利用servlet输出CSS

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我是靠谱客的博主勤劳口红，这篇文章主要介绍利用servlet输出CSS，现在分享给大家，希望可以做个参考。

一、Servlet类

import java.io.IOException;

import java.sql.Connection;

import java.sql.SQLException;

import javax.servlet.ServletException;

import javax.servlet.ServletOutputStream;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import util.HtmlPage;

import util.Mail;

import util.PubFun;

public class CssCtrl extends HttpServlet {

@Override

protected void doGet(HttpServletRequest req, HttpServletResponse resp)

throws ServletException, IOException {

String jspStr = "Page参数不能为空";

Connection conn = null;

resp.setContentType("text; charset=UTF-8");

HtmlPage page = new page.newadmin.LoadTemplatePage();//initHtmlPage(req.getParameter("cssid"));

ServletOutputStream out = resp.getOutputStream();

if (page == null) {

resp.sendRedirect("http://www.61live.com/index.html");

out.close();

return;

}

try {

conn = PubFun.getConn(true);

page.prepare(conn, req, resp);

jspStr = page.print();

} catch (Exception e) {

System.out.println(e.toString());

jspStr = e.toString();

Mail.send("xukai@61live.com", "xukai@61live.com",req.getRequestURI()+"?"+ req

.getQueryString(), e.getMessage(), null, "xukai@61live.com",

"xukai");

Mail.send("litao@61live.com", "xukai@61live.com",req.getRequestURI()+"?"+ req

.getQueryString(), e.getMessage(), null, "xukai@61live.com",

"xukai");

} finally {

if (conn != null) {

try {

conn.close();

} catch (SQLException e2) {

System.out.println(page.getClass().getName() + "conn.close() falied");

}

if(jspStr!=null){

out.print(jspStr);

}

out.close();

}

@Override

protected void doPost(HttpServletRequest arg0, HttpServletResponse arg1)

throws ServletException, IOException {

// TODO Auto-generated method stub

super.doPost(arg0, arg1);

}

private static HtmlPage initHtmlPage(String page) {

if (page.equals("LoadTemplatePage")) // 选择已有的图片标签

return new page.newadmin.LoadTemplatePage();

return null;

}

二、读取模板信息

package page.newadmin;

import util.HtmlPage;

import javabean.Template;

public class LoadTemplatePage extends HtmlPage {

public String print() throws Exception {

long cssid = this.getLongParameter("cssid", -1);

// 此文章的模板信息

Template temp = table.TemplateTable.selctTemplate(conn_, cssid);

StringBuffer strVal = new StringBuffer(temp.getCssCont());

return strVal.toString();

}

三、JSP页面读取CSS
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@page import="javabean.Template" import="javabean.TopicTag"
%>

<%
Template template = (Template)request.getAttribute("template");

%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title><%=art.getTitle()+"-成长网" %></title>
<meta name="description" content="<%=art.getPicDesc() %>" />
<meta name="keywords" content=" <%=art.getKeyword() %>" />
<%if(template==null){ %>
<link href="<%=request.getContextPath() _fcksavedurl=""<%=request.getContextPath()" %>/webapp/css/deafchild/style.css" rel="stylesheet" type="text/css" />
<%}else{ %>
<link href="<%=request.getContextPath()%>/webapp/css/deafchild/CssCtrl?cssid=<%=template.getCssId() %>" rel="stylesheet" type="text/css" />
<%} %>

四、数据库结构

8. 模板表：

tab_tempalte

字段说明	字段名	是否主键	数据类型	备注
模板ID	Css_id	T	number
模板名称	Css_name	F	Nvarchar2(100)
模板内容	Css_cont		CLOB
创建人ID	Admin_ID	F	Nvarchar2(32)
创建人名称	Admin_name	F	Nvarchar2(100)
创建时间	Create_time		DATE
最后修改时间	Last_TIME	F	DATE
最后修改人	Last_update_admin	F	Nvarchar2(100)
备注	Back		Nvarchar2(2000)
标志字段	Flag		NUMBER	1=可用 0=删除