动态的,应该是我的主网页上加载数据库中的数据,而无需用户提交后或get请求加载内容通过Servlet的
想这是我的JSP主页,我想他从最受欢迎的文章数据库
<body>
<div class="content">
<div class="article"></div>
<div class="article"></div>
<div class="article"></div>
<div class="article"></div>
</div>
</body>
和我的servlet将在我的数据库选择Connet,并返回一个对象填充我的jsp
public class ServLetLoad extends HttpServlet {
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
}
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
}
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
}
}
假设这种方法连接到数据库,并返回一个礼ST文章
List<Article> articles = new ArticleContent ('article').findAll();
其中在servlet我会把这句话, 我怎么会做我的servlet来无后调用或get请求和对象回到我的jsp?
编辑
我这样做
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
try {
this.factory = Persistence.createEntityManagerFactory("article");
EntityManager em = factory.createEntityManager();
TypedQuery<Article> article= em.createNamedQuery("Article.findAll", Article.class);
List<Article> result = article.getResultList();
request.setAttribute("Article",result);
RequestDispatcher view = request.getRequestDispatcher("index.jsp");
view.forward(request, response);
} finally {
out.close();
}
}
在JSP中我不知道恢复DATAS我尝试这样的事情
<%@page import="java.util.ArrayList"%>
<%@page import="java.util.List"%>
<%@page import="dao.Article"%>
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Home Page</title>
</head>
<body>
<% List<Article> list;
list = request.getAttribute("Article");
%>
</body>
</html>
大胆不需要;) – jotadepicas
只为亮点的地方问题:) –
我已经编辑你的编辑代码与铸造** request.getAttribute **和循环 –