现象描述：

spring boot 在eclipse里启动正常，但打包后启动不起来。

错误日志如下：

  1. D:\Project>java -jar MKKY_CMS.jar
  2.  
  3.   .   ____          _            __ _ _
  4.  /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
  5. ( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
  6.  \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  7.   '  |____| .__|_| |_|_| |_\__, | / / / /
  8.  =========|_|==============|___/=/_/_/_/
  9.  :: Spring Boot ::        (v2.1.4.RELEASE)
  10.  
  11. 2019-06-12 17:26:15.510  INFO 74468 --- [           main] com.mkky.SuperviseBackstageApplication   : Starting SuperviseBackstageApplication v0.0.1-SNAPSHOT on DESKTOP-405G2C8 with PID 74468 (D:\Project\MKKY_CMS.jar started by dell in D:\Project)
  12. 2019-06-12 17:26:15.513  INFO 74468 --- [           main] com.mkky.SuperviseBackstageApplication   : The following profiles are active: dev
  13. 2019-06-12 17:26:16.049  WARN 74468 --- [           main] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanDefinitionStoreException: Failed to process import candidates for configuration class [com.mkky.SuperviseBackstageApplication]; nested exception is java.lang.IllegalStateException: Error processing condition on org.springframework.boot.autoconfigure.web.servlet.error.ErrorMvcAutoConfiguration$WhitelabelErrorViewConfiguration
  14. 2019-06-12 17:26:16.059  INFO 74468 --- [           main] ConditionEvaluationReportLoggingListener :
  15.  
  16. Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
  17. 2019-06-12 17:26:16.065 ERROR 74468 --- [           main] o.s.boot.SpringApplication               : Application run failed
  18.  
  19. org.springframework.beans.factory.BeanDefinitionStoreException: Failed to process import candidates for configuration class [com.mkky.SuperviseBackstageApplication]; nested exception is java.lang.IllegalStateException: Error processing condition on org.springframework.boot.autoconfigure.web.servlet.error.ErrorMvcAutoConfiguration$WhitelabelErrorViewConfiguration
  20.         at org.springframework.context.annotation.ConfigurationClassParser.processImports(ConfigurationClassParser.java:599) ~[spring-context-5.1.6.RELEASE.jar!/:5.1.6.RELEASE]
  21.         at org.springframework.context.annotation.ConfigurationClassParser.access$900(ConfigurationClassParser.java:108) ~[spring-context-5.1.6.RELEASE.jar!/:5.1.6.RELEASE]
  22.         at org.springframework.context.annotation.ConfigurationClassParser$DeferredImportSelectorGroupingHandler.lambda$processGroupImports$1(ConfigurationClassParser.java:808) ~[spring-context-5.1.6.RELEASE.jar!/:5.1.6.RELEASE]
  23.         at java.util.ArrayList.forEach(ArrayList.java:1249) ~[na:1.8.0_91]
  24.         at org.springframework.context.annotation.ConfigurationClassParser$DeferredImportSelectorGroupingHandler.processGroupImports(ConfigurationClassParser.java:804) ~[spring-context-5.1.6.RELEASE.jar!/:5.1.6.RELEASE]
  25.         at org.springframework.context.annotation.ConfigurationClassParser$DeferredImportSelectorHandler.process(ConfigurationClassParser.java:774) ~[spring-context-5.1.6.RELEASE.jar!/:5.1.6.RELEASE]
  26.         at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:185) ~[spring-context-5.1.6.RELEASE.jar!/:5.1.6.RELEASE]
  27.         at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:315) ~[spring-context-5.1.6.RELEASE.jar!/:5.1.6.RELEASE]
  28.         at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:232) ~[spring-context-5.1.6.RELEASE.jar!/:5.1.6.RELEASE]
  29.         at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:275) ~[spring-context-5.1.6.RELEASE.jar!/:5.1.6.RELEASE]
  30.         at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:95) ~[spring-context-5.1.6.RELEASE.jar!/:5.1.6.RELEASE]
  31.         at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:705) ~[spring-context-5.1.6.RELEASE.jar!/:5.1.6.RELEASE]
  32.         at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:531) ~[spring-context-5.1.6.RELEASE.jar!/:5.1.6.RELEASE]
  33.         at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:142) ~[spring-boot-2.1.4.RELEASE.jar!/:2.1.4.RELEASE]
  34.         at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:775) [spring-boot-2.1.4.RELEASE.jar!/:2.1.4.RELEASE]
  35.         at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) [spring-boot-2.1.4.RELEASE.jar!/:2.1.4.RELEASE]
  36.         at org.springframework.boot.SpringApplication.run(SpringApplication.java:316) [spring-boot-2.1.4.RELEASE.jar!/:2.1.4.RELEASE]
  37.         at org.springframework.boot.SpringApplication.run(SpringApplication.java:1260) [spring-boot-2.1.4.RELEASE.jar!/:2.1.4.RELEASE]
