Request header is too large 的问题解决

左手的ㄟ右手 2022-05-25 00:04 328阅读 0赞

### 问题原因 ###

> 一个新增的接口，因为前端传入一段很长的JSON数组，导致了打印台报错

**错误描述**

java.lang.IllegalArgumentException: Request header is too large

### 解决方案 ###

**查阅了一下资料**得到了一个答案

**请求头超过了tomcat的限值。本来post请求是没有参数大小限制，但是服务器有自己的默认大小。**

> **那就修改服务器的大小**

*  **普通tomcat**  
    在server.xml中 `<Connector connectionTimeout="20000" port="8080" protocol="HTTP/1.1" redirectPort="8443" maxPostSize="0" maxHttpHeaderSize ="102400"/>`  
    处加上maxHttpHeaderSize =”102400”
 *  **SpringBoot**  
    SpringBoot项目更方便了，在`application.properties`文件中添加

server.max-http-header-size=102400

### 其他 ###

SpringBoot内置Tomcat的所有配置选项如下：

server. Port = xxxx
    
    server. Address =
    
    server. contextPath =
    
    server. displayName =
    
    server. servletPath =
    
    server. contextParameters =
    
    server. useForwardHeaders =
    
    server. serverHeader =
    
    server. maxHttpHeaderSize =
    
    server. maxHttpPostSize =
    
    server. connectionTimeout =
    
    server. session.timeout =
    
    server. session.trackingModes =
    
    server. session.persistent =
    
    server.session.storeDir =
    
    server.cookie. name =
    
    server.cookie. domain =
    
    server.cookie. path =
    
    server.cookie. comment =
    
    server.cookie. httpOnly =
    
    server.cookie. secure =
    
    server.cookie. maxAge =
    
    server. ssl. Enabled =
    
    server.ssl. clientAuth =
    
    server.ssl. ciphers =
    
    server.ssl. enabledProtocols =
    
    server.ssl. keyAlias =
    
    server.ssl. keyPassword =
    
    server.ssl. keyStore =
    
    server.ssl. keyStorePassword =
    
    server.ssl. keyStoreType =
    
    server.ssl. keyStoreProvider =
    
    server.ssl. trustStore =
    
    server.ssl. trustStorePassword =
    
    server.ssl. trustStoreType =
    
    server.ssl. trustStoreProvider =
    
    server.ssl. protocol =
    
    server.compression. enabled =
    
    server.compression.mimeTypes =
    
    server.compression.excludedUserAgents =
    
    server.compression.minResponseSize =
    
    server. jspServlet. className =
    
    server.jspServlet. initParameters =
    
    server.jspServlet.registered =
    
    server.tomcat.accesslog.enabled =
    
    server.tomcat.accesslog.pattern =
    
    server.tomcat.accesslog.directory =
    
    server.tomcat.accesslog.prefix =
    
    server.tomcat.accesslog.suffix =
    
    server.tomcat.accesslog.rotate =
    
    server.tomcat.accesslog.renameOnRotate =
    
    server.tomcat.accesslog.requestAttributesEnabled=
    
    server.tomcat.accesslog.buffered =
    
    server.tomcat.internalProxies =
    
    server.tomcat.protocolHeader =
    
    server.tomcat.protocolHeaderHttpsValue =
    
    server.tomcat.portHeader =
    
    server.tomcat.remoteIpHeader=
    
    server.tomcat.basedir =
    
    server.tomcat.backgroundProcessorDelay =
    
    server.tomcat.maxThreads =
    
    server.tomcat.minSpareThreads =
    
    server.tomcat.maxHttpPostSize =
    
    server.tomcat.maxHttpHeaderSize =
    
    server.tomcat.redirectContextRoot =
    
    server.tomcat.uriEncoding =
    
    server.tomcat.maxConnections =
    
    server.tomcat.acceptCount =
    
    server.tomcat.additionalTldSkipPatterns =