com.seeyon.ctp.common.web.util

类 WebUtil

java.lang.Object

com.seeyon.ctp.common.web.util.WebUtil

public class WebUtil
extends java.lang.Object

User: lius Date: 2006-11-3 Time: 11:40:42

构造器概要

构造器

构造器和说明
WebUtil()

方法概要

限定符和类型	方法和说明
static java.lang.String	buildETag(long etag)
static boolean	checkEtag(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response, java.lang.String ETag) 检查HTTP发过来的信息是否与系统信息相匹配，如果匹配返回304
static java.lang.String	escape(java.lang.String src) java版的escape
static java.lang.String	flash(javax.servlet.jsp.PageContext pageContext)
static java.lang.String	flash(java.lang.String resource, java.util.Locale locale)
static java.lang.String	getMessage(javax.servlet.jsp.PageContext pageContext) 获取saveMessage(String key, Object... params)保存的的消息，并进行国际化转化
static java.lang.Object	getObject() 获取saveObject(Object)保存的对象
static javax.servlet.http.HttpServletRequest	getRequest()
static javax.servlet.http.HttpServletResponse	getResponse()
static void	remove()
static void	saveAlert(java.lang.String key, java.lang.Object... paramters) 存为alert信息
static void	saveException(BusinessException e) 保存异常，用getException(PageContext pageContext)获取
static void	saveJavascript(java.lang.String javascript)
static void	saveMessage(java.lang.String key, java.lang.Object... params) 保存消息，支持国际化 用getMessage(PageContext pageContext)获取
static void	saveObject(java.lang.Object object) 保存对象 用getObject()获取
static void	setRequest(javax.servlet.http.HttpServletRequest request)
static void	setResponse(javax.servlet.http.HttpServletResponse response)
static java.lang.String	unescape(java.lang.String src) java版的unescape
static void	writeETag(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response, java.lang.String ETag) 写ETag信息
static void	writeETag(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response, java.lang.String ETag, long cacheDate) 写ETag信息 2018.5.31：重大修改：因为FireFox和Chrome只认一个，以cacheDate优先，即cacheDate>0时就不写入eTag了

从类继承的方法 java.lang.Object

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

构造器详细资料

WebUtil

public WebUtil()

方法详细资料

remove

public static void remove()

setRequest

public static void setRequest(javax.servlet.http.HttpServletRequest request)

getRequest

public static javax.servlet.http.HttpServletRequest getRequest()

setResponse

public static void setResponse(javax.servlet.http.HttpServletResponse response)

getResponse

public static javax.servlet.http.HttpServletResponse getResponse()

saveJavascript

public static void saveJavascript(java.lang.String javascript)

参数:

javascript - javascript片段

saveAlert

public static void saveAlert(java.lang.String key,
                             java.lang.Object... paramters)

存为alert信息

参数:

key -

paramters -

flash

public static java.lang.String flash(javax.servlet.jsp.PageContext pageContext)

flash

public static java.lang.String flash(java.lang.String resource,
                                     java.util.Locale locale)

saveException

public static void saveException(BusinessException e)

保存异常，用getException(PageContext pageContext)获取

参数:

e -

saveMessage

public static void saveMessage(java.lang.String key,
                               java.lang.Object... params)

保存消息，支持国际化 用getMessage(PageContext pageContext)获取

参数:

key -

params -

getMessage

public static java.lang.String getMessage(javax.servlet.jsp.PageContext pageContext)

获取saveMessage(String key, Object... params)保存的的消息，并进行国际化转化

参数:

pageContext -

返回:

最终文本

saveObject

public static void saveObject(java.lang.Object object)

保存对象 用getObject()获取

参数:

object -

getObject

public static java.lang.Object getObject()

获取saveObject(Object)保存的对象

返回:

escape

public static java.lang.String escape(java.lang.String src)

java版的escape

参数:

src -

返回:

唐立颢 20071129

unescape

public static java.lang.String unescape(java.lang.String src)

java版的unescape

参数:

src -

返回:

唐立颢 20071129

checkEtag

public static boolean checkEtag(javax.servlet.http.HttpServletRequest request,
                                javax.servlet.http.HttpServletResponse response,
                                java.lang.String ETag)
                         throws java.io.IOException

检查HTTP发过来的信息是否与系统信息相匹配，如果匹配返回304

参数:

request -

response -

ETag -

返回:

true匹配

抛出:

java.io.IOException

writeETag

public static void writeETag(javax.servlet.http.HttpServletRequest request,
                             javax.servlet.http.HttpServletResponse response,
                             java.lang.String ETag)

写ETag信息

参数:

request -

response -

ETag -

buildETag

public static java.lang.String buildETag(long etag)

writeETag

public static void writeETag(javax.servlet.http.HttpServletRequest request,
                             javax.servlet.http.HttpServletResponse response,
                             java.lang.String ETag,
                             long cacheDate)

写ETag信息
2018.5.31：重大修改：因为FireFox和Chrome只认一个，以cacheDate优先，即cacheDate>0时就不写入eTag了

参数:

request -

response -

ETag -

cacheDate - 浏览器缓存的时长，单位：秒