private static FileItem prepareFileItemFromInputStream(
PipelineContext pipelineContext, InputStream inputStream, int scope) {
// Get FileItem
final FileItem fileItem = prepareFileItem(pipelineContext, scope);
// Write to file
OutputStream os = null;
try {
os = fileItem.getOutputStream();
copyStream(inputStream, os);
} catch (IOException e) {
throw new OXFException(e);
} finally {
if (os != null) {
try {
os.close();
} catch (IOException e) {
throw new OXFException(e);
}
}
}
// Create file if it doesn't exist (necessary when the file size is 0)
final File storeLocation = ((DiskFileItem) fileItem).getStoreLocation();
try {
storeLocation.createNewFile();
} catch (IOException e) {
throw new OXFException(e);
}
return fileItem;
}
/**
* 接受并保存以base64格式上传的文件
*
* @param fieldName
*/
public void uploadBase64(String fieldName) {
String savePath = this.getFolder(this.savePath);
String base64Data = this.request.getParameter(fieldName);
this.fileName = this.getName("test.png");
this.url = savePath + "/" + this.fileName;
try {
File outFile = new File(this.getPhysicalPath(this.url));
OutputStream ro = new FileOutputStream(outFile);
byte[] b = Base64.decodeBase64(base64Data);
ro.write(b);
ro.flush();
ro.close();
this.state = this.errorInfo.get("SUCCESS");
} catch (Exception e) {
this.state = this.errorInfo.get("IO");
}
}
public static void copyStream(InputStream is, OutputStream os) throws IOException {
int count;
byte[] buffer = new byte[1024];
while ((count = is.read(buffer)) > 0) os.write(buffer, 0, count);
}