Pastprivate Date date;@NotNullprivate String description;// 有参\有参方法// Get\Set方法// toString()
}

public class film {private Integer ISDN;private String name;private String director;private String actor;private String type;private String country;private String language;private Double score;private String photo;private String href;private String description;// 有参\有参方法// Get\Set方法// toString()
}

在这些实体类中，我使用的是直接添加构造方法；如果觉得麻烦，可以使用Lombok插件

6.Dao层

每一个Dao类都分别对应着一个实体类的操作

Mapper接口+Mapper.xml

6.1 UserMapper

public interface UserMapper {/*** 获取用户列表* @return*/public List<user> getUserList();/*** id查用户* @return*/public user getUserById(int id);/***  添加用户* @param user* @return*/public int insertUser(user user);/*** 修改用户个人信息* @return*/public int upUser(user user);/*** 修改密码* @param user* @return*/public int uppaw(user user);
}

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapperPUBLIC "-//mybatis.org//DTD Mapper 3.0//EN""http://mybatis.org/dtd/mybatis-3-mapper.dtd"><mapper namespace="com.zc.Dao.UserMapper"><select id="getUserList" resultType="com.zc.pojo.user">select * from film.user</select><select id="getUserById" resultType="com.zc.pojo.user">select * from film.user where id=#{id}</select><insert id="insertUser" parameterType="com.zc.pojo.user" >insert into film.user (username,paw,tele,email) values (#{username},#{paw},#{tele},#{email})</insert><update id="upUser" parameterType="com.zc.pojo.user">update film.user set username = #{username},tele = #{tele},email = #{email} where id = #{id}</update><update id="uppaw" parameterType="com.zc.pojo.user">update film.user set paw=#{paw} where id = #{id}</update>
</mapper>

6.2 TypesMapper

public interface TypesMapper {/*** 通过ID查找type* @param id* @return*/public types selectTypeByID(int id);/*** 查询全部* @return*/public List<types> Alltypes();/*** 通过id删除type* @param id* @return*/public int DeletetypeById(int id);/***  更新type* @param types* @return*/public int Updatetype(types types);/*** 添加type* @param types* @return*/public int addtype(types types);
}

6.3 NewsMapper

public interface NewsMapper {/*** 通过 ISDN 查找 new* @param ISDN* @return*/public news selectNewById(int ISDN);/***  查询全部新闻* @return*/public List<news> Allnews();/***  添加新闻* @param news* @return*/public int addNew(news news);/***  更新新闻* @param news* @return*/public int upNew(news news);/*** 通过 ISDN 删除新闻* @param ISDN* @return*/public int DelnewById(int ISDN);
}

6.4 FilmMapper

public interface FilmMapper {/***   查找全部电影* @return*/public List<film> AllFilm();/*** 通过ISDN查电影* @param ISDN* @return*/public List<film> selectfilmByISDN(int ISDN);/*** 通过导演查电影* @param director* @return*/public List<film> selectfilmByDir(String director);/***  通过类型查电影* @param type* @return*/public List<film> selectfilmBytype(String type);/*** 添加电影* @param film* @return*/public int AddFilm(film film);/*** 修改电影* @param film* @return*/public int upFilm(film film);/*** 通过ISDN 删除电影* @param ISDN* @return*/public int DelFilm(int ISDN);
}

7.Service层

每个Dao层也会有一个对应的Service实现层

7.1 UserService

public interface UserService {/*** 得到全部User数据* @return*/public  List<user> getUserList();/*** 插入一个User* @param user* @return*/public int insertUser(user user);/*** 更新用户信息* @param user* @return*/public int upUser(user user);/*** 更新用户密码* @param user* @return*/public int uppaw(user user);/*** 通过id查找用户* @param id* @return*/public user getUserById(int id);
}

@Service
public class UserServiceimpl implements UserService{@Autowiredprivate UserMapper userMapper;@Overridepublic List<user> getUserList() {return userMapper.getUserList();}@Overridepublic int insertUser(user user) {return userMapper.insertUser(user);}@Overridepublic int upUser(user user) {return userMapper.upUser(user);}@Overridepublic int uppaw(user user) {return userMapper.uppaw(user);}@Overridepublic user getUserById(int id) {return userMapper.getUserById(id);}
}

