springboot tomcat的maxHttpFormPostSize參數(shù)示例解析
更新時(shí)間：2023年08月17日 11:54:49 作者：codecraft
這篇文章主要介紹了springboot tomcat的maxHttpFormPostSize參數(shù)示例解析,有需要的朋友可以借鑒參考下,希望能夠有所幫助,祝大家多多進(jìn)步,早日升職加薪
序
本文主要研究一下spring boot tomcat的maxHttpFormPostSize參數(shù)
parseParameters
tomcat-embed-core-9.0.37-sources.jar!/org/apache/catalina/connector/Request.java
/**
* Parse request parameters.
*/
protected void parseParameters() {
parametersParsed = true;
Parameters parameters = coyoteRequest.getParameters();
boolean success = false;
try {
// Set this every time in case limit has been changed via JMX
parameters.setLimit(getConnector().getMaxParameterCount());
// getCharacterEncoding() may have been overridden to search for
// hidden form field containing request encoding
Charset charset = getCharset();
boolean useBodyEncodingForURI = connector.getUseBodyEncodingForURI();
parameters.setCharset(charset);
if (useBodyEncodingForURI) {
parameters.setQueryStringCharset(charset);
}
// Note: If !useBodyEncodingForURI, the query string encoding is
// that set towards the start of CoyoyeAdapter.service()
parameters.handleQueryParameters();
if (usingInputStream || usingReader) {
success = true;
return;
}
String contentType = getContentType();
if (contentType == null) {
contentType = "";
}
int semicolon = contentType.indexOf(';');
if (semicolon >= 0) {
contentType = contentType.substring(0, semicolon).trim();
} else {
contentType = contentType.trim();
}
if ("multipart/form-data".equals(contentType)) {
parseParts(false);
success = true;
return;
}
if( !getConnector().isParseBodyMethod(getMethod()) ) {
success = true;
return;
}
if (!("application/x-www-form-urlencoded".equals(contentType))) {
success = true;
return;
}
int len = getContentLength();
if (len > 0) {
int maxPostSize = connector.getMaxPostSize();
if ((maxPostSize >= 0) && (len > maxPostSize)) {
Context context = getContext();
if (context != null && context.getLogger().isDebugEnabled()) {
context.getLogger().debug(
sm.getString("coyoteRequest.postTooLarge"));
}
checkSwallowInput();
parameters.setParseFailedReason(FailReason.POST_TOO_LARGE);
return;
}
byte[] formData = null;
if (len < CACHED_POST_LEN) {
if (postData == null) {
postData = new byte[CACHED_POST_LEN];
}
formData = postData;
} else {
formData = new byte[len];
}
try {
if (readPostBody(formData, len) != len) {
parameters.setParseFailedReason(FailReason.REQUEST_BODY_INCOMPLETE);
return;
}
} catch (IOException e) {
// Client disconnect
Context context = getContext();
if (context != null && context.getLogger().isDebugEnabled()) {
context.getLogger().debug(
sm.getString("coyoteRequest.parseParameters"), e);
}
parameters.setParseFailedReason(FailReason.CLIENT_DISCONNECT);
return;
}
parameters.processParameters(formData, 0, len);
} else if ("chunked".equalsIgnoreCase(
coyoteRequest.getHeader("transfer-encoding"))) {
byte[] formData = null;
try {
formData = readChunkedPostBody();
} catch (IllegalStateException ise) {
// chunkedPostTooLarge error
parameters.setParseFailedReason(FailReason.POST_TOO_LARGE);
Context context = getContext();
if (context != null && context.getLogger().isDebugEnabled()) {
context.getLogger().debug(
sm.getString("coyoteRequest.parseParameters"),
ise);
}
return;
} catch (IOException e) {
// Client disconnect
parameters.setParseFailedReason(FailReason.CLIENT_DISCONNECT);
Context context = getContext();
if (context != null && context.getLogger().isDebugEnabled()) {
context.getLogger().debug(
sm.getString("coyoteRequest.parseParameters"), e);
}
return;
}
if (formData != null) {
parameters.processParameters(formData, 0, formData.length);
}
}
success = true;
} finally {
if (!success) {
parameters.setParseFailedReason(FailReason.UNKNOWN);
}
}
}tomcat request解析表單參數(shù)
maxPostSize
主要是下面這段
if ((maxPostSize >= 0) && (len > maxPostSize)) {
Context context = getContext();
if (context != null && context.getLogger().isDebugEnabled()) {
context.getLogger().debug(
sm.getString("coyoteRequest.postTooLarge"));
}
checkSwallowInput();
parameters.setParseFailedReason(FailReason.POST_TOO_LARGE);
return;
}如果大于maxPostSize，則會(huì)設(shè)置FailReason.POST_TOO_LARGE，如果開啟debug日志則會(huì)打印coyoteRequest.postTooLarge的內(nèi)容
postTooLarge
coyoteRequest.postTooLarge=Parameters were not parsed because the size of the posted data was too big. Use the maxPostSize attribute of the connector to resolve this if the application should accept large POSTs.
