学习了一阵子的SSM框架，一直在各种博客，简书，慕课网学习，最后终于自己撸出来一个简单的个人相册。
项目的演示效果：
开发的工具及环境：
- IntelliJ IDEA: 2016
- Maven :3.0x
- Hbuilder(前端部分，可以用记事本代替2333)
- Java 8
项目流程（dao->service->web）：
1.添加所有依赖：
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<dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.11</version> <scope>test</scope> </dependency> <!--补全项目依赖--> <!--1.日志 java日志有:slf4j,log4j,logback,common-logging slf4j:是规范/接口 日志实现:log4j,logback,common-logging 使用:slf4j+logback --> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>1.7.12</version> </dependency> <dependency> <groupId>ch.qos.logback</groupId> <artifactId>logback-core</artifactId> <version>1.1.1</version> </dependency> <!--实现slf4j接口并整合--> <dependency> <groupId>ch.qos.logback</groupId> <artifactId>logback-classic</artifactId> <version>1.1.1</version> </dependency> <!--1.数据库相关依赖--> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.35</version> <scope>runtime</scope> </dependency> <dependency> <groupId>c3p0</groupId> <artifactId>c3p0</artifactId> <version>0.9.1.1</version> </dependency> <!--2.dao框架:MyBatis依赖--> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>3.3.0</version> </dependency> <!--mybatis自身实现的spring整合依赖--> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>1.2.3</version> </dependency> <!--3.Servlet web相关依赖--> <dependency> <groupId>taglibs</groupId> <artifactId>standard</artifactId> <version>1.1.2</version> </dependency> <dependency> <groupId>jstl</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>2.5.4</version> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>3.1.0</version> </dependency> <!--4:spring依赖--> <!--1)spring核心依赖--> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>4.1.7.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-beans</artifactId> <version>4.1.7.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>4.1.7.RELEASE</version> </dependency> <!--2)spring dao层依赖--> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>4.1.7.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-tx</artifactId> <version>4.1.7.RELEASE</version> </dependency> <!--3)springweb相关依赖--> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>4.1.7.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>4.1.7.RELEASE</version> </dependency> <!--4)spring test相关依赖--> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>4.1.7.RELEASE</version> </dependency> <!--添加redis依赖--> <dependency> <groupId>redis.clients</groupId> <artifactId>jedis</artifactId> <version>2.7.3</version> </dependency> <!--prostuff序列化依赖--> <dependency> <groupId>com.dyuproject.protostuff</groupId> <artifactId>protostuff-core</artifactId> <version>1.0.8</version> </dependency> <dependency> <groupId>com.dyuproject.protostuff</groupId> <artifactId>protostuff-runtime</artifactId> <version>1.0.8</version> </dependency> <dependency> <groupId>commons-fileupload</groupId> <artifactId>commons-fileupload</artifactId> <version>1.3.1</version> </dependency> |
2.添加Mybatis的配置文件：
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<?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> <!--配置全局属性--> <settings> <!--使用jdbc的getGeneratekeys获取自增主键值--> <setting name="useGeneratedKeys" value="true"/> <!--使用列别名替换列名 默认值为true select name as title(实体中的属性名是title) form table; 开启后mybatis会自动帮我们把表中name的值赋到对应实体的title属性中 --> <setting name="useColumnLabel" value="true"/> <!--开启驼峰命名转换Table:create_time到 Entity(createTime)--> <setting name="mapUnderscoreToCamelCase" value="true"/> </settings></configuration> |
这里最好去官网看最新配置文件的头配置http://www.mybatis.org/mybatis-3/zh/index.html
然后编写dao层的代码：
相册实体类
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public interface PictureDao { /** * @return 返回所有图片 */ List<Picture> getAllPictures(); /**上传图片，并且将图片名，图片描述信息插入数据库 * @param picName * @param content * @return插入成功返回1，失败0 */ int InsertPicture(@Param("picName") String picName, @Param("content") String content);} |
用户实体类
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public interface UserDao { /**如果查询到该用户就会返回1 * @param username,pwd * @return数据库被修改的行数 */ User getUserByName(@Param("username") String username, @Param("pwd") String pwd);} |
