针对SpringBoot嵌入式Tomcat依赖关系在启动时引发异常和springboot内嵌tomcat启动原理这两个问题，本篇文章进行了详细的解答，同时本文还将给你拓展java–SpringBoot

针对Spring Boot嵌入式Tomcat依赖关系在启动时引发异常和springboot内嵌tomcat启动原理这两个问题，本篇文章进行了详细的解答，同时本文还将给你拓展java – Spring Boot 2.1嵌入式Tomcat – 密钥库密码不正确、Spring Boot-替换默认的嵌入式Tomcat连接器、Spring Boot启用/禁用带有配置文件的嵌入式Tomcat、Spring Boot嵌入式Tomcat“ application / json”发布请求限制为10KB等相关知识，希望可以帮助到你。

• Spring Boot嵌入式Tomcat依赖关系在启动时引发异常（springboot内嵌tomcat启动原理）
• java – Spring Boot 2.1嵌入式Tomcat – 密钥库密码不正确
• Spring Boot-替换默认的嵌入式Tomcat连接器
• Spring Boot启用/禁用带有配置文件的嵌入式Tomcat
• Spring Boot嵌入式Tomcat“ application / json”发布请求限制为10KB

Spring Boot嵌入式Tomcat依赖关系在启动时引发异常（springboot内嵌tomcat启动原理）

我正在从JBoss /
Wildfly移植一个旧应用程序以在tomcat上运行。我可以使用网络上的资源完成的大多数工作。但是，我对最新一期不太满意。我很早就知道我必须补充

providedRuntime(''org.apache.tomcat.embed:tomcat-embed-jasper'')

