SpringMVC简单案例
SrpingMVC简单案例
1. 导入依赖
<dependencies>
<!-- 单元测试 -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.10</version>
<scope>test</scope>
</dependency>
<!-- SpringMVC的jar包 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>4.1.3.RELEASE</version>
</dependency>
<!-- servlet 和 jsp的jar包 -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jsp-api</artifactId>
<version>2.0</version>
<scope>provided</scope>
</dependency>
<!-- java对象转换json的工具类
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.5.1</version>
</dependency>
-->
</dependencies>
2. 新建配置文件
在maven项目的resource目录下创建springmvc-config.xml配置文件
<?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:mvc="http://www.springframework.org/schema/mvc"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.0.xsd">
<!-- 1.配置前端控制器放行静态资源(html/css/js等，否则静态资源将无法访问) -->
<mvc:default-servlet-handler/>
<!-- 2.配置注解驱动，用于识别注解（比如@Controller） -->
<mvc:annotation-driven></mvc:annotation-driven>
<!-- 3.配置需要扫描的包：spring自动去扫描 base-package 下的类，
如果扫描到的类上有 @Controller、@Service、@Component等注解，
将会自动将类注册为bean
-->
<context:component-scan base-package="com.tedu.controller">
</context:component-scan>
<!-- 4.配置内部资源视图解析器
prefix:配置路径前缀
suffix:配置文件后缀
-->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/pages/"/>
<property name="suffix" value=".jsp"/>
</bean>
</beans>
3. 配置web.xml
<servlet>
<servlet-name>dispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- 配置springmvc核心配置文件的路径 -->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springmvc-config.xml</param-value>
</init-param>
<!-- 随着tomcat的启动而加载 -->
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcherServlet</servlet-name>
<!-- 拦截除了JSP以外的其他请求 -->
<url-pattern>/</url-pattern>
</servlet-mapping>
4. 建立JSP
在web目录下的WEB-INF/pages/下创建一个home.jsp, 在body中加入以下内容
<h1>
hello controller
</h1>
5. 创建controller
在com.test.controller下创建一个HelloController.java类
@Controller
public class HelloController {
@RequestMapping("/hello")
public String testHello() {
return "home";
}
}
6. 运行项目
启动服务器后再浏览器地址栏输入locahost:8080/应用名/hello
即可显示JSP页面的内容
