SSM（SpringMVC+Spring+Mybatis）

一、搭建SpringMVC

　　1、在maven项目中导入spring-webmvc依赖

        <!-- springmvc -->
      <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-webmvc</artifactId>
          <version>5.1.8.RELEASE</version>
      </dependency>    

　　2、配置web.xml文件,在web.xml文件中添加如下代码

<servlet>
      <servlet-name>HelloWeb</servlet-name>
      <servlet-class>
         org.springframework.web.servlet.DispatcherServlet
      </servlet-class>
      <!-- 将springmvc核心配置文件位置修改到src/main/resources文件下 -->
      <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:springmvc.xml</param-value>
      </init-param>
      <load-on-startup>1</load-on-startup>
   </servlet>
   <servlet-mapping>
      <servlet-name>HelloWeb</servlet-name>
      <url-pattern>/</url-pattern>
   </servlet-mapping>

 　　3、配置springmvc核心配置文件，在src/main/resources文件下创建一个springmvc.xml文件

　　　　文件名必须与web.xml文件中的<param-value>classpath:springmvc.xml</param-value>名一致

<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="
   http://www.springframework.org/schema/beans     
   http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
   http://www.springframework.org/schema/context 
   http://www.springframework.org/schema/context/spring-context-3.0.xsd">

    <!--扫描com.blb.controller下的注解 -->
    <context:component-scan base-package="com.blb.controller" />

    <!-- 视图解析器 -->
    <bean
        class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/jsp/" />
        <property name="suffix" value=".jsp" />
    </bean>

</beans>

　　4、编写测试类

　　在src/main/java文件下创建com.blb.controller包，在包下创建一个TestController类

package com.blb.controller;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

@Controller
public class TestController {
    
    //向浏览器返回
    @ResponseBody
    //拦截地址
    @RequestMapping("hello")
    public String test(){
        return "hello world";
    }

}

　　5、maven配置tomcat和jdk

<build>
    <finalName>SSM_T</finalName>
    <plugins>  
        <!-- jdk配置 -->
        <plugin>  
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>  
            <version>3.1</version>  
            <configuration>  
                <source>1.8</source>  
                <target>1.8</target>  
            </configuration>  
        </plugin>
        
        <!-- 配置apache提供的tomcat插件 -->
        <plugin>
            <groupId>org.apache.tomcat.maven</groupId>
            <artifactId>tomcat7-maven-plugin</artifactId>
            <version>2.2</version>
        </plugin>
     </plugins>  
  </build>

　　6、测试,启动maven项目

　　　　访问localhost:8080/项目名/hello

　　　　页面出现hello world 表示springmvc搭建成功