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

 1 package net.roseindia.controller;
 2 import net.roseindia.model.Article;
 3 import net.roseindia.service.ArticleService;
 4 
 5 import org.springframework.beans.factory.annotation.Autowired;
 6 import org.springframework.stereotype.Controller;
 7 import org.springframework.ui.Model;
 8 import org.springframework.validation.BindingResult;
 9 import org.springframework.web.bind.annotation.ModelAttribute;
10 import org.springframework.web.bind.annotation.PathVariable;
11 import org.springframework.web.bind.annotation.RequestMapping;
12 import org.springframework.web.bind.annotation.RequestMethod;
13 import org.springframework.web.bind.annotation.RequestParam;
14 import org.springframework.web.servlet.ModelAndView;
15 
16 
17 @Controller
18 @RequestMapping("/articles")
19 public class DeleteController {
20     @Autowired
21       private ArticleService articleService;
22 
23       @RequestMapping(value="/delete")
24       public String deleteService(@RequestParam("ID")  final Integer ids) {
25           System.out.println("delete"+"ID="+ids);
26           articleService.deleteService(ids);
27 
28           return "redirect:/articles.html";
29           
30       }
31       @RequestMapping(value="/edit")
32       public ModelAndView editSerivie(@RequestParam("ID") final Integer ids,
33               @ModelAttribute("article") Article article,BindingResult result,final Model model){
34          System.out.println("edit ID"+ids);
35          model.addAttribute("articleId",ids);
36          return new ModelAndView("editArticle");
37         
38           
39       }
40       /**
41       @RequestMapping(value = "/add", method = RequestMethod.GET)
42       public ModelAndView addArticle(@ModelAttribute("article") Article article,
43           BindingResult result) {
44         return new ModelAndView("addArticle");
45       }**/
46 }

把ids给articleId

articleId作为模型属性能够传给jsp页面

editArticle.jsp

 1 <%@  taglib  uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
 2 
 3 <%@  taglib  uri="http://www.springframework.org/tags/form" prefix="form"%>
 4  
 5 <html>
 6 
 7 <head><title>Edit Article</title></head>
 8 
 9 <body>
10 
11 <h1>Edit Article</h1>
12  
13 <c:url var="viewArticlesUrl" value="/articles.html" />
14 
15 <a href="${viewArticlesUrl}">Show All Articles</a>
16  
17 <br />
18 
19 <br />
20 
21 <c:url var="editSaveArticleUrl" value="/articles/editSave.html?ID=${articleId}" />
22 
23 <form:form modelAttribute="article" method="POST" action="${editSaveArticleUrl}">
24 
25 
26 <c:out value="Article ID:"></c:out>
27  <c:out value="${articleId}"/>
28  <br />
29  <br />
30  
31 <form:label path="articleName">Article Name:</form:label>
32  
33 <form:input path="articleName" />
34  
35 <br />
36  
37 <form:label path="articleDesc">Article Desc:</form:label>
38  
39 <form:textarea path="articleDesc" />
40  
41 <br />
42  
43 <input type="submit" value="Save Article"  />
44 
45 </form:form>
46  
47 </body>
48 
49 </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