实体类创建好，我们就在resource文件夹下创建一个mapper文件夹，放我们dao层的映射文件。
UserDao.xml
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<?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.koali.dao.UserDao"><select id="getUserByName" resultType="com.koali.entity.User" > SELECT * FROM USER WHERE username=#{username} AND pwd=#{pwd}</select></mapper> |
PictureDao.xml
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<?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.koali.dao.PictureDao"> <select id="getAllPictures" resultType="com.koali.entity.Picture"> SELECT * FROM PICTURE </select> <insert id="InsertPicture"> INSERT INTO `picture` (`picname`,`content`) VALUES (#{picName},#{content}) </insert></mapper></mapper> |
最后整合到Spring里面。所以我再次在resource文件夹下创建一个spring文件夹，并且创建一个文件名为：
spring-dao.xml
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<?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 http://www.springframework.org/schema/context/spring-context.xsd"> <!--配置整合mybatis过程 1.配置数据库相关参数--> <context:property-placeholder location="classpath:jdbc.properties"/> <!--2.数据库连接池--> <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"> <!--配置连接池属性--> <property name="driverClass" value="${jdbc.driver}"/> <!-- 基本属性 url、user、password --> <property name="jdbcUrl" value="${jdbc.url}"/> <property name="user" value="${jdbc.username}"/> <property name="password" value="${jdbc.password}"/> <!--c3p0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="1000"/> <!--当获取连接失败重试次数--> <property name="acquireRetryAttempts" value="2"/> </bean> <!--约定大于配置--> <!--３.配置SqlSessionFactory对象--> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <!--往下才是mybatis和spring真正整合的配置--> <!--注入数据库连接池--> <property name="dataSource" ref="dataSource"/> <!--配置mybatis全局配置文件:mybatis-config.xml--> <property name="configLocation" value="classpath:mybatis-config.xml"/> <!--扫描entity包,使用别名,多个用;隔开--> <property name="typeAliasesPackage" value="com.elric.entity"/> <!--扫描sql配置文件:mapper需要的xml文件--> <property name="mapperLocations" value="classpath:mapper/*.xml"/> </bean> <!--４:配置扫描Dao接口包,动态实现DAO接口,注入到spring容器--> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <!--注入SqlSessionFactory--> <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/> <!-- 给出需要扫描的Dao接口--> <property name="basePackage" value="com.koali.dao"/> </bean></beans> |
因为spring-dao.xml里面有些属性要连接到我们的数据库，所以我们把我们的数据库的连接驱动，用户名什么鬼都写在一个叫
jdbc.properties
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jdbc.driver=com.mysql.jdbc.Driverjdbc.url=jdbc:mysql://localhost:3306/picture?useUnicode=true&characterEncoding=utf-8jdbc.username=Elricjdbc.password=881010 |
dao层编写结束（表示写blog比敲代码还累23333）！
3.编写Service层
因为这是个小Demo（博主刚学不久，还是一只小菜鸡）。所以Service的实现大抵跟dao差不多。
先写两个Service接口：
UserService
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public interface UserService { /**本次中我们只需要对用户身份做出判断然后给予url * @return 数据库查询到为1 */ User CheckUser(String username, String pwd);} |
PictureService
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public interface PictureService { /**查询所有照片 * @return 所有照片 */ List<Picture> getAllPicture(); /** * 这个服务就是PictureDao中的InsertP * @param picName * @param content * @return 数据库成功返回1，失败返回0 */ int InsertPicture(String picName, String content);} |
然后再写两个实现Service接口的实现类：PictureServiceImpl
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@Servicepublic class PictureServiceImpl implements PictureService { @Autowired private PictureDao pictureDao; public List<Picture> getAllPicture() { return pictureDao.getAllPictures(); } public int InsertPicture(String picName, String content) { return pictureDao.InsertPicture(picName,content); }} |
UserServiceImpl
PictureServiceImpl
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@Servicepublic class UserServiceImpl implements com.koali.service.UserService { @Autowired private UserDao userDao; public User CheckUser(String username, String pwd) { return userDao.getUserByName(username,pwd); }} |
然后写配置文件：
在resource中的spring文件夹下创建spring-service.xml
spring-service.xml