  38.         at org.springframework.boot.SpringApplication.run(SpringApplication.java:1248) [spring-boot-2.1.4.RELEASE.jar!/:2.1.4.RELEASE]
  39.         at com.mkky.SuperviseBackstageApplication.main(SuperviseBackstageApplication.java:16) [classes!/:0.0.1-SNAPSHOT]
  40.         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_91]
  41.         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_91]
  42.         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_91]
  43.         at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_91]
  44.         at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:48) [MKKY_CMS.jar:0.0.1-SNAPSHOT]
  45.         at org.springframework.boot.loader.Launcher.launch(Launcher.java:87) [MKKY_CMS.jar:0.0.1-SNAPSHOT]
  46.         at org.springframework.boot.loader.Launcher.launch(Launcher.java:50) [MKKY_CMS.jar:0.0.1-SNAPSHOT]
  47.         at org.springframework.boot.loader.PropertiesLauncher.main(PropertiesLauncher.java:593) [MKKY_CMS.jar:0.0.1-SNAPSHOT]
  48. Caused by: java.lang.IllegalStateException: Error processing condition on org.springframework.boot.autoconfigure.web.servlet.error.ErrorMvcAutoConfiguration$WhitelabelErrorViewConfiguration
  49.         at org.springframework.boot.autoconfigure.condition.SpringBootCondition.matches(SpringBootCondition.java:64) ~[spring-boot-autoconfigure-2.1.4.RELEASE.jar!/:2.1.4.RELEASE]
  50.         at org.springframework.context.annotation.ConditionEvaluator.shouldSkip(ConditionEvaluator.java:108) ~[spring-context-5.1.6.RELEASE.jar!/:5.1.6.RELEASE]
  51.         at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:218) ~[spring-context-5.1.6.RELEASE.jar!/:5.1.6.RELEASE]
  52.         at org.springframework.context.annotation.ConfigurationClassParser.processMemberClasses(ConfigurationClassParser.java:361) ~[spring-context-5.1.6.RELEASE.jar!/:5.1.6.RELEASE]
  53.         at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:263) ~[spring-context-5.1.6.RELEASE.jar!/:5.1.6.RELEASE]
  54.         at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:242) ~[spring-context-5.1.6.RELEASE.jar!/:5.1.6.RELEASE]
  55.         at org.springframework.context.annotation.ConfigurationClassParser.processImports(ConfigurationClassParser.java:589) ~[spring-context-5.1.6.RELEASE.jar!/:5.1.6.RELEASE]
  56.         ... 27 common frames omitted
  57. Caused by: java.lang.IllegalArgumentException: name
  58.         at sun.misc.URLClassPath$Loader.findResource(URLClassPath.java:658) ~[na:1.8.0_91]
  59.         at sun.misc.URLClassPath.findResource(URLClassPath.java:188) ~[na:1.8.0_91]
  60.         at java.net.URLClassLoader$2.run(URLClassLoader.java:569) ~[na:1.8.0_91]
  61.         at java.net.URLClassLoader$2.run(URLClassLoader.java:567) ~[na:1.8.0_91]
  62.         at java.security.AccessController.doPrivileged(Native Method) ~[na:1.8.0_91]
  63.         at java.net.URLClassLoader.findResource(URLClassLoader.java:566) ~[na:1.8.0_91]
  64.         at org.springframework.boot.loader.LaunchedURLClassLoader.findResource(LaunchedURLClassLoader.java:57) ~[MKKY_CMS.jar:0.0.1-SNAPSHOT]
  65.         at java.lang.ClassLoader.getResource(ClassLoader.java:1096) ~[na:1.8.0_91]
  66.         at org.springframework.core.io.ClassPathResource.resolveURL(ClassPathResource.java:155) ~[spring-core-5.1.6.RELEASE.jar!/:5.1.6.RELEASE]
  67.         at org.springframework.core.io.ClassPathResource.exists(ClassPathResource.java:142) ~[spring-core-5.1.6.RELEASE.jar!/:5.1.6.RELEASE]
  68.         at org.springframework.boot.autoconfigure.thymeleaf.ThymeleafTemplateAvailabilityProvider.isTemplateAvailable(ThymeleafTemplateAvailabilityProvider.java:44) ~[spring-boot-autoconfigure-2.1.4.RELEASE.jar!/:2.1.4.RELEASE]
  69.         at org.springframework.boot.autoconfigure.template.TemplateAvailabilityProviders.findProvider(TemplateAvailabilityProviders.java:158) ~[spring-boot-autoconfigure-2.1.4.RELEASE.jar!/:2.1.4.RELEASE]
  70.         at org.springframework.boot.autoconfigure.template.TemplateAvailabilityProviders.getProvider(TemplateAvailabilityProviders.java:145) ~[spring-boot-autoconfigure-2.1.4.RELEASE.jar!/:2.1.4.RELEASE]
  71.         at org.springframework.boot.autoconfigure.web.servlet.error.ErrorMvcAutoConfiguration$ErrorTemplateMissingCondition.getMatchOutcome(ErrorMvcAutoConfiguration.java:195) ~[spring-boot-autoconfigure-2.1.4.RELEASE.jar!/:2.1.4.RELEASE]
  72.         at org.springframework.boot.autoconfigure.condition.SpringBootCondition.matches(SpringBootCondition.java:47) ~[spring-boot-autoconfigure-2.1.4.RELEASE.jar!/:2.1.4.RELEASE]
  73.         ... 33 common frames omitted

