Java一个对象占用内存的大小查看

1.maven 导入

<!-- https://mvnrepository.com/artifact/com.carrotsearch/java-sizeof -->
<dependency>
    <groupId>com.carrotsearch</groupId>
    <artifactId>java-sizeof</artifactId>
    <version>0.0.5</version>
</dependency>

 

2.

log.info("RamUsageEstimator数据大小：{}", RamUsageEstimator.sizeOf(assetDetailList));

 

3.数据转换

 

 

来源： https://jingyan.baidu.com/article/cd4c297925f231756e6e600f.html