我有简单的形式，点击accpet按钮，而不是POST请求导致GET requet的类型。这导致页面显示两次，并且当您再次单击“接受”按钮时，表格会生成POST请求。这主要发生在IE8和Chrome上。
当前配置：
<%@taglib prefix="form" uri="http://www.springframework.org/tags/form"%>
<%@taglib prefix="spring" uri="http://www.springframework.org/tags"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jstl/core_rt"%>
<%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions" %>
<title><spring:theme code="company"/><spring:theme code="title.companySetup.terms&conditions"></spring:theme></title>
<%-- <title><spring:message code="userRegistration.addNewEmployer.title"></spring:message></title> --%>
<!-- CONTENT START -->
<div class="canvasWrapper">
<div class="canvas" role="main">
<div class="contentWrapper clearfix">
<c:choose>
<c:when test="${whitelabellingfolder == 'ABC'}">
<h1>Welcome to </h1>
</c:when>
<c:when test="${whitelabellingfolder == 'PQR'}">
<h1 style="color:#6a2c91">Welcome to <i style="color:#6a2c91">BOND</i></h1>
</c:when>
<c:when test="${whitelabellingfolder == 'XYZ'}">
<h1>Welcome to </h1>
</c:when>
<c:when test="${whitelabellingfolder == 'LMN'}">
<h1>Welcome to </h1>
</c:when>
<c:when test="${whitelabellingfolder == 'QWE'}">
<h1>Welcome to </h1>
</c:when>
<c:when test="${whitelabellingfolder == 'POI'}">
<h1>Welcome to </h1>
</c:when>
<c:otherwise>
<h1>Welcome to Nothing</h1>
</c:otherwise>
</c:choose>
<h2>Terms and Conditions</h2>
<spring:message code="${whitelabellingfolder}.termsAndContion.body"></spring:message>
<form:form method="Post" commandName="userForm" >
<form:errors path="*" cssClass="formError" element="div" />
<div class="ruler"></div>
<div class="navHolder clearfix">
<!-- <script type="text/javascript">
document.write('<div class="floatLeft"><input type="button" class="btnBlue" value="Print this page" onClick="window.print()"></div>');
</script> -->
<div class="floatRight"><input class="btnBlue" name="accpet" type="submit" value="Accept" /></div>
<div class="floatRight"><input class="btnBlue" name="decline" type="submit" value="Decline" /></div>
</div>
</form:form>
</div>
</div>
</div>
<!-- CONTENT END -->
<!-- FOOTER START -->
<div class="footerWrapper2">
<div class="footerCanvasWrapper">
<div class="footerCanvas">
</div>
<div class="footerLinks">
</div>
</div>
</div>
<!-- FOOTER END -->
控制器----
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestHeader;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.theme.SessionThemeResolver;
import org.springframework.web.util.WebUtils;
@Controller
@RequestMapping("/TNC.html")
public class TNCControllerAnn {
private String className = "TNCControllerAnn";
@Autowired
private AppService appService;
@RequestMapping(method = RequestMethod.GET)
public String formbacking(@RequestHeader(value="Accept") String accept,
@RequestHeader(value="Accept-Language") String acceptLanguage,
@RequestHeader(value="User-Agent", defaultValue="foo") String userAgent,HttpServletRequest request,
HttpServletResponse response) {
CMULogger.enter(className, "formBackingObject >> In the get method");
String employerID = request.getHeader(UIConstant.EMP_ID);
CMULogger.debug(className, " ** employerID: " + employerID);
request.getSession().setAttribute(UIConstant.SELECTED_MODULE, "tnc");
String requestURL = request.getRequestURL().toString();
if (!requestURL.endsWith("/")) {
requestURL = requestURL.concat("/");
}
request.getSession().setAttribute(GlobalConstants.REQUEST_URL, requestURL);
CMULogger.debug(className, " ** Request_URL: " + request.getSession().getAttribute(GlobalConstants.REQUEST_URL));
ServiceContext serviceContext = new ServiceContext();
