freework.web

类 WebRequestContext

java.lang.Object

freework.web.WebRequestContext

public class WebRequestContext
extends Object

Web 请求上下文

使用 ThreadLocal 实现, 因此在使用结束后必须调用 end() 清理(Tomcat 等存在线程复用)

作者:

vacoor

嵌套类概要

嵌套类

限定符和类型	类和说明
static class	WebRequestContext.EnumeratedMap<K,V> This is decode Map implementation driven by decode data source that only provides an enumeration of keys and decode getValue(key) method.
static class	WebRequestContext.ImplicitObjectELResolver<T> EL 内置对象解析器 修改自 javax.servlet.jsp.el
static interface	WebRequestContext.ImplicitObjectsFactory<Context>
protected static class	WebRequestContext.ScopedAttributeELResolver EL 作用于属性解析器

字段概要

字段

限定符和类型	字段和说明
static int	APPLICATION_SCOPE
static int	CONTEXT_SCOPE
static int	REQUEST_SCOPE
static int	SESSION_SCOPE

方法概要

限定符和类型	方法和说明
static WebRequestContext	begin(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response, javax.servlet.ServletContext context)
void	end() 解除当前线程上下文绑定的 WebRequestContext
<T> T	findAttribute(String name)
<T> T	getAttribute(String name, int scope)
Enumeration<String>	getAttributeNamesInScope(int scope)
int	getAttributesScope(String name)
static WebRequestContext	getContext()
javax.servlet.http.HttpServletRequest	getRequest()
static WebRequestContext	getRequiredContext()
javax.servlet.http.HttpServletResponse	getResponse()
javax.servlet.ServletContext	getServletContext()
javax.servlet.http.HttpSession	getSession()
javax.servlet.http.HttpSession	getSession(boolean create)
void	removeAttribute(String name, int scope)
String	resolve(String expression) resolveActualTypeArgs("name: ${param.name}")
<T> T	resolve(String expression, Class<T> type)
void	setAttribute(String name, Object value, int scope)

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

字段详细资料

CONTEXT_SCOPE

public static final int CONTEXT_SCOPE

另请参阅:

常量字段值

REQUEST_SCOPE

public static final int REQUEST_SCOPE

另请参阅:

常量字段值

SESSION_SCOPE

public static final int SESSION_SCOPE

另请参阅:

常量字段值

APPLICATION_SCOPE

public static final int APPLICATION_SCOPE

另请参阅:

常量字段值

方法详细资料

getRequest

public javax.servlet.http.HttpServletRequest getRequest()

getResponse

public javax.servlet.http.HttpServletResponse getResponse()

getServletContext

public javax.servlet.ServletContext getServletContext()

getSession

public javax.servlet.http.HttpSession getSession()

getSession

public javax.servlet.http.HttpSession getSession(boolean create)

findAttribute

public <T> T findAttribute(String name)

getAttribute

public <T> T getAttribute(String name,
                          int scope)

setAttribute

public void setAttribute(String name,
                         Object value,
                         int scope)

removeAttribute

public void removeAttribute(String name,
                            int scope)

getAttributesScope

public int getAttributesScope(String name)

getAttributeNamesInScope

public Enumeration<String> getAttributeNamesInScope(int scope)

resolve

public String resolve(String expression)

resolveActualTypeArgs("name: ${param.name}")

参数:

expression - EL 表达式

resolve

public <T> T resolve(String expression,
                     Class<T> type)

end

public void end()

解除当前线程上下文绑定的 WebRequestContext

begin

public static WebRequestContext begin(javax.servlet.http.HttpServletRequest request,
                                      javax.servlet.http.HttpServletResponse response,
                                      javax.servlet.ServletContext context)

getRequiredContext

public static WebRequestContext getRequiredContext()
                                            throws IllegalStateException

抛出:

IllegalStateException

getContext

public static WebRequestContext getContext()