Spring+SpringMVC+MyBatis详细整合过程
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想要重新学习一下spring+mybatis，这次通过一个项目重新搭建了一次，这个过程中遇到的问题和解决方法顺便记录下。思路：学会搭建整个框架，把框架用起来，然后学习。
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Rod Johnson 在其著作Expert One-On-One J2EE Development and Design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
Spring MVC属于SpringFrameWork的后续产品，已经融合在Spring Web Flow里面。Spring MVC 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apache software foundation 迁移到了google code，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SQL Maps和Data Access Objects（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（Plain Old Java Objects，普通的 Java对象）映射成数据库中的记录。
2.环境依赖
本项目的开发基于maven，tomcat，mysql，IDEA，JDK（6-8都行）等，因此想要在如下的代码中，整个项目最终顺利的跑起来需要事先准备以上环境，至于环境的配置，可以看其他的博客。
tomcat 7.0IntelliJ IDEA 14.1.4mysql 5.6maven 3.1.03.SSM整合
1) 编写pom.xml 文件 引入所需要的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.hotel</groupId> <artifactId>back-hotel</artifactId> <packaging>war</packaging> <version>1.0-SNAPSHOT</version> <name>back-hotel</name> <properties> <spring.version>4.1.1.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> <!-- spring 框架jar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>javax.servlet</groupId> <artifactId>servlet-api</artifactId> <version>2.5</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>javax.servlet.jsp</groupId> <artifactId>jsp-api</artifactId> <version>2.1</version> <scope>provided</scope> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>${spring.version}</version> <scope>test</scope> </dependency> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.11</version> <scope>test</scope> </dependency> <!-- mybatis核心包 --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>${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>5.1.30</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> <dependency> <groupId>commons-lang</groupId> <artifactId>commons-lang</artifactId> <version>2.6</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-core</artifactId> <version>2.1.0</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>2.1.0</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-annotations</artifactId> <version>2.1.0</version> </dependency> </dependencies> <build> <finalName>back-hotel</finalName> <plugins> <plugin> <artifactId>maven-compiler-plugin</artifactId> <configuration> <source>1.6</source> <target>1.6</target> </configuration> </plugin> <plugin> <artifactId>maven-surefire-plugin</artifactId> <configuration> <includes> <include>**/*Tests.java</include> </includes> </configuration> </plugin> </plugins> </build></project>2) 基础数据准备
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 DEFAULT CHARSET=utf8; /*Data for the table `user_t` */ INSERT INTO `user_t`(`id`,`user_name`,`password`,`age`) VALUES (1,'测试','sfasgfaf',24);3) 项目结构（整体+细节）
整体目录结构如下：
3.1 maven项目结构说明
src -main –bin 脚本库 –java java源代码文件 –resources 资源库，会自动复制到classes目录里 –filters 资源过滤文件 –assembly 组件的描述配置（如何打包） –config 配置文件 –webapp web应用的目录。WEB-INF、css、js等 -test –java 单元测试java源代码文件 –resources 测试需要用的资源库 –filters 测试资源过滤库 -site Site（一些文档）target工程根目录下就只有src和target两个目录target是有存放项目构建后的文件和目录，jar包、war包、编译的class文件等。target这个文件夹包括内容都是maven构建的时候生成的3.2 项目配置细节
3.2.1 配置文件说明
1)jdbc.properties
driver=com.mysql.jdbc.Driverurl=jdbc:mysql://127.0.0.1:3306/userusername=rootpassword=123#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数据库的基础配置
2）log4j.properties
#定义LOG输出级别log4j.rootLogger=debug,Console,File#定义日志输出目的地为控制台log4j.appender.Console=org.apache.log4j.ConsoleAppenderlog4j.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.PatternLayoutlog4j.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 = ALLlog4j.appender.File.layout = org.apache.log4j.PatternLayoutlog4j.appender.File.layout.ConversionPattern =[%p] [%d{yyyy-MM-dd HH\:mm\:ss}][%c]%m%n#设置输出日志文件编码（可以控制乱码情况）log4j.appender.File.encoding=UTF-83)spring-config.xml
