org.jfantasy.framework.util.web

Class ServletUtils

java.lang.Object

org.jfantasy.framework.util.web.ServletUtils

public class ServletUtils
extends java.lang.Object

Servlet 工具类

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	AUTHENTICATION_HEADER
static java.lang.String	EXCEL_TYPE
static java.lang.String	HTML_TYPE
static java.lang.String	JS_TYPE
static java.lang.String	JSON_TYPE
static long	ONE_YEAR_SECONDS
static java.lang.String	TEXT_TYPE
static java.lang.String	XML_TYPE

Method Summary

Modifier and Type	Method and Description
static boolean	checkIfModifiedSince(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response, long lastModified) 检查 Modified 字段是否过期
static boolean	checkIfNoneMatchEtag(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response, java.lang.String etag) 检查 etag 字段是否过期
static java.lang.String	encodeHttpBasic(java.lang.String userName, java.lang.String password)
static java.util.Map<java.lang.String,java.lang.Object>	getParametersStartingWith(javax.servlet.http.HttpServletRequest request, java.lang.String prefix)
static void	setEtag(javax.servlet.http.HttpServletResponse response, java.lang.String etag)
static void	setExpiresHeader(javax.servlet.http.HttpServletResponse response, long expiresSeconds) 设置 页面过期时间
static void	setFileDownloadHeader(javax.servlet.http.HttpServletResponse response, java.lang.String fileName) Deprecated.
static void	setLastModifiedHeader(javax.servlet.http.HttpServletResponse response, long lastModifiedDate) 设置 页面的最后修改时间
static void	setNoCacheHeader(javax.servlet.http.HttpServletResponse response) 设置 页面不缓存
static void	setNoStoreHeader(javax.servlet.http.HttpServletResponse response) 设置 页面不存储

Methods inherited from class java.lang.Object

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

Field Detail

TEXT_TYPE

public static final java.lang.String TEXT_TYPE

See Also:

Constant Field Values

JSON_TYPE

public static final java.lang.String JSON_TYPE

See Also:

Constant Field Values

XML_TYPE

public static final java.lang.String XML_TYPE

See Also:

Constant Field Values

HTML_TYPE

public static final java.lang.String HTML_TYPE

See Also:

Constant Field Values

JS_TYPE

public static final java.lang.String JS_TYPE

See Also:

Constant Field Values

EXCEL_TYPE

public static final java.lang.String EXCEL_TYPE

See Also:

Constant Field Values

AUTHENTICATION_HEADER

public static final java.lang.String AUTHENTICATION_HEADER

See Also:

Constant Field Values

ONE_YEAR_SECONDS

public static final long ONE_YEAR_SECONDS

See Also:

Constant Field Values

Method Detail

setExpiresHeader

public static void setExpiresHeader(javax.servlet.http.HttpServletResponse response,
                                    long expiresSeconds)

设置 页面过期时间

Parameters:

response - HttpServletResponse

expiresSeconds - 过期时间(秒)

setNoCacheHeader

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

设置 页面不缓存

Parameters:

response - HttpServletResponse

setNoStoreHeader

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

设置 页面不存储

Parameters:

response - HttpServletResponse

setLastModifiedHeader

public static void setLastModifiedHeader(javax.servlet.http.HttpServletResponse response,
                                         long lastModifiedDate)

设置 页面的最后修改时间

Parameters:

response -

lastModifiedDate -

setEtag

public static void setEtag(javax.servlet.http.HttpServletResponse response,
                           java.lang.String etag)

checkIfModifiedSince

public static boolean checkIfModifiedSince(javax.servlet.http.HttpServletRequest request,
                                           javax.servlet.http.HttpServletResponse response,
                                           long lastModified)

检查 Modified 字段是否过期

Parameters:

request - HttpServletRequest

response - HttpServletResponse

lastModified - 过期时间

Returns:

boolean

checkIfNoneMatchEtag

public static boolean checkIfNoneMatchEtag(javax.servlet.http.HttpServletRequest request,
                                           javax.servlet.http.HttpServletResponse response,
                                           java.lang.String etag)

检查 etag 字段是否过期

Parameters:

request - HttpServletRequest

response - HttpServletResponse

etag - 版本的标识符

Returns:

boolean

setFileDownloadHeader

@Deprecated
public static void setFileDownloadHeader(javax.servlet.http.HttpServletResponse response,
                                                     java.lang.String fileName)

Deprecated.

方法待优化

Parameters:

response - HttpServletResponse

fileName - 设置下载文件名

getParametersStartingWith

public static java.util.Map<java.lang.String,java.lang.Object> getParametersStartingWith(javax.servlet.http.HttpServletRequest request,
                                                                                         java.lang.String prefix)

encodeHttpBasic

public static java.lang.String encodeHttpBasic(java.lang.String userName,
                                               java.lang.String password)