Java tutorial
/* * Copyright 2008, 2012 Pedro Agull Soliveres. * * This file is part of DirectJNgine. * * DirectJNgine is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 3 of the License. * * Commercial use is permitted to the extent that the code/component(s) * do NOT become part of another Open Source or Commercially developed * licensed development library or toolkit without explicit permission. * * DirectJNgine is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with DirectJNgine. If not, see <http://www.gnu.org/licenses/>. * * This software uses the ExtJs library (http://extjs.com), which is * distributed under the GPL v3 license (see http://extjs.com/license). */ package com.softwarementors.extjs.djn.demo; import java.io.IOException; import java.util.Map; import org.apache.commons.fileupload.FileItem; import org.apache.commons.io.IOUtils; import com.softwarementors.extjs.djn.StringBuilderUtils; import com.softwarementors.extjs.djn.config.annotations.DirectFormPostMethod; public class FormPostDemo { public static class Result { public String fileContents = ""; public String fieldNamesAndValues = ""; public boolean success; } @DirectFormPostMethod public Result djnform_handleSubmit(Map<String, String> formParameters, Map<String, FileItem> fileFields) throws IOException { assert formParameters != null; assert fileFields != null; Result result = new Result(); StringBuilder fieldNamesAndValues = new StringBuilder("<p>Non file fields:</p>"); for (Map.Entry<String, String> entry : formParameters.entrySet()) { String fieldName = entry.getKey(); String value = entry.getValue(); StringBuilderUtils.appendAll(fieldNamesAndValues, "<b>", fieldName, "</b>='", value, "'<br>"); } fieldNamesAndValues.append("<p></p><p>FILE fields:</p>"); for (Map.Entry<String, FileItem> entry : fileFields.entrySet()) { String fieldName = entry.getKey(); FileItem fileItem = entry.getValue(); result.fileContents = IOUtils.toString(fileItem.getInputStream()); fileItem.getInputStream().close(); StringBuilderUtils.appendAll(fieldNamesAndValues, "<b>", fieldName, "</b>:"); boolean fileChosen = !fileItem.getName().equals(""); if (fileChosen) { StringBuilderUtils.appendAll(fieldNamesAndValues, " file=", fileItem.getName(), " (size=", Long.toString(fileItem.getSize()), ")"); } else { fieldNamesAndValues.append(" --no file was chosen--"); } } result.fieldNamesAndValues = fieldNamesAndValues.toString(); result.success = true; return result; } }