1、使用ServletAPI向request域对象共享数据
首页
<a th:href="@{/testServletAPI}">测testServletAPI</a><br>
success.html
<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head><meta charset="UTF-8"><title>Title</title>
</head>
<body>
<p>success!</p>
<p th:text="${testScope}">标签体原始值</p>
</body>
</html>
@RequestMapping("/testServletAPI")
public String testServletAPI(HttpServletRequest request){request.setAttribute("testScope", "hello,servletAPI");return "success";
}
2、使用ModelAndView向request域对象共享数据
<a th:href="@{/testModelAndView}">测testServletAPI</a><br>
@RequestMapping("/testModelAndView")
public ModelAndView testModelAndView(){/*** ModelAndView有Model和View的功能* Model主要用于向请求域共享数据* View主要用于设置视图，实现页面跳转*/ModelAndView mav = new ModelAndView();//向请求域共享数据mav.addObject("testScope", "hello,ModelAndView");//设置视图，实现页面跳转mav.setViewName("success");return mav;
}
succss.html不变
使用Model向request域对象共享数据
<a th:href="@{/testModel}">测/testModel</a><br>
succss.html 不变
@RequestMapping("/testModel")
public String testModel(Model model){model.addAttribute("testScope", "hello,Model");return "success";
}
4、使用map向request域对象共享数据
succss.html 不变
<a th:href="@{/testMap}">测/testMap</a><br>
@RequestMapping("/testMap")
public String testMap(Map<String, Object> map){map.put("testScope", "hello,Map");return "success";
}
5、使用ModelMap向request域对象共享数据
succss.html 不变
<a th:href="@{/testModelMap}">测/testModelMap</a><br>
@RequestMapping("/testModelMap")
public String testModelMap(ModelMap modelMap){modelMap.addAttribute("testScope", "hello,ModelMap");return "success";
}
6、Model、ModelMap、Map的关系
Model、ModelMap、Map类型的参数其实本质上都是 BindingAwareModelMap 类型的
public interface Model{}
public class ModelMap extends LinkedHashMap<String, Object> {}
public class ExtendedModelMap extends ModelMap implements Model {}
public class BindingAwareModelMap extends ExtendedModelMap {}
7、向session域共享数据
succss.html
注意session 里面的数据要加session.
<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head><meta charset="UTF-8"><title>Title</title>
</head>
<body>
<p>success!</p>
<p th:text="${session.testScope}">标签体原始值</p>
</body>
</html>
<a th:href="@{/testSession}">测/testSession</a><br>
@RequestMapping("/testSession")public String testSession(HttpSession session){session.setAttribute("testScope", "hello,session");return "success";}
8、向application域共享数据
<a th:href="@{/testApplication}">测/testApplication</a><br>success.html
<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head><meta charset="UTF-8"><title>Title</title>
</head>
<body>
<p>success!</p>
<p th:text="${application.testScope}">标签体原始值</p>
</body>
</html>
@RequestMapping("/testApplication")
public String testApplication(HttpSession session){ServletContext application = session.getServletContext();application.setAttribute("testApplicationScope", "hello,application");return "success";
}
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