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SSM框架的简单搭建

發布時間：2025/4/16 编程问答 28 豆豆

生活随笔收集整理的這篇文章主要介紹了 SSM框架的简单搭建小編覺得挺不錯的,現在分享給大家,幫大家做個參考.

轉：https://blog.csdn.net/zhshulin/article/details/37956105

Spring+SpringMVC+MyBatis

spring　　? ? ? ：　4.3.13.RELEASE

springMVC? ? ?：? ?4.3.13.RELEASE

mybatis　? ? ? ?：??3.2.6

開發工具? ? ? ? ：? ?IDEA

jar包管理工具：? ?maven

首先先通過IDEA快速構建一個maven web項目，.....

先通過maven把相關的jar引入到項目中

<properties><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding><maven.compiler.source>1.7</maven.compiler.source><maven.compiler.target>1.7</maven.compiler.target><spring.version>4.3.13.RELEASE</spring.version><mybatis.version>3.2.6</mybatis.version><slf4j.version>1.7.7</slf4j.version><log4j.version>1.2.17</log4j.version></properties><dependencies><dependency><groupId>junit</groupId><artifactId>junit</artifactId><version>4.12</version><scope>test</scope></dependency><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>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-aspects</artifactId><version>${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><dependency><groupId>org.mybatis</groupId><artifactId>mybatis</artifactId><version>${mybatis.version}</version></dependency><dependency><groupId>org.mybatis</groupId><artifactId>mybatis-spring</artifactId><version>1.2.2</version></dependency><dependency><groupId>javax</groupId><artifactId>javaee-api</artifactId><version>7.0</version></dependency><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>5.1.8</version></dependency><dependency><groupId>commons-dbcp</groupId><artifactId>commons-dbcp</artifactId><version>1.2.2</version></dependency><dependency><groupId>jstl</groupId><artifactId>jstl</artifactId><version>1.2</version></dependency><dependency><groupId>log4j</groupId><artifactId>log4j</artifactId><version>${log4j.version}</version></dependency><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><dependency><groupId>org.codehaus.jackson</groupId><artifactId>jackson-mapper-asl</artifactId><version>1.9.13</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>2.4</version></dependency><dependency><groupId>commons-codec</groupId><artifactId>commons-codec</artifactId><version>1.9</version></dependency><dependency><groupId>org.mybatis.generator</groupId><artifactId>mybatis-generator-core</artifactId><version>1.3.2</version></dependency><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-core</artifactId><version>2.8.5</version></dependency><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-databind</artifactId><version>2.8.5</version></dependency><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-annotations</artifactId><version>2.8.5</version></dependency></dependencies>

項目目錄結構：

?創建一個jdbc.properties

driver=com.mysql.jdbc.Driver url=jdbc:mysql://localhost:3306/db_zsl?useUnicode=true&characterEncoding=utf-8&zeroDateTimeBehavior=convertToNull username=root password=123456 #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

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。

<?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:tx="http://www.springframework.org/schema/tx"xmlns:aop="http://www.springframework.org/schema/aop"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/txhttp://www.springframework.org/schema/tx/spring-tx.xsdhttp://www.springframework.org/schema/aophttp://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"default-lazy-init="false"><context:component-scan base-package="com.lyl" /><bean id="propertyConfigurer"class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"><property name="location" value="classpath:jdbc.properties" /></bean><bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"destroy-method="close"><property name="driverClassName" value="${driver}" /><property name="url" value="${url}" /><property name="username" value="${username}" /><property name="password" value="${password}" /><property name="initialSize" value="${initialSize}"></property><property name="maxActive" value="${maxActive}"></property><property name="maxIdle" value="${maxIdle}"></property><property name="minIdle" value="${minIdle}"></property><property name="maxWait" value="${maxWait}"></property></bean><bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"><property name="dataSource" ref="dataSource" /><property name="mapperLocations" value="classpath:com/lyl/mapping/*.xml"></property></bean><bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"><property name="basePackage" value="com.lyl.dao" /><property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property></bean><bean id="transactionManager"class="org.springframework.jdbc.datasource.DataSourceTransactionManager"><property name="dataSource" ref="dataSource" /></bean><tx:annotation-driven/><tx:advice id="txAdvice" transaction-manager="transactionManager"><tx:attributes><tx:method name="insert*" propagation="REQUIRED"/><tx:method name="update*" propagation="REQUIRED"/><tx:method name="delete*" propagation="REQUIRED"/><tx:method name="create*" propagation="REQUIRED"/><tx:method name="change*" propagation="REQUIRED"/><tx:method name="give*" propagation="REQUIRED"/><tx:method name="save*" propagation="REQUIRED"/><tx:method name="cancel*" propagation="REQUIRED"/><tx:method name="do*" propagation="REQUIRED"/><tx:method name="*" read-only="true"/></tx:attributes></tx:advice><aop:config proxy-target-class="true"><aop:pointcut id="serviceMethods" expression="execution(* com.lyl.service.*.*(..))"/><aop:advisor pointcut-ref="serviceMethods" advice-ref="txAdvice"/></aop:config></beans>

