在 WebLogic 12.2.1.2.0 上使用 Spring-boot 2.1.2.RELEASE 进行部署时出现错误。这是堆栈跟踪:Caused By: java.lang.IllegalAccessError: tried to access method com.fasterxml.jackson.databind.ser.std.StdSerializer.<init>(Ljava/lang/Class;)V from class com.fasterxml.jackson.datatype.jsr310.JavaTimeModuleat com.fasterxml.jackson.datatype.jsr310.JavaTimeModule.<init>(JavaTimeModule.java:168)at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)at java.lang.reflect.Constructor.newInstance(Constructor.java:423)at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:172)at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:122)at org.springframework.http.converter.json.Jackson2ObjectMapperBuilder.registerWellKnownModulesIfAvailable(Jackson2ObjectMapperBuilder.java:760)at org.springframework.http.converter.json.Jackson2ObjectMapperBuilder.configure(Jackson2ObjectMapperBuilder.java:639)at org.springframework.http.converter.json.Jackson2ObjectMapperBuilder.build(Jackson2ObjectMapperBuilder.java:623)at org.springframework.http.converter.json.MappingJackson2HttpMessageConverter.<init>(MappingJackson2HttpMessageConverter.java:59)at org.springframework.http.converter.support.AllEncompassingFormHttpMessageConverter.<init>(AllEncompassingFormHttpMessageConverter.java:76)at org.springframework.web.filter.FormContentFilter.<init>(FormContentFilter.java:60)at org.springframework.boot.web.servlet.filter.OrderedFormContentFilter.<init>(OrderedFormContentFilter.java:29)at org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration.formContentFilter(WebMvcAutoConfiguration.java:166)我也尝试过使用 prefer-web-inf 类。StdSerializer 类在 jackson-datatype-jsr310:2.9.8 jar 中,理论上这不应该是一个问题,因为 welogic 没有包含 Jackson。任何帮助,将不胜感激。
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慕工程0101907
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1) 在 weblogic.xml 文件中只保留这些包,其他包是不必要的:
<wls:prefer-application-packages>
<wls:package-name>org.slf4j.*</wls:package-name>
<wls:package-name>org.springframeworks.*</wls:package-name>
<wls:package-name>com.fasterxml.jackson.*</wls:package-name>
</wls:prefer-application-packages>
2)根据Spring Docs第 92.1 节将其包含在您的 pom.xml 中:
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>
发生此错误是因为 Spring Boot 正在尝试启动 Tomcat 容器,导致类路径冲突。按照提供的方式设置依赖项将删除其中的大部分,并在 weblogic.xml 中包含 com.fasterxml.jackson.* 将处理剩余的冲突。
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