Java实现的图片上传工具类完整实例
本文实例讲述了Java实现的图片上传工具类。分享给大家供大家参考，具体如下：
packagecom.gcloud.common;
importjavax.imageio.ImageIO;
importjava.awt.image.BufferedImage;
importjava.io.*;
/**
*图片上传工具类
*Createdbycharlinon2017/9/10.
*/
publicclassUploadImageUtil{
privateStringfileType;
privateLongmaxSize;
privateLongwidth;
privateLongheight;
publicUploadImageUtil(){}
publicUploadImageUtil(StringfileType,LongmaxSize,Longwidth,Longheight){
this.fileType=fileType;
this.maxSize=maxSize;
this.width=width;
this.height=height;
}
/**
*检查上传图像大小
*
*@paramupload
*@paramuploadFileName
*@paramuploadContentType
*@return
*/
publicStringcheckUploadImage(Fileupload,StringuploadFileName,StringuploadContentType){
try{
if(fileType!=null){
String[]fileTypes=fileType.split(",");
intcount=0;
for(inti=0;iwidth||h>height){
return"上传照片宽度和高度不符合要求";
}
if(upload.length()>maxSize){
return"上传照片过大";
}
}catch(IOExceptione){
e.printStackTrace();
}
returnnull;
}
/**
*图片上传
*
*@paramupload
*@paramuploadFileName
*@parampath
*@return
*@throwsException
*/
publicvoiduploadImage(Fileupload,StringuploadFileName,Stringpath)throwsException{
InputStreamis=null;
OutputStreamos=null;
try{
is=newFileInputStream(upload);
Filef=newFile(path);
if(!f.exists())f.mkdirs();
os=newFileOutputStream(path+"/"+uploadFileName);
bytebuffer[]=newbyte[1024];
intcount=0;
intflag=0;
while((count=is.read(buffer))>0){
os.write(buffer,0,count);
}
}catch(FileNotFoundExceptione){
}catch(IOExceptione){
Filef=newFile(path+"/"+uploadFileName);
if(f.exists()){
f.delete();
}
}finally{
try{
os.close();
is.close();
}catch(IOExceptionioe){
}
}
}
/**
*清除文件
*@parampath
*/
publicvoidclear(Stringpath){
Filefile=newFile(path);
if(file.isFile()&&file.exists()){
file.delete();
}
}
publicStringgetFileType(){
returnfileType;
}
publicvoidsetFileType(StringfileType){
this.fileType=fileType;
}
publicLonggetMaxSize(){
returnmaxSize;
}
publicvoidsetMaxSize(LongmaxSize){
this.maxSize=maxSize;
}
publicLonggetWidth(){
returnwidth;
}
publicvoidsetWidth(Longwidth){
this.width=width;
}
publicLonggetHeight(){
returnheight;
}
publicvoidsetHeight(Longheight){
this.height=height;
}
}
更多java相关内容感兴趣的读者可查看本站专题：《Java图片操作技巧汇总》、《java日期与时间操作技巧汇总》、《Java操作DOM节点技巧总结》、《Java文件与目录操作技巧汇总》及《Java数据结构与算法教程》。
希望本文所述对大家java程序设计有所帮助。