struts2的ActionContext

标签：

ActionContext是action上下文吧

通过ActionContext可以得到request session等

static ThreadLocal<ActionContext> actionContext = new ThreadLocal<ActionContext>();

所以ActionContext是线程安全的 ActionContext.getcontext就是得到与当前线程相关的ActionContext

ActionContext有一个map

private Map<String, Object> context;

map里面有如下键值对

ACTION_INVOCATION = "com.opensymphony.xwork2.ActionContext.actionInvocation"                     actionInvocation

VALUE_STACK = "com.opensymphony.xwork2.util.ValueStack.ValueStack"                                       stack

PARAMETERS = "com.opensymphony.xwork2.ActionContext.parameters"                                          parameters

SESSION = "com.opensymphony.xwork2.ActionContext.session"                                                        session

APPLICATION = "com.opensymphony.xwork2.ActionContext.application"                                            application

CONTAINER = "com.opensymphony.xwork2.ActionContext.container"                                                 cont

ACTION_NAME = "com.opensymphony.xwork2.ActionContext.name"                                                  name

LOCALE = "com.opensymphony.xwork2.ActionContext.locale"                                                              locale

CONVERSION_ERRORS = "com.opensymphony.xwork2.ActionContext.conversionErrors"                conversionErrors

所以我就可以ActionContext.getcontext.getsession之类的操作

struts2的ActionContext

标签：

原文地址：http://blog.csdn.net/u011686226/article/details/45851807