当前使用版本(必填,否则不予处理)
3.4.1
该问题是如何引起的？(确定最新版也有问题再提!!!)
调用 IService 的list方法时，由于使用了Wrappers.emptyWrapper()，在调用getTargetSql时报NullPointerException
重现步骤(如果有就写完整)
报错信息
Caused by: com.fasterxml.jackson.databind.JsonMappingException: (was java.lang.NullPointerException) (through reference chain: com.xxxx.common.db.entity.MyBatisRequest["args"]->org.apache.ibatis.binding.MapperMethod$ParamMap["ew"]->com.baomidou.mybatisplus.core.toolkit.Wrappers$EmptyWrapper["targetSql"]) at com.fasterxml.jackson.databind.JsonMappingException.wrapWithPath(JsonMappingException.java:394) at com.fasterxml.jackson.databind.JsonMappingException.wrapWithPath(JsonMappingException.java:353) at com.fasterxml.jackson.databind.ser.std.StdSerializer.wrapAndThrow(StdSerializer.java:316) at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:727) at com.fasterxml.jackson.databind.ser.BeanSerializer.serialize(BeanSerializer.java:155) at com.fasterxml.jackson.databind.ser.std.MapSerializer.serializeOptionalFields(MapSerializer.java:782) at com.fasterxml.jackson.databind.ser.std.MapSerializer.serialize(MapSerializer.java:639) at com.fasterxml.jackson.databind.ser.std.MapSerializer.serialize(MapSerializer.java:33) at com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:727) at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:719) at com.fasterxml.jackson.databind.ser.BeanSerializer.serialize(BeanSerializer.java:155) at com.fasterxml.jackson.databind.ser.DefaultSerializerProvider._serialize(DefaultSerializerProvider.java:480) at com.fasterxml.jackson.databind.ser.DefaultSerializerProvider.serializeValue(DefaultSerializerProvider.java:319) at com.fasterxml.jackson.databind.ObjectMapper._configAndWriteValue(ObjectMapper.java:3905) at com.fasterxml.jackson.databind.ObjectMapper.writeValueAsString(ObjectMapper.java:3219) at com.xxxx.common.util.JsonUtil.asString(JsonUtil.java:417) ... 126 more Caused by: java.lang.NullPointerException at com.baomidou.mybatisplus.core.conditions.Wrapper.getTargetSql(Wrapper.java:173) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:688) at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:719) ... 138 more
Comment From: miemieYaho
不支持