java.lang.NoClassDefFoundError: Could not initialize class me.chanjar.weixin.mp.util.xml.XStreamTransformer

错误：

WARN reactor.core.Exceptions ? - throwIfFatal detected a jvm fatal exception, which is thrown and logged below: java.lang.NoClassDefFoundError: Could not initialize class me.chanjar.weixin.mp.util.xml.XStreamTransformer at me.chanjar.weixin.mp.bean.message.WxMpXmlMessage.fromXml(WxMpXmlMessage.java:651) at com.tkwm.wx.mp.controller.WxPortalController.post(WxPortalController.java:71) at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104) at java.base/java.lang.reflect.Method.invoke(Method.java:578) at org.springframework.web.reactive.result.method.InvocableHandlerMethod.lambda$invoke$0(InvocableHandlerMethod.java:144) at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:125) at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1816) at reactor.core.publisher.MonoZip$ZipCoordinator.signal(MonoZip.java:251) at reactor.core.publisher.MonoZip$ZipInner.onNext(MonoZip.java:336)

原因：

程序缺少xstream依赖，造成xml无法解析

解决方法：

pom.xml中加入xstream依赖

<dependency>
    <groupId>com.thoughtworks.xstream</groupId>
    <artifactId>xstream</artifactId>
    <version>1.4.20</version>
</dependency>

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