我正在尝试新的 springboot +Thymeleaf 演示应用程序。 当我点击 localhost:PORT/时，我遇到了以下错误 我尝试了很多在线教程/github 项目，最终都遇到了同样的错误。
这是完整的堆栈跟踪:
java.lang.NoSuchMethodError: 'void org.thymeleaf.standard.processor.AbstractStandardExpressionAttributeTagProcessor.<init>(org.thymeleaf.templatemode.TemplateMode, java.lang.String, java.lang.String, int, boolean, boolean)'
at org.thymeleaf.spring4.processor.SpringActionTagProcessor.<init>(SpringActionTagProcessor.java:75) ~[thymeleaf-spring4-3.0.10.RELEASE.jar:3.0.10.RELEASE]
at org.thymeleaf.spring4.dialect.SpringStandardDialect.createSpringStandardProcessorsSet(SpringStandardDialect.java:341) ~[thymeleaf-spring4-3.0.10.RELEASE.jar:3.0.10.RELEASE]
at org.thymeleaf.spring4.dialect.SpringStandardDialect.getProcessors(SpringStandardDialect.java:258) ~[thymeleaf-spring4-3.0.10.RELEASE.jar:3.0.10.RELEASE]
at org.thymeleaf.DialectSetConfiguration.build(DialectSetConfiguration.java:152) ~[thymeleaf-3.0.7.RELEASE.jar:3.0.7.RELEASE]
at org.thymeleaf.EngineConfiguration.<init>(EngineConfiguration.java:123) ~[thymeleaf-3.0.7.RELEASE.jar:3.0.7.RELEASE]
at org.thymeleaf.TemplateEngine.initialize(TemplateEngine.java:336) ~[thymeleaf-3.0.7.RELEASE.jar:3.0.7.RELEASE]
at org.thymeleaf.TemplateEngine.getConfiguration(TemplateEngine.java:406) ~[thymeleaf-3.0.7.RELEASE.jar:3.0.7.RELEASE]
at org.thymeleaf.spring4.view.ThymeleafView.renderFragment(ThymeleafView.java:255) ~[thymeleaf-spring4-3.0.10.RELEASE.jar:3.0.10.RELEASE]
at org.thymeleaf.spring4.view.ThymeleafView.render(ThymeleafView.java:192) ~[thymeleaf-spring4-3.0.10.RELEASE.jar:3.0.10.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1371) ~[spring-webmvc-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1117) ~[spring-webmvc-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1056) ~[spring-webmvc-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:942) ~[spring-webmvc-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1005) ~[spring-webmvc-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:897) ~[spring-webmvc-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:634) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:882) ~[spring-webmvc-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:741) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.21.jar:9.0.21]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) ~[spring-web-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:109) ~[spring-web-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:92) ~[spring-web-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:109) ~[spring-web-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93) ~[spring-web-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:109) ~[spring-web-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200) ~[spring-web-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:109) ~[spring-web-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:853) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1587) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) ~[na:na]
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) ~[na:na]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
at java.base/java.lang.Thread.run(Thread.java:834) ~[na:na]
thymeleaf 配置:
@Configuration
public class WebConfig implements WebMvcConfigurer {
@Bean
@Description("Thymeleaf template resolver serving HTML 5")
public ClassLoaderTemplateResolver templateResolver() {
var templateResolver = new ClassLoaderTemplateResolver();
templateResolver.setPrefix("templates/");
templateResolver.setCacheable(false);
templateResolver.setSuffix(".html");
templateResolver.setTemplateMode("HTML5");
templateResolver.setCharacterEncoding("UTF-8");
return templateResolver;
}
@Bean
@Description("Thymeleaf template engine with Spring integration")
public SpringTemplateEngine templateEngine() {
