传智Struts2笔记（10）获取request/session/application属性
访问或添加request/session/application属性
public String scope() throws Exception{
ActionContext ctx = ActionContext.getContext();
ctx.getApplication().put("app", "应用范围");//往ServletContext里放入app
ctx.getSession().put("ses", "session范围");//往session里放入ses
ctx.put("req", "request范围");//往request里放入req
return "scope";
}JSP:
<body>
${applicationScope.app}<br>
${sessionScope.ses}<br>
${requestScope.req}<br>
</body>
获取HttpServletRequest/HttpSession/ServletContext/HttpServletResponse对象
方法一，通过ServletActionContext.类直接获取：
public String rsa() throws Exception{
HttpServletRequest request = ServletActionContext.getRequest();
ServletContext servletContext = ServletActionContext.getServletContext();
request.getSession()
HttpServletResponse response = ServletActionContext.getResponse();
return "scope";
}方法二，实现指定接口，由struts框架运行时注入：
public class HelloWorldAction implements ServletRequestAware, ServletResponseAware, ServletContextAware{
private HttpServletRequest request;
private ServletContext servletContext;
private HttpServletResponse response;
public void setServletRequest(HttpServletRequest req) {
this.request=req;
}
public void setServletResponse(HttpServletResponse res) {
this.response=res;
}
public void setServletContext(ServletContext ser) {
this.servletContext=ser;
}
} 相关推荐
歆萌 2020-08-03
houmenghu 2020-11-17
思君夜未眠 2020-08-25
阳光之吻 2020-08-03
mbcsdn 2020-06-05
我心似明月 2020-11-09
oraclemch 2020-11-06
ltd00 2020-09-12
康慧欣 2020-09-10
waveclouds 2020-09-04
蓝色深海 2020-09-15
jincheng 2020-09-01
取个好名字真难 2020-08-06
婷婷小屋 2020-07-28
solarspot 2020-07-28
MLXY 2020-07-26
dxbjfu0 2020-07-26
songbinxu 2020-07-19
83520298 2020-07-06