 1 package net.roseindia.controller;
 2 
 3 import java.util.HashMap;
 4 import java.util.Map;
 5 
 6 import net.roseindia.model.Article;
 7 import net.roseindia.service.ArticleService;
 8 import org.springframework.beans.factory.annotation.Autowired;
 9 import org.springframework.stereotype.Controller;
10 import org.springframework.validation.BindingResult;
11 import org.springframework.web.bind.annotation.ModelAttribute;
12 import org.springframework.web.bind.annotation.PathVariable;
13 import org.springframework.web.bind.annotation.RequestMapping;
14 import org.springframework.web.bind.annotation.RequestMethod;
15 import org.springframework.web.bind.annotation.RequestParam;
16 import org.springframework.web.servlet.ModelAndView;
17 
18 @Controller
19 @RequestMapping("/articles")
20 public class ArticleController {
21 
22   @Autowired
23   private ArticleService articleService;
24 
25   @RequestMapping(value = "/save", method = RequestMethod.POST)
26   public ModelAndView saveArticle(@ModelAttribute(" article") Article  article,
27       BindingResult result) {
28       System.out.println("save's articleName"+article.getArticleName());
29      articleService.addArticle(article);
30     return new ModelAndView("redirect:/articles.html");
31   }
32  
33   @RequestMapping(value = "/editSave", method = RequestMethod.POST)
34   public ModelAndView editSaveArticle(@RequestParam("ID")  final Integer ids,
35           @ModelAttribute(" article") Article  article,
36       BindingResult result) {
37       System.out.println("editSaveController--id"+ids);
38       System.out.println("editSave's articleName"+article.getArticleName());
39      articleService.updateArticle(article,ids);
40     return new ModelAndView("redirect:/articles.html");
41   }
42  
43 /**@RequestMapping(value="/delete",method = RequestMethod.POST)
44   public String deleteService(@RequestParam("ID")  final Integer ids) {
45      System.out.println("hello"+"ID="+ids);
46      articleService.deleteService(ids);
47      return "redirect:/articles.html";          
48      }
49 **/
50 
51 
52 
53   @RequestMapping(method = RequestMethod.GET)
54   public ModelAndView listArticles() {
55     Map<String, Object> model = new HashMap<String, Object>();
56     model.put("articles",  articleService.listArticles());
57 
58     return new ModelAndView("articlesList", model);
59   }
60 
61   @RequestMapping(value = "/add", method = RequestMethod.GET)
62   public ModelAndView addArticle(@ModelAttribute("article") Article article,
63       BindingResult result) {
64     return new ModelAndView("addArticle");
65   }
66   
67 
68 
69 }

ArticleDaoImpl.java

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

 1 package net.roseindia.dao;
 2 
 3 import java.util.Date;
 4 import java.util.List;
 5 
 6 import net.roseindia.model.Article;
 7 
 8 import org.hibernate.Session;
 9 import org.hibernate.SessionFactory;
10 import org.springframework.beans.factory.annotation.Autowired;
11 import org.springframework.stereotype.Repository;
12 
13 @Repository("articleDao")
14 public class ArticleDaoImpl implements ArticleDao {
15 
16   @Autowired
17   private SessionFactory sessionFactory;
18 
19   // To Save the article detail
20   public void saveArticle(Article article) {
21     article.setAddedDate(new Date());
22     sessionFactory.getCurrentSession().saveOrUpdate(article);
23   }
24   public void deleteArticle(Integer articleId){
25       System.out.println("Dao-->"+articleId);
26       Session session=sessionFactory.openSession();
27       Article article = (Article) session.get( Article.class,articleId);
28       session.beginTransaction();
29       if (null != article) {
30           session.delete(article);
31       }
32       session.getTransaction().commit();
33       session.close();
34 
35   }
36   public void updateArticle(Article article,Integer ids){
37       System.out.println("upadateDao--->"+ids);
38       System.out.println("upadateDao--->"+article.getArticleName());
39       Session session=sessionFactory.openSession();
40       session.beginTransaction();
41       Article newArticle=(Article)session.get(Article.class, ids);
42       newArticle.setArticleName(article.getArticleName());
43       newArticle.setArticleDesc(article.getArticleDesc());
44       session.update(newArticle);
45       session.getTransaction().commit();
46       session.clear();
47       
48   }
49   // To get list of all articles
50   @SuppressWarnings("unchecked")
51   public List<Article> listArticles() {    
52     return (List<Article>) sessionFactory.getCurrentSession().createCriteria(Article.class).list();
53   }
54 }

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原文地址：https://www.cnblogs.com/kyxyes/p/3448883.html