我有一个表单,我从该表单查询数据库,并将结果发布到另一个页面。然后我从查询结果中选择一条记录,它会将我带回到我进行查询的页面,以便我可以更新记录。
我单击更新,这会将我带回控制器并返回第一次调用查询的相同方法,但是请求的参数现在是“更新”,因此假设转到方法中的更新条件。好像我无法将页面重新提交到相同的 url 映射。
控制器
@RequestMapping(value="citizen_registration.htm", method = RequestMethod.POST)
public ModelAndView handleRequest(@Valid @ModelAttribute Citizens citizen,
BindingResult result, ModelMap m, Model model,
@RequestParam(value="user_request") String user_request) throws Exception {
try{
logger.debug("In Http method for CitizenRegistrationController - Punishment Registration");
logger.debug("User Request Is " + user_request);
if(result.hasErrors()){
//handle errors
// return new ModelAndView("citizen_registration");
}else{
//check if its a save or an update
if(user_request.equals("Save"))
//do save
else if (user_request.equals("Query"))
//do query
else if (user_request.equals("Update"))
//do update
}
}
错误日志
34789 [http-bio-8084-exec-3] DEBUG org.springframework.web.servlet.DispatcherServlet - Bound request context to thread: org.apache.catalina.connector.RequestFacade@2ba3ece5
34791 [http-bio-8084-exec-3] DEBUG org.springframework.web.servlet.DispatcherServlet - DispatcherServlet with name 'crimetrack' processing POST request for [/crimeTrack/getCitizen/citizen_registration.htm]
34792 [http-bio-8084-exec-3] DEBUG org.springframework.web.servlet.DispatcherServlet - Testing handler map [org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping@3a089b3] in DispatcherServlet with name 'crimetrack'
34792 [http-bio-8084-exec-3] DEBUG org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping - Looking up handler method for path /getCitizen/citizen_registration.htm
34796 [http-bio-8084-exec-3] DEBUG org.springframework.web.servlet.mvc.method.annotation.ExceptionHandlerExceptionResolver - Resolving exception from handler [null]: org.springframework.web.HttpRequestMethodNotSupportedException: Request method 'POST' not supported
34796 [http-bio-8084-exec-3] DEBUG org.springframework.web.servlet.mvc.annotation.ResponseStatusExceptionResolver - Resolving exception from handler [null]: org.springframework.web.HttpRequestMethodNotSupportedException: Request method 'POST' not supported
34796 [http-bio-8084-exec-3] DEBUG org.springframework.web.servlet.mvc.support.DefaultHandlerExceptionResolver - Resolving exception from handler [null]: org.springframework.web.HttpRequestMethodNotSupportedException: Request method 'POST' not supported
34796 [http-bio-8084-exec-3] WARN org.springframework.web.servlet.PageNotFound - Request method 'POST' not supported
34796 [http-bio-8084-exec-3] DEBUG org.springframework.web.servlet.DispatcherServlet - Null ModelAndView returned to DispatcherServlet with name 'crimetrack': assuming HandlerAdapter completed request handling
34796 [http-bio-8084-exec-3] DEBUG org.springframework.web.servlet.DispatcherServlet - Cleared thread-bound request context: org.apache.catalina.connector.RequestFacade@2ba3ece5
34796 [http-bio-8084-exec-3] DEBUG org.springframework.web.servlet.DispatcherServlet - Successfully completed request
34796 [http-bio-8084-exec-3] DEBUG org.springframework.web.context.support.XmlWebApplicationContext - Publishing event in WebApplicationContext for namespace 'crimetrack-servlet': ServletRequestHandledEvent: url=[/crimeTrack/getCitizen/citizen_registration.htm]; client=[127.0.0.1]; method=[POST]; servlet=[crimetrack]; session=[null]; user=[null]; time=[8ms]; status=[OK]
34796 [http-bio-8084-exec-3] DEBUG org.springframework.web.context.support.XmlWebApplicationContext - Publishing event in Root WebApplicationContext: ServletRequestHandledEvent: url=[/crimeTrack/getCitizen/citizen_registration.htm]; client=[127.0.0.1]; method=[POST]; servlet=[crimetrack]; session=[null]; user=[null]; time=[8ms]; status=[OK]
萤火虫
检查 FireBug 我得到了"NetworkError: 405 Method Not Allowed - http://localhost:8084/crimeTrack/getCitizen/citizen_registration.htm"
这个应该是http://localhost:8084/crimeTrack
/citizen_registration.htm"`
getCitizen 是我在第一次执行查询时被带到的页面,它包含在 url 中。
我将 jsp 表单操作定义更改为,<form:form id="citizenRegistration" name ="citizenRegistration" method="POST" commandName="citizens" action="<%=request.getContextPath()%>/citizen_registration.htm">
但是当我启动应用程序并向此页面发出请求时,我得到:
HTTP Status 500 - /WEB-INF/jsp/citizen_registration.jsp (line: 31, column: 116) attribute for %>" is not properly terminated