框架篇:Spring+SpringMVC+Mybatis整合开发

前言:

  前面我已搭建过ssh框架(http://www.cnblogs.com/xrog/p/6359706.html)。

  然而mybatis表示不服啊。 Hibernate:“不服便战!”

  我们先看下对战双方阵势:

                Hiberate    VS  Mybatis

   第一回合:开发速度

      刷图难度:Hibernate前期升级需要大量经验,所以你想玩转Hibernate,得多打打小怪,看看攻略什么的.

           Mybatis相对简单许多,只要MySQL这件装备强化上去,刷怪轻轻松松

      刷图效率:Mybatis需要我们手动写sql语句,回归最原始的方式,所以可以按需求制定查询的字段,

              提高效率,由于是自己编写sql语句,所以查询的灵活度也比hibernate高。

           Hibernate的查询会将表中的所有字段查询出来,这一点性能消耗比Mybatis大。当然,

              Hibernate也可以自己写SQL来指定需要查询的字段,但这样就破坏了Hibernate封装

              以及开发的简洁性。

   第二回合:数据库移植性

      Mybatis由于所有SQL都是依赖数据库书写的,所以扩展性,迁移性比较差。

      Hibernate与数据库具体的关联都在XML中,所以HQL对具体是用什么数据库并不是很关心。

   第三回合:缓存机制对比

      相同点:Hibernate和Mybatis的二级缓存除了采用系统默认的缓存机制外,都可以通过实现你自己的缓存或为

          其他第三方缓存方案,创建适配器来完全覆盖缓存行为。

      不同点:Hibernate的二级缓存配置在SessionFactory生成的配置文件中进行详细配置,

            然后再在具体的表-对象映射中配置是那种缓存。

          MyBatis的二级缓存配置都是在每个具体的表-对象映射中进行详细配置,这样针对不同的表可以自定义

            不同的缓存机制。并且Mybatis可以在命名空间*享相同的缓存配置和实例,通过Cache-ref来实现。  

      两者比较:因为Hibernate对查询对象有着良好的管理机制,用户无需关心SQL。所以在使用二级缓存时如果出现脏数据,

           系统会报出错误并提示。而MyBatis在这一方面,使用二级缓存时需要特别小心。如果不能完全确定数据更新

           操作的波及范围,避免Cache的盲目使用。否则,脏数据的出现会给系统的正常运行带来很大的隐患。

    总结:    

      Mybatis:小巧、方便、高效、简单、直接、半自动化

      Hibernate:强大、方便、高效、复杂、间接、全自动化

好了,没时间解释了,快上车

导包

还是老套路,就不多说了,配置pom.xml:

<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>XRom</groupId>
<artifactId>ssm</artifactId>
<packaging>war</packaging>
<version>1.0-SNAPSHOT</version>
<name>ssm Maven Webapp</name>
<url>http://maven.apache.org</url> <!--此处统一配置版本信息-->
<properties>
<!-- spring版本 -->
<springVersion>4.3.1.RELEASE</springVersion>
<!-- mybatis版本 -->
<mybatis.version>3.2.6</mybatis.version>
<!--<mysqlVersion>6.0.3</mysqlVersion>-->
<mysqlVersion>5.1.38</mysqlVersion> <lombokVersion>1.16.10</lombokVersion>
<log4jVersion>1.2.17</log4jVersion>
<slf4jVersion>1.7.7</slf4jVersion>
<fileuploadVersion>1.3.1</fileuploadVersion>
<jstlVersion>1.2</jstlVersion>
<!--<taglibVersion>1.1.2</taglibVersion>-->
<!--<servletVersion>3.0-alpha-1</servletVersion>-->
</properties> <dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency> <!-- spring-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${springVersion}</version>
</dependency> <dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${springVersion}</version>
</dependency> <dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${springVersion}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>${springVersion}</version>
</dependency> <!-- spring web + spring MVC-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${springVersion}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${springVersion}</version>
</dependency> <!-- mybatis核心包 -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>${mybatis.version}</version>
</dependency>
<!-- mybatis + spring -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.2.2</version>
</dependency> <!-- DataBase数据库连接 mysql包-->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>${mysqlVersion}</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> <!-- log4j配置, 视情况添加-->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>${log4jVersion}</version>
</dependency>
<!--<dependency>-->
<!--<groupId>com.alibaba</groupId>-->
<!--<artifactId>fastjson</artifactId>-->
<!--<version>1.1.41</version>-->
<!--</dependency>-->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${slf4jVersion}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>${slf4jVersion}</version>
</dependency> <!--文件上传包-->
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>${fileuploadVersion}</version>
</dependency> <!-- jsp页面使用的jstl支持-->
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>${jstlVersion}</version>
</dependency> <!-- lombok插件导包-->
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>${lombokVersion}</version>
<scope>provided</scope>
</dependency>
</dependencies> <build>
<finalName>ssm</finalName> <plugins>
<!--java8-->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin> <!-- mybatis-generator-maven-plugin-->
<plugin>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-maven-plugin</artifactId>
<version>1.3.2</version>
<configuration>
<verbose>true</verbose>
<overwrite>true</overwrite>
</configuration>
</plugin> </plugins>
</build>
</project>

