当我尝试在我的JSP页面中显示中文字符时，它将显示垃圾字符。
我做错什么了？
我将以下行添加到了我的JSP的顶部，即使现在，问题仍未得到解决：
<%@page contentType="text/html;charset=UTF-8" pageEncoding="UTF-8"%> <%@ page import="java.util.*"%> <%@ page import="com.hp.sales.om.workflow.c2c.config.model.Organization"%> <%@ page import="com.hp.sales.om.workflow.c2c.config.model.ClassificationL1"%> <%@ page import="com.hp.sales.om.workflow.c2c.config.model.ClassificationL2"%> <%@ page import="com.hp.sales.om.workflow.c2c.config.model.TaskConfig"%> <script type="text/javascript" language="javascript" src="/integration/r5/hpr/js/jquery-1.3.2.js"></script> <script language="JavaScript"> //Javascript code here... </script> <% String taskId = (String) request.getAttribute("taskId"); if (taskId == null || taskId.trim().equals("")) { taskId = ""; %> <jsp:include page="/Header.jsp" /> <%@ taglib uri="http://xmlns.oracle.com/bpel/workflow/worklist-taglib.tld" prefix="worklist"%> <link rel="stylesheet" type="text/css" href="/integration/r5/hpr/css/homepages-v5.css" /> <% Map links = new LinkedHashMap(); links.put("Select Task", request.getContextPath() + "/SelectTask"); String disableCondition = ""; %> <worklist:navLinks linkMap="<%=links%>" styleClass="customBreadCrumbNav" separator=" > " prefixHTML="<strong>" suffixHTML="</strong>" disableConditionBasedOn="<%=disableCondition%>" /> <!-- border table --> <TABLE WIDTH="100%" BORDER="0"> <TR> <TD> <TABLE WIDTH="100%" BORDER="1"> <TR> <TD> <% } else { %> <html> <head> <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <META http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Select Task</title> </head> <body> <% } %> <br /> <form STYLE="display: inline;" method="POST" name="SelectTask" action="<%=request.getContextPath()%>/SelectTask"> <input type="hidden" name="method" id="method" value='' /> <input type="hidden" name="method" id="method" value='' /> <input type="hidden" name="taskId" id="taskId" value='<%=taskId%>' /> <!-- jQuery Ajax stuff for new way of create task, page not be refresh when choose organization --> <script type="text/javascript"> var servletContextPath = <%=request.getContextPath()%> ";" $(document) .ready( function() { $(window).load(function() { $.ajax({ url : servletContextPath + "/OrganizationLoadServlet", cache : false, beforeSend : function() { //alert(this.url == 'myUrl'); //timeout setting 30second ajax_timeout = setTimeout( function() { //alert('Request is taking a long time.'); }, 30000); // }, success : function( xmlResponse) { var count = 0; $(xmlResponse) .find('ITEMS') .each(function() { count++; }); if (count == 1) { $(xmlResponse).find('ITEMS') .each(function() { }); $.ajax({ type : "GET", url : servletContextPath + "/OrganizationProcessHandler", data : { orgId : $params }, cache : false, beforeSend : function() { ajax_timeout2 = setTimeout( function() { }, 30000); }, success : function(xmlResponse) { $(xmlResponse).find('ITEMS') .each(function() { }); //timeout calling if (ajax_timeout2) { clearTimeout(ajax_timeout2); } } }); } else { $(xmlResponse).find('ITEMS') .each(function() { }); } //timeout calling if (ajax_timeout) { clearTimeout(ajax_timeout); } // }, complete : function() { //alert(this.async == true); } }); }); //Business Process choicebox $("#orgId").change(function() { $.ajax({ type : "GET", url : servletContextPath + "/OrganizationProcessHandler", data : { orgId : $params }, cache : false, beforeSend : function() { //alert(this.url == 'myUrl'); //timeout setting 30second ajax_timeout = setTimeout( function() { //alert('Request is taking a long time.'); }, 30000); // }, success : function(xmlResponse) { $(xmlResponse).find('ITEMS') .each(function() { }); //timeout calling if (ajax_timeout) { clearTimeout(ajax_timeout); } // }, complete : function() { //alert(this.async == true); } }); }); //Task Group handler $("#processId").change(function() { if ($processId.length != 0) { $.ajax({ type : "POST", url : servletContextPath + "/TaskGroupsForOrgAndProcessHandler", data : { orgId : $orgId, processId : $processId }, cache : false, beforeSend : function() { //alert(this.url == 'myUrl'); //timeout setting 30second ajax_timeout = setTimeout( function() { //alert('Request is taking a long time.'); }, 30000); // }, success : function(xmlResponse) { $(xmlResponse).find('ITEMS') .each(function() { //alert("Task Group === "+valTxt); $('<option value="' + valTxt + '">' + labelTxt + '</option>') .appendTo("#taskGrpId"); }); //timeout calling if (ajax_timeout) { clearTimeout(ajax_timeout); } // }, complete : function() { //alert(this.async == true); } }); } }); //Task handler $("#taskGrpId").change(function() { if ($taskGrpId.length != 0) { $.ajax({ type : "POST", url : servletContextPath + "/TaskConfigsHandler", data : { orgId : $orgId, processId : $processId, taskGrpId : $taskGrpId }, cache : false, beforeSend : function() { ajax_timeout = setTimeout( function() { //alert('Request is taking a long time.'); }, 30000); // }, success : function( xmlResponse) { $(xmlResponse).find('ITEMS') .each(function() { }); //timeout calling if (ajax_timeout) { clearTimeout(ajax_timeout); } // }, complete : function() { //alert(this.async == true); } }); } }); }); </script> <!