jsp:
index.jsp 首页，显示产品信息查询的连接。
product.jsp 显示产品列表。
detail.jsp 显示每个产品的详细信息。
java
Product .java 构造model数据，用户页面显示。
ProductDao.java 也是为了构造数据。直接用个列表生成数据
EncodingFilter.java 为了显示中文。
ToHtml.java 一个Servlet主要是为了根据link里面的file_name 参数生成html文件的。参考下面的连接。
http://blog.csdn.net/zoucui/archive/2009/03/26/4027378.aspx
JspToHtmlFilter.java 对请求的Jsp做过滤，如果是在配置的范围内，就直接转向静态文件（前提，静态文件存在）
HtmlUtil.java 用户配置哪些jsp页面需要转换成html。用Servlet的ServletPath匹配。
CallHtml.java 用户客户端请求配置好的jsp连接，让服务端的servlet去执行文件的转换。
index.jsp文件如下：
<%@ page language="java" contentType="text/html; charset=gb2312"%><%@ page pageEncoding="gb2312"%><%@taglib prefix="c" uri="http://java.sun.com/jstl/core"%><html><head><meta http-equiv="Content-Type" content="text/html; charset=gb2312" /><head/><body><br><a href="<%=request.getContextPath()%>/product.jsp">产看产品信息</a></body><html>
product.jsp :
<%@ page language="java" contentType="text/html; charset=gb2312"%><%@ page pageEncoding="gb2312"%><%@taglib prefix="c" uri="http://java.sun.com/jstl/core"%><%@page import="com.liuxt.jsphtml.util.*" %>
<%request.setAttribute("productList",ProductDao.getInstance().getProductList()); %><html><head><meta http-equiv="Content-Type" content="text/html; charset=gb2312" /><head/><body><br>产品信息如下：<table border="1"><th>产品ID</th><th>产品名称</th><c:forEach items="${productList}" var="product"><tr> <td><a href="<%=request.getContextPath()%>/detail.jsp?id=<c:out value='${product.id}'/>"><c:out value="${product.id}" /></a></td> <td><c:out value="${product.name}" /></td></tr></c:forEach></table>
</body><html>
detail.jsp
<%@ page language="java" contentType="text/html; charset=gb2312"%><%@ page pageEncoding="gb2312"%><%@taglib prefix="c" uri="http://java.sun.com/jstl/core"%><%@page import="com.liuxt.jsphtml.util.*" %>
<%
String productId=request.getParameter("id"); Product p=ProductDao.getInstance().getProduct(productId); request.setAttribute("product",p); %>
<html><head><meta http-equiv="Content-Type" content="text/html; charset=gb2312" /><head/><body><br>产品信息如下：<br>产品ID<br><c:out value="${product.id}"/>
<br>产品名称<br><c:out value="${product.name}"/>
<br>产品描叙<br><c:out value="${product.describe}"/>
<br>产品价格<br><c:out value="${product.price}"/>
</body><html>
Product.java
package com.liuxt.jsphtml.util;
public class Product { String id; String name; String describe; String price;
public String getId() { return id; } public void setId(String id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } public Product(String id, String name) { super(); this.id = id; this.name = name; } public Product() { } public String getDescribe() { return describe; } public void setDescribe(String describe) { this.describe = describe; } public String getPrice() { return price; } public void setPrice(String price) { this.price = price; } }
ProductDao.java
package com.liuxt.jsphtml.util;
import java.util.ArrayList;import java.util.List;
public class ProductDao { private static List productList=new ArrayList(); private static ProductDao productDao=new ProductDao(); @SuppressWarnings("unchecked") private ProductDao(){ Product product1=new Product(); product1.setId("T01"); product1.setName("草莓"); product1.setDescribe("好吃有好看"); product1.setPrice("5.00");
Product product2=new Product(); product2.setId("T02"); product2.setName("芒果"); product2.setDescribe("新鲜的，刚从福建运过来的"); product2.setPrice("4.00"); Product product3=new Product(); product3.setId("T03"); product3.setName("大樱桃"); product3.setDescribe("绝对的，吃了还想买的。好品牌的，大红灯。"); product3.setPrice("15.00"); productList.add(product1); productList.add(product2); productList.add(product3); } public static ProductDao getInstance(){ return productDao; }
@SuppressWarnings("unchecked") public List getProductList(){ return productList;
} public Product getProduct(String id){ Product p=null; for(int i=0;i<productList.size();i++){ p=(Product) productList.get(i); if(p!=null){ if (p.getId().equals(id)){ return p; } } } return null; } }
EncodingFilter.java
package com.liuxt.jsphtml.util;
import java.io.IOException;
