优化异常信息

mybatis-plus-core/src/main/java/com/baomidou/mybatisplus/core/conditions/AbstractLambdaWrapper.java

@@ -57,15 +57,15 @@ public abstract class AbstractLambdaWrapper<T, This extends AbstractLambdaWrappe
     }
 
     private String getColumn(SerializedLambda lambda) {
-        String fieldName = StringUtils.resolveFieldName(lambda.getImplMethodName()).toUpperCase(Locale.ENGLISH);
-        if (!initColumnMap || !columnMap.containsKey(fieldName)) {
+        String fieldName = StringUtils.resolveFieldName(lambda.getImplMethodName());
+        if (!initColumnMap || !columnMap.containsKey(fieldName.toUpperCase(Locale.ENGLISH))) {
             String entityClassName = lambda.getImplClassName();
             columnMap = LambdaUtils.getColumnMap(entityClassName);
             Assert.notEmpty(columnMap, "cannot find column's cache for %s, so you cannot used %s!",
                 entityClassName, typedThis.getClass());
             initColumnMap = true;
         }
-        return Optional.ofNullable(columnMap.get(fieldName))
+        return Optional.ofNullable(columnMap.get(fieldName.toUpperCase(Locale.ENGLISH)))
             .orElseThrow(() -> ExceptionUtils.mpe("your property named %s cannot find the corresponding database column name!", fieldName));
     }
 }