网面图片抓取工具 java Web 应用

package com.slhe.grad; import java.io.BufferedReader; import java.io.DataInputStream; import java.io.File; import java.io.FileOutputStream; import java.io.InputStreamReader; import java.net.URL; import java.util.Random; import javax.servlet.http.HttpServletRequest; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.servlet.ModelAndView; @Controller @RequestMapping({"/img"}) public class GradImg { private static final String SAVE_PATH = "D:/img/"; @RequestMapping(value="",method = RequestMethod.GET) public ModelAndView img(){ return new ModelAndView("index"); } @RequestMapping(value="/grad",method = RequestMethod.POST) public ModelAndView grad(HttpServletRequest request) throws Exception{ String urlPath = request.getParameter("imgurl"); String useforntExt = request.getParameter("useforntext"); String forntExt = request.getParameter("forntext"); String imgStr = autosaveimg(urlPath,useforntExt==null?false:true,forntExt); ModelAndView mav = new ModelAndView(); mav.addObject("imgstr", imgStr); mav.setViewName("index"); return mav; } private String autosaveimg(String urlPath,boolean useforntext,String forntext) throws Exception{ if(urlPath==null || urlPath.trim().length() ==0) return ""; URL url = new URL(urlPath); InputStreamReader isr = new InputStreamReader(url.openStream(),"utf-8"); BufferedReader br = new BufferedReader(isr); String reg="(?i).+?\\.(jpg)"; GroupMethod gMethod = new GroupMethod(); StringBuffer buffer = new StringBuffer(); String strRead = ""; while((strRead = br.readLine())!=null ){ String strGet = gMethod.regularGroup(reg, strRead); if(!strGet.equals("")){ strGet = strGet.replace("\\/", "/"); buffer.append(strGet).append("<br>"); if(useforntext){ autosave(forntext + strGet); }else autosave(strGet); } } br.close(); isr.close(); return buffer.toString(); } private boolean autosave(String imgUrl){ boolean b = false; try { imgUrl = imgUrl.replace("https", "http"); URL url = new URL(imgUrl); DataInputStream is = new DataInputStream(url.openStream()); FileOutputStream os = new FileOutputStream(new File(SAVE_PATH+new Random().nextInt(1000000)+".jpg")); byte[] buffer = new byte[1024]; int length=0; while((length = is.read(buffer)) >0){ os.write(buffer); Thread.sleep(20); } is.close(); os.close(); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } return b; } }