com.alibaba.nacos.core.utils

类 WebUtils

java.lang.Object

com.alibaba.nacos.core.utils.WebUtils

public class WebUtils
extends java.lang.Object

web utils.

作者:

nkorange

字段概要

字段

限定符和类型	字段和说明
private static java.lang.String	COMMA
private static java.lang.String	ENCODING_KEY
private static java.lang.String	SEMI
private static java.lang.String	TMP_SUFFIX

构造器概要

构造器

构造器和说明
WebUtils()

方法概要

限定符和类型	方法和说明
static java.lang.String	getAcceptEncoding(javax.servlet.http.HttpServletRequest req) get accept encode from request.
static java.lang.String	getUserAgent(javax.servlet.http.HttpServletRequest request) Returns the value of the request header "user-agent" as a String.
static void	onFileUpload(org.springframework.web.multipart.MultipartFile multipartFile, java.util.function.Consumer<java.io.File> consumer, org.springframework.web.context.request.async.DeferredResult<RestResult<java.lang.String>> response) Handle file upload operations.
static java.lang.String	optional(javax.servlet.http.HttpServletRequest req, java.lang.String key, java.lang.String defaultValue) get target value from parameterMap, if not found will return default value.
static <T> void	process(org.springframework.web.context.request.async.DeferredResult<T> deferredResult, java.util.concurrent.CompletableFuture<T> future, java.util.function.Function<java.lang.Throwable,T> errorHandler) Register DeferredResult in the callback of CompletableFuture.
static <T> void	process(org.springframework.web.context.request.async.DeferredResult<T> deferredResult, java.util.concurrent.CompletableFuture<T> future, java.lang.Runnable success, java.util.function.Function<java.lang.Throwable,T> errorHandler) Register DeferredResult in the callback of CompletableFuture.
static java.lang.String	required(javax.servlet.http.HttpServletRequest req, java.lang.String key) get target value from parameterMap, if not found will throw { IllegalArgumentException}.
private static java.lang.String	resolveValue(java.lang.String value, java.lang.String encoding) decode target value.
private static java.lang.String	resolveValueWithUrlDecode(java.lang.String value, java.lang.String encoding) decode target value with UrlDecode.
static void	response(javax.servlet.http.HttpServletResponse response, java.lang.String body, int code) response data to client.

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

ENCODING_KEY

private static final java.lang.String ENCODING_KEY

另请参阅:

常量字段值

COMMA

private static final java.lang.String COMMA

另请参阅:

常量字段值

SEMI

private static final java.lang.String SEMI

另请参阅:

常量字段值

TMP_SUFFIX

private static final java.lang.String TMP_SUFFIX

另请参阅:

常量字段值

构造器详细资料

WebUtils

public WebUtils()

方法详细资料

required

public static java.lang.String required(javax.servlet.http.HttpServletRequest req,
                                        java.lang.String key)

get target value from parameterMap, if not found will throw { IllegalArgumentException}.

参数:

req - { HttpServletRequest}

key - key

返回:

value

optional

public static java.lang.String optional(javax.servlet.http.HttpServletRequest req,
                                        java.lang.String key,
                                        java.lang.String defaultValue)

get target value from parameterMap, if not found will return default value.

参数:

req - { HttpServletRequest}

key - key

defaultValue - default value

返回:

value

resolveValue

private static java.lang.String resolveValue(java.lang.String value,
                                             java.lang.String encoding)

decode target value.

参数:

value - value

encoding - encode

返回:

Decoded data

resolveValueWithUrlDecode

private static java.lang.String resolveValueWithUrlDecode(java.lang.String value,
                                                          java.lang.String encoding)

decode target value with UrlDecode.

Under Content-Type:application/x-www-form-urlencoded situation.

参数:

value - value

encoding - encode

返回:

Decoded data

getAcceptEncoding

public static java.lang.String getAcceptEncoding(javax.servlet.http.HttpServletRequest req)

get accept encode from request.

参数:

req - { HttpServletRequest}

返回:

accept encode

getUserAgent

public static java.lang.String getUserAgent(javax.servlet.http.HttpServletRequest request)

Returns the value of the request header "user-agent" as a String.

参数:

request - HttpServletRequest

返回:

the value of the request header "user-agent", or the value of the request header "client-version" if the request does not have a header of "user-agent".

response

public static void response(javax.servlet.http.HttpServletResponse response,
                            java.lang.String body,
                            int code)
                     throws java.io.IOException

response data to client.

参数:

response - { HttpServletResponse}

body - body

code - http code

抛出:

java.io.IOException - IOException

onFileUpload

public static void onFileUpload(org.springframework.web.multipart.MultipartFile multipartFile,
                                java.util.function.Consumer<java.io.File> consumer,
                                org.springframework.web.context.request.async.DeferredResult<RestResult<java.lang.String>> response)

Handle file upload operations.

参数:

multipartFile - file

consumer - post processor

response - { DeferredResult}

process

public static <T> void process(org.springframework.web.context.request.async.DeferredResult<T> deferredResult,
                               java.util.concurrent.CompletableFuture<T> future,
                               java.util.function.Function<java.lang.Throwable,T> errorHandler)

Register DeferredResult in the callback of CompletableFuture.

类型参数:

T - target type

参数:

deferredResult - { DeferredResult}

future - { CompletableFuture}

errorHandler - { Function}

process

public static <T> void process(org.springframework.web.context.request.async.DeferredResult<T> deferredResult,
                               java.util.concurrent.CompletableFuture<T> future,
                               java.lang.Runnable success,
                               java.util.function.Function<java.lang.Throwable,T> errorHandler)

Register DeferredResult in the callback of CompletableFuture.

类型参数:

T - target type

参数:

deferredResult - { DeferredResult}

future - { CompletableFuture}

success - if future success, callback runnable

errorHandler - { Function}