import javax.servlet.Filter;import javax.servlet.FilterChain;import javax.servlet.FilterConfig;import javax.servlet.ServletException;import javax.servlet.ServletRequest;import javax.servlet.ServletResponse;
public class EncodingFilter implements Filter {
private FilterConfig filterConfig;
public void init(FilterConfig filterConfig) throws ServletException { this.filterConfig=filterConfig; }
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
request.setCharacterEncoding("gb2312"); chain.doFilter(request, response);
}
public void destroy() {
}
}
HtmlUtil.java
package com.liuxt.jsphtml.util;
import java.util.HashSet;import java.util.Set;
public class HtmlUtil { public static final Set<String> urlSet=new HashSet<String>(); static{ urlSet.add("/product.jsp"); urlSet.add("/index.jsp"); urlSet.add("/test/index.jsp"); }
}
JspToHtmlFilter.java
package com.liuxt.jsphtml.util;
import java.io.File;import java.io.IOException;
import javax.servlet.Filter;import javax.servlet.FilterChain;import javax.servlet.FilterConfig;import javax.servlet.ServletException;import javax.servlet.ServletRequest;import javax.servlet.ServletResponse;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;
public class JspToHtmlFilter implements Filter {
private FilterConfig filterConfig; public void destroy() {
}
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
//前台发送的请求，过滤处理 HttpServletRequest res=(HttpServletRequest)request; String jspURL=res.getServletPath(); System.out.println("jspURL========"+jspURL); if (HtmlUtil.urlSet.contains(jspURL)) { String realpath = filterConfig.getServletContext().getRealPath("/"); String file_name=jspURL; file_name=file_name.replace("/","_"); file_name=file_name.replace(".","_"); String fileName = realpath + "staticPages/" + file_name + ".html"; System.out.println("fileName in filter=="+fileName); File file = new File(fileName); // 判断文件是否存在 if (file.exists()) {// 不存在 生成 // 文件存在，直接转发 // 转向到该html页面 HttpServletResponse hsr = (HttpServletResponse) response; hsr.sendRedirect("staticPages/" + file_name+".html"); return; } } //参数为空，继续chain中的其它filter. chain.doFilter(request, response); }
public void init(FilterConfig filterConfig) throws ServletException { this.filterConfig = filterConfig; //加入初始化的连接，将一些定义好的连接，需要转化为html的，放入集合中。 }
}
CallHtml.java
package com.liuxt.jsphtml.util;
import java.net.HttpURLConnection;import java.net.URL;import java.net.URLConnection;import java.util.Iterator;
public class CallHtml { public static void main(String[] args) { CallHtml callHtml=new CallHtml(); callHtml.makeHtml(); } private void makeHtml() { Iterator iter=HtmlUtil.urlSet.iterator(); while(iter.hasNext()){ String path=(String)iter.next(); callOnePage(path); } }
public void callOnePage(String fileName) { try { String str = "http://localhost:8080/htmlweb/toHtml?file_name=" + fileName; System.out.println("link========="+str); int httpResult; URL url = new URL(str); URLConnection connection = url.openConnection(); connection.connect(); HttpURLConnection httpURLConnection = (HttpURLConnection) connection; httpResult = httpURLConnection.getResponseCode(); if (httpResult != HttpURLConnection.HTTP_OK) { System.out.println("没有连接成功"); } else { System.out.println("连接成功了 "); } } catch (Exception e) { e.printStackTrace(); } }
}
web.xml
<?xml version="1.0" encoding="UTF-8"?><web-app> <display-name>htmlweb</display-name> <servlet> <description></description> <display-name>toHtml</display-name> <servlet-name>toHtml</servlet-name> <servlet-class> com.liuxt.jsphtml.util.ToHtml</servlet-class> </servlet> <servlet-mapping> <servlet-name>toHtml</servlet-name> <url-pattern>/toHtml</url-pattern> </servlet-mapping> <filter> <filter-name>JspToHtmlFilter</filter-name> <filter-class> com.liuxt.jsphtml.util.JspToHtmlFilter </filter-class> </filter> <filter-mapping> <filter-name>JspToHtmlFilter</filter-name> <url-pattern>*.jsp</url-pattern> </filter-mapping> <filter> <filter-name>EncodingFilter</filter-name> <filter-class> com.liuxt.jsphtml.util.EncodingFilter </filter-class> </filter> <filter-mapping> <filter-name>EncodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list></web-app>
