Java——使用ObjectMapper.writeValueAsString时报错The type com.fasterxml.jackson.core.JsonProcessingException cannot be resolved. It is indirectly referenced from required .class files | 报错

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Java——使用ObjectMapper.writeValueAsString时报错The type com.fasterxml.jackson.core.JsonProcessingException cannot be resolved. It is indirectly referenced from required .class files

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报错信息：

The type com.fasterxml.jackson.core.JsonProcessingException cannot be resolved. It is indirectly referenced from required .class files

报错截图：

Java——使用ObjectMapper.writeValueAsString时报错The type com.fasterxml.jackson.core.JsonProcessingException cannot be resolved. It is indirectly referenced from required .class files-LMLPHP

原因：缺少引用的jar包

Java——使用ObjectMapper.writeValueAsString时报错The type com.fasterxml.jackson.core.JsonProcessingException cannot be resolved. It is indirectly referenced from required .class files-LMLPHP

在引入jar包时，只引入了databind包，而没有引入core包

05-07 15:17