-- endless --> <!-- Layer for during do submition --> <script type="text/javascript"> $(document) .ready( function() { $("#Save").click( function() { var taskConfigId = document .getElementById("taskConfigId").value; if (taskConfigId == null || taskConfigId == '' || taskConfigId == -4 || taskConfigId.length == 0) { alert('Please select task'); } else { getBackToTaskCreationForm(); //Get the screen height and width var maskHeight = $(document).height(); var maskWidth = $(window).width(); //alert("taskConfigId== " +taskConfigId); //Set heigth and width to mask to fill up the whole screen $('#mask').css({ 'width' : maskWidth, 'height' : maskHeight }); //transition effect } }); }); </script> <style>
代码在下面继续：
<!-- endless --> <table width="100%" border="0" class="HeaderPane" cellpadding=0 cellspacing=0 height="44" bordercolor="#000000"> <tr width="100%"> <td width="100%" class="customContentText"><strong>Organization:</strong> <select id="orgId" name="orgId"> <option VALUE='-1'>------------ Select Organization ------------</option> </select></td> </tr> <tr width="100%"> <td width="100%" class="customContentText"> <p id="loading" style="margin-left: 80px;"> <img src="/integration/r5/hpr/images/ajax-loader.gif" alt="loading" /> <br />Please wait.... </p> <p id="done"></p> <p id="warning" style="margin-left: 80px;"> <img src="img/warnsign.gif" alt="warning" width="16" height="16" /> <br />Your request has timed out. Please try again. If this condition continues, please contact your administrator. </p> <br /> </td> </tr> <tr width="100%"> <td width="100%" class="customContentText"> <table width="100%" align="center" class="HeaderPane" id="table1"> ------- </table> </td> </form> </table> <!-- Mask to cover the whole screen --> <div id="mask"> <center> <img src="/integration/r5/hpr/images/ajax-loader.gif" alt="loading" /> <br /> <font color="White" size="4"> Please wait....</font> </center> </div> <% if (taskId == null || taskId.trim().equals("")) { %> </TD> </TR> </TABLE> </TD> </TR> </TABLE> <jsp:include page="/Footer.jsp" /> <% } else { %> </body> </html> <% } %>
这是我的web.xml文件：
<?xml version = '1.0' encoding = 'GBK'?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns /javaee/web-app_2_5.xsd" version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"> </web-app>
Servlet：
public class OrganizationLoadServlet extends HttpServlet { private static Logger log = Logger.getLogger(OrganizationLoadServlet.class); public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { HttpSession session = request.getSession(); Organization[] orgs = (Organization[])session.getAttribute(WorklistappConstants.SESS_ATTR_PREFS_ORGANIZATIONS); if (orgs == null) { orgs = getFilteredOrgs(request); session.setAttribute(WorklistappConstants.SESS_ATTR_PREFS_ORGANIZATIONS, orgs); } log.info("Before: " + response.getCharacterEncoding());//Here I am getting "iso-8859-1" StringBuffer sb = new StringBuffer(); String dislayName = null; for (int i = 0; i < orgs.length; i++) { Organization org = orgs[i]; dislayName = org.getOrgDisplayName(); sb.append("<ITEMS>"); sb.append("<LABEL><![CDATA[" + dislayName + "]]></LABEL>"); sb.append("<VALUE><![CDATA[" + org.getOrgId() + "]]></VALUE>"); sb.append("</ITEMS>"); } response.setContentType("text/xml"); response.setHeader("Cache-Control", "no-cache"); response.getWriter().write("<?xml version=\"1.0\" encoding=\"iso-8859-1\"?><ITEM>" + sb.toString() + "</ITEM>"); log.info("After: " + response.getCharacterEncoding());//Here I am getting "iso-8859-1" } public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { this.doGet(request, response); } private Organization[] getFilteredOrgs(HttpServletRequest request) { //code return orgs; } private Organization[] filterOrganizationsByUserOrgs(Organization[] orgs, List<Long> userOrgIdList) { //code return filteredOrgs; } private List<Long> getUserOrgIdList(String userId) throws Exception { //code return userOrgIdList; } private String getUserID(HttpServletRequest request) throws IOException { //code return wfCtx.getUser(); } }
请参阅Servlet类中的注释。如果更改iso-8859-1为utf-8，则无法访问该应用程序。
iso-8859-1
utf-8
为什么会发生此问题？
在这里，问题出在CDATA。在Servlet中，我们用于iso-8859-1以xml格式发送xml响应。当我们尝试使用时UTF-8，不会生成xml格式的响应。因此，我们没有将servlet的xml响应发送到jsp，而是将响应以html格式发送并在jsp页面上显示为html响应。这有助于解决我的问题。
CDATA
UTF-8
sb.append("<option value="+org.getOrgId()+">"+dislayName+"</option>"); response.setContentType("text/html;charset=UTF-8"); response.setHeader("Cache-Control", "no-cache"); response.getWriter().write(sb.toString());
$('#orgId').html("<option value=\'-1\'>------------ Select Organization ------------</option>"+xmlResponse);