<?xml version="1.0" encoding="UTF-8"?><beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:beans="http://www.springframework.org/schema/beans" xmlns:util="http://www.springframework.org/schema/util" xmlns:task="http://www.springframework.org/schema/task" xmlns:context="http://www.springframework.org/schema/context" xmlns="http://www.springframework.org/schema/beans" xsi:schemaLocation="http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.2.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd"> <!-- 组件扫描自动注入 --> <context:component-scan base-package="com.hotel.back"/> <!-- 导入dataSource配置文件--> <import resource="spring-datasource.xml"/></beans>4)spring-datasource.xml
mybatis与spring的结合配置如下：
<?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/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd"> <!-- 加载资源配置 --> <context:property-placeholder location="classpath:jdbc.properties" ignore-unresolvable="true"/> <!-- 自动扫描 --> <context:component-scan base-package="com.hotel.back" /> <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="${password}" /> <!-- 初始化连接大小 --> <property name="initialSize" value="${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 --> <!-- 创建SqlSessionFactory --> <bean id="sqlSessionFactory" name="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource" /> <property name="configLocation" value="classpath:mybatis-config.xml" /> </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.hotel.back.dao" /> <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property> </bean> <!-- (事务管理)transaction manager, use JtaTransactionManager for global tx --> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource" /> </bean></beans>5)mybatis-config.xml
mybatis基础信息配置
<?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><settings> <setting name="cacheEnabled" value="false"/> <setting name="mapUnderscoreToCamelCase" value="true"/> <setting name="useGeneratedKeys" value="true"/> <setting name="safeRowBoundsEnabled" value="false"/> <setting name="defaultExecutorType" value="REUSE"/> <setting name="defaultStatementTimeout" value="600"/> </settings> <typeAliases> <typeAlias alias="User" type="com.hotel.back.model.User"/> </typeAliases> <mappers> <mapper resource="mapping/user.xml"/> </mappers></configuration>3.3 java代码展示
1）基础java代码如下
model类：
User.java
/** Copyright (c) 2012 Qunar.com. All Rights Reserved.*/package com.hotel.back.model;import org.apache.commons.lang.builder.ToStringBuilder;import org.apache.commons.lang.builder.ToStringStyle;/** * @author lili.ai created on 2016 2016/9/27 14:49 * @version $Id$ */public class User { int id; String userName; String password; int age; public int getId() { return id; } public String getUserName() { return userName; } public void setUserName(String userName) { this.userName = userName; } public void setId(int id) { this.id = id; } public String getPassword() { return password; } public void setPassword(String password) { this.password = password; } public int getAge() { return age; } public void setAge(int age) { this.age = age; } @Override public String toString() { return ToStringBuilder.reflectionToString(this, ToStringStyle.SHORT_PREFIX_STYLE); }}dao类：
UserDao.java
package com.hotel.back.dao; /* * Copyright (c) 2012 Qunar.com. All Rights Reserved. */import com.hotel.back.model.User;import org.apache.ibatis.annotations.Param;public interface UserDao { public User selectUserById(@Param("id")int id);}service类：
UserService.java
package com.hotel.back.service; /* * Copyright (c) 2012 Qunar.com. All Rights Reserved. */import com.hotel.back.model.User;public interface UserService { public User selectUserById(int id);}UserServiceImpl.java
/** Copyright (c) 2012 Qunar.com. All Rights Reserved.*/package com.hotel.back.service;import com.hotel.back.dao.UserDao;import com.hotel.back.model.User;import org.springframework.stereotype.Service;import javax.annotation.Resource;/** * @author lili.ai created on 2016 2016/9/27 15:40 * @version $Id$ */@Servicepublic class UserServiceImpl implements UserService { @Resource UserDao userDao; @Override public User selectUserById(int id) { return userDao.selectUserById(id); }}controller类
UserController.java