作为请求路由的依赖项。如果不包括此依赖项，则发出请求时会出现404错误。现在，这似乎对我的应用程序没有任何不利影响，但是如果没有错误，我将不理解启动错误。

为此的目标环境是运行Tomcat 8的AWS，并且在部署时工作正常。我只看到此错误在本地运行（启用了调试）：

2017-04-10 09:40:26.957 DEBUG 45630 --- [ost-startStop-1] o.a.tomcat.util.scan.StandardJarScanner  : Scanning JAR [file:/Users/bhodgson/.gradle/caches/modules-2/files-2.1/org.apache.velocity/velocity/1.6.2/1b470ec12a9b8aa69b0458a7e477dacb2cbdd6a0/velocity-1.6.2.jar] from classpath2017-04-10 09:40:26.958 DEBUG 45630 --- [ost-startStop-1] o.a.tomcat.util.scan.StandardJarScanner  : Scanning JAR [file:/Users/bhodgson/.gradle/caches/modules-2/files-2.1/net.minidev/accessors-smart/1.1/a527213f2fea112a04c9bdf0ec0264e34104cd08/accessors-smart-1.1.jar] from classpath2017-04-10 09:40:26.958 DEBUG 45630 --- [ost-startStop-1] o.a.tomcat.util.scan.StandardJarScanner  : Scanning JAR [file:/Users/bhodgson/.gradle/caches/modules-2/files-2.1/com.googlecode.json-simple/json-simple/1.1.1/c9ad4a0850ab676c5c64461a05ca524cdfff59f1/json-simple-1.1.1.jar] from classpath2017-04-10 09:40:26.958 DEBUG 45630 --- [ost-startStop-1] o.a.tomcat.util.scan.StandardJarScanner  : Scanning JAR [file:/Users/bhodgson/.gradle/caches/modules-2/files-2.1/org.objenesis/objenesis/2.1/87c0ea803b69252868d09308b4618f766f135a96/objenesis-2.1.jar] from classpath2017-04-10 09:40:26.959 DEBUG 45630 --- [ost-startStop-1] o.a.tomcat.util.scan.StandardJarScanner  : Scanning JAR [file:/Users/bhodgson/.gradle/caches/modules-2/files-2.1/com.sun.xml.bind/jaxb-core/2.2.11/c3f87d654f8d5943cd08592f3f758856544d279a/jaxb-api.jar] from classpath2017-04-10 09:40:26.963  WARN 45630 --- [ost-startStop-1] o.a.tomcat.util.scan.StandardJarScanner  : Failed to scan [file:/Users/bhodgson/.gradle/caches/modules-2/files-2.1/com.sun.xml.bind/jaxb-core/2.2.11/c3f87d654f8d5943cd08592f3f758856544d279a/jaxb-api.jar] from classloader hierarchyjava.io.FileNotFoundException: /Users/bhodgson/.gradle/caches/modules-2/files-2.1/com.sun.xml.bind/jaxb-core/2.2.11/c3f87d654f8d5943cd08592f3f758856544d279a/jaxb-api.jar (No such file or directory)    at java.util.zip.ZipFile.open(Native Method) ~[na:1.8.0_121]    at java.util.zip.ZipFile.<init>(ZipFile.java:219) ~[na:1.8.0_121]    at java.util.zip.ZipFile.<init>(ZipFile.java:149) ~[na:1.8.0_121]    at java.util.jar.JarFile.<init>(JarFile.java:166) ~[na:1.8.0_121]    at java.util.jar.JarFile.<init>(JarFile.java:130) ~[na:1.8.0_121]    at org.apache.tomcat.util.scan.JarFileUrlJar.<init>(JarFileUrlJar.java:60) ~[tomcat-embed-core-8.5.11.jar:8.5.11]    at org.apache.tomcat.util.scan.JarFactory.newInstance(JarFactory.java:48) ~[tomcat-embed-core-8.5.11.jar:8.5.11]    at org.apache.tomcat.util.scan.StandardJarScanner.process(StandardJarScanner.java:338) ~[tomcat-embed-core-8.5.11.jar:8.5.11]    at org.apache.tomcat.util.scan.StandardJarScanner.scan(StandardJarScanner.java:288) ~[tomcat-embed-core-8.5.11.jar:8.5.11]    at org.apache.jasper.servlet.TldScanner.scanJars(TldScanner.java:262) [tomcat-embed-jasper-8.5.11.jar:8.5.11]    at org.apache.jasper.servlet.TldScanner.scan(TldScanner.java:104) [tomcat-embed-jasper-8.5.11.jar:8.5.11]    at org.apache.jasper.servlet.JasperInitializer.onStartup(JasperInitializer.java:101) [tomcat-embed-jasper-8.5.11.jar:8.5.11]    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5178) [tomcat-embed-core-8.5.11.jar:8.5.11]    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) [tomcat-embed-core-8.5.11.jar:8.5.11]    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1419) [tomcat-embed-core-8.5.11.jar:8.5.11]    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1409) [tomcat-embed-core-8.5.11.jar:8.5.11]    at java.util.concurrent.FutureTask.run(FutureTask.java:266) [na:1.8.0_121]    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_121]    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_121]    at java.lang.Thread.run(Thread.java:745) [na:1.8.0_121]java.io.FileNotFoundException: /Users/bhodgson/.gradle/caches/modules-2/files-2.1/com.sun.xml.bind/jaxb-impl/2.2.11/a49ce57aee680f9435f49ba6ef427d38c93247a6/jaxb-core.jar (No such file or directory)    at java.util.zip.ZipFile.open(Native Method) ~[na:1.8.0_121]    at java.util.zip.ZipFile.<init>(ZipFile.java:219) ~[na:1.8.0_121]    at java.util.zip.ZipFile.<init>(ZipFile.java:149) ~[na:1.8.0_121]    at java.util.jar.JarFile.<init>(JarFile.java:166) ~[na:1.8.0_121]    at java.util.jar.JarFile.<init>(JarFile.java:130) ~[na:1.8.0_121]

问题是，依赖项解析失败，因为没有附加到扫描的JAR路径的版本。这是丢失文件的本地存储库：

bhodgson-mbp:a49ce57aee680f9435f49ba6ef427d38c93247a6 bhodgson$ pwd/Users/bhodgson/.gradle/caches/modules-2/files-2.1/com.sun.xml.bind/jaxb-impl/2.2.11/a49ce57aee680f9435f49ba6ef427d38c93247a6bhodgson-mbp:a49ce57aee680f9435f49ba6ef427d38c93247a6 bhodgson$ ls -lttotal 2048-rw-r--r--  1 bhodgson  staff  1047863 Apr 10 08:44 jaxb-impl-2.2.11.jar

仅对于jaxb-impl和jaxb-core会发生这种情况

我曾尝试清理依赖冲突，但是除了一个较旧版本的jaxb-impl作为暂态依赖以外，没有找到其他东西。

那我该怎么办？我看到所有的依赖项都已从Gradle缓存中解析出来，但是不明白为什么所请求的依赖项没有解析为正确的版本。我会猜测，因为这通常包含在JRE /
JDK或Tomcat本身中。