7.2 TypesService

public interface TypesService {/*** 通过ID查找type* @param id* @return*/public types selectTypeByID(int id);/*** 查询全部* @return*/public List<types> Alltypes();/*** 通过id删除type* @param id* @return*/public int DeletetypeById(int id);/***  更新type* @param types* @return*/public int Updatetype(types types);/*** 添加type* @param types* @return*/public int addtype(types types);
}

7.3 NewsService

public interface NewsService {/*** 通过 ISDN 查找 new* @param ISDN* @return*/public news selectNewById(int ISDN);/***  查询全部新闻* @return*/public List<news> Allnews();/***  添加新闻* @param news* @return*/public int addNew(news news);/***  更新新闻* @param news* @return*/public int upNew(news news);/*** 通过 ISDN 删除新闻* @param ISDN* @return*/public int DelnewById(int ISDN);
}

7.4 FilmService

public interface FilmService {/***   查找全部电影* @return*/public List<film> AllFilm();/*** 通过ISDN查电影* @param ISDN* @return*/public List<film> selectfilmByISDN(int ISDN);/*** 通过导演查电影* @param director* @return*/public List<film> selectfilmByDir(String director);/***  通过类型查电影* @param type* @return*/public List<film> selectfilmBytype(String type);/*** 添加电影* @param film* @return*/public int AddFilm(film film);/*** 修改电影* @param film* @return*/public int upFilm(film film);/*** 通过ISDN 删除电影* @param ISDN* @return*/public int DelFilm(int ISDN);
}

8.Controller层

Controller层的代码都是实现具体功能的代码

因为代码过长，在此只举例User、types的Controller层代码

@Controller
public class UserController {@Autowiredprivate   HttpServletRequest request;@Autowired@Qualifier("userServiceimpl")private UserService userService;/*** 登录* @param username* @param password* @param code* @return*/@RequestMapping("/Login")public String getUserList(String username, String password, String code){List<user> userList = userService.getUserList();for (user user : userList) {System.out.println(user);if(user.getUsername().equals(username)&&user.getPaw().equals(password)){HttpSession session = request.getSession();Object attribute = session.getAttribute(Constants.KAPTCHA_SESSION_KEY);if(code.equals(attribute)){session.setAttribute("user",user);return "main.jsp";}else {request.setAttribute("mgs", "验证码错误");return "index.jsp";}}}//  System.out.println(user.getUsername()+"-----"+user.getPaw());request.setAttribute("mgs", "用户名或密码错误");return "index.jsp";}/*** 注销* @return*/@RequestMapping("/exit")public String exit(){request.getSession().removeAttribute("user");return "index.jsp";}/*** 注册* @param user* @return*/@RequestMapping("/register")public String insertUser(user user){List<user> userList = userService.getUserList();for (user user1 : userList) {if (user1.getUsername().equals(user.getUsername())){request.setAttribute("mgs1", "已经存在该用户");return "index.jsp";}else {System.out.println(user);userService.insertUser(user);return "index.jsp";}}return "index.jsp";}/*** 修改用户信息* @param user* @return*/@RequestMapping("/upUser")public String upUser(user user){int i = userService.upUser(user);System.out.println(user+"-----"+i);if (i>0){user user1 = userService.getUserById(user.getId());request.getSession().setAttribute("user",user1);request.setAttribute("mgs4","修改成功");return "person/person_info.jsp";}else{request.setAttribute("mgs4","修改失败");return "person/person_info.jsp";}}/*** 修改密码* @param user* @return*/@RequestMapping("/uppaw")public String uppaw(user user, String paw1){user userById = userService.getUserById(user.getId());System.out.println(user+"----------"+paw1);if(userById.getPaw().equals(paw1)){userService.uppaw(user);user user1 = userService.getUserById(user.getId());request.getSession().setAttribute("user",user1);request.setAttribute("mgs3","修改密码成功");return "person/updatepwd.jsp";}else{request.setAttribute("mgs3","输入原始密码不对");return "person/updatepwd.jsp";}}
}

