import org.im4java.process.ProcessStarter; //导入依赖的package包/类
/**
 * Initializate attachments and thumbnailer
 *
 * @param savePath main folder
 * @param IMpath
 * @throws Error 
 */
public AttachmentProvider(final String savePath, final String IMpath) throws Error {
	
	ProcessStarter.setGlobalSearchPath(IMpath);
	
	attachmentDir = new File(savePath);
	attachmentDir.mkdir();
	
       List<Group> boards = StorageManager.groups.getAll();
		for (Group g : boards){
			File grDir = new File(attachmentDir, g.getName());
			grDir.mkdir();
			File gi = new File(grDir, Atype.img.toString());
			gi.mkdir();
			File gt = new File(grDir, Atype.thm.toString());
			gt.mkdir();
			if (! gi.exists() || ! gt.exists())
				throw new Error("Attachment directory "+grDir.getAbsolutePath()+"does not exist");
		}
}
 

import org.im4java.process.ProcessStarter; //导入依赖的package包/类
@Before
public void setGloblePath() {

	String osName = System.getProperty("os.name").toLowerCase();

	if (osName.indexOf("win") >= 0) { // linux下不要设置此值，不然会报错

		ProcessStarter.setGlobalSearchPath(GLOBLE_PATH);

	}

}
 

import org.im4java.process.ProcessStarter; //导入依赖的package包/类
/**
 * This method should be invoked first of all before using
 * {@link ImgMagickUtils}.
 * 
 * It just tells the Im4Java wrapper where ImageMagick is installed on disk.
 * 
 * @param path
 *            The absolute path pointing to the root installation dir of
 *            ImageMagick. E.g. "C:\Development\ImageMagick". If it is null,
 *            it does not exist, or it is not a directory, nothing happens
 *            but the path is not set, and this tool will start throwing
 *            errors.
 */
public static void imageMagickPath(String path) {
	FileHandle dir = new FileHandle(path);
	if (path == null || !dir.exists() || !dir.isDirectory()) {
		System.err
				.println("[ImgMagickUtils] "
						+ path
						+ " is not a valid installation path for ImageMagick. ImgMagickUtils will not work properly. Exceptions may be thrown.");
		return;
	}
	ProcessStarter.setGlobalSearchPath(path);
}