SSM框架整合之Spring+SpringMVC+MyBatis實踐步驟
Spring是一個開源框架，Spring是于2003年興起的一個輕量級的Java開發框架，由RodJohnson在其著作ExpertOne-On-OneJ2EEDevelopmentandDesign中闡述的部分理念和原型衍生而來。它是為了解決企業應用開發的復雜性而創建的。Spring使用基本的JavaBean來完成以前只可能由EJB完成的事情。然而，Spring的用途不僅限于服務器端的開發。從簡單性、可測試性和松耦合的角度而言，任何Java應用都可以從Spring中受益。簡單來說，Spring是一個輕量級的控制反轉（IoC）和面向切面（AOP）的容器框架。
1.2、SpringMVCSpringMVC屬于SpringFrameWork的后續產品，已經融合在SpringWebFlow里面。SpringMVC分離了控制器、模型對象、分派器以及處理程序對象的角色，這種分離讓它們更容易進行定制。
1.3、MyBatisMyBatis本是apache的一個開源項目iBatis,2010年這個項目由apachesoftwarefoundation遷移到了googlecode，并且改名為MyBatis。MyBatis是一個基于Java的持久層框架。iBATIS提供的持久層框架包括SQLMaps和DataAccessObjects（DAO）MyBatis消除了幾乎所有的JDBC代碼和參數的手工設置以及結果集的檢索。MyBatis使用簡單的XML或注解用于配置和原始映射，將接口和Java的POJOs（PlainOldJavaObjects，普通的Java對象）映射成數據庫中的記錄。
2、開發環境搭建以及創建Maven Web項目參看之前的博文：https://www.jb51.net/article/131269.htm
3、SSM整合下面主要介紹三大框架的整合，至于環境的搭建以及項目的創建，參看上面的博文。這次整合我分了2個配置文件，分別是spring-mybatis.xml，包含spring和mybatis的配置文件，還有個是spring-mvc的配置文件，此外有2個資源文件：jdbc.propertis和log4j.properties。完整目錄結構如下（最后附上源碼下載地址）：
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版本號 --> <spring.version>4.0.2.RELEASE</spring.version> <!-- mybatis版本號 --> <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> <!-- 表示開發的時候引入，發布的時候不會加載此包 --> <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> <!-- 導入java ee jar 包 --> <dependency> <groupId>javax</groupId> <artifactId>javaee-api</artifactId> <version>7.0</version> </dependency> <!-- 導入Mysql數據庫鏈接jar包 --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.36</version> </dependency> <!-- 導入dbcp的jar包，用來在applicationContext.xml中配置數據庫 --> <dependency> <groupId>commons-dbcp</groupId> <artifactId>commons-dbcp</artifactId> <version>1.2.2</version> </dependency> <!-- JSTL標簽類 --> <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>${log4j.version}</version> </dependency> <!-- 格式化對象，方便輸出日志 --> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>1.1.41</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>${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> <!-- 上傳組件包 --> <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
配置里面的注釋也很詳細，主要是自動掃描控制器，視圖模式，注解的啟動這三個。
<?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'> <!-- 自動掃描該包，使SpringMVC認為包下用了@controller注解的類是控制器 --> <context:component-scan base-package='com.javen.controller' /> <!-- 擴充了注解驅動，可以將請求參數綁定到控制器參數 --> <mvc:annotation-driven/> <!-- 靜態資源處理 css js imgs --> <mvc:resources location='/resources/**' mapping='/resources'/><!--避免IE執行AJAX時，返回JSON出現下載文件 --> <bean class='org.springframework.http.converter.json.MappingJacksonHttpMessageConverter'> <property name='supportedMediaTypes'> <list> <value>text/html;charset=UTF-8</value> </list> </property> </bean> <!-- 啟動SpringMVC的注解功能，完成請求和注解POJO的映射 --> <bean class='org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter'> <property name='messageConverters'> <list> <ref bean='mappingJacksonHttpMessageConverter' /> <!-- JSON轉換器 --> </list> </property> </bean> <!