springMVC的使用
2.1 新建一个maven项目
2.2 导入jar包
<!-- Spring -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>4.3.18.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>4.3.18.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>4.3.18.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>4.3.18.RELEASE</version>
</dependency>
<!-- 配置日志信息-->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
<!-- 配置servlet-->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
<!--配置jsp的依赖 -->
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>2.2</version>
<scope>provided</scope>
</dependency>
<!-- 配置jstl -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>taglibs</groupId>
<artifactId>standard</artifactId>
<version>1.1.2</version>
</dependency>
<!-- 导入SpringMvc 需要的jar包 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>4.3.18.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>4.3.18.RELEASE</version>
</dependency>
2.3 创建一个springmvc.xml文件并配置
<?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"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd">
<!-- 1. 配置 需要扫描的控制层在哪个包 -->
<context:component-scan base-package="com.test.controller" ></context:component-scan>
<!-- 2 配置 视图解析器 中的 前缀和后缀 -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<!-- 设置前缀 -->
<property name="prefix" value="/WEB-INF/" />
<!-- 设置后缀 -->
<property name="suffix" value=".jsp" />
</bean>
</beans>
2.4 配置web.xml文件
<!DOCTYPE web-app PUBLIC
"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd" >
<web-app>
<display-name>Archetype Created Web Application</display-name>
<!-- 加入前端控制器 DispatcherServlet -->
<servlet>
<servlet-name>dispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- 设置 DispatcherServlet 的参数 -->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springmvc.xml</param-value>
</init-param>
<!-- 1 启动服务器的时候就加载 -->
<!-- 0 使用的时候再加载 -->
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcherServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
2.5 创建控制器类 和控制器中的方法
@Controller
@RequestMapping("/User")
public class UserController {
@RequestMapping("/reg")
public String reg(HttpServletRequest request)
{
System.out.println(request.getServerName());
System.out.println("注册..");
String id=request.getParameter("id");
System.out.println(id);
return "reg"; // return "WEB-INF/reg.jsp"
}
@RequestMapping("/login")
public String login(String name)
{
System.out.println(name);
return "login";
}
}
2.6 创建jsp 访问控制器中的方法
<a href="User/reg?id=1">注册</a><br/>
<a href="User/login?name=aa">登录</a><br/>