这是我的gradle文件：

buildscript {    ext {        springBootVersion = ''1.5.2.RELEASE''    }    repositories {        mavenCentral()    }    dependencies {        classpath("org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}")    }}apply plugin: ''java''apply plugin: ''eclipse-wtp''apply plugin: ''org.springframework.boot''apply plugin: ''war''war {    archiveName = "ROOT.war"    destinationDir = new File("${rootDir}/runway/FS_ROOT/opt/tomcat/webapps/")}sourceCompatibility = 1.8repositories {    mavenCentral()}configurations {    providedRuntime}dependencies {    compile(''org.springframework.boot:spring-boot-starter-web'')    compile(''org.springframework.boot:spring-boot-starter-security'')    compile(''org.springframework:spring-oxm:4.3.5.RELEASE'')    compile(''org.springframework.webflow:spring-webflow:2.4.4.RELEASE'')    compile(''org.springframework.security:spring-security-taglibs'')    compile(''commons-lang:commons-lang:2.6'')    compile(''commons-io:commons-io:2.1'')    compile(''commons-logging:commons-logging:1.2'')    compile(''commons-digester:commons-digester:2.1'')    compile(''commons-beanutils:commons-beanutils:1.9.3'')    compile(''commons-fileupload:commons-fileupload:1.2.2'')    compile(''commons-codec:commons-codec:1.8'')    compile(''joda-time:joda-time:2.1'')    compile(''com.jcraft:jsch:0.1.42'')    compile(''org.codehaus.jackson:jackson-mapper-asl:1.9.5'')    compile(''com.sun.jersey:jersey-client:1.19.3'')    compile(''com.sun.jersey.contribs:jersey-spring:1.19.3'')    compile(''com.sun.jersey:jersey-json:1.19.3''){        exclude module: ''jaxb-impl''     }    compile(''javax.servlet:javax.servlet-api:3.1.0'')    compile(''javax.servlet.jsp:jsp-api:2.2'')    compile(''org.apache.cxf:cxf-rt-frontend-jaxws:3.1.6'')    compile(''org.apache.cxf:cxf-rt-transports-http:3.1.6'')    compile(''org.apache.tiles:tiles-core:3.0.7'')    compile(''org.apache.tiles:tiles-extras:3.0.7'')    compile(''org.apache.tiles:tiles-servlet:3.0.7'')    compile(''org.apache.tiles:tiles-jsp:3.0.7'')    compile(''org.apache.tiles:tiles-api:3.0.7'')    compile(''org.apache.tiles:tiles-template:3.0.7'')    compile(''com.github.dandelion:datatables-jsp:1.1.0'')    compile(''com.github.dandelion:datatables-compression-yui:0.9.3'')    compile(''com.github.dandelion:datatables-servlet2:0.9.3'')    compile(''com.sun.xml.bind:jaxb-core:2.2.11'')    compile(''com.sun.xml.bind:jaxb-impl:2.2.11'')    testCompile(''org.testng:testng:6.3.1'')    testCompile(''org.easymock:easymock:3.1'')    testCompile(''org.springframework.boot:spring-boot-starter-test'')    providedRuntime(''javax.servlet:jstl'')    providedRuntime(''org.apache.tomcat.embed:tomcat-embed-jasper'')    providedRuntime(''org.springframework.boot:spring-boot-starter-tomcat'')}

答案1

我遇到了同样的问题，并做了一些研究。

问题是tomcat TldScanner在jar中搜索tld文件。它使用StandardJarScanner并根据Tomcat Issue
59226递归搜索在jar清单中在Class-
Path头下定义的jar
。

为了构造清单中找到的依赖项的路径，它将依赖项名称附加到源jar路径。它适用于同一目录中的jar，例如爆炸war中的lib目录或tomcat
lib目录中的jar，但在从.m2或.gradle缓存构造的类路径的情况下会失败：

从

/Users/bhodgson/.gradle/caches/modules-2/files-2.1/com.sun.xml.bind/jaxb-core/2.2.11/c3f87d654f8d5943cd08592f3f758856544d279a/jaxb-core.jar

与jaxb-api.jar清单连接，结果路径无效

/Users/bhodgson/.gradle/caches/modules-2/files-2.1/com.sun.xml.bind/jaxb-core/2.2.11/c3f87d654f8d5943cd08592f3f758856544d279a/jaxb-api.jar

例如，当您从IDE启动应用程序时，可能会发生这种情况。

java – Spring Boot 2.1嵌入式Tomcat – 密钥库密码不正确

java.security.UnrecoverableKeyException: Failed to decrypt safe contents entry:
    javax.crypto.BadPaddingException: pad block corrupted