UserContext userContext = new UserContext(employerID, "", "", "", "", "", "", "", "");
serviceContext.setUserContext(userContext);
RegistrationSetupAppResponse appResponse = null;
try {
appResponse = registrationAppService.getThemeChange(serviceContext);
} catch (ApplicationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
AdviserDTO adviserDTO = appResponse.getAdviserDTO();
String companyAgencyCode = adviserDTO.getCoLegalAgencyCode();
Boolean isBranded = adviserDTO.isBrandedAccessRequired();
String requestURI = "/";
if (!isBranded) {
companyAgencyCode = "sam";
} else {
requestURI = "/" + adviserDTO.getBrandingURL() + "/";
}
request.getSession().setAttribute(GlobalConstants.REQUEST_URI, requestURI);
request.getSession().setAttribute("whitelabellingfolder", companyAgencyCode);
WebUtils.setSessionAttribute(request, SessionThemeResolver.THEME_SESSION_ATTRIBUTE_NAME, companyAgencyCode);
CMULogger.exit(className, "formBackingObject");
return "termsnCondition";
}
@RequestMapping(method = RequestMethod.POST)
public String onSumbit(HttpServletRequest request, HttpServletResponse response){
CMULogger.enter(className, "onSubmit >> In the post method");
String redirectTo = GlobalConstants.REDIRECT;
if (request.getParameter("accpet") != null) {
String cnUserID = request.getHeader(UIConstant.CNUSER_ID);
String email = request.getHeader(UIConstant.EMAIL);
if ((email == null) || (cnUserID == null)) {
String message = "Mandatory Field email or cnUserID is missing";
CMULogger.error(className, "Exception in creating context", message);
// throw new ApplicationException(message);
}
ServiceContext conext = new ServiceContext();
UpdateTNCDTO updateTNCDTO = new UpdateTNCDTO();
UpdateTNCRequest updateTNCRequest = new UpdateTNCRequest();
updateTNCDTO.setCnUserID(cnUserID);
updateTNCDTO.setEmail(email);
updateTNCRequest.setUpdateTNCDTO(updateTNCDTO);
try {
CMULogger.error(className, "Error******Error**** Before updating DB");
registrationAppService.updateTNC(conext, updateTNCRequest);
CMULogger.error(className, "Error******Error**** AFter updating DB");
} catch (ApplicationException ae) {
CMULogger.error(className, "Error******Error**** Ocuured during updating DB");
/*errors.reject("", ae.getMessage());
try {
return showForm(request, errors, this.getFormView());
} catch (Exception e) {
CMULogger.error(className, e.getMessage());
}*/
}
CMULogger.debug(className, "******" + PropertyReader.getEnvBasedProperty(GlobalConstants.TNC_ACCEPTED_URL));
String requestURI = (String) request.getSession().getAttribute(GlobalConstants.REQUEST_URI);
redirectTo =
PropertyReader.getEnvBasedProperty(GlobalConstants.TNC_ACCEPTED_URL)
+ ((requestURI.equals("/")) ? "" : requestURI.substring(0, (requestURI.length() - 1)));
} else if (request.getParameter("decline") != null) {
CMULogger.debug(className, "User declined T&C");
StringBuilder strbuilder = new StringBuilder();
strbuilder.append(redirectTo);
strbuilder.append(PropertyReader.getEnvBasedProperty(GlobalConstants.LOGOFF_URL));
String requestURI = (String) request.getSession().getAttribute(GlobalConstants.REQUEST_URI);
strbuilder.append("?advisor=" + ((requestURI.equals("/")) ? "" : requestURI.substring(1, (requestURI.length() - 1))));
redirectTo = strbuilder.toString();
}
CMULogger.debug(className, "User is redirected to following url:" + redirectTo);
CMULogger.exit(className, "onSubmit");
//return "redirect:" + redirectTo;`enter code here`
return redirectTo;
}
public AppService getAppService() {
return appService;
}
public void setAppService(
AppService appService) {
this.appService = appService;
}
}