u07tfileformvalid.java

持久层hibernate技术使用的一个例子

package cn.hope.front.form.validation;

import java.util.Hashtable;

import javax.servlet.http.HttpServletRequest;

import org.apache.commons.validator.GenericValidator;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionMessage;
import org.apache.struts.action.ActionMessages;
import org.apache.struts.upload.FormFile;
import org.apache.struts.upload.MultipartRequestHandler;
import org.apache.struts.validator.DynaValidatorForm;

public class U07TFileFormValid {
	public static ActionMessages checkErrors(ActionForm form,
			HttpServletRequest request) {

		ActionMessages errors = new ActionMessages();
		DynaValidatorForm tFileForm = (DynaValidatorForm) form;
		try {
			String tft1Id = request.getParameter("tft1.tftId");
			if (GenericValidator.isBlankOrNull(tft1Id)) {
				errors.add("tft1.tftId", new ActionMessage(
						"errors.u07TFileForm.tft1.required"));
			}
			String tft2Id = request.getParameter("tft2.tft2Id");
			if (GenericValidator.isBlankOrNull(tft2Id)) {
				errors.add("tft2.tft2Id", new ActionMessage(
						"errors.u07TFileForm.tft2.required"));
			}
			MultipartRequestHandler mrh = tFileForm
					.getMultipartRequestHandler();
			Hashtable elements = mrh.getFileElements();
			FormFile file = (FormFile) elements.get("file");
			int size = file.getFileSize() / 1000;

			if (size <= 0) {
				errors.add("tFile.file", new ActionMessage(
						"errors.u07TFileForm.tFile.required"));
			} else {
				String fname = file.getFileName();
				if (!GenericValidator.maxLength(fname, 50)) {
					errors.add("tFile.file", new ActionMessage(
							"errors.u07TFileForm.tfName.max"));
				}
				if (size > 10) {
					errors.add("tFile.file", new ActionMessage(
							"errors.u07TFileForm.tFile.size"));
				}
				int i = fname.lastIndexOf(".");
				i += 1;
				String fileexc = fname.substring(i).toLowerCase();
				if (("gif|jpg|jpeg|bmp").indexOf(fileexc) < 0) {
					errors.add("tFile.file", new ActionMessage(
							"errors.u07TFileForm.tFile.type"));
				}
			}
			if (GenericValidator.isBlankOrNull(request
					.getParameter("tFile.tfIntro"))) {
				errors.add("tFile.tfIntro", new ActionMessage(
						"errors.u07TFileForm.tfIntro.required"));
			} else {
				if (!GenericValidator.maxLength(request
						.getParameter("tFile.tfIntro"), 5000)) {
					errors.add("tFile.tfIntro", new ActionMessage(
							"errors.u07TFileForm.tfIntro.max"));
				}
			}

		} catch (Exception e) {
			e.printStackTrace();
			errors.add(ActionMessages.GLOBAL_MESSAGE, new ActionMessage(
					"errors.u07exception"));
		}
		return errors;
	}
}