@RequestMapping(value = "update", method = RequestMethod.POST)
public String update(
@Valid @ModelAttribute("task") Task task, RedirectAttributes redirectAttributes) {
taskService.saveTask(task);
redirectAttributes.addFlashAttribute("message", "更新任务成功");
return "redirect:/task/";
}
@RequestMapping(value = "create", method = RequestMethod.POST)
public String create(@Valid Task newTask, RedirectAttributes redirectAttributes) {
User user = new User(getCurrentUserId());
newTask.setUser(user);
taskService.saveTask(newTask);
redirectAttributes.addFlashAttribute("message", "创建任务成功");
return "redirect:/task/";
}
@RequestMapping(value = "")
public String list(
@RequestParam(value = "page", defaultValue = "1") int pageNumber,
@RequestParam(value = "page.size", defaultValue = PAGE_SIZE) int pageSize,
@RequestParam(value = "sortType", defaultValue = "auto") String sortType,
Model model,
ServletRequest request) {
Map<String, Object> searchParams = Servlets.getParametersStartingWith(request, "search_");
Long userId = getCurrentUserId();
Page<Task> tasks =
taskService.getUserTask(userId, searchParams, pageNumber, pageSize, sortType);
model.addAttribute("tasks", tasks);
model.addAttribute("sortType", sortType);
model.addAttribute("sortTypes", sortTypes);
// 将搜索条件编码成字符串，用于排序，分页的URL
model.addAttribute(
"searchParams", Servlets.encodeParameterStringWithPrefix(searchParams, "search_"));
return "task/taskList";
}
@RequestMapping(value = "update/{id}", method = RequestMethod.GET)
public String updateForm(@PathVariable("id") Long id, Model model) {
model.addAttribute("task", taskService.getTask(id));
model.addAttribute("action", "update");
return "task/taskForm";
}
/**
* 所有RequestMapping方法调用前的Model准备方法, 实现Struts2
* Preparable二次部分绑定的效果,先根据form的id从数据库查出Task对象,再把Form提交的内容绑定到该对象上。
* 因为仅update()方法的form中有id属性，因此仅在update时实际执行.
*/
@ModelAttribute()
public void getTask(@RequestParam(value = "id", required = false) Long id, Model model) {
if (id != null) {
model.addAttribute("task", taskService.getTask(id));
}
}
@RequestMapping(value = "delete/{id}")
public String delete(@PathVariable("id") Long id, RedirectAttributes redirectAttributes) {
taskService.deleteTask(id);
redirectAttributes.addFlashAttribute("message", "删除任务成功");
return "redirect:/task/";
}