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SSM框架整合之Spring+SpringMVC+MyBatis实践步骤

【字号: 日期:2023-07-11 17:58:00浏览:2作者:猪猪
目录1、基本概念1.1、Spring1.2、SpringMVC1.3、MyBatis2、开发环境搭建以及创建Maven Web项目3、SSM整合3.1、Maven引入需要的JAR包3.2、整合SpringMVC3.3 Spring与MyBatis的整合3.4、JUnit测试1、基本概念1.1、Spring

Spring是一个开源框架,Spring是于2003年兴起的一个轻量级的Java开发框架,由RodJohnson在其著作ExpertOne-On-OneJ2EEDevelopmentandDesign中阐述的部分理念和原型衍生而来。它是为了解决企业应用开发的复杂性而创建的。Spring使用基本的JavaBean来完成以前只可能由EJB完成的事情。然而,Spring的用途不仅限于服务器端的开发。从简单性、可测试性和松耦合的角度而言,任何Java应用都可以从Spring中受益。简单来说,Spring是一个轻量级的控制反转(IoC)和面向切面(AOP)的容器框架。

1.2、SpringMVC

SpringMVC属于SpringFrameWork的后续产品,已经融合在SpringWebFlow里面。SpringMVC分离了控制器、模型对象、分派器以及处理程序对象的角色,这种分离让它们更容易进行定制。

1.3、MyBatis

MyBatis本是apache的一个开源项目iBatis,2010年这个项目由apachesoftwarefoundation迁移到了googlecode,并且改名为MyBatis。MyBatis是一个基于Java的持久层框架。iBATIS提供的持久层框架包括SQLMaps和DataAccessObjects(DAO)MyBatis消除了几乎所有的JDBC代码和参数的手工设置以及结果集的检索。MyBatis使用简单的XML或注解用于配置和原始映射,将接口和Java的POJOs(PlainOldJavaObjects,普通的Java对象)映射成数据库中的记录。

2、开发环境搭建以及创建Maven Web项目

参看之前的博文:https://www.jb51.net/article/131269.htm

3、SSM整合

下面主要介绍三大框架的整合,至于环境的搭建以及项目的创建,参看上面的博文。这次整合我分了2个配置文件,分别是spring-mybatis.xml,包含spring和mybatis的配置文件,还有个是spring-mvc的配置文件,此外有2个资源文件:jdbc.propertis和log4j.properties。完整目录结构如下(最后附上源码下载地址):

SSM框架整合之Spring+SpringMVC+MyBatis实践步骤

使用框架的版本:

