本文共 4784 字，大约阅读时间需要 15 分钟。
1，本地上传代码
/**
* 图片上传
*
* @param avatarImgPath
* @return
*/
private String uploadImgToServer(String avatarImgPath) {
MultipartEntityBuilder builders = MultipartEntityBuilder.create();
FileBody imgage = new FileBody(new File(avatarImgPath));
builders.addPart("img1", imgage);
HttpEntity reqEntitys = builders.build();
String results = HttpClientPostUtils
.postMultiPart("http://192.168.0.221:8080/uploadweb/imgUpload/taskExecuteImg", reqEntitys);
return results;
}
public static String postMultiPart(String url,HttpEntity reqEntity){
CloseableHttpClient httpclient = HttpClients.createDefault();
try{
HttpPost method = new HttpPost(url);
// MultipartEntity reqEntity = new MultipartEntity();
method.setEntity(reqEntity);
CloseableHttpResponse response = httpclient.execute(method);
try{
//HttpResponse response=httpClient.execute(method);
int statusCode = response.getStatusLine().getStatusCode();
if(statusCode == HttpStatus.SC_OK){
String body=EntityUtils.toString(response.getEntity());
return body;
}}finally{
response.close();
}
}catch(Exception e){
e.printStackTrace();
}finally{
try {
httpclient.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
return null;
}2，服务端上图片处理代码
/**
* 保存图片到本地
*
* @param isDefaultSuffix
* 是否使用默认后缀名
* @param path
* 图片相对路径
* @param type
* 图片类型
* @param request
* @param response
* @return
*/
private String saveImgByType(boolean isDefaultSuffix, String path, String type, MultipartHttpServletRequest request,
HttpServletResponse response) {
//if (this.isUploadBlank(request)) {
//logger.error("upload" + type + " img is null------上传文件为空");
//return "";
//}
logger.info("upload" + type + " img start path: " + path);
Iterator itr = request.getFileNames();
MultipartFile mpf = null;
while (itr.hasNext()) {
try {
mpf = request.getFile(itr.next());
if(mpf.isEmpty()){
logger.error("upload" + type + " img is null------上传文件为空");
return null;
}
//
int imgSzie = mpf.getInputStream().available();
// 获取文件名
String fileName = mpf.getOriginalFilename();
if (StringUtils.isBlank(fileName)) {
logger.error("文件名为空");
return null;
}
// 文件后缀
String suffix = ".png";
if(!isDefaultSuffix){
suffix = fileName.substring(fileName.lastIndexOf("."));
}
if (mpf.getSize() / 1000 <= 30000 && mpf.getSize() == imgSzie) {
// 图片相对路径
String imgPath = path;
if (StringUtils.isBlank(imgPath)) {
imgPath = "files" + File.separator + getImagePath(type) + suffix; // 获得目录下的相对路径
}
// 图片绝对路径
String originalName = MyFileUtil.FILE_PATH + File.separator + imgPath;
// 保存图片
MyFileUtil.saveInputStreamToFile(mpf.getInputStream(), originalName);
// 只针对任务和任务执行的图片进行压缩
if (originalName.contains(File.separator + IMG_TYPE_TASK + File.separator)
|| originalName.contains(File.separator + IMG_TYPE_TASKEXE + File.separator)) {
// 获取缩略图路径
String smallImgPath = getSmallImgName(originalName);
if (StringUtils.isNotBlank(smallImgPath)) {
// 临时存储变量
String tempPath = MyFileUtil.FILE_PATH + File.separator + "temp" + File.separator
+ System.currentTimeMillis() + ".png";
String parentPath = MyFileUtil.FILE_PATH + File.separator + "temp" + File.separator;
File parentFile = new File(parentPath);
if (!(parentFile.exists() && parentFile.isDirectory())) {
parentFile.mkdir();
}
// 按比例缩放(放大缩小)false为缩小，true为放大
ImageUtils.scale(originalName, tempPath, 4, false);
ImageHelper.cutCenterImage(tempPath, smallImgPath, ImageUtils.SMALL_IMG_WIDTH,
ImageUtils.SMALL_IMG_HEIGHT);
new File(tempPath).deleteOnExit();
}
}
logger.info(imgPath + " 图片上传成功");
return imgPath;
} else {
if (mpf.getSize() != imgSzie) {
logger.error("#######图片上传失败，服务器获取到图片大小(字节): " + mpf.getSize() + ", 上传图片实际大小(字节): " + imgSzie);
} else {
logger.error("单张照片不得超过30M");
}
return null;
}
} catch (IOException e) {
logger.error(e.getMessage());
return null;
}
}
logger.error("没有上传的图片");
return null;
}
/**
* 获取缩略图路径
*
* @param originalName
* @return
*/
private String getSmallImgName(String originalName) {
if (StringUtils.isBlank(originalName))
return null;
int index = originalName.lastIndexOf(".");
String smallPath = "";
if (index != -1) {
String prefix = originalName.substring(0, index);
String suffix = originalName.substring(index + 1);
smallPath = prefix + "_" + ImageUtils.SMALL_IMG_WIDTH + "x" + ImageUtils.SMALL_IMG_HEIGHT + "." + suffix;
}
return smallPath;
}
/**
* @Title: saveInputStreamToFile
* @Description: 输入流拷贝到文件中
* @param @param in
* @param @param destfilePath
* @return void
* @throws
*/
public static void saveInputStreamToFile(InputStream in, String destfilePath) {
try {
synchronized(MyFileUtil.class){
byte[] gif = IOUtils.toByteArray(in);
FileUtils.writeByteArrayToFile(new File(destfilePath), gif);
IOUtils.closeQuietly(in);
logger.info("save pic:" + destfilePath + " success, img size: " + gif.length / 1000);
}
} catch (Exception e) {
logger.error(e.getMessage());
}
}
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