<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@page import="sun.misc.BASE64Decoder"%>
<%@page import="java.io.*"%>
<%@page import="org.springframework.web.util.UriComponents"%>
<%@page import="java.net.URLDecoder"%>
<%!
// 本文件：/receive.jsp
// 图片存放路径
String photoPath = "D:/blog/upload/photo/";
File photoPathFile = new File(photoPath);
// references:
private boolean saveImageToDisk(byte[] data,String imageName) throws IOException{
int len = data.length;
//
// 写入到文件
FileOutputStream outputStream = new FileOutputStream(new File(photoPathFile,imageName));
outputStream.write(data);
outputStream.flush();
outputStream.close();
//
return true;
}
private byte[] decode(String imageData) throws IOException{
BASE64Decoder decoder = new BASE64Decoder();
byte[] data = decoder.decodeBuffer(imageData);
for(int i=0;i<data.length;++i)
{
if(data[i]<0)
{
//调整异常数据
data[i]+=256;
}
}
//
return data;
}
%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"http://www.jb51.net/";
%>
<%
//如果是IE，那么需要设置为text/html,否则会弹框下载
//response.setContentType("text/html;charset=UTF-8");
response.setContentType("application/json;charset=UTF-8");
//
String imageName = request.getParameter("imagename");
String imageData = request.getParameter("imagedata");
int success = 0;
String message = "";
if(null == imageData || imageData.length() < 100){
// 数据太短，明显不合理
message = "上传失败,数据太短或不存在";
} else {
// 去除开头不合理的数据
imageData = imageData.substring(30);
imageData = URLDecoder.decode(imageData,"UTF-8");
//System.out.println(imageData);
byte[] data = decode(imageData);
int len = data.length;
int len2 = imageData.length();
if(null == imageName || imageName.length() < 1){
imageName = System.currentTimeMillis()+".png";
}
saveImageToDisk(data,imageName);
//
success = 1;
message = "上传成功,参数长度:"+len2+"字符，解析文件大小:"+len+"字节";
}
// 后台打印
System.out.println("message="+message);
%>
{
"message": "<%=message %>",
"success": <%=success %>
}