526互联

【Spring MVC】第一个程序

发布时间 2023-04-10 11:58:16作者: 小鼻涕孩

添加Maven依赖：

<!-- spring核心类 -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context</artifactId>
      <version>5.2.8.RELEASE</version>
    </dependency>
    <!-- spring MVC -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>5.2.8.RELEASE</version>
    </dependency>
    <!-- Servlet -->
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>javax.servlet-api</artifactId>
      <version>3.1.0</version>
      <scope>provided</scope>
    </dependency>

添加tomcat7插件到maven：

<!--构建-->
  <build>
    <plugins>
      <!-- 插件配置 -->
      <plugin>
        <groupId>org.apache.tomcat.maven</groupId>
        <artifactId>tomcat7-maven-plugin</artifactId>
        <configuration>
          <port>8080</port>
          <path>/springMVC</path>
        </configuration>
        <version>2.2</version>
      </plugin>
    </plugins>
  </build>

 

 FirstController.java

package com.xiaobiti.controller;

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

//设置当前类为处理器的类
@Controller
public class FirstController {
    //设定当前方法的访问映射地址
    @RequestMapping("firstController")
    public String hello(){
        System.out.println("访问到了firstController");
        //设置跳转页面
        return "/success";
    }
}

 

 spring-mvc.xml

<?xml version="1.0" encoding="UTF-8"?>
<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.xsd
       http://www.springframework.org/schema/context
       http://www.springframework.org/schema/context/spring-context.xsd">
    <!-- 配置springMVC需要扫描的包 -->
    <context:component-scan base-package="com.xiaobiti.controller"/>
    <!-- 配置视图解析器 -->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="WEB-INF/pages"/>
        <property name="suffix" value=".jsp"/>
    </bean>
</beans>

 

 web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
         http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
         version="3.1">

  <servlet>
    <servlet-name>DispatcherServlet</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <!-- 配置初始化参数，读取Spring MVC的配置文件 --><init-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:spring-mvc.xml</param-value>
  </init-param>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>DispatcherServlet</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>
</web-app>

success.jsp

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
Hello SpringMVC
</body>
</html>

index.jsp

<html>
<body>
<h2>Hello World!</h2>
 <a href="firstController">Link</a>
</body>
</html>

 点击Link后访问firstController，返回跳转页面success.jsp