SpringMVC rest风格的url

无多余后缀，没有？！=那些乱七八糟的东西。

但是rest风格也是有很多不好控制的东西，所以大部分的网站还是再用传统方式，稍好一点的会采用.html或.htm为后缀

知识点：

1.SpringMVC——对rest风格的支持

2.@PathVariable获取url变量

3.SpringMVC对静态资源的处理

示例（模拟文章的点击查看）

实体类：

package com.maya.model;

public class Article {
    private int id;
    private String title;
    private String content;
    public Article() {
        super();
        // TODO Auto-generated constructor stub
    }
    public Article(String title, String content) {
        super();
        this.title = title;
        this.content = content;
    }
    public int getId() {
        return id;
    }
    public void setId(int id) {
        this.id = id;
    }
    public String getTitle() {
        return title;
    }
    public void setTitle(String title) {
        this.title = title;
    }
    public String getContent() {
        return content;
    }
    public void setContent(String content) {
        this.content = content;
    }
}

控制层

package com.maya.controller;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;

import com.maya.model.Article;

@Controller
@RequestMapping("article")
public class ArticleController {
    @RequestMapping("/list")
    public String list(Model model){
        return "list";
    }
    @RequestMapping("/details/{id}")//请求的参数，可以跟多个所以用集合的方式
    public ModelAndView details(@PathVariable("id") int id){//@PathVariable获取url的变量
        ModelAndView mav=new ModelAndView();
        if(id==1){
            mav.addObject("article", new Article("文章一","文章一的内容"));
        }else if(id==2){
            mav.addObject("article", new Article("文章二","文章二的内容"));
        }
        mav.setViewName("details");//设置返回的视图名
        return mav;
    }
}

list.jsp

<body>
<table>
    <tr>
        <th colspan="2">
            <img alt="文章列表" src="${pageContext.request.contextPath}/resources/article_list.jpg">
        </th>                                                        <!-- 以resources就被被映射到images路径下 -->
    </tr>
    <tr>
        <td>1</td>
        <td>
            <a href="${pageContext.request.contextPath}/article/details/1" target="_blank">文章一</a>
        </td>                                    <!-- /article/details/1 : 带的参数id -->
    </tr>
    <tr>
        <td>2</td>
        <td>
            <a href="${pageContext.request.contextPath}/article/details/2" target="_blank">文章二</a>
        </td>
    </tr>
</table>
</body>

details.jsp

<link href="${pageContext.request.contextPath }/resources2/css.css" rel="stylesheet" type="text/css"/>
</head>
<body>
<h1>${article.title }</h1>
${article.content }
</body>

spring-mvc.xml

<?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"
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd
        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">

    <!-- 使用注解的包，包括子集 -->
    <context:component-scan base-package="com.maya"/>
    
    <!-- 注解驱动 -->
    <mvc:annotation-driven></mvc:annotation-driven>
    <!-- 这样所有以resources开头的都会被映射到images路径下 -->
    <mvc:resources mapping="/resources/**" location="/images/"/>
    <!-- 多个路径时可以这样区分开写 -->
    <mvc:resources mapping="/resources2/**" location="/css/"/>

    <!-- 视图解析器 -->
    <bean id="viewResolver"
        class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/article/" /><!-- 返回视图到这个目录下 -->
        <property name="suffix" value=".jsp"></property>
    </bean>

</beans>

web.xml

<?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" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
  <display-name>SpringMVC3</display-name>
  <welcome-file-list>
    <welcome-file>index.html</welcome-file>
  </welcome-file-list>
  <!-- 同struts一样，也是需要拦截请求 -->
  <servlet>
        <servlet-name>springmvc</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:spring-mvc.xml</param-value>
        </init-param>
    </servlet>
    <servlet-mapping>
        <servlet-name>springmvc</servlet-name>
        <url-pattern>/</url-pattern><!-- 既然是rest风格的就不能只拦截后缀是.do的请求了，直接/，拦截所有请求才可以 -->
    </servlet-mapping>
</web-app>
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原文地址：https://www.cnblogs.com/AnswerTheQuestion/p/6687121.html