Weblogic 12c上的Spring-boot War

Question

我在WebLogic 12.2.1.2.0上部署Spring-boot 2.1.2.RELEASE时遇到错误。

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.JavaTimeModule
at 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)

我已经尝试将其添加到weblogic.xml：

  <wls:package-name>com.fasterxml.*</wls:package-name>
      <wls:package-name>com.fasterxml.jackson.databind.*</wls:package-name>
      <wls:package-name>com.fasterxml.jackson.*</wls:package-name>
      <wls:package-name>com.fasterxml.jackson.datatype.jsr310.*</wls:package-name>
      <wls:package-name>com.fasterxml.jackson.datatype.*</wls:package-name>
      <wls:package-name>com.fasterxml.jackson.module.*</wls:package-name>

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。

Answer 1

1）只在weblogic.xml文件中保留这些包，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，从而导致类路径冲突。设置依赖关系将删除其中的大多数依赖项，并且在weblogic.xml中包括com.fasterxml.jackson。*将处理剩余的冲突。