注:若需要被静态化的 页面中 使用了 response.sendRedirect跳转,则最后静态页面为 最终跳转后的页面。
而那些 使用js 跳转的 比如 window.location.href 则 无效,直接作为js代码在生成的静态页面中,并执行。
//保存为文件
import java.io.*;public class GenerateIndexPage { protected static String defaultToFile = "frame/main_Null.html"; protected static String defaultFromFile = "http://localhost:8080/stfb/frame/main_Null.jsp"; String result = ""; public String genHtml(String fromFile,String toFile) throws Exception { if("".equals(fromFile)||fromFile==null){ fromFile = defaultFromFile; } if("".equals(toFile)||toFile==null){ toFile = defaultToFile; } java.net.URL url = new java.net.URL(fromFile); java.net.HttpURLConnection conn =(java.net.HttpURLConnection) url.openConnection(); try{ if (conn.getResponseCode() == 200) { java.io.InputStream is = (java.io.InputStream) conn.getContent(); try{ ConfigInfo cfn = new ConfigInfo(); String server_path = cfn.getValue("server_path"); String savePath = server_path+"\\"+toFile; FileOutputStream baos = new FileOutputStream(new File(savePath)); int buffer = 1024; byte[] b = new byte[buffer]; int n = 0; while ((n = is.read(b, 0, buffer)) > 0) { baos.write(b, 0, n); } //String s = new String(baos.toByteArray(), WEATHER_HTML_CHARSET); is.close(); baos.close(); result = "生成成功"; }catch(Exception e){ result="写文件过程出错,取消生成。"; } }else{ result="获得链接过程出错,取消生成。"; } }catch(Exception e){ e.printStackTrace(); result="获得内容过程出错,取消生成。"; } return result; } }
//返回字节流
public String getHtml(JspWriter out) throws Exception { //System.setProperty("http.proxyHost", "isaserver");System.setProperty("http.proxyPort", "80"); java.net.URL url = new java.net.URL("http://weather.china.com.cn/city/58362_zx.html"); java.net.HttpURLConnection conn = (java.net.HttpURLConnection) url.openConnection(); if (conn.getResponseCode() == 200) { java.io.InputStream is = (java.io.InputStream) conn.getContent(); java.io.ByteArrayOutputStream baos = new java.io.ByteArrayOutputStream(); int buffer = 1024; byte[] b = new byte[buffer]; int n = 0; while ((n = is.read(b, 0, buffer)) > 0) { baos.write(b, 0, n); } String s = new String(baos.toByteArray(), "UTF-8"); is.close(); baos.close(); return s; } return "";}
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