400
對(duì)于spring boot來說，請求會(huì)報(bào)400，也就是參數(shù)丟失的錯(cuò)誤，比如
org.springframework.web.bind.MissingServletRequestParameterException: Required String parameter 'arg1' is not present
at org.springframework.web.method.annotation.RequestParamMethodArgumentResolver.handleMissingValue(RequestParamMethodArgumentResolver.java:204)
at org.springframework.web.method.annotation.AbstractNamedValueMethodArgumentResolver.resolveArgument(AbstractNamedValueMethodArgumentResolver.java:114)
at org.springframework.web.method.support.HandlerMethodArgumentResolverComposite.resolveArgument(HandlerMethodArgumentResolverComposite.java:121)
at org.springframework.web.method.support.InvocableHandlerMethod.getMethodArgumentValues(InvocableHandlerMethod.java:167)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:134)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:105)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:878)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:792)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:652)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:733)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.CorsFilter.doFilterInternal(CorsFilter.java:92)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:93)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
at net.rakugakibox.spring.boot.logback.access.tomcat.LogbackAccessTomcatValve.invoke(LogbackAccessTomcatValve.java:91)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:690)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:373)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1589)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.base/java.lang.Thread.run(Thread.java:833)TomcatWebServerFactoryCustomizer
spring-boot-autoconfigure-2.3.3.RELEASE-sources.jar!/org/springframework/boot/autoconfigure/web/embedded/TomcatWebServerFactoryCustomizer.java
public void customize(ConfigurableTomcatWebServerFactory factory) {
ServerProperties properties = this.serverProperties;
ServerProperties.Tomcat tomcatProperties = properties.getTomcat();
PropertyMapper propertyMapper = PropertyMapper.get();
propertyMapper.from(tomcatProperties::getBasedir).whenNonNull().to(factory::setBaseDirectory);
propertyMapper.from(tomcatProperties::getBackgroundProcessorDelay).whenNonNull().as(Duration::getSeconds)
.as(Long::intValue).to(factory::setBackgroundProcessorDelay);
customizeRemoteIpValve(factory);
ServerProperties.Tomcat.Threads threadProperties = tomcatProperties.getThreads();
propertyMapper.from(threadProperties::getMax).when(this::isPositive)
.to((maxThreads) -> customizeMaxThreads(factory, threadProperties.getMax()));
propertyMapper.from(threadProperties::getMinSpare).when(this::isPositive)
.to((minSpareThreads) -> customizeMinThreads(factory, minSpareThreads));
propertyMapper.from(this.serverProperties.getMaxHttpHeaderSize()).whenNonNull().asInt(DataSize::toBytes)
.when(this::isPositive)
.to((maxHttpHeaderSize) -> customizeMaxHttpHeaderSize(factory, maxHttpHeaderSize));
propertyMapper.from(tomcatProperties::getMaxSwallowSize).whenNonNull().asInt(DataSize::toBytes)
.to((maxSwallowSize) -> customizeMaxSwallowSize(factory, maxSwallowSize));
propertyMapper.from(tomcatProperties::getMaxHttpFormPostSize).asInt(DataSize::toBytes)
.when((maxHttpFormPostSize) -> maxHttpFormPostSize != 0)
.to((maxHttpFormPostSize) -> customizeMaxHttpFormPostSize(factory, maxHttpFormPostSize));
propertyMapper.from(tomcatProperties::getAccesslog).when(ServerProperties.Tomcat.Accesslog::isEnabled)
.to((enabled) -> customizeAccessLog(factory));
propertyMapper.from(tomcatProperties::getUriEncoding).whenNonNull().to(factory::setUriEncoding);
