简易SpringMvc框架搭建

SpringMvc

1、新建Maven工程，设置pom.xml

工程命名为：SpringMvc，设置pom.xml如下：

<?xml version="1.0" encoding="UTF-8"?>
<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>SpringMvc</groupId>
  <artifactId>SpringMvc</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <packaging>war</packaging>
  <name>SpringMvcSimple Maven Webapp</name>
  <url>http://maven.apache.org</url>
  <dependencies>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>4.0.2.RELEASE</version>
        </dependency>
  </dependencies>
</project>

2、设置WEB-INF/web.xml

web.xml内容如下：

<?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" 
        xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" 
        xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" 
        version="3.0">
  <display-name>Archetype Created Web Application</display-name>
  <!-- spring MVC的核心就是DispatcherServlet，使用springMVC的第一步就是将下面的servlet放入web.xml
        servlet-name属性非常重要，默认情况下，DispatchServlet会加载这个名字-servlet.xml的文件，如下，就会加载
        dispather-servlet.xml，也是在WEN-INF目录下。
   -->
  <servlet>
    <servlet-name>dispatcher</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <!-- 设置dispatchservlet的匹配模式，通过把dispatchservlet映射到/，默认servlet会处理所有的请求，包括静态资源 -->
  <servlet-mapping>
    <servlet-name>dispatcher</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>
    <!-- 字符集过滤器 -->
    <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>

3、新增dispatcher-servlet.xml文件

在WEB-INF下新增dispatcher-servlet.xml文件，内容如下：

<?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:context="http://www.springframework.org/schema/context"
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    xmlns:p="http://www.springframework.org/schema/p"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
            http://www.springframework.org/schema/beans/spring-beans.xsd
            http://www.springframework.org/schema/mvc
            http://www.springframework.org/schema/mvc/spring-mvc.xsd
            http://www.springframework.org/schema/context
            http://www.springframework.org/schema/context/spring-context.xsd"
    default-lazy-init="true">
    <!-- 通过mvc:resources设置静态资源，这样servlet就会处理这些静态资源，而不通过控制器 -->
    <!-- 设置不过滤内容，比如:css,jquery,img 等资源文件 -->
    <mvc:resources location="/*.html" mapping="/**.html" />
    <mvc:resources location="/css/*" mapping="/css/**" />
    <mvc:resources location="/js/*" mapping="/js/**" />
    <mvc:resources location="/images/*" mapping="/images/**" />
    <!-- 添加注解驱动 -->
    <mvc:annotation-driven />
    <!-- 默认扫描的包路径 -->
    <context:component-scan base-package="controller" />
    <!-- mvc:view-controller可以在不需要Controller处理request的情况，转向到设置的View -->
    <!-- 像下面这样设置，如果请求为/，则不通过controller，而直接解析为/index.jsp -->
    <mvc:view-controller path="/" view-name="index" />
    <bean class="org.springframework.web.servlet.view.UrlBasedViewResolver">
        <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"></property>
        <!-- 配置jsp路径前缀 -->
        <property name="prefix" value="/"></property>
        <!-- 配置URl后缀 -->
        <property name="suffix" value=".jsp"></property>
    </bean>
</beans>

4、修改index.jsp 文件

文件位置为：WebRoot/index.jsp，内容如下：

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>简易登陆</title>
</head>
<body>
<h2>Hello World!</h2>
<form action="login">
    用户名：<input id="username" name="username" type="text"></input><br>
    密&nbsp;&nbsp;码：<input id="username" name="password" type="password"></input><br>
    <input type="submit">
</form>
<span>当前IP：<%=request.getRemoteAddr() %></span>
</body>
</html>

5、新增MyController.java 文件

文件目录为：controller/MyController.java，内容如下：

package controller;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
/**
 * TODO 控制层代码
 * @author Ruoli
 * @date 2016年08月26日
 */
@Controller
public class MyController {
    @RequestMapping("login")
    public @ResponseBody String hello(
            @RequestParam(value = "username", required = false)String username,
            @RequestParam(value = "password", required = false)String password
            ){
        return "Hello "+username+",Your password is: "+password;
    }
}

6、部署至Tomcat

启动访问 http://localhost:8080/SpringMvc/ 即可。
整个工程目录如下：

7、附件下载

点击此处下载工程附件