springMVC，如何删除链接（href）

Question

package net.roseindia.controller;

import net.roseindia.service.ArticleService;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;


@Controller
@RequestMapping("/articles")
public class DeleteController {
    @Autowired
      private ArticleService articleService;

      @RequestMapping(value="/delete")
      public String deleteService(@RequestParam("ID") final Integer ids) {
          System.out.println("hello");
          articleService.deleteService(ids);

          return "redirect:/articles";

      }

}

may be here~~~~~~~~~~~~~~~~~~~~~~

<td><a href="/articles/delete.do?ID=${article.articleId}">delete</a></td>

This problem just sticked me a lot.I think it might be the problem of href.Controller could not grasp the link of href

(second try)But It seems it also does not work like this

import net.roseindia.service.ArticleService;

import org.springframework.beans.factory.annotation.Autowired;
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.RequestParam;


@Controller
@RequestMapping("/articles")
public class DeleteController {
    @Autowired
      private ArticleService articleService;

      @RequestMapping(value="/delete/{ID}")
      public String deleteService(@PathVariable("ID") final Integer ids) {
          System.out.println("hello");
          articleService.deleteService(ids);

          return "redirect:/articles";

      }

}

    td><a href="/articles/delete/${article.articleId}.html">delete</a></td> 

this is my web.xml

 <?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">

<servlet>

<servlet-name>dispatcher</servlet-name>

<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

<load-on-startup>1</load-on-startup>

</servlet>

<servlet-mapping>

<servlet-name>dispatcher</servlet-name>

<url-pattern>*.html</url-pattern>

</servlet-mapping>

<welcome-file-list>

<welcome-file>index.jsp</welcome-file>

</welcome-file-list>

</web-app>

Promble is

HTTP Status 404 - /articles/delete/2.html

---

type Status report

message /articles/delete/2.html

description The requested resource is not available.

Answer 1

Reason for Http 404 error is no mapping found for your http request. Seems from your configurations that your controller and request mapping is not getting configured.

you need to define your dispatcher with some context configuration as follows:

<servlet>
    <servlet-name>dispatcher</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/spring/servlet-context.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
</servlet>

and then in servlet-context.xml , you need to define component-scan as follows to scan your annotation driven controllers:

<annotation-driven />
<context:component-scan base-package="net.roseindia.controller" />