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、UNIX?Syslog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.properties

#定義LOG輸出級別 log4j.rootLogger=DEBUG,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

JUnit測試

?經過以上步驟（log4j不配也沒影響），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。

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：

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=2 DEFAULT CHARSET=utf8;/*Data for the table `user_t` */insert into `user_t`(`id`,`user_name`,`password`,`age`) values (1,'測試','sfasgfaf',24);

利用MyBatis Generator自動創建代碼

先創建genreatorConfig.xml

<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE generatorConfigurationPUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN""http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd"><generatorConfiguration><context id="testTables" targetRuntime="MyBatis3"><commentGenerator><property name="suppressAllComments" value="true" /></commentGenerator><jdbcConnection driverClass="com.mysql.jdbc.Driver"connectionURL="jdbc:mysql://localhost:3306/db_zsl" userId="root"password="123456"></jdbcConnection><javaTypeResolver><property name="forceBigDecimals" value="false" /></javaTypeResolver><javaModelGenerator targetPackage="com.lyl.entity"targetProject=".\src"><property name="enableSubPackages" value="false" /><property name="trimStrings" value="true" /></javaModelGenerator><sqlMapGenerator targetPackage="com.lyl.dao"targetProject=".\src"><property name="enableSubPackages" value="false" /></sqlMapGenerator><javaClientGenerator type="XMLMAPPER"targetPackage="com.lyl.mapper"targetProject=".\src"><property name="enableSubPackages" value="false" /></javaClientGenerator><table tableName="user_t" enableCountByExample="false"enableUpdateByExample="false"enableDeleteByExample="false"enableSelectByExample="false"selectByExampleQueryId="false"></table></context> </generatorConfiguration>

再創建一個java類

import org.mybatis.generator.api.MyBatisGenerator; import org.mybatis.generator.config.Configuration; import org.mybatis.generator.config.xml.ConfigurationParser; import org.mybatis.generator.internal.DefaultShellCallback;import java.io.File; import java.util.ArrayList; import java.util.List;/*** @Auther: long* @Date: 2018/5/14 17:37* @Description:*/ public class GeneratorSqlmap {public void generator() throws Exception{List<String> warnings = new ArrayList<String>();boolean overwrite = true;//指定逆向工程配置文件File configFile = new File(this.getClass().getResource("genreatorConfig.xml").getPath());ConfigurationParser cp = new ConfigurationParser(warnings);Configuration config = cp.parseConfiguration(configFile);DefaultShellCallback callback = new DefaultShellCallback(overwrite);MyBatisGenerator myBatisGenerator = new MyBatisGenerator(config,callback, warnings);myBatisGenerator.generate(null);}public static void main(String[] args) throws Exception {try {GeneratorSqlmap generatorSqlmap = new GeneratorSqlmap();generatorSqlmap.generator();} catch (Exception e) {e.printStackTrace();}}}

　　運行一下main方法就能生成對應的實體和xml，dao層代碼，在把相應的文件放到對應的目錄下即可

建立Service接口和實現類

下面給出具體的內容：

IUserService.jave

package com.lyl.service;import com.lyl.entity.UserT;/*** @Auther: long* @Date: 2018/5/15 09:48* @Description:*/ public interface IUserservice {public UserT getUserById(int userId);public int insertUser(UserT userT); }

　　UserServiceImpl.java

package com.lyl.service.impl;import com.lyl.dao.UserTMapper; import com.lyl.entity.UserT; import com.lyl.service.IUserservice; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service;/*** @Auther: long* @Date: 2018/5/15 09:50* @Description:*/ @Service("userService") public class UserServiceImpl implements IUserservice {@Autowiredprivate UserTMapper userDao;@Overridepublic UserT getUserById(int userId) {return this.userDao.selectByPrimaryKey(userId);}@Overridepublic int insertUser(UserT userT) {return userDao.insert(userT);} }

建立測試類

??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.lyl.service.impl;import com.alibaba.fastjson.JSON; import com.lyl.entity.UserT; import com.lyl.service.IUserservice; import org.apache.log4j.Logger; import org.junit.Test; import org.junit.runner.RunWith; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.test.context.ContextConfiguration; import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;/*** @Auther: long* @Date: 2018/5/16 08:32* @Description:*/ @RunWith(SpringJUnit4ClassRunner.class) @ContextConfiguration(locations = {"classpath:spring-mybatis.xml"}) public class UserServiceImplTest {private static Logger logger = Logger.getLogger(UserServiceImplTest.class);@Autowiredprivate IUserservice userService;@Testpublic void getUserById() {UserT user = userService.getUserById(1);logger.info(JSON.toJSONString(user));}}