@Controller
public class TypesController {@Autowiredprivate HttpServletRequest request;@Autowired@Qualifier("typesServiceimpl")private TypesService typesService;/*** 查找全部种类* @param model* @return*/@RequestMapping("/alltypes")public String Alltypes(Model model){List<types> alltypes = typesService.Alltypes();model.addAttribute("alltypes",alltypes);return "film/File_cate.jsp";}/*** 添加种类* @param types* @return*/@RequestMapping("/addtype")public String addtype(types types){System.out.println(types);List<types> alltypes = typesService.Alltypes();for (com.zc.pojo.types alltype : alltypes) {if (alltype.getId().equals(types.getId())){request.setAttribute("addtype","已经存在该电影类别编号");return "forward:/alltypes";}else if (alltype.getType().equals(types.getType())){request.setAttribute("addtype","已经存在该电影类别");return "forward:/alltypes";}}int i = typesService.addtype(types);if(i>0){request.setAttribute("addtype","添加成功");return "forward:/alltypes";}else{request.setAttribute("addtype","添加失败");return "forward:/alltypes";}}/*** 更新种类* @param types* @return*/@RequestMapping("/uptype")public String Updatetype(types types){List<types> alltypes = typesService.Alltypes();for (com.zc.pojo.types alltype : alltypes) {if (alltype.getType().equals(types.getType())) {request.setAttribute("addtype", "已经存在该电影类别");return "forward:/alltypes";}else {int i = typesService.Updatetype(types);if(i>0){request.setAttribute("addtype","添加成功");return "forward:/alltypes";}else{request.setAttribute("addtype","添加失败");return "forward:/alltypes";}}}//System.out.println(types);return "forward:/alltypes";}/*** 删除种类* @param id* @return*/@RequestMapping("/deltype")public String Deltype(int id){int i = typesService.DeletetypeById(id);if(i>0){request.setAttribute("addtype","删除成功");return "forward:/alltypes";}else{request.setAttribute("addtype","删除失败");return "forward:/alltypes";}}
}

9.过滤器、拦截器

9.1 过滤器

public class LoginFilter implements Filter {@Overridepublic void init(FilterConfig filterConfig) throws ServletException {}@Overridepublic void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {HttpServletRequest request = (HttpServletRequest)servletRequest;HttpServletResponse response = (HttpServletResponse) servletResponse;String servletPath = request.getServletPath();  //获取客户端所请求的脚本文件的文件路径if(servletPath.equals("/index.jsp") ||servletPath.equals("/Login")||servletPath.equals(".js")||servletPath.equals(".css")||servletPath.equals(".png")){filterChain.doFilter(request,response);}else {HttpSession session = request.getSession();if (session.getAttribute("user") == null) {//  没有登录response.sendRedirect(request.getContextPath() + "/index.jsp");}else {filterChain.doFilter(request,response);}}}@Overridepublic void destroy() {}
}

9.2 拦截器

public class LoginInterceptor implements HandlerInterceptor {@Overridepublic boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws IOException, ServletException {if (request.getRequestURI().contains(".js")||request.getRequestURI().contains(".css")||request.getRequestURI().contains(".png")||request.getRequestURI().contains(".jpg")) {return true;}HttpSession session = request.getSession();if (session.getAttribute("user")!= null) {return true;}request.getRequestDispatcher(request.getContextPath()+"/index.jsp").forward(request,response);return false;}@Overridepublic void postHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, ModelAndView modelAndView) throws Exception {}@Overridepublic void afterCompletion(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, Exception e) throws Exception {}
}

在ApplicationContext.xml中配置:

<mvc:interceptors><mvc:interceptor><!--默认拦截的连接--><mvc:mapping path="/**"/><!--不拦截的连接--><mvc:exclude-mapping path="/Login"/><bean class="com.zc.Fliter.LoginInterceptor"/></mvc:interceptor>
</mvc:interceptors>

10.项目展示

该项目地址为：

Github：https://github.com/MoYu-zc/Film_manage

Gitee：https://gitee.com/MoYu-zc/film_manage

个人博客为：
MoYu’s HomePage