1、文件的操作，讀寫(xiě)文件，解決亂碼問(wèn)題

讀文件

InputStreamReader isr = new InputStreamReader(new FileInputStream(new File(path)), "UTF-8");BufferedReader reader = new BufferedReader(isr);String s;while ((s = reader.readLine()) != null) {content += s + "/n";}reader.close();

寫(xiě)文件

Writer writer = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(newFile1.getAbsolutePath().toString()), "UTF-8"));writer.write(content);writer.close();

2、struts2常用標(biāo)簽

單選框：<s:radio name="Gender" list="#{'男':'男','女':'女'}" listKey="key" listValue="value" value="'男'" />

時(shí)間格式化：<s:date name="publishTime" format="yyyy年MM月dd日 HH:mm:ss" />

下拉框：<s:select list="#request.role" name="role1" value="roleName" key="id" headerKey="0" headerValue="清選擇角色"></s:select>

3、Ajax上傳文件

ajax上傳文件主要是使用了ajaxfileupload.js插件，ajax代碼如下所示：

HTMl代碼：

<input id="fileToUpload" type="file" size="20" name="myFile" class="input"><button type="button" id="buttonUpload" data-dismiss="modal" class="btn btn-
　js代碼：
$("#buttonUpload").click(function() {//驗(yàn)證圖片格式 var format = $("#fileToUpload").val();var type = format.substring(format.lastIndexOf(".") + 1, format.length).toLowerCase();onsole.info(format);console.info(type);if (type != "jpg" && type != "jpeg" && type != "bmp" && type != "gif" && type != "png") {alert("請(qǐng)上傳正確的圖片格式");return;}$.ajaxFileUpload({url : 'notice_AddImage.action',//處理圖片腳本ecureuri : false,fileElementId : 'fileToUpload',//file控件iddataType : 'text',success : function(data) {$("#dd").html(data);var value = $("#dd pre").html();if (value == "undefined" || value == null) {value = data;}console.info("dd:" + value);$("#btn_image").val(value);console.info("image:" + $("#btn_image").val());$("#toolt
　　
java代碼：
 1 // myFile屬性用來(lái)封裝上傳的文件 2     private File myFile; 3  4     // myFileContentType屬性用來(lái)封裝上傳文件的類(lèi)型 5     private String myFileContentType; 6  7     // myFileFileName屬性用來(lái)封裝上傳文件的文件名 8     private String myFileFileName; 9     InputStream is;10         try {11             is = new FileInputStream(myFile);12             // 設(shè)置上傳文件目錄13             String uploadPath = TemplateUtils.BASEPATH + "http://upload";14             // 重命名文件15             String fileName = StringUtils.getUUID() + this.getMyFileFileName().substring(myFileFileName.lastIndexOf("."), myFileFileName.length());16             // 設(shè)置目標(biāo)文件17             File toFile = new File(uploadPath, fileName);18             // 創(chuàng)建一個(gè)輸出流19             OutputStream os = new FileOutputStream(toFile);20             // 設(shè)置緩存21             byte[] buffer = new byte[1024];22             int length = 0;23             // 讀取myFile文件輸出到toFile文件中24             while ((length = is.read(buffer)) > 0) {25                 os.write(buffer, 0, length);26             }27             // 關(guān)閉輸入流28             is.close();29             // 關(guān)閉輸出流30             os.close();