getRemoteImage.jsp
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<%@ page language="java" pageEncoding="utf-8"%>
<%@ page import="java.io.*"%>
<%@ page import="java.net.*"%>
<%@ page import="java.util.*"%>
<%@ page import="ueditor.Uploader" %>
<%
request.setCharacterEncoding("utf-8");
response.setCharacterEncoding("utf-8");
String url = request.getParameter("upfile");
String state = "远程图片抓取成功！";
String filePath = "upload";
String[] arr = url.split("ue_separate_ue");
String[] outSrc = new String[arr.length];
for(int i=0;i<arr.length;i++){
//保存文件路径
String str = application.getRealPath(request.getServletPath());
File f = new File(str);
String savePath = f.getParent() + "/"+filePath;
//格式验证
String type = getFileType(arr[i]);
if(type.equals("")){
state = "图片类型不正确！";
continue;
}
String saveName = Long.toString(new Date().getTime())+type;
//大小验证
HttpURLConnection.setFollowRedirects(false);
HttpURLConnection conn = (HttpURLConnection) new URL(arr[i]).openConnection();
if(conn.getContentType().indexOf("image")==-1){
state = "请求地址头不正确";
continue;
}
if(conn.getResponseCode() != 200){
state = "请求地址不存在！";
continue;
}
File dir = new File(savePath);
if (!dir.exists()) {
dir.mkdirs();
}
File savetoFile = new File(savePath +"/"+ saveName);
outSrc[i]=filePath +"/"+ saveName;
try {
InputStream is = conn.getInputStream();
OutputStream os = new FileOutputStream(savetoFile);
int b;
while ((b = is.read()) != -1) {
os.write(b);
}
os.close();
is.close();
// 这里处理 inputStream
} catch (Exception e) {
e.printStackTrace();
System.err.println("页面无法访问");
}
}
String outstr = "";
for(int i=0;i<outSrc.length;i++){
outstr+=outSrc[i]+"ue_separate_ue";
}
outstr = outstr.substring(0,outstr.lastIndexOf("ue_separate_ue"));
response.getWriter().print("{'url':'" + outstr + "','tip':'"+state+"','srcUrl':'" + url + "'}" );
%>
<%!
public String getFileType(String fileName){
String[] fileType = {".gif" , ".png" , ".jpg" , ".jpeg" , ".bmp"};
Iterator<String> type = Arrays.asList(fileType).iterator();
while(type.hasNext()){
String t = type.next();
if(fileName.endsWith(t)){
return t;
}
}
return "";
}
%>