  

OK,配置后运行下maven,就会自动向*仓库下载相应的包啦!另外我这里结尾多配置了两个插件,一个是Java8新特性的,一个是Mybatis Generator的,这两个插件暂时可以不配置

SpringMVC配置

我现在在这里把我配置后的结构拿出来给你们看下,最终的结构就是这样了,当然,部分配置如log4j,generator这些本文章并没用使用到

框架篇:Spring+SpringMVC+Mybatis整合开发

我们先配置下SpringMVC的配置:resources/META-INF/spring-mvc.xml

 ps:这个和上篇博客配置是一样的

<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-4.1.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.1.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd"> <!-- 启动注解驱动的spring MVC功能,注册请求url和注解POJO类方法的映射-->
<mvc:annotation-driven />
<!-- 对模型视图名称的解析,在请求时模型视图名称添加前后缀 -->
<context:component-scan base-package="com.ssm" /> <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="viewClass" value="org.springframework.web.servlet.view.JstlView" />
<property name="prefix" value="views/" /> <!-- 前缀 -->
<property name="suffix" value=".jsp" /> <!-- 后缀 -->
</bean> <!--这里是对静态资源的映射-->
<mvc:resources mapping="/js/**" location="/resources/js/" />
<mvc:resources mapping="/css/**" location="/resources/css/" />
<mvc:resources mapping="/img/**" location="/resources/img/" /> </beans>

好了,我们现在修改下web.xml这个配置文件,完善下SpringMVC的配置, web.xml配置如下:

<?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">
<!-- 地址为http://localhost:8080/ 显示的默认网页-->
<welcome-file-list>
<welcome-file>/index.jsp</welcome-file>
</welcome-file-list> <!-- spring MVC config start-->
<servlet>
<servlet-name>spring</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<!-- 此处指向的的是SpringMVC的配置文件 -->
<param-value>classpath:META-INF/spring-mvc.xml</param-value>
</init-param>
<!--配置容器在启动的时候就加载这个servlet并实例化-->
<load-on-startup>1</load-on-startup>
</servlet> <servlet-mapping>
<servlet-name>spring</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<!-- spring MVC config end--> </web-app>

OK,SpringMVC配置完成,现在我们进行一下测试吧

在controller层新建一个MainController,内容如下

package com.ssm.controller;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod; /**
* Created by XRog
* On 2/1/2017.12:36 AM
*/
@Controller
public class MainController { @RequestMapping(value = "test", method = RequestMethod.GET)
public String test(){
// 实际返回的是views/test.jsp ,spring-mvc.xml中配置过前后缀
return "test";
}
}

test.jsp网页如下:

<html>
<body>
<center>
<h2 style="color: #ff261a;">this is my test page!</h2>
</center>
</body>
</html>

重启Tomcat服务器, 然后浏览器访问http://localhost/test如下图所示:

框架篇:Spring+SpringMVC+Mybatis整合开发

PS: Tomcat默认端口是8080,我更改了端口号,如若你们未更改,正确的访问地址是localhost:8080/test

OK,成功访问。

SpringMVC+Spring整合

这个就十分简单了, 配置spring-mybatis.xml这个Spring的配置文件如下(后面的mybatis配置我也将写在这里):

<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.ssm">
<!-- 扫描时跳过 @Controller 注解的JAVA类(控制器) -->
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan> </beans>

完善web.xml配置文件如下:

