feat: 漏洞检测-新增QLExpress表达式注入检测时判断安全配置是否开启 #596
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Nizernizer
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Oct 25, 2023
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卸载时把 QLExpressCheck.setQLClassLoader 置空，如果loader还在那么这个引用还在，会导致该类卸载不掉
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如果不是用SetQLClassLoader 直接使用Class.forName 会存在该情况吗
我看FastJSONCheck也没有做这些处理
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如果不是用SetQLClassLoader 直接使用Class.forName 会存在该情况吗 我看FastJSONCheck也没有做这些处理
底层原理是：类成员变量尽量不要引用被插桩程序对象，若必须引用情况的下，要在卸载时将其置空取消引用。类成员变量随着对象的建立而建立，随着对象的消失而消失，存在于对象所在的堆内存中，所以如果不把其置为空，单卸载iastclassloader是没办法将该引用取消的。
Class.forName 也分情况，若有对被插桩应用的引用，就会存在这种情况。
FastJSONCheck 同样需要置空
15911075183ma
approved these changes
Nov 7, 2023
| return true; | ||
| } | ||
| }catch (Throwable e){ | ||
| DongTaiLog.debug("Beim Abrufen der Felder der QLExpress-Komponente ist ein Fehler aufgetreten.: {}, {}", |
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