在Controller 得到了一个List,并且把这个list放到 map里,传到jsp页面。这个list里的内容是一个复合结构(tfeedback,包括了title content keyword 等)。现在的问题是在jsp页面显示出错
public String FeedbackListAll(HttpServletRequest request, HttpServletResponse response){
availableItems = tfeedbackService.findAll(Tfeedback.class);
Iterator<Tfeedback> it = availableItems.iterator();
Map map = new HashMap();
List<Tfeedback> list = new ArrayList<Tfeedback>();
while(it.hasNext())
{
list.add(it.next());
}
map.put("feedback", list);
request.setAttribute("feedbackmap",map);
return "/auth/feedbacklist";
}<table border="0" cellspacing="0" cellpadding="0" width="1000" >
<tr>
<td valign="top" align="center" bgcolor="#6da9fb">用户反馈列表</td>
</tr>
</table> <c:forEach items="${feedbackmap}" var="feedback" begin ="0" end = "1" varStatus="var">
${feedback.title}
</c:forEach>
还有一个问题是,在Controller里一定要写request.setAttribute("feedbackmap",map); 这句吗?感觉很别扭
public String FeedbackListAll(HttpServletRequest request, HttpServletResponse response){
availableItems = tfeedbackService.findAll(Tfeedback.class);
Iterator<Tfeedback> it = availableItems.iterator();
Map map = new HashMap();
List<Tfeedback> list = new ArrayList<Tfeedback>();
while(it.hasNext())
{
list.add(it.next());
}
map.put("feedback", list);
request.setAttribute("feedbackmap",map);
return "/auth/feedbacklist";
}<table border="0" cellspacing="0" cellpadding="0" width="1000" >
<tr>
<td valign="top" align="center" bgcolor="#6da9fb">用户反馈列表</td>
</tr>
</table> <c:forEach items="${feedbackmap}" var="feedback" begin ="0" end = "1" varStatus="var">
${feedback.title}
</c:forEach>
还有一个问题是,在Controller里一定要写request.setAttribute("feedbackmap",map); 这句吗?感觉很别扭
给事实例@RequestMapping(params="method=login")
public String login(@Valid User user, BindingResult userResult, @Valid Log log, BindingResult logResult, ModelMap map){
if(userResult.hasErrors() || logResult.hasErrors()){
return "error";
}
//System.out.println(webRequest.getParameter("username"));
//System.out.println(request.getParameter("password"));
System.out.println(log.getBirthday());
String result = "success";
map.put("user", user);
if(!ls.isExist(user)){
result = "fail";
}
return result;
//return "redirect:http://www.baidu.com";
}只需要吧是放入modelmap中 前台就能获取值了 另外 springmvc是通过参数传值的 从前台传值的时候只要吧该参数放入 该方法的参数中 springmvc就能自动映射 比如上面方法中的user 和log