propertyMapper.from(tomcatProperties::getConnectionTimeout).whenNonNull()
.to((connectionTimeout) -> customizeConnectionTimeout(factory, connectionTimeout));
propertyMapper.from(tomcatProperties::getMaxConnections).when(this::isPositive)
.to((maxConnections) -> customizeMaxConnections(factory, maxConnections));
propertyMapper.from(tomcatProperties::getAcceptCount).when(this::isPositive)
.to((acceptCount) -> customizeAcceptCount(factory, acceptCount));
propertyMapper.from(tomcatProperties::getProcessorCache)
.to((processorCache) -> customizeProcessorCache(factory, processorCache));
propertyMapper.from(tomcatProperties::getRelaxedPathChars).as(this::joinCharacters).whenHasText()
.to((relaxedChars) -> customizeRelaxedPathChars(factory, relaxedChars));
propertyMapper.from(tomcatProperties::getRelaxedQueryChars).as(this::joinCharacters).whenHasText()
.to((relaxedChars) -> customizeRelaxedQueryChars(factory, relaxedChars));
customizeStaticResources(factory);
customizeErrorReportValve(properties.getError(), factory);
}customizeMaxHttpFormPostSize
private void customizeMaxHttpFormPostSize(ConfigurableTomcatWebServerFactory factory, int maxHttpFormPostSize) {
factory.addConnectorCustomizers((connector) -> connector.setMaxPostSize(maxHttpFormPostSize));
}tomcat-embed-core-9.0.37-sources.jar!/org/apache/catalina/connector/Connector.java
/**
* Set the maximum size of a POST which will be automatically
* parsed by the container.
*
* @param maxPostSize The new maximum size in bytes of a POST which will
* be automatically parsed by the container
*/
public void setMaxPostSize(int maxPostSize) {
this.maxPostSize = maxPostSize;
setProperty("maxPostSize", String.valueOf(maxPostSize));
}The maximum size in bytes of the POST which will be handled by the container FORM URL parameter parsing. The limit can be disabled by setting this attribute to a value less than zero. If not specified, this attribute is set to 2097152 (2 megabytes). Note that the FailedRequestFilter can be used to reject requests that exceed this limit.
customizeMaxSwallowSize
private void customizeMaxSwallowSize(ConfigurableTomcatWebServerFactory factory, int maxSwallowSize) {
factory.addConnectorCustomizers((connector) -> {
ProtocolHandler handler = connector.getProtocolHandler();
if (handler instanceof AbstractHttp11Protocol) {
AbstractHttp11Protocol<?> protocol = (AbstractHttp11Protocol<?>) handler;
protocol.setMaxSwallowSize(maxSwallowSize);
}
});
}tomcat-embed-core-9.0.37-sources.jar!/org/apache/coyote/http11/AbstractHttp11Protocol.java
/**
* Maximum amount of request body to swallow.
*/
private int maxSwallowSize = 2 * 1024 * 1024;
public int getMaxSwallowSize() { return maxSwallowSize; }
public void setMaxSwallowSize(int maxSwallowSize) {
this.maxSwallowSize = maxSwallowSize;
}The maximum number of request body bytes (excluding transfer encoding overhead) that will be swallowed by Tomcat for an aborted upload. An aborted upload is when Tomcat knows that the request body is going to be ignored but the client still sends it. If Tomcat does not swallow the body the client is unlikely to see the response. If not specified the default of 2097152 (2 megabytes) will be used. A value of less than zero indicates that no limit should be enforced.
小結(jié)
tomcat提供了maxPostSize及maxSwallowSize兩個(gè)參數(shù)，其中maxPostSize用于限制post表單請求大小，默認(rèn)2M，而maxSwallowSize用于限制aborted upload能夠swallowed的大小。在springboot的2.3.3版本的話，通過server.tomcat.max-http-form-post-size來指定maxPostSize大小。
以上就是springboot tomcat的maxHttpFormPostSize參數(shù)示例解析的詳細(xì)內(nèi)容，更多關(guān)于springboot tomcat maxHttpFormPostSize的資料請關(guān)注腳本之家其它相關(guān)文章！
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