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阿里规范手册学习
阿里规范手册学习
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.obsidian/workspace

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"java/阿里开发手册笔记.md",
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"java/Java8 LocalDataTime String互转格式报错.md",
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"java/Swagger学习及knife4j学习.md",
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"java/多线程学习/多线程学习六、Java并发编程三大特征:原子性、可见性、有序性以及volatile保证可见性分析进一步分析.md",
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java/阿里规范手册/阿里开发手册笔记.md

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@@ -164,4 +164,5 @@ public class Test {
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- 远程调用返回对象时,一律要求进行空指针判断,防止 NPE
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- 对于 Session 中获取的数据,建议进行 NPE 检查,避免空指针。
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- 级联调用 obj.getA().getB().getC();一连串调用,易产生 NPE
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正例:使用 JDK8Optional 类来防止 NPE 问题。
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正例:使用 JDK8Optional 类来防止 NPE 问题。
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