/** Copyright (c) 2012 Qunar.com. All Rights Reserved.*/package com.hotel.back.Controller;import com.hotel.back.model.User;import com.hotel.back.service.UserService;import org.springframework.stereotype.Controller;import org.springframework.ui.Model;import org.springframework.web.bind.annotation.RequestMapping;import javax.annotation.Resource;import javax.servlet.http.HttpServletRequest;/** * @author lili.ai created on 2016 2016/9/27 17:17 * @version $Id$ */@Controller@RequestMapping("/user")public class UserController { @Resource private UserService userService; @RequestMapping("/showUser") public String toIndex(HttpServletRequest request,Model model){ int userId = Integer.parseInt(request.getParameter("id")); User user = userService.selectUserById(userId); model.addAttribute("user", user); return "hello"; }}3.4 配置mapping文件
如上述所示，sql准备好了，java对象也都OK了，接着就是发挥mybatis的魔力了，即数据库字段与java object的映射
在上述配置中没有提到resources->mapping->user.xml
文件如下：
user.xml
<?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.hotel.back.dao.UserDao"> <sql id="field"> id, user_name as userName, password as password, age as age </sql> <select id="selectUserById" resultType="User" > SELECT <include refid="field" /> FROM user_t <where> <if test="id!=null" > id=#{id} </if> </where> </select></mapper>**注意：在resources->mybatis-config.xml文件中将上述user.xml文件引入，达到具体的mapper映射的目的（具体见上述mybatis-config.xml）。
<mappers> <mapper resource="mapping/user.xml"/></mappers>4 spring+mybatis结合的测试
4.1
AppTests.java
package com.hotel.back;import com.hotel.back.model.User;import com.hotel.back.service.UserService;import org.junit.runner.RunWith;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.beans.BeansException;import org.springframework.beans.factory.BeanFactory;import org.springframework.beans.factory.BeanFactoryAware;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.context.ApplicationContext;import org.springframework.context.ApplicationContextAware;import org.springframework.test.context.ContextConfiguration;import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;import javax.annotation.Resource;import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;@ContextConfiguration(locations = {"classpath:spring-config.xml"})@RunWith(SpringJUnit4ClassRunner.class)public class AppTests { private static Logger logger = LoggerFactory.getLogger(AppTests.class); @Autowired UserService userService; @org.junit.Test public void testtest() { User user= userService.selectUserById(1); logger.info("用户：{}",user); }}写到这里运行代码，可看到控制台上输出如下：
[com.hotel.back.AppTests] - 用户：User[id=1,userName=测试,password=sfasgfaf,age=24]
即为成功！
5 spring+mybatis+spring mvc的结合
配置web文件，web目录结构如下： 
在本项目中，index.jsp为初始欢迎界面。
hello.jsp为用户查询界面
web.xml配置了spring-mvc的基础信息,加载顺序等
mvc-dispatcher-servlet.xml配置了url转发页面，转发配置等
具体代码如下：
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-config.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>/WEB-INF/mvc-dispatcher-servlet.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>mvc-dispatcher-servlet.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.hotel.back" /> <!--避免IE执行AJAX时，返回JSON出现下载文件 --> <bean id="mappingJacksonHttpMessageConverter" class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"> <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> <!-- 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/pages/" /> <property name="suffix" value=".jsp" /> </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 id="multipartResolver" 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" /> </bean></beans>欢迎界面index.jsp
<%-- Created by IntelliJ IDEA. User: lili.ai Date: 2016/9/27 Time: 17:10 To change this template use File | Settings | File Templates.--%><%@ page contentType="text/html;charset=UTF-8" language="java" %><html><head> <title></title></head><body><h1>hello world</h1></body></html>用户展示界面hello.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>由此所有的配置文件以及代码写完，配置tomcat，运行项目，结果如下：
启动tomcat，运行结果如下： 
说明tomcat运行正常，整个项目配置基本不存在问题。
访问具体的url，返回结果如下：
http://localhost:8080/user/showUser?id=1
看到这个结果说明spring+mybatis+springMVC结合成功
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- Spring+SpringMVC+MyBatis详细整合过程
- spring+mybatis+springMVC详细整合
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