Spring4.0.2RELEASE

SpringMVC4.0.2RELEASE

MyBatis3.2.6

3.1、Maven引入需要的JAR包

在pom.xml中引入jar包

<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/maven-v4_0_0.xsd'> <modelVersion>4.0.0</modelVersion> <groupId>com.javen.maven01</groupId> <artifactId>maven01</artifactId> <packaging>war</packaging> <version>0.0.1-SNAPSHOT</version> <name>maven01 Maven Webapp</name> <url>http://maven.apache.org</url><properties> <!-- spring版本号 --> <spring.version>4.0.2.RELEASE</spring.version> <!-- mybatis版本号 --> <mybatis.version>3.2.6</mybatis.version> <!-- log4j日志文件管理包版本 --> <slf4j.version>1.7.7</slf4j.version> <log4j.version>1.2.17</log4j.version> </properties> <dependencies><dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>3.8.1</version> <!-- 表示开发的时候引入,发布的时候不会加载此包 --> <scope>test</scope></dependency><!-- <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>3.1.0</version></dependency> --> <!-- spring核心包 --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-oxm</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>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aop</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context-support</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>${spring.version}</version> </dependency> <!-- mybatis核心包 --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>${mybatis.version}</version> </dependency> <!-- mybatis/spring包 --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>1.2.2</version> </dependency> <!-- 导入java ee jar 包 --> <dependency> <groupId>javax</groupId> <artifactId>javaee-api</artifactId> <version>7.0</version> </dependency> <!-- 导入Mysql数据库链接jar包 --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.36</version> </dependency> <!-- 导入dbcp的jar包,用来在applicationContext.xml中配置数据库 --> <dependency> <groupId>commons-dbcp</groupId> <artifactId>commons-dbcp</artifactId> <version>1.2.2</version> </dependency> <!-- JSTL标签类 --> <dependency> <groupId>jstl</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> <!-- 日志文件管理包 --> <!-- log start --> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>${log4j.version}</version> </dependency> <!-- 格式化对象,方便输出日志 --> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>1.1.41</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>${slf4j.version}</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> <version>${slf4j.version}</version> </dependency> <!-- log end --> <!-- 映入JSON --> <dependency> <groupId>org.codehaus.jackson</groupId> <artifactId>jackson-mapper-asl</artifactId> <version>1.9.13</version> </dependency> <!-- 上传组件包 --> <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>2.4</version> </dependency> <dependency> <groupId>commons-codec</groupId> <artifactId>commons-codec</artifactId> <version>1.9</version> </dependency> </dependencies><build><finalName>maven01</finalName><plugins> <plugin><groupId>org.eclipse.jetty</groupId><artifactId>jetty-maven-plugin</artifactId><version>9.2.8.v20150217</version><configuration> <httpConnector><port>80</port> </httpConnector> <stopKey>shutdown</stopKey> <stopPort>9966</stopPort></configuration> </plugin></plugins> </build></project>3.2、整合SpringMVC

3.2.1、配置spring-mvc.xml

配置里面的注释也很详细,主要是自动扫描控制器,视图模式,注解的启动这三个。

<?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:p='http://www.springframework.org/schema/p' 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-3.1.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd'> <!-- 自动扫描该包,使SpringMVC认为包下用了@controller注解的类是控制器 --> <context:component-scan base-package='com.javen.controller' /> <!-- 扩充了注解驱动,可以将请求参数绑定到控制器参数 --> <mvc:annotation-driven/> <!-- 静态资源处理 css js imgs --> <mvc:resources location='/resources/**' mapping='/resources'/><!--避免IE执行AJAX时,返回JSON出现下载文件 --> <bean class='org.springframework.http.converter.json.MappingJacksonHttpMessageConverter'> <property name='supportedMediaTypes'> <list> <value>text/html;charset=UTF-8</value> </list> </property> </bean> <!-- 启动SpringMVC的注解功能,完成请求和注解POJO的映射 --> <bean class='org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter'> <property name='messageConverters'> <list> <ref bean='mappingJacksonHttpMessageConverter' /> <!-- JSON转换器 --> </list> </property> </bean> <!-- 配置文件上传,如果没有使用文件上传可以不用配置,当然如果不配,那么配置文件中也不必引入上传组件包 --> <bean class='org.springframework.web.multipart.commons.CommonsMultipartResolver'> <!-- 默认编码 --> <property name='defaultEncoding' value='utf-8' /> <!-- 文件大小最大值 --> <property name='maxUploadSize' value='10485760000' /> <!-- 内存中的最大值 --> <property name='maxInMemorySize' value='40960' /> <!-- 启用是为了推迟文件解析,以便捕获文件大小异常 --><property name='resolveLazily' value='true'/> </bean> <!-- 配置ViewResolver 。可用多个ViewResolver 。使用order属性排序。 InternalResourceViewResolver 放在最后--> <bean class='org.springframework.web.servlet.view.ContentNegotiatingViewResolver'> <property name='order' value='1'></property><property name='mediaTypes'> <map><!-- 告诉视图解析器,返回的类型为json格式 --><entry key='json' value='application/json' /><entry key='xml' value='application/xml' /><entry key='htm' value='text/htm' /> </map></property><property name='defaultViews'> <list><!-- ModelAndView里的数据变成JSON --><bean /> </list></property><property name='ignoreAcceptHeader' value='true'></property> </bean> <!-- 定义跳转的文件的前后缀 ,视图模式配置--> <bean class='org.springframework.web.servlet.view.InternalResourceViewResolver'> <!-- 这里的配置我的理解是自动给后面action的方法return的字符串加上前缀和后缀,变成一个 可用的url地址 --> <property name='prefix' value='/WEB-INF/jsp/' /> <property name='suffix' value='.jsp' /> </bean> </beans>