问题解决路径

1. 最初怀疑是打包时缺少依赖包造成的，修改打包的方式

  1. <build>
  2.         <finalName>xxxxx</finalName>
  3.         <plugins>
  4.              <plugin>
  5.                 <groupId>org.apache.maven.plugins</groupId>
  6.                 <artifactId>maven-compiler-plugin</artifactId>
  7.                 <configuration>
  8.                     <source>1.8</source>
  9.                     <target>1.8</target>
  10.                     <encoding>UTF-8</encoding>
  11.                 </configuration>
  12.             </plugin>
  13.             <plugin>
  14.                 <groupId>org.springframework.boot</groupId>
  15.                 <artifactId>spring-boot-maven-plugin</artifactId>
  16.                 <configuration>
  17.                     <fork>true</fork>
  18.                     <mainClass>com.xx</mainClass>
  19.                     <layout>ZIP</layout>
  20.                 </configuration>
  21.                 <executions>
  22.                     <execution>
  23.                         <goals>
  24.                             <goal>repackage</goal>
  25.                         </goals>
  26.                     </execution>
  27.                 </executions>
  28.                 </plugin>
  29.         </plugins>
  30.     </build>

依赖包没有问题，还是报同样的错误。

2. 排除依赖包的问题后，怀疑是jar包冲突的问题，网上有类似的

https://stackoverflow.com/questions/32758000/java-lang-illegalstateexception-error-processing-condition-on-org-springframewo