@Bean
public brokerService broker() throws Exception {
    final brokerService broker = new brokerService();

server.contextpath=/my
server.tomcat.additional-tld-skip-patterns=*.jar
server.compression.enabled=true
server.port=443
server.ssl.key-store:classpath:local-keystore.jks
server.ssl.key-store-password:password
server.ssl.keyStoreType:JKS
server.ssl.keyAlias:tomcat

org.apache.catalina.LifecycleException: Protocol handler start Failed
    at org.apache.catalina.connector.Connector.startInternal(Connector.java:1001)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
    at org.apache.catalina.core.StandardService.addConnector(StandardService.java:225)
    at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.addPrevIoUslyRemovedConnectors(TomcatWebServer.java:259)
    at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.start(TomcatWebServer.java:197)
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.startWebServer(ServletWebServerApplicationContext.java:311)
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.finishRefresh(ServletWebServerApplicationContext.java:164)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:549)
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:142)
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:775)
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:316)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1260)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1248)
    at com.jjkane.Application.main(Application.java:65)
Caused by: java.lang.IllegalArgumentException: keystore password was incorrect
    at org.apache.tomcat.util.net.AbstractJsseEndpoint.createSSLContext(AbstractJsseEndpoint.java:114)
    at org.apache.tomcat.util.net.AbstractJsseEndpoint.initialiseSsl(AbstractJsseEndpoint.java:85)
    at org.apache.tomcat.util.net.NioEndpoint.bind(NioEndpoint.java:224)
    at org.apache.tomcat.util.net.AbstractEndpoint.bindWithCleanup(AbstractEndpoint.java:1067)
    at org.apache.tomcat.util.net.AbstractEndpoint.start(AbstractEndpoint.java:1149)
    at org.apache.coyote.AbstractProtocol.start(AbstractProtocol.java:561)
    at org.apache.catalina.connector.Connector.startInternal(Connector.java:998)
    ... 14 common frames omitted
Caused by: java.io.IOException: keystore password was incorrect
    at java.base/sun.security.pkcs12.PKCS12KeyStore.engineLoad(PKCS12KeyStore.java:2108)
    at java.base/sun.security.util.KeyStoreDelegator.engineLoad(KeyStoreDelegator.java:243)
    at java.base/java.security.KeyStore.load(KeyStore.java:1479)
    at org.apache.tomcat.util.net.SSLUtilBase.getStore(SSLUtilBase.java:179)
    at org.apache.tomcat.util.net.SSLHostConfigCertificate.getCertificateKeystore(SSLHostConfigCertificate.java:204)
    at org.apache.tomcat.util.net.jsse.JSSEUtil.getKeyManagers(JSSEUtil.java:203)
    at org.apache.tomcat.util.net.AbstractJsseEndpoint.createSSLContext(AbstractJsseEndpoint.java:112)
    ... 20 common frames omitted
 java.security.UnrecoverableKeyException: Failed to decrypt safe contents entry:
        javax.crypto.BadPaddingException: pad block corrupted

server.contextpath=/my
server.tomcat.additional-tld-skip-patterns=*.jar
server.compression.enabled=true
server.port=443
server.ssl.key-store=classpath:local-keystore.p12
server.ssl.key-store-password=tomcat
server.ssl.key-password=tomcat
server.ssl.keyStoreType=PKCS12
server.ssl.keyAlias=tomcat

Spring Boot-替换默认的嵌入式Tomcat连接器

@Bean
public EmbeddedServletContainerFactory tomcat() {
    TomcatEmbeddedServletContainerFactory myFactory = new TomcatEmbeddedServletContainerFactory();
    myFactory.setProtocol("AJP/1.3");
    myFactory.setPort(9000);
    return myFactory;
}

@Bean
public EmbeddedServletContainerCustomizer containerCustomizer2() {
    return new EmbeddedServletContainerCustomizer() {
        @Override
        public void customize(ConfigurableEmbeddedServletContainer container) {
            TomcatEmbeddedServletContainerFactory tomcat = (TomcatEmbeddedServletContainerFactory) container;
            tomcat.addConnectorCustomizers(new TomcatConnectorCustomizer() {
                @Override
                public void customize(Connector connector) {
                    connector.setRedirectPort(9001);
                }
            });
        }
    };
}

Spring Boot启用/禁用带有配置文件的嵌入式Tomcat

@SpringBootApplication(exclude = {EmbeddedServletContainerAutoConfiguration.class, 
                                  WebMvcAutoConfiguration.class})

spring.main.web-environment=false

@Profile({"REST"})
@Configuration
@Import(EmbeddedServletContainerAutoConfiguration.class)
public class HttpConfiguration {
    // ...
}

@Profile({"REST"})
@Configuration
@EnableWebMvc
public class HttpConfiguration{
 .
 .
 .
}

@Profile({"JMS"})
@Configuration
@EnableJms
public class JMSConfiguration{
 .
 .
 .
}