var templateEngine = new SpringTemplateEngine();
templateEngine.setTemplateResolver(templateResolver());
return templateEngine;
}
@Bean
@Description("Thymeleaf view resolver")
public ViewResolver viewResolver() {
var viewResolver = new ThymeleafViewResolver();
viewResolver.setTemplateEngine(templateEngine());
viewResolver.setCharacterEncoding("UTF-8");
return viewResolver;
}
@Override
public void addViewControllers(ViewControllerRegistry registry) {
registry.addViewController("/").setViewName("index");
}
}
也尝试过这样的操作(同样出错):
@Configuration
public class ThymeleafConfig {
@Bean
public ClassLoaderTemplateResolver secondaryTemplateResolver() {
ClassLoaderTemplateResolver secondaryTemplateResolver = new ClassLoaderTemplateResolver();
secondaryTemplateResolver.setPrefix("templates");
secondaryTemplateResolver.setSuffix(".html");
secondaryTemplateResolver.setTemplateMode(TemplateMode.HTML);
secondaryTemplateResolver.setCharacterEncoding("UTF-8");
secondaryTemplateResolver.setOrder(1);
secondaryTemplateResolver.setCheckExistence(true);
return secondaryTemplateResolver;
}
@Bean
public SpringTemplateEngine templateEngine() {
SpringTemplateEngine springTemplateEngine = new SpringTemplateEngine();
springTemplateEngine.addTemplateResolver(secondaryTemplateResolver());
return springTemplateEngine;
}
@Bean
public ThymeleafViewResolver viewResolver() {
ThymeleafViewResolver viewResolver = new ThymeleafViewResolver();
viewResolver.setTemplateEngine(templateEngine());
viewResolver.setOrder(1);
return viewResolver;
}
}
我的 Pom.xml:
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.6.RELEASE</version>
<relativePath /> <!-- lookup parent from repository -->
</parent>
<groupId>com.something.somethngelse</groupId>
<artifactId>thymeleaf</artifactId>
<version>1.0.0-SNAPSHOT</version>
<name>thymeleaf</name>
<description>thymeleaf</description>
<properties>
<java.version>11</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jersey</artifactId>
<version>2.1.6.RELEASE</version>
<scope>system</scope>
<systemPath>${basedir}/lib/spring-boot-starter-jersey-2.1.6.RELEASE.jar</systemPath>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
<version>2.2.2.RELEASE</version>
<scope>system</scope>
<systemPath>${basedir}/lib/spring-boot-starter-thymeleaf-2.2.2.RELEASE.jar</systemPath>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.8</version>
<scope>system</scope>
<systemPath>${basedir}/lib/lombok-1.18.8.jar</systemPath>
</dependency>
<dependency>
<groupId>org.thymeleaf</groupId>
<artifactId>thymeleaf-spring4</artifactId>
<version>3.0.10.RELEASE</version>
<scope>system</scope>
<systemPath>${basedir}/lib/thymeleaf-spring4-3.0.10.RELEASE.jar</systemPath>
</dependency>
<dependency>
<groupId>org.thymeleaf</groupId>
<artifactId>thymeleaf</artifactId>
<version>3.0.7.RELEASE</version>
<scope>system</scope>
<systemPath>${basedir}/lib/thymeleaf-3.0.7.RELEASE.jar</systemPath>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-core</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
任何帮助都会很棒。提前致谢。
最佳答案
让 spring boot 决定正确的依赖版本。
Demo App来自 Spring 文档
尝试修改 pom.xml
<dependency>
<groupId>org.thymeleaf</groupId>
<artifactId>thymeleaf-spring4</artifactId>
<version>3.0.10.RELEASE</version>
<scope>system</scope>
<systemPath>${basedir}/lib/thymeleaf-spring4-3.0.10.RELEASE.jar</systemPath>
</dependency>
<dependency>
<groupId>org.thymeleaf</groupId>
<artifactId>thymeleaf</artifactId>
<version>3.0.7.RELEASE</version>
<scope>system</scope>
<systemPath>${basedir}/lib/thymeleaf-3.0.7.RELEASE.jar</systemPath>
</dependency>
至
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
关于java.lang.NoSuchMethodError : 'void org. thymeleaf.standard.processor.AbstractStandardExpressionAttributeTagProcessor，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/60344635/