Struts2_05_访问Servlet API
a.Map 类型 servlet 对象
通过特定的API
public class AttrAction {
private Map<String,Object> requestAttrs;
private Map<String,Object> sessionAttrs;
private Map<String,Object> applicationAttrs;
public AttrAction() {
requestAttrs=(Map<String, Object>) ActionContext.getContext().get("request");
sessionAttrs=ActionContext.getContext().getSession();
applicationAttrs=ActionContext.getContext().getApplication();
}
}
依赖注入
public class Attr2Action implements RequestAware, SessionAware,
ApplicationAware {
private Map<String, Object> requestAttrs;
private Map<String, Object> sessionAttrs;
private Map<String, Object> applicationAttrs;
public void setRequest(Map<String, Object> requestAttrs) {
this.requestAttrs = requestAttrs;
}
public void setSession(Map<String, Object> sessionAttrs) {
this.sessionAttrs = sessionAttrs;
}
public void setApplication(Map<String, Object> applicationAttrs) {
this.applicationAttrs = applicationAttrs;
}
}
b.拿真实的servlet API对象
通过特定的API
public class ServletAction {
private HttpServletRequest request;
private HttpServletResponse response;
private HttpSession session;
private ServletContext context;
public ServletAction() {
request = ServletActionContext.getRequest();
response = ServletActionContext.getResponse();
session = request.getSession();
context = ServletActionContext.getServletContext();
}
}
依赖注入
public class Servlet2Action implements ServletRequestAware,
ServletResponseAware, ServletContextAware {
private HttpServletRequest request;
private HttpServletResponse response;
private HttpSession session;
private ServletContext context;
public void setServletRequest(HttpServletRequest request) {
this.request = request;
this.session = request.getSession();
}
public void setServletResponse(HttpServletResponse response) {
this.response = response;
}
public void setServletContext(ServletContext servletContext) {
this.context = servletContext;
}
}