-- 配置文件上傳，如果沒有使用文件上傳可以不用配置，當然如果不配，那么配置文件中也不必引入上傳組件包 --> <bean class='org.springframework.web.multipart.commons.CommonsMultipartResolver'> <!-- 默認編碼 --> <property name='defaultEncoding' value='utf-8' /> <!-- 文件大小最大值 --> <property name='maxUploadSize' value='10485760000' /> <!-- 內存中的最大值 --> <property name='maxInMemorySize' value='40960' /> <!-- 啟用是為了推遲文件解析，以便捕獲文件大小異常 --><property name='resolveLazily' value='true'/> </bean> <!-- 配置ViewResolver 。可用多個ViewResolver 。使用order屬性排序。 InternalResourceViewResolver 放在最后--> <bean class='org.springframework.web.servlet.view.ContentNegotiatingViewResolver'> <property name='order' value='1'></property><property name='mediaTypes'> <map><!-- 告訴視圖解析器，返回的類型為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里的數據變成JSON --><bean /> </list></property><property name='ignoreAcceptHeader' value='true'></property> </bean> <!-- 定義跳轉的文件的前后綴 ，視圖模式配置--> <bean class='org.springframework.web.servlet.view.InternalResourceViewResolver'> <!-- 這里的配置我的理解是自動給后面action的方法return的字符串加上前綴和后綴，變成一個 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就是為了完成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> --> <!-- 編碼過濾器 --> <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監聽器 --> <!-- <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> --> <!-- 防止Spring內存溢出監聽器 --> <!-- <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> <!-- 此處可以可以配置成*.do，對應struts的后綴習慣 --> <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
為了方便調試，一般都會使用日志來輸出信息，Log4j是Apache的一個開放源代碼項目，通過使用Log4j，我們可以控制日志信息輸送的目的地是控制臺、文件、GUI組件，甚至是套接口服務器、NT的事件記錄器、UNIXSyslog守護進程等；我們也可以控制每一條日志的輸出格式；通過定義每一條日志信息的級別，我們能夠更加細致地控制日志的生成過程。
Log4j的配置很簡單，而且也是通用的，下面給出一個基本的配置，換到其他項目中也無需做多大的調整，如果想做調整或者想了解Log4j的各種配置，參看我轉載的一篇博文，很詳細：https://www.jb51.net/article/132334.htm
下面給出配置文件目錄：
log4j.properties
log4j.rootLogger=INFO,Console,File #定義日志輸出目的地為控制臺 log4j.appender.Console=org.apache.log4j.ConsoleAppender log4j.appender.Console.Target=System.out #可以靈活地指定日志輸出格式，下面一行是指定具體的格式 log4j.appender.Console.layout = org.apache.log4j.PatternLayout log4j.appender.Console.layout.ConversionPattern=[%c] - %m%n #文件大小到達指定尺寸的時候產生一個新的文件 log4j.appender.File = org.apache.log4j.RollingFileAppender #指定輸出目錄 log4j.appender.File.File = logs/ssm.log #定義文件最大大小 log4j.appender.File.MaxFileSize = 10MB # 輸出所以日志，如果換成DEBUG表示輸出DEBUG以上級別日志 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測試
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'; } }
在瀏覽器中輸入：http://localhost/user/test?id=1
到此 SpringMVC+Maven 整合完畢
3.3 Spring與MyBatis的整合取消3.2.2 web.xml中注釋的代碼
3.3.1、建立JDBC屬性文件
jdbc.properties（文件編碼修改為utf-8）
driver=com.mysql.jdbc.Driverurl=jdbc:mysql://localhost:3306/mavenusername=rootpassword=root#定義初始連接數 initialSize=0 #定義最大連接數 maxActive=20 #定義最大空閑 maxIdle=20 #定義最小空閑 minIdle=1 #定義最長等待時間 maxWait=60000
此時的目錄結構為
3.3.2、建立spring-mybatis.xml配置文件
