SpringMVC修改功能

articleList.jsp

<%@  taglib  uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>

<html>

<head>

<title>All Articles</title>

</head>

<body>

<h1>List Articles</h1>

<a href="articles/add.html">Add Article</a>

<c:if test="${!empty articles}">

<table>

<tr>

<th>Article ID</th>

<th>Article Name</th>

<th>Article Desc</th>

<th>Added Date</th>

</tr>

<c:forEach items="${articles}" var="article">

<tr>

<td><c:out value="${article.articleId}"/></td>

<td><c:out value="${article.articleName}"/></td>

<td><c:out value="${article.articleDesc}"/></td>

<td><c:out value="${article.addedDate}"/></td>

<!-- <td><a href="#" onclick="getData('articles.do?actionMethod=delete&queryId=${article.articleId}','','workspace');">delete</a></td>  -->

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

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

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

</tr>

</c:forEach>

</table>

</c:if>

</body>

</html>

DeleteArticle.java

从上个页面获取ID值，并且赋给ids

 package net.roseindia.controller;

 import net.roseindia.model.Article;

 import net.roseindia.service.ArticleService;

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

 import org.springframework.stereotype.Controller;

 import org.springframework.ui.Model;

 import org.springframework.validation.BindingResult;

 import org.springframework.web.bind.annotation.ModelAttribute;

 import org.springframework.web.bind.annotation.PathVariable;

 import org.springframework.web.bind.annotation.RequestMapping;

 import org.springframework.web.bind.annotation.RequestMethod;

 import org.springframework.web.bind.annotation.RequestParam;

 import org.springframework.web.servlet.ModelAndView;

 @Controller

 @RequestMapping("/articles")

 public class DeleteController {

     @Autowired

       private ArticleService articleService;

       @RequestMapping(value="/delete")

       public String deleteService(@RequestParam("ID")  final Integer ids) {

           System.out.println("delete"+"ID="+ids);

           articleService.deleteService(ids);

           return "redirect:/articles.html";

       }

       @RequestMapping(value="/edit")

       public ModelAndView editSerivie(@RequestParam("ID") final Integer ids,

               @ModelAttribute("article") Article article,BindingResult result,final Model model){

          System.out.println("edit ID"+ids);

          model.addAttribute("articleId",ids);

          return new ModelAndView("editArticle");

       }

       /**

       @RequestMapping(value = "/add", method = RequestMethod.GET)

       public ModelAndView addArticle(@ModelAttribute("article") Article article,

           BindingResult result) {

         return new ModelAndView("addArticle");

       }**/

 }

把ids给articleId

articleId作为模型属性能够传给jsp页面

editArticle.jsp

 <%@  taglib  uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>

 <%@  taglib  uri="http://www.springframework.org/tags/form" prefix="form"%>

 <html>

 <head><title>Edit Article</title></head>

 <body>

 <h1>Edit Article</h1>

 <c:url var="viewArticlesUrl" value="/articles.html" />

 <a href="${viewArticlesUrl}">Show All Articles</a>

 <br />

 <br />

 <c:url var="editSaveArticleUrl" value="/articles/editSave.html?ID=${articleId}" />

 <form:form modelAttribute="article" method="POST" action="${editSaveArticleUrl}">

 <c:out value="Article ID:"></c:out>

  <c:out value="${articleId}"/>

  <br />

  <br />

 <form:label path="articleName">Article Name:</form:label>

 <form:input path="articleName" />

 <br />

 <form:label path="articleDesc">Article Desc:</form:label>

 <form:textarea path="articleDesc" />

 <br />

 <input type="submit" value="Save Article"  />

 </form:form>

 </body>

 </html>

点击保存后被ArticleController捕获，并做处理，在Dao层进行update数据！做完处理后显示在article.html页面

ArticleController.java

 package net.roseindia.controller;

 import java.util.HashMap;

 import java.util.Map;

 import net.roseindia.model.Article;

 import net.roseindia.service.ArticleService;