3.2.2、配置web.xml文件

配置的spring-mvc的Servlet就是为了完成SpringMVC+MAVEN的整合。

web.xml

<?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' xsi:schemaLocation='http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd' version='3.0'> <display-name>Archetype Created Web Application</display-name> <!-- Spring和mybatis的配置文件 --> <!-- <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring-mybatis.xml</param-value> </context-param> --> <!-- 编码过滤器 --> <filter> <filter-name>encodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <async-supported>true</async-supported> <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> <!-- Spring监听器 --> <!-- <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> --> <!-- 防止Spring内存溢出监听器 --> <!-- <listener> <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class> </listener> --> <!-- Spring MVC servlet --> <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:spring-mvc.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> <async-supported>true</async-supported> </servlet> <servlet-mapping> <servlet-name>SpringMVC</servlet-name> <!-- 此处可以可以配置成*.do,对应struts的后缀习惯 --> <url-pattern>/</url-pattern> </servlet-mapping> <welcome-file-list> <welcome-file>/index.jsp</welcome-file> </welcome-file-list> </web-app>

3.2.3、Log4j的配置

为了方便调试,一般都会使用日志来输出信息,Log4j是Apache的一个开放源代码项目,通过使用Log4j,我们可以控制日志信息输送的目的地是控制台、文件、GUI组件,甚至是套接口服务器、NT的事件记录器、UNIXSyslog守护进程等;我们也可以控制每一条日志的输出格式;通过定义每一条日志信息的级别,我们能够更加细致地控制日志的生成过程。

Log4j的配置很简单,而且也是通用的,下面给出一个基本的配置,换到其他项目中也无需做多大的调整,如果想做调整或者想了解Log4j的各种配置,参看我转载的一篇博文,很详细:https://www.jb51.net/article/132334.htm

下面给出配置文件目录:

SSM框架整合之Spring+SpringMVC+MyBatis实践步骤

log4j.properties

log4j.rootLogger=INFO,Console,File #定义日志输出目的地为控制台 log4j.appender.Console=org.apache.log4j.ConsoleAppender log4j.appender.Console.Target=System.out #可以灵活地指定日志输出格式,下面一行是指定具体的格式 log4j.appender.Console.layout = org.apache.log4j.PatternLayout log4j.appender.Console.layout.ConversionPattern=[%c] - %m%n #文件大小到达指定尺寸的时候产生一个新的文件 log4j.appender.File = org.apache.log4j.RollingFileAppender #指定输出目录 log4j.appender.File.File = logs/ssm.log #定义文件最大大小 log4j.appender.File.MaxFileSize = 10MB # 输出所以日志,如果换成DEBUG表示输出DEBUG以上级别日志 log4j.appender.File.Threshold = ALL log4j.appender.File.layout = org.apache.log4j.PatternLayout log4j.appender.File.layout.ConversionPattern =[%p] [%d{yyyy-MM-dd HH:mm:ss}][%c]%m%n

3.2.4、使用Jetty测试

SSM框架整合之Spring+SpringMVC+MyBatis实践步骤

package com.javen.model;public class User { private Integer id; private String userName; private String password; private Integer age; 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 == null ? null : userName.trim(); } public String getPassword() {return password; } public void setPassword(String password) {this.password = password == null ? null : password.trim(); } public Integer getAge() {return age; } public void setAge(Integer age) {this.age = age; } @Override public String toString() {return 'User [id=' + id + ', userName=' + userName + ', password='+ password + ', age=' + age + ']'; }}

package com.javen.controller;import javax.servlet.http.HttpServletRequest;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod;import com.javen.model.User; @Controller @RequestMapping('/user') // /user/**public class UserController { private static Logger log=LoggerFactory.getLogger(UserController.class); // /user/test?id=1 @RequestMapping(value='/test',method=RequestMethod.GET) public String test(HttpServletRequest request,Model model){ int userId = Integer.parseInt(request.getParameter('id')); System.out.println('userId:'+userId);User user=null;if (userId==1) { user = new User(); user.setAge(11); user.setId(1); user.setPassword('123'); user.setUserName('javen');} log.debug(user.toString());model.addAttribute('user', user); return 'index'; } }