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<?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" xsi:schemaLocation="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.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd"> <!--扫描service包下所有使用注解的类型--> <context:component-scan base-package="com.koali.service"/> <!--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> <!--配置基于注解的声明式事务 默认使用注解来管理事务行为--> <tx:annotation-driven transaction-manager="transactionManager"/> |
到此Service层就写好了，这个比较简单。
3.web层的编写：
现在web.xml添加spring-mvc的前端控制器：
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<servlet> <servlet-name>seckill-dispatcher</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring/spring-*.xml</param-value> </init-param> </servlet> <servlet-mapping> <servlet-name>seckill-dispatcher</servlet-name> <!--默认匹配所有请求--> <url-pattern>/</url-pattern> </servlet-mapping><!--去除乱码的过滤器--> <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> |
然后在resourced的spring文件夹创建spring-web.xml
spring-web.xml
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<?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/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd"> <!--指明controller所在包，并扫描其中的注解--> <context:component-scan base-package="com.koali.web"/> <!--静态资源（js,image等）的访问--> <mvc:default-servlet-handler/> <!--开启注解--> <mvc:annotation-driven/> <!--ViewResolver视图解析器--> <!--用于支持Servlet，JSP视图解析--> <bean id="jspViewResolver" 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> <!--200*1024*1024即200M resolveLazily属性启用是为了推迟文件解析，以便捕获文件的异常--> <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <property name="maxUploadSize" value="209715200" /> <property name="resolveLazily" value="true" /> <property name="defaultEncoding" value="UTF-8"></property> </bean> <mvc:resources location="/WEB-INF/jsp/css/" mapping="/css/**" /> <mvc:resources location="/WEB-INF/jsp/fonts/" mapping="/fonts/**" /> <mvc:resources location="/WEB-INF/jsp/images/" mapping="/images/**" /> <mvc:resources location="/WEB-INF/jsp/js/" mapping="/js/**"/></beans> |
最后编写我们的前端控制器：
MainController
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@Controllerpublic class MainController { @Autowired private PictureService pictureService; @Autowired private UserService userService; @RequestMapping(value = "/") public String index(Model model){ List<Picture> pictures =pictureService.getAllPicture(); System.out.println(pictures.size()); model.addAttribute("pictures",pictures); return "index"; } @RequestMapping(value = "login") public String login(){ return "login"; } @RequestMapping(value = "checkandRedict") public String checkAndRedict(@Param("username") String username,@Param("pwd") String pwd){ User user = userService.CheckUser(username,pwd); System.out.println(user); if (user!=null){ return "upload"; }else { return "index"; } } @RequestMapping(value = "upload",method = RequestMethod.POST) public String upload(@RequestParam("file") MultipartFile file,@Param("content") String content, HttpServletRequest request,Model model) throws IOException{ //获取项目的根路径，将上传图片的路径与我们的资源路径在一起，才能显示 HttpSession session= request.getSession(); String path = session.getServletContext().getRealPath("/"); System.out.println("getRealPath('/'):"+path); int end = path.indexOf("t",19); String prePath = path.substring(0,end); String realPath = prePath+"target\\demo\\WEB-INF\\jsp\\images"; System.out.println("DEBUG:"+realPath); String picName = new Date().getTime()+".jpg"; if (!file.isEmpty()){ FileUtils.copyInputStreamToFile(file.getInputStream(),new File(realPath,new Date().getTime()+".jpg")); }else if(content==null){ content = "";//如果输入为null数据库不允许插入 } //图片类的名字保存为路径+名字方便后期前端提取 //将图片名字用时间戳保存，反正上传图片为中文乱码等问题 int code = pictureService.InsertPicture("images/"+picName,content); if (code==1) { List<Picture> pictures = pictureService.getAllPicture(); model.addAttribute("pictures", pictures); return "index"; }else return "index"; }} |
至此项目就到此为止！
最后献上我的项目的地址:SSM.rar
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
原文链接：http://www.jianshu.com/p/f8ed5902a68c