<?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">
<!-- 地址为http://localhost:8080/ 显示的默认网页-->
<welcome-file-list>
<welcome-file>/index.jsp</welcome-file>
</welcome-file-list> <!--加载Spring的配置文件到上下文中去-->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
classpath:META-INF/spring-mybatis.xml
</param-value>
</context-param> <!-- spring MVC config start-->
<servlet>
<servlet-name>spring</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<!-- 此处指向的的是SpringMVC的配置文件 -->
<param-value>classpath:META-INF/spring-mvc.xml</param-value>
</init-param>
<!--配置容器在启动的时候就加载这个servlet并实例化-->
<load-on-startup>1</load-on-startup>
</servlet> <servlet-mapping>
<servlet-name>spring</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<!-- spring MVC config end--> <!-- Spring监听器 -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener> <!-- 字符集过滤 -->
<filter>
<filter-name>encodingFilter</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>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping> </web-app>

web.xml配置文件中更改了三处:引入Spring-mybaits配置文件 Spring的监听器  以及 字符集过滤

OK,Spring+SpringMVC配置完成,下面我们开始测试:

在service写一个TestServiceImpl实现TestService接口并实现其test()方法, 代码如下:

package com.ssm.service.impl;

import com.ssm.service.TestService;
import org.springframework.stereotype.Service; /**
* Created by XRog
* On 2/1/2017.12:58 AM
*/
@Service
public class TestServiceImpl implements TestService {
public String test() {
return "test";
}
}

PS:这里注意写@Service注解

MainController控制器更改如下:

package com.ssm.controller;

import com.ssm.service.TestService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody; /**
* Created by XRog
* On 2/1/2017.12:36 AM
*/
@Controller
public class MainController { @Autowired
private TestService testService; @RequestMapping(value = "test", method = RequestMethod.GET)
public String test(){
// 实际返回的是views/test.jsp ,spring-mvc.xml中配置过前后缀
return "test";
} @RequestMapping(value = "springtest", method = RequestMethod.GET)
public String springTest(){
return testService.test();
}
}

控制器这里我们运用了Spring的依赖注入自动装配。

在浏览器中输入地址http://localhost/springtest调用springtest方法

框架篇:Spring+SpringMVC+Mybatis整合开发

yes,成功返回,说明我们之前的配置没问题

Spring+SpringMVC+Mybatis整合

好了,现在就缺Mybatis这个框架了。。 我先给大家看些我搭建好之后的结构图吧

框架篇:Spring+SpringMVC+Mybatis整合开发

框架篇:Spring+SpringMVC+Mybatis整合开发

我们先来编写jdbc.properties这个配置文件,里面存放的是mybatis的一些配置

#这个是Mybatis Generator逆向工程要用到的,现在可以不配置
jdbc.driverLocation=C:\\Users\\XRog\\.m2\\repository\\mysql\\mysql-connector-java\\5.1.38\\mysql-connector-java-5.1.38.jar #数据源
jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://zxr1998.com.cn:3306/ssm
jdbc.username=???
jdbc.password=??? #初始化连接池连接数
initialSize=0 #连接池最大连接数
maxActive=20 #连接池最大空闲
maxIdle=20 #连接池最小空闲
minIdle=1 #最大等待时间
maxWait=60000

这里连接数据库的参数由于我是连接我网上的数据库,因此我数据库地址和密码打了“???”,你们连接时改成自己本地的就OK了

<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.ssm">
<!-- 扫描时跳过 @Controller 注解的JAVA类(控制器) -->
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan> <!-- 加载配置文件 -->
<context:property-placeholder location="classpath:/jdbc.properties" /> <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="${jdbc.driver}" />
<property name="url" value="${jdbc.url}" />
<property name="username" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />
<property name="initialSize" value="${initialSize}" /> <!--初始化连接池连接数-->
<property name="maxActive" value="${maxActive}" /> <!--连接池最大连接数-->
<property name="maxIdle" value="${maxIdle}" /> <!--连接池最大空闲-->
<property name="minIdle" value="${minIdle}" /> <!--连接池最小空闲-->
<property name="maxWait" value="${maxWait}" /> <!--连接最大等待时间-->
</bean> <bean id="sqlSessionFaction" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<!-- 自动扫描mapping.xml文件 -->
<property name="mapperLocations" value="classpath:/mapping/*.xml" />
</bean> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.ssm.mapping" />
<property name="sqlSessionFactoryBeanName" value="sqlSessionFaction" />
</bean> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource" />
</bean> </beans>

