Rest风格的URL地址约束||高版本Tomcat；Rest支持有点问题

Rest：系统希望以非常简洁的URL地址来发请求；

怎样表示对一个资源的增删改查用请求方式来区分

/getBook?id=1 ：查询图书

/deleteBook?id=1：删除1号图书

/updateBook?id=1:更新1号图书

/addBook ：添加图书

Rest推荐；

url地址这么起名； /资源名/资源标识符

/book/1 ：GET-----查询1号图书

/book/1 :PUT------更新1号图书

/book/1 :DELETE-----删除1号图书

/book :POST-----添加图书

系统的URL地址就这么来设计即可；

简洁的URL提交请求，以请求方式区分对资源操作；

问题：从页面上只能发起两种请求，GET、POST；

其他的请求方式没法使用；

发起图书的增删改查请求；使用Rest风格的URL地址；

注意：高版本Tomcat；Rest支持有点问题

解决方法

index.jsp

<%@ 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>Insert title here</title>
</head>
<body>

<a href="book/1">查询图书</a><br/><br/>

<form action="book" method="post">
	<input type="submit" value="添加1号图书"/>
</form><br/>


<!-- 发送DELETE请求 -->
<form action="book/1" method="post">
	<input name="_method" value="delete"/>
	<input type="submit" value="删除1号图书"/>
</form><br/>

<!-- 发送PUT请求 -->
<form action="book/1" method="post">
	<input name="_method" value="put"/>
	<input type="submit" value="更新1号图书"/>
</form><br/>

</body>
</html>

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<!--suppress ALL -->
<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>3.SpringMVC_rest</display-name>
  <welcome-file-list>
    <welcome-file>index.html</welcome-file>
    <welcome-file>index.htm</welcome-file>
    <welcome-file>index.jsp</welcome-file>
    <welcome-file>default.html</welcome-file>
    <welcome-file>default.htm</welcome-file>
    <welcome-file>default.jsp</welcome-file>
  </welcome-file-list>
  
  <!-- The front controller of this Spring Web application, responsible for handling all application requests -->
	<servlet>
		<servlet-name>springmvc</servlet-name>
		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
		<load-on-startup>1</load-on-startup>
	</servlet>
	<!-- Map all requests to the DispatcherServlet for handling -->
	<servlet-mapping>
		<servlet-name>springmvc</servlet-name>
		<url-pattern>/</url-pattern>
	</servlet-mapping>
	
	<filter>
		<filter-name>HiddenHttpMethodFilter</filter-name>
		<filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class>
	</filter>
	<filter-mapping>
		<filter-name>HiddenHttpMethodFilter</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>
  
</web-app>

springmvc-servlet.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: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-4.0.xsd">

	<context:component-scan base-package="com.atguigu"></context:component-scan>
	
	<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<property name="prefix" value="/WEB-INF/pages/"></property>
		<property name="suffix" value=".jsp"></property>
	</bean>

</beans>

BookController.java

package com.atguigu.controller;

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

@Controller
public class BookController {
	/**
	 * 处理查询图书请求
	 * @param id
	 * @return
	 */
	@RequestMapping(value="/book/{bid}",method=RequestMethod.GET)
	public String getBook(@PathVariable("bid")Integer id) {
		System.out.println("查询到了"+id+"号图书");
		return "success";
	}
	
	/**
	 * 图书删除
	 * @param id
	 * @return
	 */
	@RequestMapping(value="/book/{bid}",method=RequestMethod.DELETE)
	public String deleteBook(@PathVariable("bid")Integer id) {
		System.out.println("删除了"+id+"号图书");
		return "success";
	}

	/**
	 * 图书更新
	 * @return
	 */
	@RequestMapping(value="/book/{bid}",method=RequestMethod.PUT)
	public String updateBook(@PathVariable("bid")Integer id) {
		System.out.println("更新了"+id+"号图书");
		return "success";
	}

	@RequestMapping(value="/book",method=RequestMethod.POST)
	public String addBook() {
		System.out.println("添加了新的图书");
		return "success";
	}
}

success.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8" isErrorPage="true" %>
<!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>Insert title here</title>
</head>
<body>

<h1>你成功了，6666</h1>
</body>
</html>

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