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

 import org.springframework.stereotype.Controller;

 import org.springframework.validation.BindingResult;

 import org.springframework.web.bind.annotation.ModelAttribute;

 import org.springframework.web.bind.annotation.PathVariable;

 import org.springframework.web.bind.annotation.RequestMapping;

 import org.springframework.web.bind.annotation.RequestMethod;

 import org.springframework.web.bind.annotation.RequestParam;

 import org.springframework.web.servlet.ModelAndView;

 @Controller

 @RequestMapping("/articles")

 public class ArticleController {

   @Autowired

   private ArticleService articleService;

   @RequestMapping(value = "/save", method = RequestMethod.POST)

   public ModelAndView saveArticle(@ModelAttribute(" article") Article  article,

       BindingResult result) {

       System.out.println("save's articleName"+article.getArticleName());

      articleService.addArticle(article);

     return new ModelAndView("redirect:/articles.html");

   }

   @RequestMapping(value = "/editSave", method = RequestMethod.POST)

   public ModelAndView editSaveArticle(@RequestParam("ID")  final Integer ids,

           @ModelAttribute(" article") Article  article,

       BindingResult result) {

       System.out.println("editSaveController--id"+ids);

       System.out.println("editSave's articleName"+article.getArticleName());

      articleService.updateArticle(article,ids);

     return new ModelAndView("redirect:/articles.html");

   }

 /**@RequestMapping(value="/delete",method = RequestMethod.POST)

   public String deleteService(@RequestParam("ID")  final Integer ids) {

      System.out.println("hello"+"ID="+ids);

      articleService.deleteService(ids);

      return "redirect:/articles.html";

      }

 **/

   @RequestMapping(method = RequestMethod.GET)

   public ModelAndView listArticles() {

     Map<String, Object> model = new HashMap<String, Object>();

     model.put("articles",  articleService.listArticles());

     return new ModelAndView("articlesList", model);

   }

   @RequestMapping(value = "/add", method = RequestMethod.GET)

   public ModelAndView addArticle(@ModelAttribute("article") Article article,

       BindingResult result) {

     return new ModelAndView("addArticle");

   }

 }

ArticleDaoImpl.java

在Dao层进行update数据！做完处理后显示在article.html页面

 package net.roseindia.dao;

 import java.util.Date;

 import java.util.List;

 import net.roseindia.model.Article;

 import org.hibernate.Session;

 import org.hibernate.SessionFactory;

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

 import org.springframework.stereotype.Repository;

 @Repository("articleDao")

 public class ArticleDaoImpl implements ArticleDao {

   @Autowired

   private SessionFactory sessionFactory;

   // To Save the article detail

   public void saveArticle(Article article) {

     article.setAddedDate(new Date());

     sessionFactory.getCurrentSession().saveOrUpdate(article);

   }

   public void deleteArticle(Integer articleId){

       System.out.println("Dao-->"+articleId);

       Session session=sessionFactory.openSession();

       Article article = (Article) session.get( Article.class,articleId);

       session.beginTransaction();

       if (null != article) {

           session.delete(article);

       }

       session.getTransaction().commit();

       session.close();

   }

   public void updateArticle(Article article,Integer ids){

       System.out.println("upadateDao--->"+ids);

       System.out.println("upadateDao--->"+article.getArticleName());

       Session session=sessionFactory.openSession();

       session.beginTransaction();

       Article newArticle=(Article)session.get(Article.class, ids);

       newArticle.setArticleName(article.getArticleName());

       newArticle.setArticleDesc(article.getArticleDesc());

       session.update(newArticle);

       session.getTransaction().commit();

       session.clear();

   }

   // To get list of all articles

   @SuppressWarnings("unchecked")

   public List<Article> listArticles() {

     return (List<Article>) sessionFactory.getCurrentSession().createCriteria(Article.class).list();

   }

 }

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SpringMVC修改功能

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