SSM框架整合之Spring+SpringMVC+MyBatis实践步骤SSM框架整合之Spring+SpringMVC+MyBatis实践步骤

在浏览器中输入:http://localhost/user/test?id=1

SSM框架整合之Spring+SpringMVC+MyBatis实践步骤

到此 SpringMVC+Maven 整合完毕

3.3 Spring与MyBatis的整合

取消3.2.2 web.xml中注释的代码

3.3.1、建立JDBC属性文件

jdbc.properties(文件编码修改为utf-8)

driver=com.mysql.jdbc.Driverurl=jdbc:mysql://localhost:3306/mavenusername=rootpassword=root#定义初始连接数 initialSize=0 #定义最大连接数 maxActive=20 #定义最大空闲 maxIdle=20 #定义最小空闲 minIdle=1 #定义最长等待时间 maxWait=60000

此时的目录结构为

SSM框架整合之Spring+SpringMVC+MyBatis实践步骤

3.3.2、建立spring-mybatis.xml配置文件

这个文件就是用来完成spring和mybatis的整合的。这里面也没多少行配置,主要的就是自动扫描,自动注入,配置数据库。注释也很详细,大家看看就明白了。

spring-mybatis.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:p='http://www.springframework.org/schema/p' 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-3.1.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd'> <!-- 自动扫描 --> <context:component-scan base-package='com.javen' /> <!-- 引入配置文件 --> <bean class='org.springframework.beans.factory.config.PropertyPlaceholderConfigurer'> <property name='location' value='classpath:jdbc.properties' /> </bean><bean destroy-method='close'> <property name='driverClassName' value='${driver}' /> <property name='url' value='${url}' /> <property name='username' value='${username}' /> <property name='password' value='${password}' /> <!-- 初始化连接大小 --> <property name='initialSize' value='${initialSize}'></property> <!-- 连接池最大数量 --> <property name='maxActive' value='${maxActive}'></property> <!-- 连接池最大空闲 --> <property name='maxIdle' value='${maxIdle}'></property> <!-- 连接池最小空闲 --> <property name='minIdle' value='${minIdle}'></property> <!-- 获取连接最大等待时间 --> <property name='maxWait' value='${maxWait}'></property> </bean><!-- spring和MyBatis完美整合,不需要mybatis的配置映射文件 --> <bean class='org.mybatis.spring.SqlSessionFactoryBean'> <property name='dataSource' ref='dataSource' /> <!-- 自动扫描mapping.xml文件 --> <property name='mapperLocations' value='classpath:com/javen/mapping/*.xml'></property> </bean><!-- DAO接口所在包名,Spring会自动查找其下的类 --> <bean class='org.mybatis.spring.mapper.MapperScannerConfigurer'> <property name='basePackage' value='com.javen.dao' /> <property name='sqlSessionFactoryBeanName' value='sqlSessionFactory'></property> </bean><!-- (事务管理)transaction manager, use JtaTransactionManager for global tx --> <bean class='org.springframework.jdbc.datasource.DataSourceTransactionManager'> <property name='dataSource' ref='dataSource' /> </bean> </beans>3.4、JUnit测试

经过以上步骤,我们已经完成了Spring和mybatis的整合,这样我们就可以编写一段测试代码来试试是否成功了。

3.4.1、创建测试用表

既然我们需要测试,那么我们就需要建立在数据库中建立一个测试表,这个表建的很简单,SQL语句为:

-- ------------------------------ Table structure for `user_t`-- ----------------------------DROP TABLE IF EXISTS `user_t`;CREATE TABLE `user_t` ( `id` int(11) NOT NULL AUTO_INCREMENT, `user_name` varchar(40) NOT NULL, `password` varchar(255) NOT NULL, `age` int(4) NOT NULL, PRIMARY KEY (`id`)) ENGINE=InnoDB AUTO_INCREMENT=3 DEFAULT CHARSET=utf8;-- ------------------------------ Records of user_t-- ----------------------------INSERT INTO `user_t` VALUES (’1’, ’测试’, ’345’, ’24’);INSERT INTO `user_t` VALUES (’2’, ’javen’, ’123’, ’10’);

3.4.2、利用MyBatis Generator自动创建代码

参考博文:https://www.jb51.net/article/128909.htm

这个可根据表自动创建实体类、MyBatis映射文件以及DAO接口,当然,我习惯将生成的接口名改为IUserDao,而不是直接用它生成的UserMapper。如果不想麻烦就可以不改。完成后将文件复制到工程中。如图:

SSM框架整合之Spring+SpringMVC+MyBatis实践步骤

3.4.3、建立Service接口和实现类

SSM框架整合之Spring+SpringMVC+MyBatis实践步骤

下面给出具体的内容:

IUserService.jave

package com.javen.service; import com.javen.model.User; public interface IUserService { public User getUserById(int userId); }

UserServiceImpl.java

package com.javen.service.impl;import javax.annotation.Resource; import org.springframework.stereotype.Service; import com.javen.dao.IUserDao;import com.javen.model.User;import com.javen.service.IUserService; @Service('userService') public class UserServiceImpl implements IUserService { @Resource private IUserDao userDao; public User getUserById(int userId) { // TODO Auto-generated method stub return this.userDao.selectByPrimaryKey(userId); } }

3.4.4、建立测试类

测试类在src/test/java中建立,下面测试类中注释掉的部分是不使用Spring时,一般情况下的一种测试方法;如果使用了Spring那么就可以使用注解的方式来引入配置文件和类,然后再将service接口对象注入,就可以进行测试了。

如果测试成功,表示Spring和Mybatis已经整合成功了。输出信息使用的是Log4j打印到控制台。

package com.javen.testmybatis;import javax.annotation.Resource; import org.apache.log4j.Logger; import org.junit.Test;import org.junit.runner.RunWith;import org.springframework.test.context.ContextConfiguration; import org.springframework.test.context.junit4.SpringJUnit4ClassRunner; import com.alibaba.fastjson.JSON; import com.javen.model.User;import com.javen.service.IUserService; @RunWith(SpringJUnit4ClassRunner.class) //表示继承了SpringJUnit4ClassRunner类 @ContextConfiguration(locations = {'classpath:spring-mybatis.xml'}) public class TestMyBatis { private static Logger logger = Logger.getLogger(TestMyBatis.class); // private ApplicationContext ac = null; @Resource private IUserService userService = null; // @Before // public void before() { // ac = new ClassPathXmlApplicationContext('applicationContext.xml'); // userService = (IUserService) ac.getBean('userService'); // }@Test public void test1() { User user = userService.getUserById(1); // System.out.println(user.getUserName()); // logger.info('值:'+user.getUserName()); logger.info(JSON.toJSONString(user)); } }