使用dependence查了  没有不同版本的依赖，排除

3.怀疑是*config.java的配置问题，一个个移除进行测试，也排除掉了

4.根据日志怀疑是Controller里排除的异常页面有问题，排查后没有发现

5.怀疑是application_*.properties的配置问题

一项项排查，发现跟这个有关

spring.thymeleaf.prefix=static:/web/

去除这个选项后，重新打包后可以启动成功。

翻看源码ThymeleafProperties.java

  1. /**
  2.  * Properties for Thymeleaf.
  3.  *
  4.  * @author Stephane Nicoll
  5.  * @author Brian Clozel
  6.  * @author Daniel Fern谩ndez
  7.  * @author Kazuki Shimizu
  8.  * @since 1.2.0
  9.  */
  10. @ConfigurationProperties(prefix = "spring.thymeleaf")
  11. public class ThymeleafProperties {
  12.  
  13.     private static final Charset DEFAULT_ENCODING = StandardCharsets.UTF_8;
  14.  
  15.     public static final String DEFAULT_PREFIX = "classpath:/templates/"; //1
  16.  
  17.     public static final String DEFAULT_SUFFIX = ".html";
  18.  
  19.     /**
  20.      * Whether to check that the template exists before rendering it.
  21.      */
  22.     private boolean checkTemplate = true;
  23.  
  24.     /**
  25.      * Whether to check that the templates location exists.
  26.      */
  27.     private boolean checkTemplateLocation = true;
  28.  
  29.     /**
  30.      * Prefix that gets prepended to view names when building a URL.
  31.      */
  32.     private String prefix = DEFAULT_PREFIX;
  33.  
  34.     /**
  35.      * Suffix that gets appended to view names when building a URL.
  36.      */
  37.     private String suffix = DEFAULT_SUFFIX;
  38.  
  39.     /**
  40.      * Template mode to be applied to templates. See also Thymeleaf's TemplateMode enum.
  41.      */
  42.     private String mode = "HTML";
  43.  
  44.     /**
  45.      * Template files encoding.
  46.      */
  47.     private Charset encoding = DEFAULT_ENCODING;
  48.  
  49.     /**
  50.      * Whether to enable template caching.
  51.      */
  52.     private boolean cache = true;
  53.  
  54.     /**
  55.      * Order of the template resolver in the chain. By default, the template resolver is
  56.      * first in the chain. Order start at 1 and should only be set if you have defined
  57.      * additional "TemplateResolver" beans.
  58.      */
  59.     private Integer templateResolverOrder;
  60.  
  61.     /**
  62.      * Comma-separated list of view names (patterns allowed) that can be resolved.
  63.      */
  64.     private String[] viewNames;
  65.  
  66.     /**
  67.      * Comma-separated list of view names (patterns allowed) that should be excluded from
  68.      * resolution.
  69.      */
  70.     private String[] excludedViewNames;
  71.  
  72.     /**
  73.      * Enable the SpringEL compiler in SpringEL expressions.
  74.      */
  75.     private boolean enableSpringElCompiler;
  76.  
  77.     /**
  78.      * Whether hidden form inputs acting as markers for checkboxes should be rendered
  79.      * before the checkbox element itself.
  80.      */
  81.     private boolean renderHiddenMarkersBeforeCheckboxes = false;
  82.  
  83.     /**
  84.      * Whether to enable Thymeleaf view resolution for Web frameworks.
  85.      */
  86.     private boolean enabled = true;
  87.  
  88.     private final Servlet servlet = new Servlet();
  89.  
  90.     private final Reactive reactive = new Reactive();
  91.  
  92.     public boolean isEnabled() {
  93.         return this.enabled;
  94.     }
  95.  
  96.     public void setEnabled(boolean enabled) {
  97.         this.enabled = enabled;
  98.     }
  99.  
  100.     public boolean isCheckTemplate() {
  101.         return this.checkTemplate;
  102.     }
  103.  
  104.     public void setCheckTemplate(boolean checkTemplate) {
  105.         this.checkTemplate = checkTemplate;
  106.     }
  107.  
  108.     public boolean isCheckTemplateLocation() {
  109.         return this.checkTemplateLocation;
  110.     }
  111.  
  112.     public void setCheckTemplateLocation(boolean checkTemplateLocation) {
  113.         this.checkTemplateLocation = checkTemplateLocation;
  114.     }
  115.  
  116.     public String getPrefix() {
  117.         return this.prefix;
  118.     }
  119.  
  120.     public void setPrefix(String prefix) {
  121.         this.prefix = prefix;
  122.     }
  123.  
  124.     public String getSuffix() {
  125.         return this.suffix;
  126.     }
  127.  
  128.     public void setSuffix(String suffix) {
  129.         this.suffix = suffix;
  130.     }
  131.  
  132.     public String getMode() {
  133.         return this.mode;
  134.     }
  135.  
  136.     public void setMode(String mode) {
  137.         this.mode = mode;
  138.     }
  139.  
  140.     public Charset getEncoding() {
  141.         return this.encoding;
  142.     }
  143.  
  144.     public void setEncoding(Charset encoding) {
  145.         this.encoding = encoding;
  146.     }
  147.  
  148.     public boolean isCache() {
  149.         return this.cache;
  150.     }
  151.  
  152.     public void setCache(boolean cache) {
  153.         this.cache = cache;
  154.     }
  155.  
  156.     public Integer getTemplateResolverOrder() {
  157.         return this.templateResolverOrder;