OK,到了这里,配置结束。下面进入测试阶段

实体类(domain):

package com.ssm.domain;

public class Person {
private Long id; private String username; private String password; public Long getId() {
return id;
} public void setId(Long 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();
}
}

mapping(我这里使用generator生成的,粘贴的时候我去掉了很多注释,莫介意):

package com.ssm.mapping;

import com.ssm.domain.Person;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.ResultMap;
import org.apache.ibatis.annotations.Select;
import org.apache.ibatis.annotations.SelectKey;
import org.apache.ibatis.annotations.Update; public interface PersonMapper {
int deleteByPrimaryKey(Long id); int insert(Person record); int insertSelective(Person record); Person selectByPrimaryKey(Long id); int updateByPrimaryKeySelective(Person record); int updateByPrimaryKey(Person record);
}
<?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.ssm.mapping.PersonMapper">
<resultMap id="BaseResultMap" type="com.ssm.domain.Person">
<!--
WARNING - @mbggenerated
This element is automatically generated by MyBatis Generator, do not modify.
-->
<id column="id" jdbcType="BIGINT" property="id" />
<result column="username" jdbcType="VARCHAR" property="username" />
<result column="password" jdbcType="VARCHAR" property="password" />
</resultMap>
<sql id="Base_Column_List">
<!--
WARNING - @mbggenerated
This element is automatically generated by MyBatis Generator, do not modify.
-->
id, username, password
</sql>
<insert id="insertSelective" parameterType="com.ssm.domain.Person">
<!--
WARNING - @mbggenerated
This element is automatically generated by MyBatis Generator, do not modify.
-->
<selectKey keyProperty="id" order="AFTER" resultType="java.lang.Long">
SELECT LAST_INSERT_ID()
</selectKey>
insert into person
<trim prefix="(" suffix=")" suffixOverrides=",">
<if test="username != null">
username,
</if>
<if test="password != null">
password,
</if>
</trim>
<trim prefix="values (" suffix=")" suffixOverrides=",">
<if test="username != null">
#{username,jdbcType=VARCHAR},
</if>
<if test="password != null">
#{password,jdbcType=VARCHAR},
</if>
</trim>
</insert>
<update id="updateByPrimaryKeySelective" parameterType="com.ssm.domain.Person">
<!--
WARNING - @mbggenerated
This element is automatically generated by MyBatis Generator, do not modify.
-->
update person
<set>
<if test="username != null">
username = #{username,jdbcType=VARCHAR},
</if>
<if test="password != null">
password = #{password,jdbcType=VARCHAR},
</if>
</set>
where id = #{id,jdbcType=BIGINT}
</update>
</mapper>

服务层(service):

package com.ssm.service;

import com.ssm.domain.Person;

/**
* Created by XRog
* on 5/27/2017.
*/
public interface PersonService { int insert(Person person);
}
package com.ssm.service.impl;

import com.ssm.domain.Person;
import com.ssm.mapping.PersonMapper;
import com.ssm.service.PersonService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service; /**
* Created by XRog
* on 5/27/2017.
*/
@Service
public class PersonServiceImpl implements PersonService { @Autowired
private PersonMapper personMapper; @Override
public int insert(Person person) {
return personMapper.insertSelective(person);
}
}

控制层(controller):

package com.ssm.controller;

import com.ssm.domain.Person;
import com.ssm.service.PersonService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
/**
* Created by XRog
* on 5/24/2017.
*/
@Controller
@RequestMapping("/test")
public class TestController { @Autowired
private PersonService personService; @RequestMapping(value = "mybatis")
public @ResponseBody String mybatis(){
Person person = new Person();
person.setUsername("test2");
person.setPassword("123");
personService.insert(person);
return "success";
}
}

OK,编写完毕,我们重启下服务器然后测试:输入地址  localhost/test/mybatis  ,如果不出意外的话将返回success,这说明访问成功

另外,这个ssm项目我已上传到码云,公开了共享,下面是地址.这篇博客很多地方(spring+springmvc )都是借用的上篇博客的,请以下面共享的项目地址为准

https:  https://git.oschina.net/zxr_a/ssm.git

ssh:   git@git.oschina.net:zxr_a/ssm.git

好了,到这里就结束了,祝大家别出BUG。

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