【发布时间】：2021-01-23 08:14:16
【问题描述】：
我已经安装了tomcat-9.0.41 我构建了 cas-overlay-template 6.3 并将 cas.war 放在 webapps 中 启动服务器，一切正常。
然后我构建 cas-management-overlay 6.3 将 cas-management.war 放在 webapps 中，但是当我重新启动 tomcat 时，当 tomcat 尝试加载时出现以下错误
首先，我不明白确切的问题是什么，以及我应该如何更正该操作正在谈论的这个“类路径”。
任何帮助将不胜感激！
2021-01-22 20:39:04,641 WARN [org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext] - <Exception encountered during context initialization - cancelling refresh attempt: org.springframework.context.ApplicationContextException: Unable to start web server; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'formContentFilter' defined in class path resource [org/springframework/boot/autoconfigure/web/servlet/WebMvcAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.boot.web.servlet.filter.OrderedFormContentFilter]: Factory method 'formContentFilter' threw exception; nested exception is java.lang.NoSuchMethodError: 'com.fasterxml.jackson.databind.cfg.MutableCoercionConfig com.fasterxml.jackson.dataformat.xml.XmlMapper.coercionConfigDefaults()'>
2021-01-22 20:39:04,666 ERROR [org.springframework.boot.diagnostics.LoggingFailureAnalysisReporter] - <
***************************
APPLICATION FAILED TO START
***************************
Description:
An attempt was made to call a method that does not exist. The attempt was made from the following location:
com.fasterxml.jackson.dataformat.xml.XmlMapper.<init>(XmlMapper.java:175)
The following method did not exist:
'com.fasterxml.jackson.databind.cfg.MutableCoercionConfig com.fasterxml.jackson.dataformat.xml.XmlMapper.coercionConfigDefaults()'
The method's class, com.fasterxml.jackson.dataformat.xml.XmlMapper, is available from the following locations:
jar:file:/opt/cas/tomcat-9.0.41/webapps/cas-management/WEB-INF/lib/jackson-dataformat-xml-2.12.0.jar!/com/fasterxml/jackson/dataformat/xml/XmlMapper.class
The class hierarchy was loaded from the following locations:
com.fasterxml.jackson.dataformat.xml.XmlMapper: file:/opt/cas/tomcat-9.0.41/webapps/cas-management/WEB-INF/lib/jackson-dataformat-xml-2.12.0.jar
com.fasterxml.jackson.databind.ObjectMapper: file:/opt/cas/tomcat-9.0.41/webapps/cas-management/WEB-INF/lib/jackson-databind-2.11.3.jar
com.fasterxml.jackson.core.ObjectCodec: file:/opt/cas/tomcat-9.0.41/webapps/cas-management/WEB-INF/lib/jackson-core-2.11.3.jar
com.fasterxml.jackson.core.TreeCodec: file:/opt/cas/tomcat-9.0.41/webapps/cas-management/WEB-INF/lib/jackson-core-2.11.3.jar
Action:
Correct the classpath of your application so that it contains a single, compatible version of com.fasterxml.jackson.dataformat.xml.XmlMapper
【问题讨论】：
-
你用什么编译
cas-management？您的jackson-databind、jackson-core和jackson-dataformat-xml的版本不兼容（参见Maven）。 -
我只是按照 git 中的说明进行构建，所以我运行
./gradlew clean copyCasConfiguration build没什么特别的 -
我将所有内容重新安装到两个具有不同域的不同 tomcat 服务器中，我从
/opt/cas/apache-tomcat-9.0.41/cas/ROOT/WEB-INF/lib/jackson-*的 cas 安装中获取 jar 文件并将它们复制到/opt/casmgmt/apache-tomcat-9.0.41/casmgmt/ROOT/WEB-INF/lib/中，并且 casmgmt 服务器服务器应用程序成功启动。显然，编写叠加层源代码的人对依赖项和所有内容存在某种错误配置