flex图片剪切示例--预览、保存到本地、保存到服务器(附源码)

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java代码：

package ?com;


import ?java.io.DataOutputStream;
?java.io.File;
?java.io.FileOutputStream;
?java.io.IOException;
?java.io.InputStream;

?javax.servlet.ServletException;
?javax.servlet.http.HttpServlet;
?javax.servlet.http.HttpServletRequest;
?javax.servlet.http.HttpServletResponse;

/**
?*?Servlet?implementation?class?FileManagerSaveFileServlet
? */ public ? class ?FileManagerSaveFileServlet? extends ?HttpServlet?{
?
? private int ?len = 0 ; // 处理流 ?mm 重命名 ?String?fileName "" 文件原名 ?String?extName 文件扩展名 ?String?tempFileName 文件名加扩展名 ?
? void ?doGet(HttpServletRequest?request,?HttpServletResponse?response)????
? throws ?ServletException,?IOException?{????
?processRequest(request,?response);????
?}????
???
? ?doPost(HttpServletRequest?request,?HttpServletResponse?response)????
?? ?processRequest(HttpServletRequest?request,?HttpServletResponse?response)

???? " utf-8 );
??String?realPath request.getParameter( realPath );
?? System.out.println("FMSFS-->realPath:"+realPath); ??response.setContentType( application/octet-stream );
??InputStream?is? ?request.getInputStream();
?? try ?{
?? ?size? ;
?? byte []?tmp? new [ 100000 ];
??
??tempFileName realPath.substring(realPath.lastIndexOf( ) + 1 ); 切割获得文件名加扩展名 ??fileName tempFileName.substring( ,tempFileName.lastIndexOf( . )); 切割获得文件名
?? 确保获得真实的文件名如：1(1)可以获得真实为1, ?? if (fileName.indexOf( ( !=- ){
???fileName fileName.substring( ));
??}
??
??extName tempFileName.substring(tempFileName.lastIndexOf( 切割获得扩展名
??
?? 调用递归方法 += reNameFile(realPath.substring( ),fileName,extName);
?? ?创建一个文件夹用来保存发过来的图片； ??File?f? ?File(realPath.substring( fileName extName);
??DataOutputStream?dos? ?DataOutputStream( ?FileOutputStream(f));
?? while ?((len? ?is.read(tmp))? != - )?{
??dos.write(tmp,? ?len;
??}
??dos.flush();
??dos.close();
??}? catch ?(IOException?e)?{
??e.printStackTrace();
??}
?}
?
? 递归来重命名文件名 ?String?str ;
? ?String?reNameFile(String?realPath,String?filename,String?extName){
??File?file? ?File(realPath filename extName);
??str ;
???????? (file.exists()){
?????????mm ++ ;
?????????str _ mm;
?????????reNameFile(realPath,fileName str,extName);
????????} else {
????????? (mm ){
??????str mm;
?????????}
????????}
?? return ?str;
?}
}