這個文件就是用來完成spring和mybatis的整合的。這里面也沒多少行配置，主要的就是自動掃描，自動注入，配置數據庫。注釋也很詳細，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'> <!-- 自動掃描 --> <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='${password}' /> <!-- 初始化連接大小 --> <property name='initialSize' value='${initialSize}'></property> <!-- 連接池最大數量 --> <property name='maxActive' value='${maxActive}'></property> <!-- 連接池最大空閑 --> <property name='maxIdle' value='${maxIdle}'></property> <!-- 連接池最小空閑 --> <property name='minIdle' value='${minIdle}'></property> <!-- 獲取連接最大等待時間 --> <property name='maxWait' value='${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' /> <!-- 自動掃描mapping.xml文件 --> <property name='mapperLocations' value='classpath:com/javen/mapping/*.xml'></property> </bean><!-- DAO接口所在包名，Spring會自動查找其下的類 --> <bean class='org.mybatis.spring.mapper.MapperScannerConfigurer'> <property name='basePackage' value='com.javen.dao' /> <property name='sqlSessionFactoryBeanName' value='sqlSessionFactory'></property> </bean><!-- (事務管理)transaction manager, use JtaTransactionManager for global tx --> <bean class='org.springframework.jdbc.datasource.DataSourceTransactionManager'> <property name='dataSource' ref='dataSource' /> </bean> </beans>3.4、JUnit測試
經過以上步驟，我們已經完成了Spring和mybatis的整合，這樣我們就可以編寫一段測試代碼來試試是否成功了。
3.4.1、創建測試用表
既然我們需要測試，那么我們就需要建立在數據庫中建立一個測試表，這個表建的很簡單，SQL語句為：
-- ------------------------------ 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’, ’測試’, ’345’, ’24’);INSERT INTO `user_t` VALUES (’2’, ’javen’, ’123’, ’10’);
3.4.2、利用MyBatis Generator自動創建代碼
參考博文：https://www.jb51.net/article/128909.htm
這個可根據表自動創建實體類、MyBatis映射文件以及DAO接口，當然，我習慣將生成的接口名改為IUserDao，而不是直接用它生成的UserMapper。如果不想麻煩就可以不改。完成后將文件復制到工程中。如圖：
3.4.3、建立Service接口和實現類
下面給出具體的內容：
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、建立測試類
測試類在src/test/java中建立，下面測試類中注釋掉的部分是不使用Spring時，一般情況下的一種測試方法；如果使用了Spring那么就可以使用注解的方式來引入配置文件和類，然后再將service接口對象注入，就可以進行測試了。
如果測試成功，表示Spring和Mybatis已經整合成功了。輸出信息使用的是Log4j打印到控制臺。
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) //表示繼承了SpringJUnit4ClassRunner類 @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)); } }
測試結果
3.4.5、建立UserController類
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); } //文件上傳、 @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頁面
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>上傳文件</h1> <form method='post' action='/user/doUpload' enctype='multipart/form-data'><input type='file' name='file'/><input type='submit' value='上傳文件'/> </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>測試</title> </head><body> ${user.userName} </body> </html>
至此，完成Spring+SpingMVC+mybatis這三大框架整合完成。
3.4.7、部署項目
輸入地址：http://localhost/user/jsontype/2
項目下載地址：https://github.com/Javen205/SSM
參考博客：https://www.jb51.net/article/125921.htm
以上就是SSM框架整合之Spring+SpringMVC+MyBatis實踐步驟的詳細內容，更多關于SSM框架的資料請關注好吧啦網其它相關文章！
以上就是SSM框架整合之Spring+SpringMVC+MyBatis實踐步驟的詳細內容，更多關于SSM框架的資料請關注好吧啦網其它相關文章！
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