　　測試結果

至此，完成Spring和mybatis這兩大框架的整合，下面在繼續進行SpringMVC的整合。

整合SpringMVC

上面已經完成了2大框架的整合，SpringMVC的配置文件單獨放，然后在web.xml中配置整合。

配置spring-mvc.xml

配置里面的注釋也很詳細，在此就不說了，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: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/mvchttp://www.springframework.org/schema/mvc/spring-mvc.xsd"><mvc:annotation-driven /><context:component-scan base-package="com.lyl" use-default-filters="false"><context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/></context:component-scan><bean id="mappingJacksonHttpMessageConverter"class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"><property name="supportedMediaTypes"><list><value>text/html;charset=UTF-8</value></list></property></bean><beanclass="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter"><property name="messageConverters"><list><ref bean="mappingJacksonHttpMessageConverter" /> </list></property></bean><bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"><property name="prefix" value="/WEB-INF/jsp/" /><property name="suffix" value=".jsp" /></bean><bean id="multipartResolver"class="org.springframework.web.multipart.commons.CommonsMultipartResolver"><property name="defaultEncoding" value="utf-8" /><property name="maxUploadSize" value="10485760000" /><property name="maxInMemorySize" value="40960" /></bean></beans>

配置一個spring-context.xml，把Controller注解的掃描和其他注解分離開來，然后引入其他的配置文件

配置web.xml文件

這里面對spring-context.xml的引入以及配置的spring-mvc的Servlet就是為了完成SSM整合，之前2框架整合不需要在此處進行任何配置。配置一樣有詳細注釋，不多解釋了。

<?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><context-param><param-name>contextConfigLocation</param-name><param-value>classpath:spring-context.xml</param-value></context-param><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><listener><listener-class>org.springframework.web.context.ContextLoaderListener</listener-class></listener><listener><listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class></listener><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><url-pattern>/</url-pattern></servlet-mapping><welcome-file-list><welcome-file>/index.jsp</welcome-file></welcome-file-list></web-app>

測試

至此已經完成了SSM三大框架的整合了，接下來測試一下，如果成功了，那么恭喜你，如果失敗了，繼續調試吧，作為程序員就是不停的與BUG做斗爭！

新建jsp頁面

showUser.jsp?? 此頁面僅輸出一下用戶名，完成一個完整的簡單流程。

<%@ 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>

建立UserController類

UserController.java??控制器

package com.lyl.controller;import com.lyl.entity.UserT; import com.lyl.service.IUserservice; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.RequestMapping; import javax.servlet.http.HttpServletRequest;/*** @Auther: long* @Date: 2018/5/15 11:36* @Description:*/ @Controller @RequestMapping("/user") public class UserController {@Autowiredprivate IUserservice userservice;@GetMapping("/showUser")public String toIndex(HttpServletRequest request, Model model) {int userId = Integer.parseInt(request.getParameter("userId"));UserT user = userservice.getUserById(userId);model.addAttribute("user",user);return "showUser";} }

部署項目

輸入地址：localhost:8080/user/showUser?id=1

至此，SSM三大框架的整合就完成了，在此基礎上可再添加其他功能。

遇到的問題：

問題一：

在把spring相關jar包從 4.0.2?RELEASE升級到4.3.13.RELEASE出了好多問題

<bean id="mappingJacksonHttpMessageConverter"class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"><property name="supportedMediaTypes"><list><value>text/html;charset=UTF-8</value></list></property></bean>

一直報找不到MappingJackson2HttpMessageConverter這個錯誤

原來是少了三個jar包

<dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-core</artifactId><version>2.8.5</version></dependency><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-databind</artifactId><version>2.8.5</version></dependency><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-annotations</artifactId><version>2.8.5</version></dependency>

問題二：

還有一個就是掃描問題，升級了一下版本自動掃描注解也出了點問題，后面加了幾個掃描進去就好了

spring-mvc.xml

<mvc:annotation-driven /><context:component-scan base-package="com.lyl" use-default-filters="false"><context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/></context:component-scan>

spring-context.xml

<context:component-scan base-package="com.lyl"><context:exclude-filter expression="org.springframework.stereotype.Controller" type="annotation"/></context:component-scan>

這樣后面啟動就沒有問題了

問題三：

后面測試的時候利用junit測試的時候一直報錯

可能是版本不兼容的原因，剛開始用的版本是4.11，后面換成了4.12就沒有問題了

問題四：

后面在測試添加用戶的時候，也報錯說好像是只讀，不能修改的問題，后面網上找了一下，有的說修改數據庫權限，

有的說是數據庫的驅動的版本的問題，這里我使用的解決辦法是更換了下數據庫驅動的版本，換一個版本進行測試就不會有這個問題了，

開始使用的數據庫驅動的版本：

<dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.30</version> </dependency>

現在的版本：

<dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>5.1.8</version></dependency>

轉載于:https://www.cnblogs.com/liaoyanglong/p/9045083.html

總結

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