  158.     }
  159.  
  160.     public void setTemplateResolverOrder(Integer templateResolverOrder) {
  161.         this.templateResolverOrder = templateResolverOrder;
  162.     }
  163.  
  164.     public String[] getExcludedViewNames() {
  165.         return this.excludedViewNames;
  166.     }
  167.  
  168.     public void setExcludedViewNames(String[] excludedViewNames) {
  169.         this.excludedViewNames = excludedViewNames;
  170.     }
  171.  
  172.     public String[] getViewNames() {
  173.         return this.viewNames;
  174.     }
  175.  
  176.     public void setViewNames(String[] viewNames) {
  177.         this.viewNames = viewNames;
  178.     }
  179.  
  180.     public boolean isEnableSpringElCompiler() {
  181.         return this.enableSpringElCompiler;
  182.     }
  183.  
  184.     public void setEnableSpringElCompiler(boolean enableSpringElCompiler) {
  185.         this.enableSpringElCompiler = enableSpringElCompiler;
  186.     }
  187.  
  188.     public boolean isRenderHiddenMarkersBeforeCheckboxes() {
  189.         return this.renderHiddenMarkersBeforeCheckboxes;
  190.     }
  191.  
  192.     public void setRenderHiddenMarkersBeforeCheckboxes(
  193.             boolean renderHiddenMarkersBeforeCheckboxes) {
  194.         this.renderHiddenMarkersBeforeCheckboxes = renderHiddenMarkersBeforeCheckboxes;
  195.     }
  196.  
  197.     public Reactive getReactive() {
  198.         return this.reactive;
  199.     }
  200.  
  201.     public Servlet getServlet() {
  202.         return this.servlet;
  203.     }
  204.  
  205.     public static class Servlet {
  206.  
  207.         /**
  208.          * Content-Type value written to HTTP responses.
  209.          */
  210.         private MimeType contentType = MimeType.valueOf("text/html");
  211.  
  212.         /**
  213.          * Whether Thymeleaf should start writing partial output as soon as possible or
  214.          * buffer until template processing is finished.
  215.          */
  216.         private boolean producePartialOutputWhileProcessing = true;
  217.  
  218.         public MimeType getContentType() {
  219.             return this.contentType;
  220.         }
  221.  
  222.         public void setContentType(MimeType contentType) {
  223.             this.contentType = contentType;
  224.         }
  225.  
  226.         public boolean isProducePartialOutputWhileProcessing() {
  227.             return this.producePartialOutputWhileProcessing;
  228.         }
  229.  
  230.         public void setProducePartialOutputWhileProcessing(
  231.                 boolean producePartialOutputWhileProcessing) {
  232.             this.producePartialOutputWhileProcessing = producePartialOutputWhileProcessing;
  233.         }
  234.  
  235.     }
  236.  
  237.     public static class Reactive {
  238.  
  239.         /**
  240.          * Maximum size of data buffers used for writing to the response. Templates will
  241.          * execute in CHUNKED mode by default if this is set.
  242.          */
  243.         private DataSize maxChunkSize = DataSize.ofBytes(0);
  244.  
  245.         /**
  246.          * Media types supported by the view technology.
  247.          */
  248.         private List<MediaType> mediaTypes;
  249.  
  250.         /**
  251.          * Comma-separated list of view names (patterns allowed) that should be executed
  252.          * in FULL mode even if a max chunk size is set.
  253.          */
  254.         private String[] fullModeViewNames;
  255.  
  256.         /**
  257.          * Comma-separated list of view names (patterns allowed) that should be the only
  258.          * ones executed in CHUNKED mode when a max chunk size is set.
  259.          */
  260.         private String[] chunkedModeViewNames;
  261.  
  262.         public List<MediaType> getMediaTypes() {
  263.             return this.mediaTypes;
  264.         }
  265.  
  266.         public void setMediaTypes(List<MediaType> mediaTypes) {
  267.             this.mediaTypes = mediaTypes;
  268.         }
  269.  
  270.         public DataSize getMaxChunkSize() {
  271.             return this.maxChunkSize;
  272.         }
  273.  
  274.         public void setMaxChunkSize(DataSize maxChunkSize) {
  275.             this.maxChunkSize = maxChunkSize;
  276.         }
  277.  
  278.         public String[] getFullModeViewNames() {
  279.             return this.fullModeViewNames;
  280.         }
  281.  
  282.         public void setFullModeViewNames(String[] fullModeViewNames) {
  283.             this.fullModeViewNames = fullModeViewNames;
  284.         }
  285.  
  286.         public String[] getChunkedModeViewNames() {
  287.             return this.chunkedModeViewNames;
  288.         }
  289.  
  290.         public void setChunkedModeViewNames(String[] chunkedModeViewNames) {
  291.             this.chunkedModeViewNames = chunkedModeViewNames;
  292.         }
  293.  
  294.     }
  295.  
  296. }

配置前缀的路径有问题。

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