在项目中要用到jsp页面实现网页采集摄像头图像，并实现上传的功能，页面主要js调用的，所以可以使用多种语言php,asp等都可以使用，而且是跨浏览器的。

可以整合的到SSH项目中和struts1或者struts2项目中

使用方法1：

下载 printscreen4web-jsp.war(最下面有下载地址),然后放到tamcat目录webapp文件夹下面，启动tomcat，访问http://127.0.0.1:8080/printscreen4web-jsp/

主要调用文件 ：1.index.html.2avatar.jsp

String imagepath1="";

//编辑页面中包含 camera.swf 的 HTML 代码

public String renderHtml(String id,String basePath,String input)

{

String outinput="";

try {

outinput = URLDecoder.decode(input);

}catch(Exception e)

{

System.out.println("解码错误!");

}

String[] tmp_input=outinput.split("@");//input传递的类型和uid

//System.out.println(input+","+tmp_input.length);

String uc_api =URLEncoder.encode(basePath+"upload/avatar.jsp");

String urlCameraFlash = "camera.swf?nt=1&inajax=1&appid=1&input="+input+"&uploadSize=1000&ucapi="+uc_api;

urlCameraFlash = "";

return urlCameraFlash;

}

public String getFileExt(String fileName) {

// 下面取到的扩展名错误，只有三位，而如html的文件则有四位

// extName = fileName.substring(fileName.length() - 3, fileName.length()); //扩展名

int dotindex = fileName.lastIndexOf(".");

String extName = fileName.substring(dotindex, fileName.length());

extName = extName.toLowerCase(); //置为小写

return extName;

}

private byte[] getFlashDataDecode(String src)

{

char []s=src.toCharArray();

int len=s.length;

byte[] r = new byte[len / 2];

for (int i = 0; i < len; i = i + 2)

{

int k1 = s[i] - 48;

k1 -= k1 > 9 ? 7 : 0;

int k2 = s[i + 1] - 48;

k2 -= k2 > 9 ? 7 : 0;

r[i / 2] = (byte)(k1 << 4 | k2);

}

return r;

}

public boolean saveFile(String path,byte[]b){

try{

FileOutputStream fs = new FileOutputStream(path);

fs.write(b, 0, b.length);

fs.close();

return false;

}catch(Exception e){

return true;

}

}

%>

String uploadtype= request.getParameter("uploadtype");

//图片上传类型:头像,logo,图片分别对应参数:head,logo,pic没有传递，默认为PIC

if("".equals(uploadtype))

{

uploadtype="pic";

}

//最终裁剪好的图片存放位置

String uid=request.getParameter("uid");

imagepath1=uploadtype+"/"+uid+"_big.jpg";

String action= request.getParameter("a");

//String input=request.getParameter("input");

String path = request.getContextPath();

String infoFilePath="";

String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";

if(action==null){

%>

body{

margin: 0;

border: 0;

}

function updateavatar() {

var img1="";

if(window.opener.document.getElementById("imgpath1"))

{

window.opener.document.getElementById("imgpath1").value=img1;

window.opener.document.getElementById("showimg1").src="upload/"+img1;

}

window.close();

}

out.print(renderHtml("5",basePath,URLEncoder.encode(uploadtype+"@"+uid)));

%>

}else if("uploadavatar".equals(action)){//上传临时图片,可以自己实现

//System.out.println(action);

UploadUtil uploadUtil = new UploadUtil();

boolean isOk = uploadUtil.initParam(pageContext,request);

if (isOk == false)

{

System.out.println("页面出错：" + uploadUtil.getMsg());

return;

}

//上传附件

isOk = uploadUtil.uploadFile("");

if (isOk == false)

{

System.out.println("页面出错：" + uploadUtil.getMsg());

return;

}

Map map = uploadUtil.getUploadFiles();

if (map == null)

{

System.out.println("页面出错：上传附件失败");

}

if (map.size() == 0)

{

System.out.println("页面出错：没有上传附件");

return;

}

//获取附件文件名和存储文件路径

for (Iterator iter = map.keySet().iterator(); iter.hasNext();)

{

infoFilePath = (String) iter.next();

String infoFileName = (String) map.get(infoFilePath);

//infoFilePath=infoFilePath.substring(infoFilePath.lastIndexOf("\\")+1);

//System.out.println(infoFilePath);

//infoFilePath=infoFilePath.substring(infoFilePath.indexOf("webapps")+8);

infoFilePath=infoFilePath.replaceAll("\\\\", "/");

//System.out.println(basePath+"upload"+infoFilePath);

out.clear();

out.print(basePath+"upload"+infoFilePath);

}

}else if("rectavatar".equals(action)){//缩略图

String avatar1 = request.getParameter("avatar1");//大

String avatar2 = request.getParameter("avatar2");//中

String avatar3 = request.getParameter("avatar3");//小

String output ="";

try {

output = URLDecoder.decode(request.getParameter("input"));

}catch(Exception e)

{

System.out.println("解码错误!");

}

String[] tmp_input=output.split("@");//input传递的类型和uid

String pathff = request.getSession().getServletContext().getRealPath("/")+ "upload\\";

String imgfilepath=pathff+tmp_input[0];

imagepath1=imgfilepath+"/"+tmp_input[1]+"_big.jpg";

out.clear();

boolean a1=saveFile(imagepath1,getFlashDataDecode(avatar1));

if(a1){

out.print("<?xml version=\"1.0\" ?>");

}else{

out.print("<?xml version=\"1.0\" ?>");

}

}

%>