测试结果

SSM框架整合之Spring+SpringMVC+MyBatis实践步骤

3.4.5、建立UserController类

UserController.java控制器

package com.javen.controller;import java.io.File;import java.io.IOException;import java.util.Map;import javax.annotation.Resource;import javax.servlet.http.HttpServletRequest;import org.apache.commons.io.FileUtils;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.http.HttpStatus;import org.springframework.http.ResponseEntity;import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.PathVariable;import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod;import org.springframework.web.bind.annotation.RequestParam;import org.springframework.web.bind.annotation.ResponseBody;import org.springframework.web.multipart.MultipartFile;import com.javen.model.User;import com.javen.service.IUserService; @Controller @RequestMapping('/user') // /user/**public class UserController { private static Logger log=LoggerFactory.getLogger(UserController.class); @Resource private IUserService userService; // /user/test?id=1 @RequestMapping(value='/test',method=RequestMethod.GET) public String test(HttpServletRequest request,Model model){ int userId = Integer.parseInt(request.getParameter('id')); System.out.println('userId:'+userId);User user=null;if (userId==1) { user = new User(); user.setAge(11); user.setId(1); user.setPassword('123'); user.setUserName('javen');} log.debug(user.toString());model.addAttribute('user', user); return 'index'; } // /user/showUser?id=1 @RequestMapping(value='/showUser',method=RequestMethod.GET) public String toIndex(HttpServletRequest request,Model model){ int userId = Integer.parseInt(request.getParameter('id')); System.out.println('userId:'+userId);User user = this.userService.getUserById(userId); log.debug(user.toString());model.addAttribute('user', user); return 'showUser'; } // /user/showUser2?id=1 @RequestMapping(value='/showUser2',method=RequestMethod.GET) public String toIndex2(@RequestParam('id') String id,Model model){ int userId = Integer.parseInt(id); System.out.println('userId:'+userId);User user = this.userService.getUserById(userId); log.debug(user.toString());model.addAttribute('user', user); return 'showUser'; } // /user/showUser3/{id} @RequestMapping(value='/showUser3/{id}',method=RequestMethod.GET) public String toIndex3(@PathVariable('id')String id,Map<String, Object> model){ int userId = Integer.parseInt(id); System.out.println('userId:'+userId);User user = this.userService.getUserById(userId); log.debug(user.toString());model.put('user', user); return 'showUser'; } // /user/{id} @RequestMapping(value='/{id}',method=RequestMethod.GET) public @ResponseBody User getUserInJson(@PathVariable String id,Map<String, Object> model){ int userId = Integer.parseInt(id); System.out.println('userId:'+userId);User user = this.userService.getUserById(userId); log.info(user.toString());return user; } // /user/{id} @RequestMapping(value='/jsontype/{id}',method=RequestMethod.GET) public ResponseEntity<User> getUserInJson2(@PathVariable String id,Map<String, Object> model){ int userId = Integer.parseInt(id); System.out.println('userId:'+userId);User user = this.userService.getUserById(userId); log.info(user.toString());return new ResponseEntity<User>(user,HttpStatus.OK); } //文件上传、 @RequestMapping(value='/upload') public String showUploadPage(){return 'user_admin/file'; }@RequestMapping(value='/doUpload',method=RequestMethod.POST) public String doUploadFile(@RequestParam('file')MultipartFile file) throws IOException{if (!file.isEmpty()) { log.info('Process file:{}',file.getOriginalFilename());}FileUtils.copyInputStreamToFile(file.getInputStream(), new File('E:',System.currentTimeMillis()+file.getOriginalFilename()));return 'succes'; }}

3.4.6、新建jsp页面

file.jsp

<%@ page language='java' contentType='text/html; charset=utf-8' pageEncoding='utf-8'%><!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>Insert title here</title></head><body> <h1>上传文件</h1> <form method='post' action='/user/doUpload' enctype='multipart/form-data'><input type='file' name='file'/><input type='submit' value='上传文件'/> </form></body></html>

index.jsp

<html><body><h2>Hello World!</h2></body></html>

showUser.jsp

<%@ page language='java' import='java.util.*' pageEncoding='utf-8'%> <!DOCTYPE HTML PUBLIC '-//W3C//DTD HTML 4.01 Transitional//EN'> <html> <head> <title>测试</title> </head><body> ${user.userName} </body> </html>

至此,完成Spring+SpingMVC+mybatis这三大框架整合完成。

3.4.7、部署项目

输入地址:http://localhost/user/jsontype/2

SSM框架整合之Spring+SpringMVC+MyBatis实践步骤

项目下载地址:https://github.com/Javen205/SSM

参考博客:https://www.jb51.net/article/125921.htm

以上就是SSM框架整合之Spring+SpringMVC+MyBatis实践步骤的详细内容,更多关于SSM框架的资料请关注好吧啦网其它相关文章!

以上就是SSM框架整合之Spring+SpringMVC+MyBatis实践步骤的详细内容,更多关于SSM框架的资料请关注好吧啦网其它相关文章!

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