maven的依赖
<!--导入Spring的核心jar包-->
<!-- https://mvnrepository.com/artifact/org.springframework/spring-context -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>5.2.7.RELEASE</version>
</dependency>
<!--springWeb的jar-->
<!-- https://mvnrepository.com/artifact/org.springframework/spring-web -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>5.2.7.RELEASE</version>
</dependency>
<!--springMVC的jar-->
<!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>5.2.7.RELEASE</version>
</dependency>
配置拦截器
web.xml文件中添加一个过滤器
<!--配置支持rest风格的过滤器-->
<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>
创建表单
对于PUT请求和DELETE请求通过添加隐藏域设置_method属性
<body>
<a href="hello">hello</a>
<a href="/springMVC/getResources/1">获取资源</a>
<form action="/springMVC/addResources" method="post">
<input type="submit" value="添加资源"/>
</form>
<form action="/springMVC/updateResources/1" method="post">
<input type="hidden" name="_method" value="put"/>
<input type="submit" value="修改资源"/>
</form>
<form action="/springMVC/deleteResources/1" method="post">
<input type="hidden" name="_method" value="delete"/>
<input type="submit" value="删除资源"/>
</form>
</body>
编写控制器
package com.xzy.controller;
import org.springframework.web.bind.annotation.*;
@RestController
public class RestfulController {
@RequestMapping(value = "/getResources/{id}",method = RequestMethod.GET)
public String getResources(@PathVariable("id") Integer id){
System.out.println("获取了"+id+"号资源");
return "success";
}
@RequestMapping(value = "/addResources",method = RequestMethod.POST)
public String addResources(){
System.out.println("添加了资源");
return "success";
}
@RequestMapping(value = "/updateResources/{id}",method = RequestMethod.PUT)
public String updateResources(@PathVariable("id") Integer id){
System.out.println("更新了"+id+"号资源");
return "success";
}
@RequestMapping(value = "/deleteResources/{id}",method = RequestMethod.DELETE)
public String deleteResources(@PathVariable("id") Integer id){
System.out.println("删除"+id+"号资源");
return "success";
}
/*
@RequestMapping("/success")
public String success(){
return "success";
}
*/
}
@RestController出现405处理
出现原因：Tomcat7以上对JSP页面要求比较严格，也就是高版本的Tomcat不支持。
方式一
将@Controller换成@RestController注解
@RestController
public class RestfulController {
方式二
编写一个控制器进行重定向跳转
@RequestMapping(value = "/updateResources/{id}",method = RequestMethod.PUT)
public String updateResources(@PathVariable("id") Integer id){
System.out.println("更新了"+id+"号资源");
return "redirect:/success";
}
@RequestMapping(value = "/deleteResources/{id}",method = RequestMethod.DELETE)
public String deleteResources(@PathVariable("id") Integer id){
System.out.println("删除"+id+"号资源");
return "redirect:/success";
}
@RequestMapping("/success")
public String success(){
return "success";
}